refactor: typescript refactoring ♻️

.commitlintrc.yaml

@@ -0,0 +1,2 @@
+extends:
+  - "@commitlint/config-conventional"

.czrc

@@ -0,0 +1,3 @@
+{
+  "path": "cz-conventional-changelog"
+}

.editorconfig

@@ -0,0 +1,16 @@
+# EditorConfig  http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# All files
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.sol]
+indent_size = 4

.env.example

@@ -0,0 +1,9 @@
+INFURA_API_KEY="{INSERT_API_KEY}"
+MNEMONIC="{INSERT_12_WORD_MNEMONIC}"
+
+# Block explorer API keys
+ETHERSCAN_API_KEY="{INSERT_API_KEY}"
+GASPRICE_API_ENDPOINT="https://api.etherscan.io/api?module=proxy&action=eth_gasPrice"
+COINMARKETCAP_API_KEY="{INSERT_API_KEY}"
+
+REPORT_GAS="true"

.eslintignore

@@ -0,0 +1,21 @@
+# directories
+.yarn/
+**/.coverage_artifacts
+**/.coverage_cache
+**/.coverage_contracts
+**/artifacts
+**/build
+**/cache
+**/coverage
+**/dist
+**/node_modules
+**/types
+
+# files
+*.env
+*.log
+.pnp.*
+coverage.json
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

.eslintrc.yaml

@@ -0,0 +1,21 @@
+extends:
+  - "eslint:recommended"
+  - "plugin:@typescript-eslint/eslint-recommended"
+  - "plugin:@typescript-eslint/recommended"
+  - "prettier"
+parser: "@typescript-eslint/parser"
+parserOptions:
+  project: "./tsconfig.json"
+plugins:
+  - "@typescript-eslint"
+root: true
+rules:
+  "@typescript-eslint/no-floating-promises":
+    - error
+    - ignoreIIFE: true
+      ignoreVoid: true
+  "@typescript-eslint/no-inferrable-types": "off"
+  "@typescript-eslint/no-unused-vars":
+    - error
+    - argsIgnorePattern: "_"
+      varsIgnorePattern: "_"

.gitignore

@@ -1,9 +1,28 @@
-node_modules
-.env
-coverage
-coverage.json
-
-#Hardhat files
-cache
+# directories
+.yarn/*
+!.yarn/patches
+!.yarn/releases
+!.yarn/plugins
+!.yarn/sdks
+!.yarn/versions
+# **/artifacts
+artifacts/@openzeppelin
 artifacts/build-info
-artifacts/@openzeppelin
+**/build
+**/ref
+**/cache
+**/coverage
+**/.coverage_artifacts
+**/.coverage_cache
+**/.coverage_contracts
+**/dist
+**/node_modules
+
+# files
+*.env
+*.log
+.pnp.*
+coverage.json
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

.husky/.gitignore

@@ -0,0 +1 @@
+_

.husky/commit-msg

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+yarn dlx commitlint --edit $1

.husky/pre-commit

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+yarn dlx lint-staged

.lintstagedrc

@@ -0,0 +1,5 @@
+{
+  "*.{js,json,md,sol,ts,yaml,yml}": [
+    "prettier --config ./.prettierrc.yaml --write"
+  ]
+}

.prettierignore

@@ -0,0 +1,21 @@
+# directories
+.yarn/
+**/.coverage_artifacts
+**/.coverage_cache
+**/.coverage_contracts
+**/artifacts
+**/build
+**/cache
+**/coverage
+**/dist
+**/node_modules
+**/types
+
+# files
+*.env
+*.log
+.pnp.*
+coverage.json
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

.prettierrc.yaml

@@ -0,0 +1,16 @@
+arrowParens: avoid
+bracketSpacing: true
+endOfLine: auto
+importOrder: ["<THIRD_PARTY_MODULES>", "^[./]"]
+importOrderParserPlugins: ["typescript"]
+importOrderSeparation: true
+importOrderSortSpecifiers: true
+printWidth: 62
+singleQuote: false
+tabWidth: 2
+trailingComma: all
+
+overrides:
+  - files: "*.sol"
+    options:
+      tabWidth: 4

.solcover.js

@@ -0,0 +1,7 @@
+module.exports = {
+  istanbulReporter: ["html", "lcov"],
+  providerOptions: {
+    mnemonic: process.env.MNEMONIC,
+  },
+  skipFiles: ["test"],
+};

.solhint.json

@@ -0,0 +1,23 @@
+{
+  "extends": "solhint:recommended",
+  "plugins": ["prettier"],
+  "rules": {
+    "code-complexity": ["error", 8],
+    "compiler-version": ["error", ">=0.8.4"],
+    "const-name-snakecase": "off",
+    "constructor-syntax": "error",
+    "func-visibility": [
+      "error",
+      { "ignoreConstructors": true }
+    ],
+    "max-line-length": ["error", 120],
+    "not-rely-on-time": "off",
+    "prettier/prettier": [
+      "error",
+      {
+        "endOfLine": "auto"
+      }
+    ],
+    "reason-string": ["warn", { "maxLength": 64 }]
+  }
+}

.solhintignore

@@ -0,0 +1,3 @@
+# directories
+**/artifacts
+**/node_modules

.yarnrc.yml

@@ -0,0 +1,7 @@
+nodeLinker: node-modules
+
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
+    spec: "@yarnpkg/plugin-interactive-tools"
+
+yarnPath: .yarn/releases/yarn-3.2.1.cjs

README.md

@@ -1,68 +1,78 @@
 # p2pix-smart-contracts
 
-Repository for P2Pix EVM contracts to be imported by the project.
+**Repository for P2Pix EVM contracts to be imported by the project.**
 
-## Installation
+## Usage
 
-Import the repository on your app to allow use the artifacts for Ethers.
+### Pre Requisites
 
+Before installing, create a `.env` file and set a BIP-39 compatible mnemonic and other env criteria as in `.env.example`.
+
+### Install
+
+```sh
+$ yarn install
 ```
-npm install --save git+https://github.com/doiim/p2pix-smart-contracts.git
+
+### Compile
+
+```sh
+$ yarn compile
 ```
 
+**_NOTE:_** TypeChain artifacts generated at compile time.
+
+### Test
+
+```sh
+$ yarn test
+```
+
+### Report Gas
+
+```sh
+$ REPORT_GAS=true yarn test
+```
+
+**_NOTE_:** Gas usage per unit test and average gas per method call.
+
+### Clean
+
+Delete the smart contract artifacts and cache:
+
+```sh
+$ yarn clean
+```
+
+## Importing artifacts
+
 To import artifacts on the project use the following:
 
-```
+```ts
 import P2PIXArtifact from 'p2pix-smart-contracts/artifacts/contracts/p2pix.sol/P2PIX.json'
 ```
 
 To grab deployment addresses you can just grab from deploys folder:
-```
+
+```ts
 import localhostDeploys from 'p2pix-smart-contracts/deploys/localhost.json'
 ```
 
-The default deploy addresses for localhost is the following:
-| Contract | Address | 
-|-|-|
-|p2pix|`0x5FbDB2315678afecb367f032d93F642f64180aa3`|
-|token|`0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512`|
 
-Then use a Contract instance to interact directly with it:
+## Deploying to local environment
 
-```
-const p2pixContract = new ethers.Contract(address, P2PIXArtifact.abi, signer);
+On the first teminal, use the following command and import some wallets to your Metamask, then connect to the network pointed:
+
+```sh
+yarn hardhat node
 ```
 
-## Deploying local environment
+On the second teminal, run the following commands:
 
-Clone the repo and install dependencies:
-```
-git clone https://github.com/doiim/p2pix-smart-contracts.git
-cd p2pix-smart-contract
-npm install
+```sh
+yarn deploy1:localhost
+yarn deploy2:localhost
 ```
 
-On the first teminal use the following command and import some wallets to your Metamask and connect to the network pointed:
-```
-npx hardhat node
-```
-
-On the second teminal run following commands:
-```
-npx hardhat run --network localhost scripts/1-deploy-p2pix.js
-npx hardhat run --network localhost scripts/2-deploy-mockToken.js
-```
-
-The second script transfer 2M tokens to the firrs wallet of the node.
+**_NOTE_:** The second script transfers 2M tokens to the first wallet of the node.
 To use the P2Pix smart contract first transfer some of the tokens to other wallets.
-
-## Testing
-
-To run tests, clone this repo, install dependencies and run Hardhat tests.
-
-```
-git clone https://github.com/doiim/p2pix-smart-contracts.git
-cd p2pix-smart-contract
-npm install
-npx hardhat test
-```

artifacts/contracts/@openzeppelin/contracts/access/Ownable.sol/Ownable.dbg.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../../../../build-info/dbb5a55867d7e81ad1b5b45703a00001.json"
+}

artifacts/contracts/@openzeppelin/contracts/access/Ownable.sol/Ownable.json

@@ -0,0 +1,63 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "Ownable",
+  "sourceName": "contracts/@openzeppelin/contracts/access/Ownable.sol",
+  "abi": [
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "previousOwner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "OwnershipTransferred",
+      "type": "event"
+    },
+    {
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "renounceOwnership",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "bytecode": "0x",
+  "deployedBytecode": "0x",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}

artifacts/contracts/@openzeppelin/contracts/token/ERC20/ERC20.sol/ERC20.dbg.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../../../../../build-info/dbb5a55867d7e81ad1b5b45703a00001.json"
+}

artifacts/contracts/@openzeppelin/contracts/token/ERC20/IERC20.sol/IERC20.dbg.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../../../../../build-info/dbb5a55867d7e81ad1b5b45703a00001.json"
+}

artifacts/contracts/@openzeppelin/contracts/token/ERC20/IERC20.sol/IERC20.json

@@ -0,0 +1,194 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "IERC20",
+  "sourceName": "contracts/@openzeppelin/contracts/token/ERC20/IERC20.sol",
+  "abi": [
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "account",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "bytecode": "0x",
+  "deployedBytecode": "0x",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}

artifacts/contracts/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol/IERC20Metadata.dbg.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../../../../../../build-info/dbb5a55867d7e81ad1b5b45703a00001.json"
+}

artifacts/contracts/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol/IERC20Metadata.json

@@ -0,0 +1,233 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "IERC20Metadata",
+  "sourceName": "contracts/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol",
+  "abi": [
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "account",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "decimals",
+      "outputs": [
+        {
+          "internalType": "uint8",
+          "name": "",
+          "type": "uint8"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "name",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "symbol",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "bytecode": "0x",
+  "deployedBytecode": "0x",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}

artifacts/contracts/@openzeppelin/contracts/utils/Context.sol/Context.dbg.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../../../../build-info/dbb5a55867d7e81ad1b5b45703a00001.json"
+}

artifacts/contracts/@openzeppelin/contracts/utils/Context.sol/Context.json

@@ -0,0 +1,10 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "Context",
+  "sourceName": "contracts/@openzeppelin/contracts/utils/Context.sol",
+  "abi": [],
+  "bytecode": "0x",
+  "deployedBytecode": "0x",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}

artifacts/contracts/@openzeppelin/contracts/utils/Counters.sol/Counters.dbg.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../../../../build-info/dbb5a55867d7e81ad1b5b45703a00001.json"
+}

artifacts/contracts/@openzeppelin/contracts/utils/Counters.sol/Counters.json

@@ -0,0 +1,10 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "Counters",
+  "sourceName": "contracts/@openzeppelin/contracts/utils/Counters.sol",
+  "abi": [],
+  "bytecode": "0x602d6037600b82828239805160001a607314602a57634e487b7160e01b600052600060045260246000fd5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000809000a",
+  "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000809000a",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}

artifacts/contracts/mockToken.sol/MockToken.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../build-info/5f0db55f399477fd77a196dfab69a373.json"
+  "buildInfo": "../../build-info/dbb5a55867d7e81ad1b5b45703a00001.json"
 }

artifacts/contracts/p2pix.sol/P2PIX.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../build-info/7de52626ee9f8f66be6a4217c265b719.json"
+  "buildInfo": "../../build-info/dbb5a55867d7e81ad1b5b45703a00001.json"
 }

contracts/@openzeppelin/contracts/access/Ownable.sol

@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
+
+pragma solidity ^0.8.0;
+
+import "../utils/Context.sol";
+
+/**
+ * @dev Contract module which provides a basic access control mechanism, where
+ * there is an account (an owner) that can be granted exclusive access to
+ * specific functions.
+ *
+ * By default, the owner account will be the one that deploys the contract. This
+ * can later be changed with {transferOwnership}.
+ *
+ * This module is used through inheritance. It will make available the modifier
+ * `onlyOwner`, which can be applied to your functions to restrict their use to
+ * the owner.
+ */
+abstract contract Ownable is Context {
+    address private _owner;
+
+    event OwnershipTransferred(
+        address indexed previousOwner,
+        address indexed newOwner
+    );
+
+    /**
+     * @dev Initializes the contract setting the deployer as the initial owner.
+     */
+    constructor() {
+        _transferOwnership(_msgSender());
+    }
+
+    /**
+     * @dev Throws if called by any account other than the owner.
+     */
+    modifier onlyOwner() {
+        _checkOwner();
+        _;
+    }
+
+    /**
+     * @dev Returns the address of the current owner.
+     */
+    function owner() public view virtual returns (address) {
+        return _owner;
+    }
+
+    /**
+     * @dev Throws if the sender is not the owner.
+     */
+    function _checkOwner() internal view virtual {
+        require(
+            owner() == _msgSender(),
+            "Ownable: caller is not the owner"
+        );
+    }
+
+    /**
+     * @dev Leaves the contract without owner. It will not be possible to call
+     * `onlyOwner` functions anymore. Can only be called by the current owner.
+     *
+     * NOTE: Renouncing ownership will leave the contract without an owner,
+     * thereby removing any functionality that is only available to the owner.
+     */
+    function renounceOwnership() public virtual onlyOwner {
+        _transferOwnership(address(0));
+    }
+
+    /**
+     * @dev Transfers ownership of the contract to a new account (`newOwner`).
+     * Can only be called by the current owner.
+     */
+    function transferOwnership(
+        address newOwner
+    ) public virtual onlyOwner {
+        require(
+            newOwner != address(0),
+            "Ownable: new owner is the zero address"
+        );
+        _transferOwnership(newOwner);
+    }
+
+    /**
+     * @dev Transfers ownership of the contract to a new account (`newOwner`).
+     * Internal function without access restriction.
+     */
+    function _transferOwnership(
+        address newOwner
+    ) internal virtual {
+        address oldOwner = _owner;
+        _owner = newOwner;
+        emit OwnershipTransferred(oldOwner, newOwner);
+    }
+}

contracts/@openzeppelin/contracts/token/ERC20/ERC20.sol

@@ -0,0 +1,479 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)
+
+pragma solidity ^0.8.0;
+
+import "./IERC20.sol";
+import "./extensions/IERC20Metadata.sol";
+import "../../utils/Context.sol";
+
+/**
+ * @dev Implementation of the {IERC20} interface.
+ *
+ * This implementation is agnostic to the way tokens are created. This means
+ * that a supply mechanism has to be added in a derived contract using {_mint}.
+ * For a generic mechanism see {ERC20PresetMinterPauser}.
+ *
+ * TIP: For a detailed writeup see our guide
+ * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
+ * to implement supply mechanisms].
+ *
+ * We have followed general OpenZeppelin Contracts guidelines: functions revert
+ * instead returning `false` on failure. This behavior is nonetheless
+ * conventional and does not conflict with the expectations of ERC20
+ * applications.
+ *
+ * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
+ * This allows applications to reconstruct the allowance for all accounts just
+ * by listening to said events. Other implementations of the EIP may not emit
+ * these events, as it isn't required by the specification.
+ *
+ * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
+ * functions have been added to mitigate the well-known issues around setting
+ * allowances. See {IERC20-approve}.
+ */
+contract ERC20 is Context, IERC20, IERC20Metadata {
+    mapping(address => uint256) private _balances;
+
+    mapping(address => mapping(address => uint256))
+        private _allowances;
+
+    uint256 private _totalSupply;
+
+    string private _name;
+    string private _symbol;
+
+    /**
+     * @dev Sets the values for {name} and {symbol}.
+     *
+     * The default value of {decimals} is 18. To select a different value for
+     * {decimals} you should overload it.
+     *
+     * All two of these values are immutable: they can only be set once during
+     * construction.
+     */
+    constructor(string memory name_, string memory symbol_) {
+        _name = name_;
+        _symbol = symbol_;
+    }
+
+    /**
+     * @dev Returns the name of the token.
+     */
+    function name()
+        public
+        view
+        virtual
+        override
+        returns (string memory)
+    {
+        return _name;
+    }
+
+    /**
+     * @dev Returns the symbol of the token, usually a shorter version of the
+     * name.
+     */
+    function symbol()
+        public
+        view
+        virtual
+        override
+        returns (string memory)
+    {
+        return _symbol;
+    }
+
+    /**
+     * @dev Returns the number of decimals used to get its user representation.
+     * For example, if `decimals` equals `2`, a balance of `505` tokens should
+     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
+     *
+     * Tokens usually opt for a value of 18, imitating the relationship between
+     * Ether and Wei. This is the value {ERC20} uses, unless this function is
+     * overridden;
+     *
+     * NOTE: This information is only used for _display_ purposes: it in
+     * no way affects any of the arithmetic of the contract, including
+     * {IERC20-balanceOf} and {IERC20-transfer}.
+     */
+    function decimals()
+        public
+        view
+        virtual
+        override
+        returns (uint8)
+    {
+        return 18;
+    }
+
+    /**
+     * @dev See {IERC20-totalSupply}.
+     */
+    function totalSupply()
+        public
+        view
+        virtual
+        override
+        returns (uint256)
+    {
+        return _totalSupply;
+    }
+
+    /**
+     * @dev See {IERC20-balanceOf}.
+     */
+    function balanceOf(
+        address account
+    ) public view virtual override returns (uint256) {
+        return _balances[account];
+    }
+
+    /**
+     * @dev See {IERC20-transfer}.
+     *
+     * Requirements:
+     *
+     * - `to` cannot be the zero address.
+     * - the caller must have a balance of at least `amount`.
+     */
+    function transfer(
+        address to,
+        uint256 amount
+    ) public virtual override returns (bool) {
+        address owner = _msgSender();
+        _transfer(owner, to, amount);
+        return true;
+    }
+
+    /**
+     * @dev See {IERC20-allowance}.
+     */
+    function allowance(
+        address owner,
+        address spender
+    ) public view virtual override returns (uint256) {
+        return _allowances[owner][spender];
+    }
+
+    /**
+     * @dev See {IERC20-approve}.
+     *
+     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
+     * `transferFrom`. This is semantically equivalent to an infinite approval.
+     *
+     * Requirements:
+     *
+     * - `spender` cannot be the zero address.
+     */
+    function approve(
+        address spender,
+        uint256 amount
+    ) public virtual override returns (bool) {
+        address owner = _msgSender();
+        _approve(owner, spender, amount);
+        return true;
+    }
+
+    /**
+     * @dev See {IERC20-transferFrom}.
+     *
+     * Emits an {Approval} event indicating the updated allowance. This is not
+     * required by the EIP. See the note at the beginning of {ERC20}.
+     *
+     * NOTE: Does not update the allowance if the current allowance
+     * is the maximum `uint256`.
+     *
+     * Requirements:
+     *
+     * - `from` and `to` cannot be the zero address.
+     * - `from` must have a balance of at least `amount`.
+     * - the caller must have allowance for ``from``'s tokens of at least
+     * `amount`.
+     */
+    function transferFrom(
+        address from,
+        address to,
+        uint256 amount
+    ) public virtual override returns (bool) {
+        address spender = _msgSender();
+        _spendAllowance(from, spender, amount);
+        _transfer(from, to, amount);
+        return true;
+    }
+
+    /**
+     * @dev Atomically increases the allowance granted to `spender` by the caller.
+     *
+     * This is an alternative to {approve} that can be used as a mitigation for
+     * problems described in {IERC20-approve}.
+     *
+     * Emits an {Approval} event indicating the updated allowance.
+     *
+     * Requirements:
+     *
+     * - `spender` cannot be the zero address.
+     */
+    function increaseAllowance(
+        address spender,
+        uint256 addedValue
+    ) public virtual returns (bool) {
+        address owner = _msgSender();
+        _approve(
+            owner,
+            spender,
+            allowance(owner, spender) + addedValue
+        );
+        return true;
+    }
+
+    /**
+     * @dev Atomically decreases the allowance granted to `spender` by the caller.
+     *
+     * This is an alternative to {approve} that can be used as a mitigation for
+     * problems described in {IERC20-approve}.
+     *
+     * Emits an {Approval} event indicating the updated allowance.
+     *
+     * Requirements:
+     *
+     * - `spender` cannot be the zero address.
+     * - `spender` must have allowance for the caller of at least
+     * `subtractedValue`.
+     */
+    function decreaseAllowance(
+        address spender,
+        uint256 subtractedValue
+    ) public virtual returns (bool) {
+        address owner = _msgSender();
+        uint256 currentAllowance = allowance(owner, spender);
+        require(
+            currentAllowance >= subtractedValue,
+            "ERC20: decreased allowance below zero"
+        );
+        unchecked {
+            _approve(
+                owner,
+                spender,
+                currentAllowance - subtractedValue
+            );
+        }
+
+        return true;
+    }
+
+    /**
+     * @dev Moves `amount` of tokens from `from` to `to`.
+     *
+     * This internal function is equivalent to {transfer}, and can be used to
+     * e.g. implement automatic token fees, slashing mechanisms, etc.
+     *
+     * Emits a {Transfer} event.
+     *
+     * Requirements:
+     *
+     * - `from` cannot be the zero address.
+     * - `to` cannot be the zero address.
+     * - `from` must have a balance of at least `amount`.
+     */
+    function _transfer(
+        address from,
+        address to,
+        uint256 amount
+    ) internal virtual {
+        require(
+            from != address(0),
+            "ERC20: transfer from the zero address"
+        );
+        require(
+            to != address(0),
+            "ERC20: transfer to the zero address"
+        );
+
+        _beforeTokenTransfer(from, to, amount);
+
+        uint256 fromBalance = _balances[from];
+        require(
+            fromBalance >= amount,
+            "ERC20: transfer amount exceeds balance"
+        );
+        unchecked {
+            _balances[from] = fromBalance - amount;
+            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
+            // decrementing then incrementing.
+            _balances[to] += amount;
+        }
+
+        emit Transfer(from, to, amount);
+
+        _afterTokenTransfer(from, to, amount);
+    }
+
+    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
+     * the total supply.
+     *
+     * Emits a {Transfer} event with `from` set to the zero address.
+     *
+     * Requirements:
+     *
+     * - `account` cannot be the zero address.
+     */
+    function _mint(
+        address account,
+        uint256 amount
+    ) internal virtual {
+        require(
+            account != address(0),
+            "ERC20: mint to the zero address"
+        );
+
+        _beforeTokenTransfer(address(0), account, amount);
+
+        _totalSupply += amount;
+        unchecked {
+            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
+            _balances[account] += amount;
+        }
+        emit Transfer(address(0), account, amount);
+
+        _afterTokenTransfer(address(0), account, amount);
+    }
+
+    /**
+     * @dev Destroys `amount` tokens from `account`, reducing the
+     * total supply.
+     *
+     * Emits a {Transfer} event with `to` set to the zero address.
+     *
+     * Requirements:
+     *
+     * - `account` cannot be the zero address.
+     * - `account` must have at least `amount` tokens.
+     */
+    function _burn(
+        address account,
+        uint256 amount
+    ) internal virtual {
+        require(
+            account != address(0),
+            "ERC20: burn from the zero address"
+        );
+
+        _beforeTokenTransfer(account, address(0), amount);
+
+        uint256 accountBalance = _balances[account];
+        require(
+            accountBalance >= amount,
+            "ERC20: burn amount exceeds balance"
+        );
+        unchecked {
+            _balances[account] = accountBalance - amount;
+            // Overflow not possible: amount <= accountBalance <= totalSupply.
+            _totalSupply -= amount;
+        }
+
+        emit Transfer(account, address(0), amount);
+
+        _afterTokenTransfer(account, address(0), amount);
+    }
+
+    /**
+     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
+     *
+     * This internal function is equivalent to `approve`, and can be used to
+     * e.g. set automatic allowances for certain subsystems, etc.
+     *
+     * Emits an {Approval} event.
+     *
+     * Requirements:
+     *
+     * - `owner` cannot be the zero address.
+     * - `spender` cannot be the zero address.
+     */
+    function _approve(
+        address owner,
+        address spender,
+        uint256 amount
+    ) internal virtual {
+        require(
+            owner != address(0),
+            "ERC20: approve from the zero address"
+        );
+        require(
+            spender != address(0),
+            "ERC20: approve to the zero address"
+        );
+
+        _allowances[owner][spender] = amount;
+        emit Approval(owner, spender, amount);
+    }
+
+    /**
+     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
+     *
+     * Does not update the allowance amount in case of infinite allowance.
+     * Revert if not enough allowance is available.
+     *
+     * Might emit an {Approval} event.
+     */
+    function _spendAllowance(
+        address owner,
+        address spender,
+        uint256 amount
+    ) internal virtual {
+        uint256 currentAllowance = allowance(owner, spender);
+        if (currentAllowance != type(uint256).max) {
+            require(
+                currentAllowance >= amount,
+                "ERC20: insufficient allowance"
+            );
+            unchecked {
+                _approve(
+                    owner,
+                    spender,
+                    currentAllowance - amount
+                );
+            }
+        }
+    }
+
+    /**
+     * @dev Hook that is called before any transfer of tokens. This includes
+     * minting and burning.
+     *
+     * Calling conditions:
+     *
+     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
+     * will be transferred to `to`.
+     * - when `from` is zero, `amount` tokens will be minted for `to`.
+     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
+     * - `from` and `to` are never both zero.
+     *
+     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
+     */
+    function _beforeTokenTransfer(
+        address from,
+        address to,
+        uint256 amount
+    ) internal virtual {}
+
+    /**
+     * @dev Hook that is called after any transfer of tokens. This includes
+     * minting and burning.
+     *
+     * Calling conditions:
+     *
+     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
+     * has been transferred to `to`.
+     * - when `from` is zero, `amount` tokens have been minted for `to`.
+     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
+     * - `from` and `to` are never both zero.
+     *
+     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
+     */
+    function _afterTokenTransfer(
+        address from,
+        address to,
+        uint256 amount
+    ) internal virtual {}
+}

contracts/@openzeppelin/contracts/token/ERC20/IERC20.sol

@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @dev Interface of the ERC20 standard as defined in the EIP.
+ */
+interface IERC20 {
+    /**
+     * @dev Emitted when `value` tokens are moved from one account (`from`) to
+     * another (`to`).
+     *
+     * Note that `value` may be zero.
+     */
+    event Transfer(
+        address indexed from,
+        address indexed to,
+        uint256 value
+    );
+
+    /**
+     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
+     * a call to {approve}. `value` is the new allowance.
+     */
+    event Approval(
+        address indexed owner,
+        address indexed spender,
+        uint256 value
+    );
+
+    /**
+     * @dev Returns the amount of tokens in existence.
+     */
+    function totalSupply() external view returns (uint256);
+
+    /**
+     * @dev Returns the amount of tokens owned by `account`.
+     */
+    function balanceOf(
+        address account
+    ) external view returns (uint256);
+
+    /**
+     * @dev Moves `amount` tokens from the caller's account to `to`.
+     *
+     * Returns a boolean value indicating whether the operation succeeded.
+     *
+     * Emits a {Transfer} event.
+     */
+    function transfer(
+        address to,
+        uint256 amount
+    ) external returns (bool);
+
+    /**
+     * @dev Returns the remaining number of tokens that `spender` will be
+     * allowed to spend on behalf of `owner` through {transferFrom}. This is
+     * zero by default.
+     *
+     * This value changes when {approve} or {transferFrom} are called.
+     */
+    function allowance(
+        address owner,
+        address spender
+    ) external view returns (uint256);
+
+    /**
+     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
+     *
+     * Returns a boolean value indicating whether the operation succeeded.
+     *
+     * IMPORTANT: Beware that changing an allowance with this method brings the risk
+     * that someone may use both the old and the new allowance by unfortunate
+     * transaction ordering. One possible solution to mitigate this race
+     * condition is to first reduce the spender's allowance to 0 and set the
+     * desired value afterwards:
+     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
+     *
+     * Emits an {Approval} event.
+     */
+    function approve(
+        address spender,
+        uint256 amount
+    ) external returns (bool);
+
+    /**
+     * @dev Moves `amount` tokens from `from` to `to` using the
+     * allowance mechanism. `amount` is then deducted from the caller's
+     * allowance.
+     *
+     * Returns a boolean value indicating whether the operation succeeded.
+     *
+     * Emits a {Transfer} event.
+     */
+    function transferFrom(
+        address from,
+        address to,
+        uint256 amount
+    ) external returns (bool);
+}

contracts/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
+
+pragma solidity ^0.8.0;
+
+import "../IERC20.sol";
+
+/**
+ * @dev Interface for the optional metadata functions from the ERC20 standard.
+ *
+ * _Available since v4.1._
+ */
+interface IERC20Metadata is IERC20 {
+    /**
+     * @dev Returns the name of the token.
+     */
+    function name() external view returns (string memory);
+
+    /**
+     * @dev Returns the symbol of the token.
+     */
+    function symbol() external view returns (string memory);
+
+    /**
+     * @dev Returns the decimals places of the token.
+     */
+    function decimals() external view returns (uint8);
+}

contracts/@openzeppelin/contracts/utils/Context.sol

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @dev Provides information about the current execution context, including the
+ * sender of the transaction and its data. While these are generally available
+ * via msg.sender and msg.data, they should not be accessed in such a direct
+ * manner, since when dealing with meta-transactions the account sending and
+ * paying for execution may not be the actual sender (as far as an application
+ * is concerned).
+ *
+ * This contract is only required for intermediate, library-like contracts.
+ */
+abstract contract Context {
+    function _msgSender()
+        internal
+        view
+        virtual
+        returns (address)
+    {
+        return msg.sender;
+    }
+
+    function _msgData()
+        internal
+        view
+        virtual
+        returns (bytes calldata)
+    {
+        return msg.data;
+    }
+}

contracts/@openzeppelin/contracts/utils/Counters.sol

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @title Counters
+ * @author Matt Condon (@shrugs)
+ * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
+ * of elements in a mapping, issuing ERC721 ids, or counting request ids.
+ *
+ * Include with `using Counters for Counters.Counter;`
+ */
+library Counters {
+    struct Counter {
+        // This variable should never be directly accessed by users of the library: interactions must be restricted to
+        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
+        // this feature: see https://github.com/ethereum/solidity/issues/4637
+        uint256 _value; // default: 0
+    }
+
+    function current(
+        Counter storage counter
+    ) internal view returns (uint256) {
+        return counter._value;
+    }
+
+    function increment(Counter storage counter) internal {
+        unchecked {
+            counter._value += 1;
+        }
+    }
+
+    function decrement(Counter storage counter) internal {
+        uint256 value = counter._value;
+        require(value > 0, "Counter: decrement overflow");
+        unchecked {
+            counter._value = value - 1;
+        }
+    }
+
+    function reset(Counter storage counter) internal {
+        counter._value = 0;
+    }
+}

contracts/mockToken.sol

@@ -1,11 +1,10 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.9;
 
-import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+import "./@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
 contract MockToken is ERC20 {
-
     constructor(uint256 supply) ERC20("MockBRL", "MBRL") {
         _mint(msg.sender, supply);
     }
-}
+}

contracts/p2pix.sol

@@ -1,18 +1,35 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.9;
 
-import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
-import "@openzeppelin/contracts/access/Ownable.sol";
-import "@openzeppelin/contracts/utils/Counters.sol";
+import "./@openzeppelin/contracts/token/ERC20/IERC20.sol";
+import "./@openzeppelin/contracts/access/Ownable.sol";
+import "./@openzeppelin/contracts/utils/Counters.sol";
 
 contract P2PIX is Ownable {
-
     using Counters for Counters.Counter;
 
-    event DepositAdded(address indexed seller, uint256 depositID, address token, uint256 premium, uint256 amount);
-    event DepositClosed(address indexed seller, uint256 depositID);
-    event DepositWithdrawn(address indexed seller, uint256 depositID, uint256 amount);
-    event LockAdded(address indexed buyer, bytes32 indexed lockID, uint256 depositID, uint256 amount);
+    event DepositAdded(
+        address indexed seller,
+        uint256 depositID,
+        address token,
+        uint256 premium,
+        uint256 amount
+    );
+    event DepositClosed(
+        address indexed seller,
+        uint256 depositID
+    );
+    event DepositWithdrawn(
+        address indexed seller,
+        uint256 depositID,
+        uint256 amount
+    );
+    event LockAdded(
+        address indexed buyer,
+        bytes32 indexed lockID,
+        uint256 depositID,
+        uint256 amount
+    );
     event LockReleased(address indexed buyer, bytes32 lockId);
     event LockReturned(address indexed buyer, bytes32 lockId);
     // Events
@@ -20,20 +37,20 @@ contract P2PIX is Ownable {
 
     struct Deposit {
         address seller;
-        address token;          // ERC20 stable token address
-        uint256 remaining;      // Remaining tokens available
-        uint256 premium;        // Premium paid in ETH for priority
-        bool valid;             // Could be invalidated by the seller
-        string pixTarget;       // The PIX account for the seller receive transactions
+        address token; // ERC20 stable token address
+        uint256 remaining; // Remaining tokens available
+        uint256 premium; // Premium paid in ETH for priority
+        bool valid; // Could be invalidated by the seller
+        string pixTarget; // The PIX account for the seller receive transactions
     }
 
     struct Lock {
         uint256 depositID;
-        address targetAddress;          // Where goes the tokens when validated
-        address relayerAddress;         // Relayer address that facilitated this transaction
-        uint256 relayerPremium;         // Amount to be paid for relayer
-        uint256 amount;                 // Amount to be tranfered via PIX
-        uint256 expirationBlock;        // If not paid at this block will be expired
+        address targetAddress; // Where goes the tokens when validated
+        address relayerAddress; // Relayer address that facilitated this transaction
+        uint256 relayerPremium; // Amount to be paid for relayer
+        uint256 amount; // Amount to be tranfered via PIX
+        uint256 expirationBlock; // If not paid at this block will be expired
     }
 
     Counters.Counter public depositCount;
@@ -50,13 +67,19 @@ contract P2PIX is Ownable {
     mapping(bytes32 => bool) usedTransactions;
 
     modifier onlySeller(uint256 depositID) {
-        require(mapDeposits[depositID].seller == msg.sender, "P2PIX: Only seller could call this function.");
+        require(
+            mapDeposits[depositID].seller == msg.sender,
+            "P2PIX: Only seller could call this function."
+        );
         _;
     }
 
-    constructor (uint256 defaultBlocks, address[] memory validSigners) Ownable() {
+    constructor(
+        uint256 defaultBlocks,
+        address[] memory validSigners
+    ) Ownable() {
         defaultLockBlocks = defaultBlocks;
-        for (uint8 i = 0; i < validSigners.length; i++){
+        for (uint8 i = 0; i < validSigners.length; i++) {
             validBacenSigners[validSigners[i]] = true;
         }
     }
@@ -66,21 +89,42 @@ contract P2PIX is Ownable {
         address token,
         uint256 amount,
         string calldata pixTarget
-    ) public payable returns (uint256 depositID){
+    ) public payable returns (uint256 depositID) {
         depositID = depositCount.current();
-        require(!mapDeposits[depositID].valid, 'P2PIX: Deposit already exist and it is still valid');
+        require(
+            !mapDeposits[depositID].valid,
+            "P2PIX: Deposit already exist and it is still valid"
+        );
         IERC20 t = IERC20(token);
         t.transferFrom(msg.sender, address(this), amount);
-        Deposit memory d = Deposit(msg.sender, token, amount, msg.value, true, pixTarget);
+        Deposit memory d = Deposit(
+            msg.sender,
+            token,
+            amount,
+            msg.value,
+            true,
+            pixTarget
+        );
         mapDeposits[depositID] = d;
         depositCount.increment();
-        emit DepositAdded(msg.sender, depositID, token, msg.value, amount);
+        emit DepositAdded(
+            msg.sender,
+            depositID,
+            token,
+            msg.value,
+            amount
+        );
     }
 
     // Vendedor pode invalidar da ordem de venda impedindo novos locks na mesma (isso não afeta nenhum lock que esteja ativo).
-    function cancelDeposit(uint256 depositID) public onlySeller(depositID) {
+    function cancelDeposit(
+        uint256 depositID
+    ) public onlySeller(depositID) {
         mapDeposits[depositID].valid = false;
-        emit DepositClosed(mapDeposits[depositID].seller, depositID);
+        emit DepositClosed(
+            mapDeposits[depositID].seller,
+            depositID
+        );
     }
 
     // Relayer interaje adicionando um “lock” na ordem de venda.
@@ -96,12 +140,17 @@ contract P2PIX is Ownable {
         uint256 relayerPremium,
         uint256 amount,
         bytes32[] calldata expiredLocks
-    ) public returns (bytes32 lockID){
+    ) public returns (bytes32 lockID) {
         unlockExpired(expiredLocks);
         Deposit storage d = mapDeposits[depositID];
         require(d.valid, "P2PIX: Deposit not valid anymore");
-        require(d.remaining >= amount, "P2PIX: Not enough token remaining on deposit");
-        lockID = keccak256(abi.encodePacked(depositID, amount, targetAddress));
+        require(
+            d.remaining >= amount,
+            "P2PIX: Not enough token remaining on deposit"
+        );
+        lockID = keccak256(
+            abi.encodePacked(depositID, amount, targetAddress)
+        );
         require(
             mapLocks[lockID].expirationBlock < block.number,
             "P2PIX: Another lock with same ID is not expired yet"
@@ -112,11 +161,16 @@ contract P2PIX is Ownable {
             relayerAddress,
             relayerPremium,
             amount,
-            block.number+defaultLockBlocks
+            block.number + defaultLockBlocks
         );
         mapLocks[lockID] = l;
         d.remaining -= amount;
-        emit LockAdded(targetAddress, lockID, depositID, amount);
+        emit LockAdded(
+            targetAddress,
+            lockID,
+            depositID,
+            amount
+        );
     }
 
     // Relayer interage com o smart contract, colocando no calldata o comprovante do PIX realizado.
@@ -130,20 +184,40 @@ contract P2PIX is Ownable {
     ) public {
         // TODO **Prevenir que um Pix não relacionado ao APP seja usado pois tem o mesmo destino
         Lock storage l = mapLocks[lockID];
-        require(l.expirationBlock > block.number && l.amount > 0, "P2PIX: Lock already released or returned");
+        require(
+            l.expirationBlock > block.number && l.amount > 0,
+            "P2PIX: Lock already released or returned"
+        );
         Deposit storage d = mapDeposits[l.depositID];
-        bytes32 message = keccak256(abi.encodePacked(
-            mapDeposits[l.depositID].pixTarget,
-            l.amount,
-            pixTimestamp
-        ));
-        bytes32 messageDigest = keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", message));
-        require(!usedTransactions[message], "P2PIX: Transaction already used to unlock payment");
+        bytes32 message = keccak256(
+            abi.encodePacked(
+                mapDeposits[l.depositID].pixTarget,
+                l.amount,
+                pixTimestamp
+            )
+        );
+        bytes32 messageDigest = keccak256(
+            abi.encodePacked(
+                "\x19Ethereum Signed Message:\n32",
+                message
+            )
+        );
+        require(
+            !usedTransactions[message],
+            "P2PIX: Transaction already used to unlock payment"
+        );
         address signer = ecrecover(messageDigest, v, r, s);
-        require(validBacenSigners[signer], "P2PIX: Signer is not a valid signer");
+        require(
+            validBacenSigners[signer],
+            "P2PIX: Signer is not a valid signer"
+        );
         IERC20 t = IERC20(d.token);
-        t.transfer(l.targetAddress, l.amount-l.relayerPremium);
-        if (l.relayerPremium > 0) t.transfer(l.relayerAddress, l.relayerPremium);
+        t.transfer(
+            l.targetAddress,
+            l.amount - l.relayerPremium
+        );
+        if (l.relayerPremium > 0)
+            t.transfer(l.relayerAddress, l.relayerPremium);
         l.amount = 0;
         l.expirationBlock = 0;
         usedTransactions[message] = true;
@@ -151,11 +225,17 @@ contract P2PIX is Ownable {
     }
 
     // Unlock expired locks
-    function unlockExpired(bytes32[] calldata lockIDs) public {
+    function unlockExpired(
+        bytes32[] calldata lockIDs
+    ) public {
         uint256 locksSize = lockIDs.length;
-        for (uint16 i = 0; i < locksSize; i++){
+        for (uint16 i = 0; i < locksSize; i++) {
             Lock storage l = mapLocks[lockIDs[i]];
-            require(l.expirationBlock < block.number && l.amount > 0, "P2PIX: Lock not expired or already released");
+            require(
+                l.expirationBlock < block.number &&
+                    l.amount > 0,
+                "P2PIX: Lock not expired or already released"
+            );
             mapDeposits[l.depositID].remaining += l.amount;
             l.amount = 0;
             emit LockReturned(l.targetAddress, lockIDs[i]);
@@ -184,5 +264,4 @@ contract P2PIX is Ownable {
         payable(msg.sender).transfer(balance);
         emit PremiumsWithdrawn(msg.sender, balance);
     }
-
-}
+}

deploys/localhost.json

@@ -3,6 +3,6 @@
     "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
     "0x70997970C51812dc3A010C7d01b50e0d17dc79C8"
   ],
-  "p2pix": "0x5FbDB2315678afecb367f032d93F642f64180aa3",
-  "token": "0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512"
+  "p2pix": "0x294003F602c321627152c6b7DED3EAb5bEa853Ee",
+  "token": "0x5BdEa33E2D14E3D4C66f9A7bbbc38Cd785D0C592"
 }

hardhat.config.js

@@ -1,12 +0,0 @@
-require("@nomiclabs/hardhat-waffle");
-
-/** @type import('hardhat/config').HardhatUserConfig */
-module.exports = {
-  solidity: "0.8.17",
-  networks: {
-    hardhat: {
-      blockGasLimit: 30000000,
-      //hardfork: 'london'
-    }
-  }
-};

hardhat.config.ts

@@ -0,0 +1,123 @@
+import "@nomicfoundation/hardhat-chai-matchers";
+import "@nomicfoundation/hardhat-toolbox";
+import { config as dotenvConfig } from "dotenv";
+import { HardhatUserConfig } from "hardhat/config";
+import { NetworkUserConfig } from "hardhat/types";
+import { resolve } from "path";
+
+dotenvConfig({ path: resolve(__dirname, "./.env") });
+
+const mnemonic: string | undefined = process.env.MNEMONIC;
+if (!mnemonic) {
+  throw new Error("Please set your MNEMONIC in a .env file");
+}
+
+const infuraApiKey: string | undefined =
+  process.env.INFURA_API_KEY;
+if (!infuraApiKey) {
+  throw new Error(
+    "Please set your INFURA_API_KEY in a .env file",
+  );
+}
+
+const chainIds = {
+  // "{INSERT_NAME}": {INSERT_ID},
+  hardhat: 31337,
+  mainnet: 1,
+  sepolia: 11155111,
+};
+
+function getChainConfig(
+  chain: keyof typeof chainIds,
+): NetworkUserConfig {
+  let jsonRpcUrl: string;
+  switch (chain) {
+    // case "{INSERT_NAME}":
+    // jsonRpcUrl = "{INSERT_URL}";
+    // break;
+    default:
+      jsonRpcUrl =
+        "https://" + chain + ".infura.io/v3/" + infuraApiKey;
+  }
+  return {
+    // Comment out for default hardhat account settings
+    accounts: {
+      count: 10,
+      mnemonic,
+      path: "m/44'/60'/0'/0",
+    },
+    chainId: chainIds[chain],
+    url: jsonRpcUrl,
+  };
+}
+
+const config: HardhatUserConfig = {
+  defaultNetwork: "hardhat",
+  etherscan: {
+    apiKey: {
+      mainnet: process.env.ETHERSCAN_API_KEY || "",
+      rinkeby: process.env.ETHERSCAN_API_KEY || "",
+    },
+    // customChains: [
+    //   {
+    //     // network: {INSERT_NAME},
+    //     // chainId: {INSERT_ID},
+    //     // urls: {
+    //       // apiURL:
+    //         // "{INSERT_URL}",
+    //       // browserURL: "{INSERT_URL}",
+    //     // },
+    //   },
+    // ],
+  },
+  gasReporter: {
+    enabled: !!(
+      process.env.REPORT_GAS &&
+      process.env.REPORT_GAS != "false"
+    ),
+    showTimeSpent: true,
+    showMethodSig: true,
+    token: "ONE",
+    currency: "USD",
+    // gasPriceApi: process.env.GASPRICE_API_ENDPOINT,
+    coinmarketcap: process.env.COINMARKETCAP_API_KEY,
+    excludeContracts: [],
+    src: "./contracts",
+  },
+  networks: {
+    hardhat: {
+      blockGasLimit: 30000000,
+      accounts: {
+        mnemonic,
+      },
+      chainId: chainIds.hardhat,
+    },
+    // network: getChainConfig("{INSERT_NAME}"),
+    mainnet: getChainConfig("mainnet"),
+    sepolia: getChainConfig("sepolia"),
+  },
+  paths: {
+    artifacts: "./artifacts",
+    cache: "./cache",
+    sources: "./contracts",
+    tests: "./test",
+  },
+  solidity: {
+    version: "0.8.9",
+    settings: {
+      metadata: {
+        bytecodeHash: "none",
+      },
+      optimizer: {
+        enabled: true,
+        runs: 800,
+      },
+    },
+  },
+  typechain: {
+    outDir: "src/types",
+    target: "ethers-v5",
+  },
+};
+
+export default config;

package.json

@@ -2,26 +2,84 @@
   "name": "p2pix-smart-contracts",
   "version": "1.0.0",
   "description": "Repository for P2Pix EVM contracts to be imported by the project.",
-  "main": "index.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/doiim/p2pix-smart-contracts.git"
-  },
+  "homepage": "https://github.com/doiim/p2pix-smart-contracts#readme",
   "author": "Filipe Soccol (doiim)",
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/doiim/p2pix-smart-contracts/issues"
   },
-  "homepage": "https://github.com/doiim/p2pix-smart-contracts#readme",
-  "devDependencies": {
-    "@nomiclabs/hardhat-waffle": "^2.0.3",
-    "chai": "^4.3.6",
-    "hardhat": "^2.12.0"
+  "scripts": {
+    "clean": "shx rm -rf ./artifacts ./cache ./coverage ./src/types ./coverage.json && yarn typechain",
+    "commit": "git-cz",
+    "compile": "cross-env TS_NODE_TRANSPILE_ONLY=true hardhat compile",
+    "typechain": "cross-env TS_NODE_TRANSPILE_ONLY=true hardhat typechain",
+    "test": "hardhat test",
+    "deploy1:localhost": "hardhat run scripts/1-deploy-p2pix.ts --network localhost",
+    "deploy2:localhost": "hardhat run scripts/2-deploy-mockToken.ts --network localhost",
+    "coverage": "hardhat coverage --solcoverjs ./.solcover.js --temp artifacts --testfiles \"test/**/*.ts\" && yarn typechain",
+    "lint": "yarn lint:sol && yarn lint:ts && yarn prettier:check",
+    "lint:sol": "solhint --config ./.solhint.json --max-warnings 0 \"contracts/**/*.sol\"",
+    "lint:ts": "eslint --config ./.eslintrc.yaml --ignore-path ./.eslintignore --ext .js,.ts .",
+    "_postinstall": "husky install",
+    "postpublish": "pinst --enable",
+    "prepublishOnly": "pinst --disable",
+    "prettier": "prettier --config ./.prettierrc.yaml --write \"**/*.{js,json,md,sol,ts,yaml,yml}\"",
+    "prettier:check": "prettier --check --config ./.prettierrc.yaml \"**/*.{js,json,md,sol,ts,yaml,yml}\""
   },
-  "dependencies": {
-    "@openzeppelin/contracts": "^4.7.3"
+  "devDependencies": {
+    "@commitlint/cli": "^17.2.0",
+    "@commitlint/config-conventional": "^17.2.0",
+    "@ethersproject/abi": "^5.7.0",
+    "@ethersproject/abstract-signer": "^5.7.0",
+    "@ethersproject/bignumber": "^5.7.0",
+    "@ethersproject/bytes": "^5.7.0",
+    "@ethersproject/providers": "^5.7.2",
+    "@nomicfoundation/hardhat-chai-matchers": "^1.0.4",
+    "@nomicfoundation/hardhat-network-helpers": "1.0.6",
+    "@nomicfoundation/hardhat-toolbox": "^2.0.0",
+    "@nomiclabs/hardhat-ethers": "^2.2.1",
+    "@nomiclabs/hardhat-etherscan": "^3.1.2",
+    "@trivago/prettier-plugin-sort-imports": "^3.4.0",
+    "@typechain/ethers-v5": "^10.1.1",
+    "@typechain/hardhat": "^6.1.4",
+    "@types/chai": "^4.3.3",
+    "@types/fs-extra": "^9.0.13",
+    "@types/mocha": "^9.1.1",
+    "@types/node": "^18.11.9",
+    "@typescript-eslint/eslint-plugin": "^5.42.0",
+    "@typescript-eslint/parser": "^5.42.0",
+    "chai": "^4.3.6",
+    "commitizen": "^4.2.5",
+    "cross-env": "^7.0.3",
+    "cz-conventional-changelog": "^3.3.0",
+    "dotenv": "^16.0.3",
+    "eslint": "^8.26.0",
+    "eslint-config-prettier": "^8.5.0",
+    "ethers": "^5.7.2",
+    "fs-extra": "^10.1.0",
+    "hardhat": "^2.12.2",
+    "hardhat-gas-reporter": "^1.0.9",
+    "husky": "^8.0.1",
+    "lint-staged": "^13.0.3",
+    "lodash": "^4.17.21",
+    "mocha": "^10.1.0",
+    "pinst": "^3.0.0",
+    "prettier": "^2.7.1",
+    "prettier-plugin-solidity": "^1.0.0-rc.1",
+    "shx": "^0.3.4",
+    "solhint": "^3.3.7",
+    "solhint-plugin-prettier": "^0.0.5",
+    "solidity-coverage": "^0.8.2",
+    "ts-generator": "^0.1.1",
+    "ts-node": "^10.9.1",
+    "typechain": "^8.1.1",
+    "typescript": "^4.8.4"
+  },
+  "files": [
+    "/contracts"
+  ],
+  "packageManager": "yarn@3.2.1",
+  "publishConfig": {
+    "access": "public"
   }
 }

scripts/1-deploy-p2pix.js

@@ -1,31 +0,0 @@
-const fs = require('fs');
-const { network } = require("hardhat");
-
-async function main() {
-
-    let deploysJson = {}
-
-    try {
-        const data = fs.readFileSync(`./deploys/${network.name}.json`, {encoding:"utf-8"});
-        deploysJson = JSON.parse(data);
-    } catch (err) {
-        console.log('Error loading Master address: ', err);
-        process.exit(1);
-    }
-
-    const P2PIX = await ethers.getContractFactory("P2PIX");
-    const p2pix = await P2PIX.deploy(2, deploysJson.signers);
-    await p2pix.deployed();
-
-    deploysJson.p2pix = p2pix.address
-    console.log("🚀 P2PIX Deployed:", p2pix.address);
-
-    fs.writeFileSync(`./deploys/${network.name}.json`, JSON.stringify(deploysJson, undefined, 2));
-}
-  
-main()
-.then(() => process.exit(0))
-.catch((error) => {
-    console.error(error);
-    process.exit(1);
-});

scripts/1-deploy-p2pix.ts

@@ -0,0 +1,55 @@
+import "@nomiclabs/hardhat-ethers";
+import "@nomiclabs/hardhat-etherscan";
+import * as fs from "fs";
+import { ethers, network } from "hardhat";
+// import hre from "hardhat";
+
+interface Deploys {
+  signers: string[];
+  p2pix: string;
+  token: string;
+}
+
+let deploysJson: Deploys;
+
+const main = async () => {
+  try {
+    const data = fs.readFileSync(
+      `./deploys/${network.name}.json`,
+      { encoding: "utf-8" },
+    );
+    deploysJson = JSON.parse(data);
+  } catch (err) {
+    console.log("Error loading Master address: ", err);
+    process.exit(1);
+  }
+
+  const [deployer] = await ethers.getSigners();
+  console.log(`Deploying contracts with ${deployer.address}`);
+
+  const P2PIX = await ethers.getContractFactory("P2PIX");
+  const p2pix = await P2PIX.deploy(2, deploysJson.signers);
+  await p2pix.deployed();
+
+  deploysJson.p2pix = p2pix.address;
+  console.log("🚀 P2PIX Deployed:", p2pix.address);
+
+  fs.writeFileSync(
+    `./deploys/${network.name}.json`,
+    JSON.stringify(deploysJson, undefined, 2),
+  );
+
+  /* UNCOMMENT WHEN DEPLOYING TO MAINNET */
+  //verify
+  // await hre.run("verify:verify", {
+  //   address: p2pix.address,
+  //   constructorArguments: [2, deploysJson.signers],
+  // });
+};
+
+main()
+  .then(() => process.exit(0))
+  .catch(error => {
+    console.log(error);
+    process.exit(1);
+  });

scripts/2-deploy-mockToken.js

@@ -1,31 +0,0 @@
-const fs = require('fs');
-const { network } = require("hardhat");
-
-async function main() {
-
-    let deploysJson = {}
-
-    try {
-        const data = fs.readFileSync(`./deploys/${network.name}.json`, {encoding:"utf-8"});
-        deploysJson = JSON.parse(data);
-    } catch (err) {
-        console.log('Error loading Master address: ', err);
-        process.exit(1);
-    }
-
-    const ERC20Factory = await ethers.getContractFactory("MockToken");
-    const erc20 = await ERC20Factory.deploy(ethers.utils.parseEther('20000000', 'wei')); 
-    await erc20.deployed();
-
-    deploysJson.token = erc20.address
-    console.log("🚀 Mock Token Deployed:", erc20.address);
-
-    fs.writeFileSync(`./deploys/${network.name}.json`, JSON.stringify(deploysJson, undefined, 2));
-}
-  
-main()
-.then(() => process.exit(0))
-.catch((error) => {
-    console.error(error);
-    process.exit(1);
-});

scripts/2-deploy-mockToken.ts

@@ -0,0 +1,59 @@
+import "@nomiclabs/hardhat-ethers";
+import "@nomiclabs/hardhat-etherscan";
+import { BigNumber } from "ethers";
+import * as fs from "fs";
+import { ethers, network } from "hardhat";
+// import hre from "hardhat";
+
+interface Deploys {
+  signers: string[];
+  p2pix: string;
+  token: string;
+}
+
+let deploysJson: Deploys;
+const supply: BigNumber = ethers.utils.parseEther("20000000");
+
+const main = async () => {
+  try {
+    const data = fs.readFileSync(
+      `./deploys/${network.name}.json`,
+      { encoding: "utf-8" },
+    );
+    deploysJson = JSON.parse(data);
+  } catch (err) {
+    console.log("Error loading Master address: ", err);
+    process.exit(1);
+  }
+
+  const [deployer] = await ethers.getSigners();
+  console.log(`Deploying contracts with ${deployer.address}`);
+
+  const ERC20Factory = await ethers.getContractFactory(
+    "MockToken",
+  );
+  const erc20 = await ERC20Factory.deploy(supply);
+  await erc20.deployed();
+
+  deploysJson.token = erc20.address;
+  console.log("🚀 Mock Token Deployed:", erc20.address);
+
+  fs.writeFileSync(
+    `./deploys/${network.name}.json`,
+    JSON.stringify(deploysJson, undefined, 2),
+  );
+
+  /* UNCOMMENT WHEN DEPLOYING TO MAINNET */
+  //verify
+  // await hre.run("verify:verify", {
+  //   address: erc20.address,
+  //   constructorArguments: supply,
+  // });
+};
+
+main()
+  .then(() => process.exit(0))
+  .catch(error => {
+    console.log(error);
+    process.exit(1);
+  });

src/types/@openzeppelin/contracts/access/Ownable.ts

@@ -0,0 +1,176 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+  PromiseOrValue,
+} from "../../../common";
+
+export interface OwnableInterface extends utils.Interface {
+  functions: {
+    "owner()": FunctionFragment;
+    "renounceOwnership()": FunctionFragment;
+    "transferOwnership(address)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic: "owner" | "renounceOwnership" | "transferOwnership"
+  ): FunctionFragment;
+
+  encodeFunctionData(functionFragment: "owner", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "renounceOwnership",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferOwnership",
+    values: [PromiseOrValue<string>]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "owner", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "renounceOwnership",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "transferOwnership",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "OwnershipTransferred(address,address)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "OwnershipTransferred"): EventFragment;
+}
+
+export interface OwnershipTransferredEventObject {
+  previousOwner: string;
+  newOwner: string;
+}
+export type OwnershipTransferredEvent = TypedEvent<
+  [string, string],
+  OwnershipTransferredEventObject
+>;
+
+export type OwnershipTransferredEventFilter =
+  TypedEventFilter<OwnershipTransferredEvent>;
+
+export interface Ownable extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: OwnableInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    owner(overrides?: CallOverrides): Promise<[string]>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    transferOwnership(
+      newOwner: PromiseOrValue<string>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+  };
+
+  owner(overrides?: CallOverrides): Promise<string>;
+
+  renounceOwnership(
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  transferOwnership(
+    newOwner: PromiseOrValue<string>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    owner(overrides?: CallOverrides): Promise<string>;
+
+    renounceOwnership(overrides?: CallOverrides): Promise<void>;
+
+    transferOwnership(
+      newOwner: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<void>;
+  };
+
+  filters: {
+    "OwnershipTransferred(address,address)"(
+      previousOwner?: PromiseOrValue<string> | null,
+      newOwner?: PromiseOrValue<string> | null
+    ): OwnershipTransferredEventFilter;
+    OwnershipTransferred(
+      previousOwner?: PromiseOrValue<string> | null,
+      newOwner?: PromiseOrValue<string> | null
+    ): OwnershipTransferredEventFilter;
+  };
+
+  estimateGas: {
+    owner(overrides?: CallOverrides): Promise<BigNumber>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    transferOwnership(
+      newOwner: PromiseOrValue<string>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    owner(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    transferOwnership(
+      newOwner: PromiseOrValue<string>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/types/@openzeppelin/contracts/access/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export type { Ownable } from "./Ownable";

src/types/@openzeppelin/contracts/index.ts

@@ -0,0 +1,7 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type * as access from "./access";
+export type { access };
+import type * as token from "./token";
+export type { token };

src/types/@openzeppelin/contracts/token/ERC20/ERC20.ts

@@ -0,0 +1,464 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+  PromiseOrValue,
+} from "../../../../common";
+
+export interface ERC20Interface extends utils.Interface {
+  functions: {
+    "allowance(address,address)": FunctionFragment;
+    "approve(address,uint256)": FunctionFragment;
+    "balanceOf(address)": FunctionFragment;
+    "decimals()": FunctionFragment;
+    "decreaseAllowance(address,uint256)": FunctionFragment;
+    "increaseAllowance(address,uint256)": FunctionFragment;
+    "name()": FunctionFragment;
+    "symbol()": FunctionFragment;
+    "totalSupply()": FunctionFragment;
+    "transfer(address,uint256)": FunctionFragment;
+    "transferFrom(address,address,uint256)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "allowance"
+      | "approve"
+      | "balanceOf"
+      | "decimals"
+      | "decreaseAllowance"
+      | "increaseAllowance"
+      | "name"
+      | "symbol"
+      | "totalSupply"
+      | "transfer"
+      | "transferFrom"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "allowance",
+    values: [PromiseOrValue<string>, PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "approve",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "balanceOf",
+    values: [PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(functionFragment: "decimals", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "decreaseAllowance",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "increaseAllowance",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(functionFragment: "name", values?: undefined): string;
+  encodeFunctionData(functionFragment: "symbol", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "totalSupply",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transfer",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferFrom",
+    values: [
+      PromiseOrValue<string>,
+      PromiseOrValue<string>,
+      PromiseOrValue<BigNumberish>
+    ]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "allowance", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "approve", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "balanceOf", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "decimals", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "decreaseAllowance",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "increaseAllowance",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "name", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "symbol", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "totalSupply",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "transfer", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "transferFrom",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "Approval(address,address,uint256)": EventFragment;
+    "Transfer(address,address,uint256)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "Approval"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "Transfer"): EventFragment;
+}
+
+export interface ApprovalEventObject {
+  owner: string;
+  spender: string;
+  value: BigNumber;
+}
+export type ApprovalEvent = TypedEvent<
+  [string, string, BigNumber],
+  ApprovalEventObject
+>;
+
+export type ApprovalEventFilter = TypedEventFilter<ApprovalEvent>;
+
+export interface TransferEventObject {
+  from: string;
+  to: string;
+  value: BigNumber;
+}
+export type TransferEvent = TypedEvent<
+  [string, string, BigNumber],
+  TransferEventObject
+>;
+
+export type TransferEventFilter = TypedEventFilter<TransferEvent>;
+
+export interface ERC20 extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: ERC20Interface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    decimals(overrides?: CallOverrides): Promise<[number]>;
+
+    decreaseAllowance(
+      spender: PromiseOrValue<string>,
+      subtractedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    increaseAllowance(
+      spender: PromiseOrValue<string>,
+      addedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    name(overrides?: CallOverrides): Promise<[string]>;
+
+    symbol(overrides?: CallOverrides): Promise<[string]>;
+
+    totalSupply(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+  };
+
+  allowance(
+    owner: PromiseOrValue<string>,
+    spender: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  approve(
+    spender: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  balanceOf(
+    account: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  decimals(overrides?: CallOverrides): Promise<number>;
+
+  decreaseAllowance(
+    spender: PromiseOrValue<string>,
+    subtractedValue: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  increaseAllowance(
+    spender: PromiseOrValue<string>,
+    addedValue: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  name(overrides?: CallOverrides): Promise<string>;
+
+  symbol(overrides?: CallOverrides): Promise<string>;
+
+  totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+  transfer(
+    to: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  transferFrom(
+    from: PromiseOrValue<string>,
+    to: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    decimals(overrides?: CallOverrides): Promise<number>;
+
+    decreaseAllowance(
+      spender: PromiseOrValue<string>,
+      subtractedValue: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    increaseAllowance(
+      spender: PromiseOrValue<string>,
+      addedValue: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    name(overrides?: CallOverrides): Promise<string>;
+
+    symbol(overrides?: CallOverrides): Promise<string>;
+
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+  };
+
+  filters: {
+    "Approval(address,address,uint256)"(
+      owner?: PromiseOrValue<string> | null,
+      spender?: PromiseOrValue<string> | null,
+      value?: null
+    ): ApprovalEventFilter;
+    Approval(
+      owner?: PromiseOrValue<string> | null,
+      spender?: PromiseOrValue<string> | null,
+      value?: null
+    ): ApprovalEventFilter;
+
+    "Transfer(address,address,uint256)"(
+      from?: PromiseOrValue<string> | null,
+      to?: PromiseOrValue<string> | null,
+      value?: null
+    ): TransferEventFilter;
+    Transfer(
+      from?: PromiseOrValue<string> | null,
+      to?: PromiseOrValue<string> | null,
+      value?: null
+    ): TransferEventFilter;
+  };
+
+  estimateGas: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    decimals(overrides?: CallOverrides): Promise<BigNumber>;
+
+    decreaseAllowance(
+      spender: PromiseOrValue<string>,
+      subtractedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    increaseAllowance(
+      spender: PromiseOrValue<string>,
+      addedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    name(overrides?: CallOverrides): Promise<BigNumber>;
+
+    symbol(overrides?: CallOverrides): Promise<BigNumber>;
+
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    decimals(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    decreaseAllowance(
+      spender: PromiseOrValue<string>,
+      subtractedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    increaseAllowance(
+      spender: PromiseOrValue<string>,
+      addedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    name(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    symbol(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    totalSupply(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/types/@openzeppelin/contracts/token/ERC20/IERC20.ts

@@ -0,0 +1,342 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+  PromiseOrValue,
+} from "../../../../common";
+
+export interface IERC20Interface extends utils.Interface {
+  functions: {
+    "allowance(address,address)": FunctionFragment;
+    "approve(address,uint256)": FunctionFragment;
+    "balanceOf(address)": FunctionFragment;
+    "totalSupply()": FunctionFragment;
+    "transfer(address,uint256)": FunctionFragment;
+    "transferFrom(address,address,uint256)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "allowance"
+      | "approve"
+      | "balanceOf"
+      | "totalSupply"
+      | "transfer"
+      | "transferFrom"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "allowance",
+    values: [PromiseOrValue<string>, PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "approve",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "balanceOf",
+    values: [PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "totalSupply",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transfer",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferFrom",
+    values: [
+      PromiseOrValue<string>,
+      PromiseOrValue<string>,
+      PromiseOrValue<BigNumberish>
+    ]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "allowance", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "approve", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "balanceOf", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "totalSupply",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "transfer", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "transferFrom",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "Approval(address,address,uint256)": EventFragment;
+    "Transfer(address,address,uint256)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "Approval"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "Transfer"): EventFragment;
+}
+
+export interface ApprovalEventObject {
+  owner: string;
+  spender: string;
+  value: BigNumber;
+}
+export type ApprovalEvent = TypedEvent<
+  [string, string, BigNumber],
+  ApprovalEventObject
+>;
+
+export type ApprovalEventFilter = TypedEventFilter<ApprovalEvent>;
+
+export interface TransferEventObject {
+  from: string;
+  to: string;
+  value: BigNumber;
+}
+export type TransferEvent = TypedEvent<
+  [string, string, BigNumber],
+  TransferEventObject
+>;
+
+export type TransferEventFilter = TypedEventFilter<TransferEvent>;
+
+export interface IERC20 extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: IERC20Interface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    totalSupply(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+  };
+
+  allowance(
+    owner: PromiseOrValue<string>,
+    spender: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  approve(
+    spender: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  balanceOf(
+    account: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+  transfer(
+    to: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  transferFrom(
+    from: PromiseOrValue<string>,
+    to: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+  };
+
+  filters: {
+    "Approval(address,address,uint256)"(
+      owner?: PromiseOrValue<string> | null,
+      spender?: PromiseOrValue<string> | null,
+      value?: null
+    ): ApprovalEventFilter;
+    Approval(
+      owner?: PromiseOrValue<string> | null,
+      spender?: PromiseOrValue<string> | null,
+      value?: null
+    ): ApprovalEventFilter;
+
+    "Transfer(address,address,uint256)"(
+      from?: PromiseOrValue<string> | null,
+      to?: PromiseOrValue<string> | null,
+      value?: null
+    ): TransferEventFilter;
+    Transfer(
+      from?: PromiseOrValue<string> | null,
+      to?: PromiseOrValue<string> | null,
+      value?: null
+    ): TransferEventFilter;
+  };
+
+  estimateGas: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    totalSupply(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/types/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.ts

@@ -0,0 +1,384 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+  PromiseOrValue,
+} from "../../../../../common";
+
+export interface IERC20MetadataInterface extends utils.Interface {
+  functions: {
+    "allowance(address,address)": FunctionFragment;
+    "approve(address,uint256)": FunctionFragment;
+    "balanceOf(address)": FunctionFragment;
+    "decimals()": FunctionFragment;
+    "name()": FunctionFragment;
+    "symbol()": FunctionFragment;
+    "totalSupply()": FunctionFragment;
+    "transfer(address,uint256)": FunctionFragment;
+    "transferFrom(address,address,uint256)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "allowance"
+      | "approve"
+      | "balanceOf"
+      | "decimals"
+      | "name"
+      | "symbol"
+      | "totalSupply"
+      | "transfer"
+      | "transferFrom"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "allowance",
+    values: [PromiseOrValue<string>, PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "approve",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "balanceOf",
+    values: [PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(functionFragment: "decimals", values?: undefined): string;
+  encodeFunctionData(functionFragment: "name", values?: undefined): string;
+  encodeFunctionData(functionFragment: "symbol", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "totalSupply",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transfer",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferFrom",
+    values: [
+      PromiseOrValue<string>,
+      PromiseOrValue<string>,
+      PromiseOrValue<BigNumberish>
+    ]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "allowance", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "approve", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "balanceOf", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "decimals", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "name", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "symbol", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "totalSupply",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "transfer", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "transferFrom",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "Approval(address,address,uint256)": EventFragment;
+    "Transfer(address,address,uint256)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "Approval"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "Transfer"): EventFragment;
+}
+
+export interface ApprovalEventObject {
+  owner: string;
+  spender: string;
+  value: BigNumber;
+}
+export type ApprovalEvent = TypedEvent<
+  [string, string, BigNumber],
+  ApprovalEventObject
+>;
+
+export type ApprovalEventFilter = TypedEventFilter<ApprovalEvent>;
+
+export interface TransferEventObject {
+  from: string;
+  to: string;
+  value: BigNumber;
+}
+export type TransferEvent = TypedEvent<
+  [string, string, BigNumber],
+  TransferEventObject
+>;
+
+export type TransferEventFilter = TypedEventFilter<TransferEvent>;
+
+export interface IERC20Metadata extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: IERC20MetadataInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    decimals(overrides?: CallOverrides): Promise<[number]>;
+
+    name(overrides?: CallOverrides): Promise<[string]>;
+
+    symbol(overrides?: CallOverrides): Promise<[string]>;
+
+    totalSupply(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+  };
+
+  allowance(
+    owner: PromiseOrValue<string>,
+    spender: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  approve(
+    spender: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  balanceOf(
+    account: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  decimals(overrides?: CallOverrides): Promise<number>;
+
+  name(overrides?: CallOverrides): Promise<string>;
+
+  symbol(overrides?: CallOverrides): Promise<string>;
+
+  totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+  transfer(
+    to: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  transferFrom(
+    from: PromiseOrValue<string>,
+    to: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    decimals(overrides?: CallOverrides): Promise<number>;
+
+    name(overrides?: CallOverrides): Promise<string>;
+
+    symbol(overrides?: CallOverrides): Promise<string>;
+
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+  };
+
+  filters: {
+    "Approval(address,address,uint256)"(
+      owner?: PromiseOrValue<string> | null,
+      spender?: PromiseOrValue<string> | null,
+      value?: null
+    ): ApprovalEventFilter;
+    Approval(
+      owner?: PromiseOrValue<string> | null,
+      spender?: PromiseOrValue<string> | null,
+      value?: null
+    ): ApprovalEventFilter;
+
+    "Transfer(address,address,uint256)"(
+      from?: PromiseOrValue<string> | null,
+      to?: PromiseOrValue<string> | null,
+      value?: null
+    ): TransferEventFilter;
+    Transfer(
+      from?: PromiseOrValue<string> | null,
+      to?: PromiseOrValue<string> | null,
+      value?: null
+    ): TransferEventFilter;
+  };
+
+  estimateGas: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    decimals(overrides?: CallOverrides): Promise<BigNumber>;
+
+    name(overrides?: CallOverrides): Promise<BigNumber>;
+
+    symbol(overrides?: CallOverrides): Promise<BigNumber>;
+
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    decimals(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    name(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    symbol(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    totalSupply(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/types/@openzeppelin/contracts/token/ERC20/extensions/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export type { IERC20Metadata } from "./IERC20Metadata";

src/types/@openzeppelin/contracts/token/ERC20/index.ts

@@ -0,0 +1,7 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type * as extensions from "./extensions";
+export type { extensions };
+export type { ERC20 } from "./ERC20";
+export type { IERC20 } from "./IERC20";

src/types/@openzeppelin/contracts/token/index.ts

@@ -0,0 +1,5 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type * as erc20 from "./ERC20";
+export type { erc20 };

src/types/@openzeppelin/index.ts

@@ -0,0 +1,5 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type * as contracts from "./contracts";
+export type { contracts };

src/types/common.ts

@@ -0,0 +1,46 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type { Listener } from "@ethersproject/providers";
+import type { Event, EventFilter } from "ethers";
+
+export interface TypedEvent<
+  TArgsArray extends Array<any> = any,
+  TArgsObject = any
+> extends Event {
+  args: TArgsArray & TArgsObject;
+}
+
+export interface TypedEventFilter<_TEvent extends TypedEvent>
+  extends EventFilter {}
+
+export interface TypedListener<TEvent extends TypedEvent> {
+  (...listenerArg: [...__TypechainArgsArray<TEvent>, TEvent]): void;
+}
+
+type __TypechainArgsArray<T> = T extends TypedEvent<infer U> ? U : never;
+
+export interface OnEvent<TRes> {
+  <TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>,
+    listener: TypedListener<TEvent>
+  ): TRes;
+  (eventName: string, listener: Listener): TRes;
+}
+
+export type MinEthersFactory<C, ARGS> = {
+  deploy(...a: ARGS[]): Promise<C>;
+};
+
+export type GetContractTypeFromFactory<F> = F extends MinEthersFactory<
+  infer C,
+  any
+>
+  ? C
+  : never;
+
+export type GetARGsTypeFromFactory<F> = F extends MinEthersFactory<any, any>
+  ? Parameters<F["deploy"]>
+  : never;
+
+export type PromiseOrValue<T> = T | Promise<T>;

src/types/factories/@openzeppelin/contracts/access/Ownable__factory.ts

@@ -0,0 +1,78 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type {
+  Ownable,
+  OwnableInterface,
+} from "../../../../@openzeppelin/contracts/access/Ownable";
+
+const _abi = [
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "previousOwner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "OwnershipTransferred",
+    type: "event",
+  },
+  {
+    inputs: [],
+    name: "owner",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "renounceOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "transferOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+];
+
+export class Ownable__factory {
+  static readonly abi = _abi;
+  static createInterface(): OwnableInterface {
+    return new utils.Interface(_abi) as OwnableInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): Ownable {
+    return new Contract(address, _abi, signerOrProvider) as Ownable;
+  }
+}

src/types/factories/@openzeppelin/contracts/access/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export { Ownable__factory } from "./Ownable__factory";

src/types/factories/@openzeppelin/contracts/index.ts

@@ -0,0 +1,5 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export * as access from "./access";
+export * as token from "./token";

src/types/factories/@openzeppelin/contracts/token/ERC20/IERC20__factory.ts

@@ -0,0 +1,206 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type {
+  IERC20,
+  IERC20Interface,
+} from "../../../../../@openzeppelin/contracts/token/ERC20/IERC20";
+
+const _abi = [
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "Approval",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "from",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "Transfer",
+    type: "event",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+    ],
+    name: "allowance",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+    ],
+    name: "approve",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "account",
+        type: "address",
+      },
+    ],
+    name: "balanceOf",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "totalSupply",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+    ],
+    name: "transfer",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "from",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+    ],
+    name: "transferFrom",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+];
+
+export class IERC20__factory {
+  static readonly abi = _abi;
+  static createInterface(): IERC20Interface {
+    return new utils.Interface(_abi) as IERC20Interface;
+  }
+  static connect(address: string, signerOrProvider: Signer | Provider): IERC20 {
+    return new Contract(address, _abi, signerOrProvider) as IERC20;
+  }
+}

src/types/factories/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata__factory.ts

@@ -0,0 +1,248 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type {
+  IERC20Metadata,
+  IERC20MetadataInterface,
+} from "../../../../../../@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata";
+
+const _abi = [
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "Approval",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "from",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "Transfer",
+    type: "event",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+    ],
+    name: "allowance",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+    ],
+    name: "approve",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "account",
+        type: "address",
+      },
+    ],
+    name: "balanceOf",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "decimals",
+    outputs: [
+      {
+        internalType: "uint8",
+        name: "",
+        type: "uint8",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "name",
+    outputs: [
+      {
+        internalType: "string",
+        name: "",
+        type: "string",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "symbol",
+    outputs: [
+      {
+        internalType: "string",
+        name: "",
+        type: "string",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "totalSupply",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+    ],
+    name: "transfer",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "from",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+    ],
+    name: "transferFrom",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+];
+
+export class IERC20Metadata__factory {
+  static readonly abi = _abi;
+  static createInterface(): IERC20MetadataInterface {
+    return new utils.Interface(_abi) as IERC20MetadataInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): IERC20Metadata {
+    return new Contract(address, _abi, signerOrProvider) as IERC20Metadata;
+  }
+}

src/types/factories/@openzeppelin/contracts/token/ERC20/extensions/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export { IERC20Metadata__factory } from "./IERC20Metadata__factory";

src/types/factories/@openzeppelin/contracts/token/ERC20/index.ts

@@ -0,0 +1,6 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export * as extensions from "./extensions";
+export { ERC20__factory } from "./ERC20__factory";
+export { IERC20__factory } from "./IERC20__factory";

src/types/factories/@openzeppelin/contracts/token/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export * as erc20 from "./ERC20";

src/types/factories/@openzeppelin/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export * as contracts from "./contracts";

src/types/factories/index.ts

@@ -0,0 +1,6 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export * as openzeppelin from "./@openzeppelin";
+export * as mockTokenSol from "./mockToken.sol";
+export * as p2PixSol from "./p2pix.sol";

src/types/factories/mockToken.sol/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export { MockToken__factory } from "./MockToken__factory";

src/types/factories/p2pix.sol/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export { P2PIX__factory } from "./P2PIX__factory";

src/types/hardhat.d.ts

@@ -0,0 +1,87 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { ethers } from "ethers";
+import {
+  FactoryOptions,
+  HardhatEthersHelpers as HardhatEthersHelpersBase,
+} from "@nomiclabs/hardhat-ethers/types";
+
+import * as Contracts from ".";
+
+declare module "hardhat/types/runtime" {
+  interface HardhatEthersHelpers extends HardhatEthersHelpersBase {
+    getContractFactory(
+      name: "Ownable",
+      signerOrOptions?: ethers.Signer | FactoryOptions
+    ): Promise<Contracts.Ownable__factory>;
+    getContractFactory(
+      name: "ERC20",
+      signerOrOptions?: ethers.Signer | FactoryOptions
+    ): Promise<Contracts.ERC20__factory>;
+    getContractFactory(
+      name: "IERC20Metadata",
+      signerOrOptions?: ethers.Signer | FactoryOptions
+    ): Promise<Contracts.IERC20Metadata__factory>;
+    getContractFactory(
+      name: "IERC20",
+      signerOrOptions?: ethers.Signer | FactoryOptions
+    ): Promise<Contracts.IERC20__factory>;
+    getContractFactory(
+      name: "MockToken",
+      signerOrOptions?: ethers.Signer | FactoryOptions
+    ): Promise<Contracts.MockToken__factory>;
+    getContractFactory(
+      name: "P2PIX",
+      signerOrOptions?: ethers.Signer | FactoryOptions
+    ): Promise<Contracts.P2PIX__factory>;
+
+    getContractAt(
+      name: "Ownable",
+      address: string,
+      signer?: ethers.Signer
+    ): Promise<Contracts.Ownable>;
+    getContractAt(
+      name: "ERC20",
+      address: string,
+      signer?: ethers.Signer
+    ): Promise<Contracts.ERC20>;
+    getContractAt(
+      name: "IERC20Metadata",
+      address: string,
+      signer?: ethers.Signer
+    ): Promise<Contracts.IERC20Metadata>;
+    getContractAt(
+      name: "IERC20",
+      address: string,
+      signer?: ethers.Signer
+    ): Promise<Contracts.IERC20>;
+    getContractAt(
+      name: "MockToken",
+      address: string,
+      signer?: ethers.Signer
+    ): Promise<Contracts.MockToken>;
+    getContractAt(
+      name: "P2PIX",
+      address: string,
+      signer?: ethers.Signer
+    ): Promise<Contracts.P2PIX>;
+
+    // default types
+    getContractFactory(
+      name: string,
+      signerOrOptions?: ethers.Signer | FactoryOptions
+    ): Promise<ethers.ContractFactory>;
+    getContractFactory(
+      abi: any[],
+      bytecode: ethers.utils.BytesLike,
+      signer?: ethers.Signer
+    ): Promise<ethers.ContractFactory>;
+    getContractAt(
+      nameOrAbi: string | any[],
+      address: string,
+      signer?: ethers.Signer
+    ): Promise<ethers.Contract>;
+  }
+}

src/types/index.ts

@@ -0,0 +1,22 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type * as openzeppelin from "./@openzeppelin";
+export type { openzeppelin };
+import type * as mockTokenSol from "./mockToken.sol";
+export type { mockTokenSol };
+import type * as p2PixSol from "./p2pix.sol";
+export type { p2PixSol };
+export * as factories from "./factories";
+export type { Ownable } from "./@openzeppelin/contracts/access/Ownable";
+export { Ownable__factory } from "./factories/@openzeppelin/contracts/access/Ownable__factory";
+export type { ERC20 } from "./@openzeppelin/contracts/token/ERC20/ERC20";
+export { ERC20__factory } from "./factories/@openzeppelin/contracts/token/ERC20/ERC20__factory";
+export type { IERC20Metadata } from "./@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata";
+export { IERC20Metadata__factory } from "./factories/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata__factory";
+export type { IERC20 } from "./@openzeppelin/contracts/token/ERC20/IERC20";
+export { IERC20__factory } from "./factories/@openzeppelin/contracts/token/ERC20/IERC20__factory";
+export type { MockToken } from "./mockToken.sol/MockToken";
+export { MockToken__factory } from "./factories/mockToken.sol/MockToken__factory";
+export type { P2PIX } from "./p2pix.sol/P2PIX";
+export { P2PIX__factory } from "./factories/p2pix.sol/P2PIX__factory";

src/types/mockToken.sol/MockToken.ts

@@ -0,0 +1,464 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+  PromiseOrValue,
+} from "../common";
+
+export interface MockTokenInterface extends utils.Interface {
+  functions: {
+    "allowance(address,address)": FunctionFragment;
+    "approve(address,uint256)": FunctionFragment;
+    "balanceOf(address)": FunctionFragment;
+    "decimals()": FunctionFragment;
+    "decreaseAllowance(address,uint256)": FunctionFragment;
+    "increaseAllowance(address,uint256)": FunctionFragment;
+    "name()": FunctionFragment;
+    "symbol()": FunctionFragment;
+    "totalSupply()": FunctionFragment;
+    "transfer(address,uint256)": FunctionFragment;
+    "transferFrom(address,address,uint256)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "allowance"
+      | "approve"
+      | "balanceOf"
+      | "decimals"
+      | "decreaseAllowance"
+      | "increaseAllowance"
+      | "name"
+      | "symbol"
+      | "totalSupply"
+      | "transfer"
+      | "transferFrom"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "allowance",
+    values: [PromiseOrValue<string>, PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "approve",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "balanceOf",
+    values: [PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(functionFragment: "decimals", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "decreaseAllowance",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "increaseAllowance",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(functionFragment: "name", values?: undefined): string;
+  encodeFunctionData(functionFragment: "symbol", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "totalSupply",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transfer",
+    values: [PromiseOrValue<string>, PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferFrom",
+    values: [
+      PromiseOrValue<string>,
+      PromiseOrValue<string>,
+      PromiseOrValue<BigNumberish>
+    ]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "allowance", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "approve", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "balanceOf", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "decimals", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "decreaseAllowance",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "increaseAllowance",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "name", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "symbol", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "totalSupply",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "transfer", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "transferFrom",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "Approval(address,address,uint256)": EventFragment;
+    "Transfer(address,address,uint256)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "Approval"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "Transfer"): EventFragment;
+}
+
+export interface ApprovalEventObject {
+  owner: string;
+  spender: string;
+  value: BigNumber;
+}
+export type ApprovalEvent = TypedEvent<
+  [string, string, BigNumber],
+  ApprovalEventObject
+>;
+
+export type ApprovalEventFilter = TypedEventFilter<ApprovalEvent>;
+
+export interface TransferEventObject {
+  from: string;
+  to: string;
+  value: BigNumber;
+}
+export type TransferEvent = TypedEvent<
+  [string, string, BigNumber],
+  TransferEventObject
+>;
+
+export type TransferEventFilter = TypedEventFilter<TransferEvent>;
+
+export interface MockToken extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: MockTokenInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    decimals(overrides?: CallOverrides): Promise<[number]>;
+
+    decreaseAllowance(
+      spender: PromiseOrValue<string>,
+      subtractedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    increaseAllowance(
+      spender: PromiseOrValue<string>,
+      addedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    name(overrides?: CallOverrides): Promise<[string]>;
+
+    symbol(overrides?: CallOverrides): Promise<[string]>;
+
+    totalSupply(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+  };
+
+  allowance(
+    owner: PromiseOrValue<string>,
+    spender: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  approve(
+    spender: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  balanceOf(
+    account: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  decimals(overrides?: CallOverrides): Promise<number>;
+
+  decreaseAllowance(
+    spender: PromiseOrValue<string>,
+    subtractedValue: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  increaseAllowance(
+    spender: PromiseOrValue<string>,
+    addedValue: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  name(overrides?: CallOverrides): Promise<string>;
+
+  symbol(overrides?: CallOverrides): Promise<string>;
+
+  totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+  transfer(
+    to: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  transferFrom(
+    from: PromiseOrValue<string>,
+    to: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    decimals(overrides?: CallOverrides): Promise<number>;
+
+    decreaseAllowance(
+      spender: PromiseOrValue<string>,
+      subtractedValue: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    increaseAllowance(
+      spender: PromiseOrValue<string>,
+      addedValue: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    name(overrides?: CallOverrides): Promise<string>;
+
+    symbol(overrides?: CallOverrides): Promise<string>;
+
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+  };
+
+  filters: {
+    "Approval(address,address,uint256)"(
+      owner?: PromiseOrValue<string> | null,
+      spender?: PromiseOrValue<string> | null,
+      value?: null
+    ): ApprovalEventFilter;
+    Approval(
+      owner?: PromiseOrValue<string> | null,
+      spender?: PromiseOrValue<string> | null,
+      value?: null
+    ): ApprovalEventFilter;
+
+    "Transfer(address,address,uint256)"(
+      from?: PromiseOrValue<string> | null,
+      to?: PromiseOrValue<string> | null,
+      value?: null
+    ): TransferEventFilter;
+    Transfer(
+      from?: PromiseOrValue<string> | null,
+      to?: PromiseOrValue<string> | null,
+      value?: null
+    ): TransferEventFilter;
+  };
+
+  estimateGas: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    decimals(overrides?: CallOverrides): Promise<BigNumber>;
+
+    decreaseAllowance(
+      spender: PromiseOrValue<string>,
+      subtractedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    increaseAllowance(
+      spender: PromiseOrValue<string>,
+      addedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    name(overrides?: CallOverrides): Promise<BigNumber>;
+
+    symbol(overrides?: CallOverrides): Promise<BigNumber>;
+
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    allowance(
+      owner: PromiseOrValue<string>,
+      spender: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    approve(
+      spender: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    balanceOf(
+      account: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    decimals(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    decreaseAllowance(
+      spender: PromiseOrValue<string>,
+      subtractedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    increaseAllowance(
+      spender: PromiseOrValue<string>,
+      addedValue: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    name(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    symbol(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    totalSupply(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    transfer(
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    transferFrom(
+      from: PromiseOrValue<string>,
+      to: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/types/mockToken.sol/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export type { MockToken } from "./MockToken";

src/types/p2pix.sol/P2PIX.ts

@@ -0,0 +1,735 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PayableOverrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+  PromiseOrValue,
+} from "../common";
+
+export interface P2PIXInterface extends utils.Interface {
+  functions: {
+    "cancelDeposit(uint256)": FunctionFragment;
+    "defaultLockBlocks()": FunctionFragment;
+    "deposit(address,uint256,string)": FunctionFragment;
+    "depositCount()": FunctionFragment;
+    "lock(uint256,address,address,uint256,uint256,bytes32[])": FunctionFragment;
+    "owner()": FunctionFragment;
+    "release(bytes32,uint256,bytes32,bytes32,uint8)": FunctionFragment;
+    "renounceOwnership()": FunctionFragment;
+    "transferOwnership(address)": FunctionFragment;
+    "unlockExpired(bytes32[])": FunctionFragment;
+    "validBacenSigners(address)": FunctionFragment;
+    "withdraw(uint256,bytes32[])": FunctionFragment;
+    "withdrawPremiums()": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "cancelDeposit"
+      | "defaultLockBlocks"
+      | "deposit"
+      | "depositCount"
+      | "lock"
+      | "owner"
+      | "release"
+      | "renounceOwnership"
+      | "transferOwnership"
+      | "unlockExpired"
+      | "validBacenSigners"
+      | "withdraw"
+      | "withdrawPremiums"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "cancelDeposit",
+    values: [PromiseOrValue<BigNumberish>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "defaultLockBlocks",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "deposit",
+    values: [
+      PromiseOrValue<string>,
+      PromiseOrValue<BigNumberish>,
+      PromiseOrValue<string>
+    ]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "depositCount",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "lock",
+    values: [
+      PromiseOrValue<BigNumberish>,
+      PromiseOrValue<string>,
+      PromiseOrValue<string>,
+      PromiseOrValue<BigNumberish>,
+      PromiseOrValue<BigNumberish>,
+      PromiseOrValue<BytesLike>[]
+    ]
+  ): string;
+  encodeFunctionData(functionFragment: "owner", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "release",
+    values: [
+      PromiseOrValue<BytesLike>,
+      PromiseOrValue<BigNumberish>,
+      PromiseOrValue<BytesLike>,
+      PromiseOrValue<BytesLike>,
+      PromiseOrValue<BigNumberish>
+    ]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "renounceOwnership",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferOwnership",
+    values: [PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "unlockExpired",
+    values: [PromiseOrValue<BytesLike>[]]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "validBacenSigners",
+    values: [PromiseOrValue<string>]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "withdraw",
+    values: [PromiseOrValue<BigNumberish>, PromiseOrValue<BytesLike>[]]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "withdrawPremiums",
+    values?: undefined
+  ): string;
+
+  decodeFunctionResult(
+    functionFragment: "cancelDeposit",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "defaultLockBlocks",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "deposit", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "depositCount",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "lock", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "owner", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "release", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "renounceOwnership",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "transferOwnership",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "unlockExpired",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "validBacenSigners",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "withdraw", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "withdrawPremiums",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "DepositAdded(address,uint256,address,uint256,uint256)": EventFragment;
+    "DepositClosed(address,uint256)": EventFragment;
+    "DepositWithdrawn(address,uint256,uint256)": EventFragment;
+    "LockAdded(address,bytes32,uint256,uint256)": EventFragment;
+    "LockReleased(address,bytes32)": EventFragment;
+    "LockReturned(address,bytes32)": EventFragment;
+    "OwnershipTransferred(address,address)": EventFragment;
+    "PremiumsWithdrawn(address,uint256)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "DepositAdded"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "DepositClosed"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "DepositWithdrawn"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "LockAdded"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "LockReleased"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "LockReturned"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OwnershipTransferred"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "PremiumsWithdrawn"): EventFragment;
+}
+
+export interface DepositAddedEventObject {
+  seller: string;
+  depositID: BigNumber;
+  token: string;
+  premium: BigNumber;
+  amount: BigNumber;
+}
+export type DepositAddedEvent = TypedEvent<
+  [string, BigNumber, string, BigNumber, BigNumber],
+  DepositAddedEventObject
+>;
+
+export type DepositAddedEventFilter = TypedEventFilter<DepositAddedEvent>;
+
+export interface DepositClosedEventObject {
+  seller: string;
+  depositID: BigNumber;
+}
+export type DepositClosedEvent = TypedEvent<
+  [string, BigNumber],
+  DepositClosedEventObject
+>;
+
+export type DepositClosedEventFilter = TypedEventFilter<DepositClosedEvent>;
+
+export interface DepositWithdrawnEventObject {
+  seller: string;
+  depositID: BigNumber;
+  amount: BigNumber;
+}
+export type DepositWithdrawnEvent = TypedEvent<
+  [string, BigNumber, BigNumber],
+  DepositWithdrawnEventObject
+>;
+
+export type DepositWithdrawnEventFilter =
+  TypedEventFilter<DepositWithdrawnEvent>;
+
+export interface LockAddedEventObject {
+  buyer: string;
+  lockID: string;
+  depositID: BigNumber;
+  amount: BigNumber;
+}
+export type LockAddedEvent = TypedEvent<
+  [string, string, BigNumber, BigNumber],
+  LockAddedEventObject
+>;
+
+export type LockAddedEventFilter = TypedEventFilter<LockAddedEvent>;
+
+export interface LockReleasedEventObject {
+  buyer: string;
+  lockId: string;
+}
+export type LockReleasedEvent = TypedEvent<
+  [string, string],
+  LockReleasedEventObject
+>;
+
+export type LockReleasedEventFilter = TypedEventFilter<LockReleasedEvent>;
+
+export interface LockReturnedEventObject {
+  buyer: string;
+  lockId: string;
+}
+export type LockReturnedEvent = TypedEvent<
+  [string, string],
+  LockReturnedEventObject
+>;
+
+export type LockReturnedEventFilter = TypedEventFilter<LockReturnedEvent>;
+
+export interface OwnershipTransferredEventObject {
+  previousOwner: string;
+  newOwner: string;
+}
+export type OwnershipTransferredEvent = TypedEvent<
+  [string, string],
+  OwnershipTransferredEventObject
+>;
+
+export type OwnershipTransferredEventFilter =
+  TypedEventFilter<OwnershipTransferredEvent>;
+
+export interface PremiumsWithdrawnEventObject {
+  owner: string;
+  amount: BigNumber;
+}
+export type PremiumsWithdrawnEvent = TypedEvent<
+  [string, BigNumber],
+  PremiumsWithdrawnEventObject
+>;
+
+export type PremiumsWithdrawnEventFilter =
+  TypedEventFilter<PremiumsWithdrawnEvent>;
+
+export interface P2PIX extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: P2PIXInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    cancelDeposit(
+      depositID: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    defaultLockBlocks(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    deposit(
+      token: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      pixTarget: PromiseOrValue<string>,
+      overrides?: PayableOverrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    depositCount(
+      overrides?: CallOverrides
+    ): Promise<[BigNumber] & { _value: BigNumber }>;
+
+    lock(
+      depositID: PromiseOrValue<BigNumberish>,
+      targetAddress: PromiseOrValue<string>,
+      relayerAddress: PromiseOrValue<string>,
+      relayerPremium: PromiseOrValue<BigNumberish>,
+      amount: PromiseOrValue<BigNumberish>,
+      expiredLocks: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    owner(overrides?: CallOverrides): Promise<[string]>;
+
+    release(
+      lockID: PromiseOrValue<BytesLike>,
+      pixTimestamp: PromiseOrValue<BigNumberish>,
+      r: PromiseOrValue<BytesLike>,
+      s: PromiseOrValue<BytesLike>,
+      v: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    transferOwnership(
+      newOwner: PromiseOrValue<string>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    unlockExpired(
+      lockIDs: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    validBacenSigners(
+      arg0: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<[boolean]>;
+
+    withdraw(
+      depositID: PromiseOrValue<BigNumberish>,
+      expiredLocks: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    withdrawPremiums(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+  };
+
+  cancelDeposit(
+    depositID: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  defaultLockBlocks(overrides?: CallOverrides): Promise<BigNumber>;
+
+  deposit(
+    token: PromiseOrValue<string>,
+    amount: PromiseOrValue<BigNumberish>,
+    pixTarget: PromiseOrValue<string>,
+    overrides?: PayableOverrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  depositCount(overrides?: CallOverrides): Promise<BigNumber>;
+
+  lock(
+    depositID: PromiseOrValue<BigNumberish>,
+    targetAddress: PromiseOrValue<string>,
+    relayerAddress: PromiseOrValue<string>,
+    relayerPremium: PromiseOrValue<BigNumberish>,
+    amount: PromiseOrValue<BigNumberish>,
+    expiredLocks: PromiseOrValue<BytesLike>[],
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  owner(overrides?: CallOverrides): Promise<string>;
+
+  release(
+    lockID: PromiseOrValue<BytesLike>,
+    pixTimestamp: PromiseOrValue<BigNumberish>,
+    r: PromiseOrValue<BytesLike>,
+    s: PromiseOrValue<BytesLike>,
+    v: PromiseOrValue<BigNumberish>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  renounceOwnership(
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  transferOwnership(
+    newOwner: PromiseOrValue<string>,
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  unlockExpired(
+    lockIDs: PromiseOrValue<BytesLike>[],
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  validBacenSigners(
+    arg0: PromiseOrValue<string>,
+    overrides?: CallOverrides
+  ): Promise<boolean>;
+
+  withdraw(
+    depositID: PromiseOrValue<BigNumberish>,
+    expiredLocks: PromiseOrValue<BytesLike>[],
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  withdrawPremiums(
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    cancelDeposit(
+      depositID: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    defaultLockBlocks(overrides?: CallOverrides): Promise<BigNumber>;
+
+    deposit(
+      token: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      pixTarget: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    depositCount(overrides?: CallOverrides): Promise<BigNumber>;
+
+    lock(
+      depositID: PromiseOrValue<BigNumberish>,
+      targetAddress: PromiseOrValue<string>,
+      relayerAddress: PromiseOrValue<string>,
+      relayerPremium: PromiseOrValue<BigNumberish>,
+      amount: PromiseOrValue<BigNumberish>,
+      expiredLocks: PromiseOrValue<BytesLike>[],
+      overrides?: CallOverrides
+    ): Promise<string>;
+
+    owner(overrides?: CallOverrides): Promise<string>;
+
+    release(
+      lockID: PromiseOrValue<BytesLike>,
+      pixTimestamp: PromiseOrValue<BigNumberish>,
+      r: PromiseOrValue<BytesLike>,
+      s: PromiseOrValue<BytesLike>,
+      v: PromiseOrValue<BigNumberish>,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    renounceOwnership(overrides?: CallOverrides): Promise<void>;
+
+    transferOwnership(
+      newOwner: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    unlockExpired(
+      lockIDs: PromiseOrValue<BytesLike>[],
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    validBacenSigners(
+      arg0: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    withdraw(
+      depositID: PromiseOrValue<BigNumberish>,
+      expiredLocks: PromiseOrValue<BytesLike>[],
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    withdrawPremiums(overrides?: CallOverrides): Promise<void>;
+  };
+
+  filters: {
+    "DepositAdded(address,uint256,address,uint256,uint256)"(
+      seller?: PromiseOrValue<string> | null,
+      depositID?: null,
+      token?: null,
+      premium?: null,
+      amount?: null
+    ): DepositAddedEventFilter;
+    DepositAdded(
+      seller?: PromiseOrValue<string> | null,
+      depositID?: null,
+      token?: null,
+      premium?: null,
+      amount?: null
+    ): DepositAddedEventFilter;
+
+    "DepositClosed(address,uint256)"(
+      seller?: PromiseOrValue<string> | null,
+      depositID?: null
+    ): DepositClosedEventFilter;
+    DepositClosed(
+      seller?: PromiseOrValue<string> | null,
+      depositID?: null
+    ): DepositClosedEventFilter;
+
+    "DepositWithdrawn(address,uint256,uint256)"(
+      seller?: PromiseOrValue<string> | null,
+      depositID?: null,
+      amount?: null
+    ): DepositWithdrawnEventFilter;
+    DepositWithdrawn(
+      seller?: PromiseOrValue<string> | null,
+      depositID?: null,
+      amount?: null
+    ): DepositWithdrawnEventFilter;
+
+    "LockAdded(address,bytes32,uint256,uint256)"(
+      buyer?: PromiseOrValue<string> | null,
+      lockID?: PromiseOrValue<BytesLike> | null,
+      depositID?: null,
+      amount?: null
+    ): LockAddedEventFilter;
+    LockAdded(
+      buyer?: PromiseOrValue<string> | null,
+      lockID?: PromiseOrValue<BytesLike> | null,
+      depositID?: null,
+      amount?: null
+    ): LockAddedEventFilter;
+
+    "LockReleased(address,bytes32)"(
+      buyer?: PromiseOrValue<string> | null,
+      lockId?: null
+    ): LockReleasedEventFilter;
+    LockReleased(
+      buyer?: PromiseOrValue<string> | null,
+      lockId?: null
+    ): LockReleasedEventFilter;
+
+    "LockReturned(address,bytes32)"(
+      buyer?: PromiseOrValue<string> | null,
+      lockId?: null
+    ): LockReturnedEventFilter;
+    LockReturned(
+      buyer?: PromiseOrValue<string> | null,
+      lockId?: null
+    ): LockReturnedEventFilter;
+
+    "OwnershipTransferred(address,address)"(
+      previousOwner?: PromiseOrValue<string> | null,
+      newOwner?: PromiseOrValue<string> | null
+    ): OwnershipTransferredEventFilter;
+    OwnershipTransferred(
+      previousOwner?: PromiseOrValue<string> | null,
+      newOwner?: PromiseOrValue<string> | null
+    ): OwnershipTransferredEventFilter;
+
+    "PremiumsWithdrawn(address,uint256)"(
+      owner?: null,
+      amount?: null
+    ): PremiumsWithdrawnEventFilter;
+    PremiumsWithdrawn(
+      owner?: null,
+      amount?: null
+    ): PremiumsWithdrawnEventFilter;
+  };
+
+  estimateGas: {
+    cancelDeposit(
+      depositID: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    defaultLockBlocks(overrides?: CallOverrides): Promise<BigNumber>;
+
+    deposit(
+      token: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      pixTarget: PromiseOrValue<string>,
+      overrides?: PayableOverrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    depositCount(overrides?: CallOverrides): Promise<BigNumber>;
+
+    lock(
+      depositID: PromiseOrValue<BigNumberish>,
+      targetAddress: PromiseOrValue<string>,
+      relayerAddress: PromiseOrValue<string>,
+      relayerPremium: PromiseOrValue<BigNumberish>,
+      amount: PromiseOrValue<BigNumberish>,
+      expiredLocks: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    owner(overrides?: CallOverrides): Promise<BigNumber>;
+
+    release(
+      lockID: PromiseOrValue<BytesLike>,
+      pixTimestamp: PromiseOrValue<BigNumberish>,
+      r: PromiseOrValue<BytesLike>,
+      s: PromiseOrValue<BytesLike>,
+      v: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    transferOwnership(
+      newOwner: PromiseOrValue<string>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    unlockExpired(
+      lockIDs: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    validBacenSigners(
+      arg0: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    withdraw(
+      depositID: PromiseOrValue<BigNumberish>,
+      expiredLocks: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    withdrawPremiums(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    cancelDeposit(
+      depositID: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    defaultLockBlocks(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    deposit(
+      token: PromiseOrValue<string>,
+      amount: PromiseOrValue<BigNumberish>,
+      pixTarget: PromiseOrValue<string>,
+      overrides?: PayableOverrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    depositCount(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    lock(
+      depositID: PromiseOrValue<BigNumberish>,
+      targetAddress: PromiseOrValue<string>,
+      relayerAddress: PromiseOrValue<string>,
+      relayerPremium: PromiseOrValue<BigNumberish>,
+      amount: PromiseOrValue<BigNumberish>,
+      expiredLocks: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    owner(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    release(
+      lockID: PromiseOrValue<BytesLike>,
+      pixTimestamp: PromiseOrValue<BigNumberish>,
+      r: PromiseOrValue<BytesLike>,
+      s: PromiseOrValue<BytesLike>,
+      v: PromiseOrValue<BigNumberish>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    transferOwnership(
+      newOwner: PromiseOrValue<string>,
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    unlockExpired(
+      lockIDs: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    validBacenSigners(
+      arg0: PromiseOrValue<string>,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    withdraw(
+      depositID: PromiseOrValue<BigNumberish>,
+      expiredLocks: PromiseOrValue<BytesLike>[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    withdrawPremiums(
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/types/p2pix.sol/index.ts

@@ -0,0 +1,4 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export type { P2PIX } from "./P2PIX";

test/1-deposit.test.js

@@ -1,86 +0,0 @@
-const { expect } = require("chai");
-const { ethers } = require("hardhat");
-
-describe("P2PIX deposit test", function () {
-
-    let owner, wallet2, wallet3, wallet4;
-    let p2pix; // Contract instance
-    let erc20; // Token instance
-
-    it("Will deploy contracts", async function () {
-
-        [owner, wallet2, wallet3, wallet4] = await ethers.getSigners();
-
-       const ERC20Factory = await ethers.getContractFactory("MockToken");
-        erc20 = await ERC20Factory.deploy(ethers.utils.parseEther('20000000', 'wei')); 
-        await erc20.deployed();
-
-        // Check initial balance
-        expect(await erc20.balanceOf(owner.address)).to.equal(ethers.utils.parseEther('20000000', 'wei'));
-
-        const P2PIX = await ethers.getContractFactory("P2PIX");
-        p2pix = await P2PIX.deploy(2, [owner.address, wallet2.address]);
-        await p2pix.deployed();
-
-        // Verify values at deployment
-        expect(await p2pix.validBacenSigners(owner.address)).to.equal(true);
-        expect(await p2pix.validBacenSigners(wallet2.address)).to.equal(true);
-    });
-
-    it("Should allow create a deposit", async function () {
-
-        let transaction = await erc20.approve(p2pix.address,ethers.utils.parseEther('2000'));
-        await expect(transaction).to.emit(erc20, 'Approval').withArgs(
-            owner.address,
-            p2pix.address,
-            ethers.utils.parseEther('2000')
-        )
-
-        transaction = await p2pix.deposit(
-            erc20.address,
-            ethers.utils.parseEther('1000'),
-            'SELLER PIX KEY',
-            {value:ethers.utils.parseEther('0.1')}
-        );
-        await expect(transaction).to.emit(p2pix, 'DepositAdded').withArgs(
-            owner.address,
-            0,
-            erc20.address,
-            ethers.utils.parseEther('0.1'),
-            ethers.utils.parseEther('1000')
-        )
-    })
-
-    it("Should allow create second deposit", async function () {
-        transaction = await p2pix.deposit(
-            erc20.address,
-            ethers.utils.parseEther('1000'),
-            'SELLER PIX KEY',
-            {value:ethers.utils.parseEther('0.1')}
-        )
-        await expect(transaction).to.emit(p2pix, 'DepositAdded').withArgs(
-            owner.address,
-            1,
-            erc20.address,
-            ethers.utils.parseEther('0.1'),
-            ethers.utils.parseEther('1000')
-        )
-    })
-
-    it("Should allow cancel first deposit", async function () {
-        const transaction = await p2pix.cancelDeposit(0);
-        await expect(transaction).to.emit(p2pix, 'DepositClosed').withArgs(
-            owner.address,
-            0
-        )
-    })
-
-    it("Should allow withdraw the deposit", async function () {
-        const transaction = await p2pix.withdraw(0, []);
-        await expect(transaction).to.emit(p2pix, 'DepositWithdrawn').withArgs(
-            owner.address,
-            0,
-            ethers.utils.parseEther('1000')
-        )
-    })
-})

test/1-deposit.test.ts

@@ -0,0 +1,113 @@
+import { SignerWithAddress } from "@nomiclabs/hardhat-ethers/signers";
+import { expect } from "chai";
+import { ethers } from "hardhat";
+
+import { MockToken, P2PIX } from "../src/types";
+
+describe("P2PIX deposit test", () => {
+  let owner: SignerWithAddress;
+  let wallet2: SignerWithAddress;
+  // let wallet3: SignerWithAddress;
+  // let wallet4: SignerWithAddress;
+  let p2pix: P2PIX; // Contract instance
+  let erc20: MockToken; // Token instance
+
+  it("Will deploy contracts", async () => {
+    [owner, wallet2 /* wallet3, wallet4 */] =
+      await ethers.getSigners();
+
+    const ERC20Factory = await ethers.getContractFactory(
+      "MockToken",
+    );
+    erc20 = await ERC20Factory.deploy(
+      ethers.utils.parseEther("20000000"),
+    );
+    await erc20.deployed();
+
+    // Check initial balance
+    expect(await erc20.balanceOf(owner.address)).to.equal(
+      ethers.utils.parseEther("20000000"),
+    );
+
+    const P2PIX = await ethers.getContractFactory("P2PIX");
+    p2pix = await P2PIX.deploy(2, [
+      owner.address,
+      wallet2.address,
+    ]);
+    await p2pix.deployed();
+
+    // Verify values at deployment
+    expect(
+      await p2pix.validBacenSigners(owner.address),
+    ).to.equal(true);
+    expect(
+      await p2pix.validBacenSigners(wallet2.address),
+    ).to.equal(true);
+  });
+
+  it("Should allow create a deposit", async () => {
+    let transaction = await erc20.approve(
+      p2pix.address,
+      ethers.utils.parseEther("2000"),
+    );
+    await expect(transaction)
+      .to.emit(erc20, "Approval")
+      .withArgs(
+        owner.address,
+        p2pix.address,
+        ethers.utils.parseEther("2000"),
+      );
+
+    transaction = await p2pix.deposit(
+      erc20.address,
+      ethers.utils.parseEther("1000"),
+      "SELLER PIX KEY",
+      { value: ethers.utils.parseEther("0.1") },
+    );
+    await expect(transaction)
+      .to.emit(p2pix, "DepositAdded")
+      .withArgs(
+        owner.address,
+        0,
+        erc20.address,
+        ethers.utils.parseEther("0.1"),
+        ethers.utils.parseEther("1000"),
+      );
+  });
+
+  it("Should allow create second deposit", async () => {
+    const transaction = await p2pix.deposit(
+      erc20.address,
+      ethers.utils.parseEther("1000"),
+      "SELLER PIX KEY",
+      { value: ethers.utils.parseEther("0.1") },
+    );
+    await expect(transaction)
+      .to.emit(p2pix, "DepositAdded")
+      .withArgs(
+        owner.address,
+        1,
+        erc20.address,
+        ethers.utils.parseEther("0.1"),
+        ethers.utils.parseEther("1000"),
+      );
+  });
+
+  it("Should allow cancel first deposit", async () => {
+    const transaction = await p2pix.cancelDeposit(0);
+    await expect(transaction)
+      .to.emit(p2pix, "DepositClosed")
+      .withArgs(owner.address, 0);
+  });
+
+  it("Should allow withdraw the deposit", async () => {
+    const transaction = await p2pix.withdraw(0, []);
+    await expect(transaction)
+      .to.emit(p2pix, "DepositWithdrawn")
+      .withArgs(
+        owner.address,
+        0,
+        ethers.utils.parseEther("1000"),
+      );
+  });
+});

test/2-lock-release.test.js

@@ -1,240 +0,0 @@
-const { expect } = require("chai");
-const { ethers } = require("hardhat");
-
-describe("P2PIX lock/release test", function () {
-
-    let owner, wallet2, wallet3, wallet4;
-    let p2pix; // Contract instance
-    let erc20; // Token instance
-    let lockID;
-
-    it("Will deploy contracts", async function () {
-
-        [owner, wallet2, wallet3, wallet4] = await ethers.getSigners();
-
-       const ERC20Factory = await ethers.getContractFactory("MockToken");
-        erc20 = await ERC20Factory.deploy(ethers.utils.parseEther('20000000', 'wei')); 
-        await erc20.deployed();
-
-        // Check initial balance
-        expect(await erc20.balanceOf(owner.address)).to.equal(ethers.utils.parseEther('20000000', 'wei'));
-
-        const P2PIX = await ethers.getContractFactory("P2PIX");
-        p2pix = await P2PIX.deploy(3, [owner.address, wallet2.address]);
-        await p2pix.deployed();
-
-        // Verify values at deployment
-        expect(await p2pix.validBacenSigners(owner.address)).to.equal(true);
-        expect(await p2pix.validBacenSigners(wallet2.address)).to.equal(true);
-        expect(await p2pix.validBacenSigners(wallet3.address)).to.equal(false);
-    });
-
-    it("Should allow create a deposit", async function () {
-
-        let transaction = await erc20.approve(p2pix.address,ethers.utils.parseEther('1000'));
-        await expect(transaction).to.emit(erc20, 'Approval').withArgs(
-            owner.address,
-            p2pix.address,
-            ethers.utils.parseEther('1000')
-        )
-
-        transaction = await p2pix.deposit(
-            erc20.address,
-            ethers.utils.parseEther('1000'),
-            'SELLER PIX KEY',
-            {value:ethers.utils.parseEther('0.1')}
-        );
-        await expect(transaction).to.emit(p2pix, 'DepositAdded').withArgs(
-            owner.address,
-            0,
-            erc20.address,
-            ethers.utils.parseEther('0.1'),
-            ethers.utils.parseEther('1000')
-        )
-        console.log('GAS USED:', (await transaction.wait()).cumulativeGasUsed.toString())
-    })
-
-    it("Should allow create a new lock", async function () {
-        transaction = await p2pix.connect(wallet3).lock(
-            0,
-            wallet3.address,
-            ethers.constants.AddressZero,
-            '0',
-            ethers.utils.parseEther('100'),
-            []
-        )
-        lockID = ethers.utils.solidityKeccak256(['uint256', 'uint256', 'address'], [
-            0,
-            ethers.utils.parseEther('100'),
-            wallet3.address
-        ])
-        await expect(transaction).to.emit(p2pix, 'LockAdded').withArgs(
-            wallet3.address,
-            lockID,
-            0,
-            ethers.utils.parseEther('100')
-        )
-        console.log('GAS USED:', (await transaction.wait()).cumulativeGasUsed.toString())
-    })
-
-    it("Should release the locked amount to the buyer", async function () {
-        const endtoendID = '123'; 
-        const messageToSign = ethers.utils.solidityKeccak256(['string', 'uint256', 'uint256'], [
-            'SELLER PIX KEY',
-            ethers.utils.parseEther('100'),
-            endtoendID
-        ])
-        // Note: messageToSign is a string, that is 66-bytes long, to sign the
-        //       binary value, we must convert it to the 32 byte Array that
-        //       the string represents
-        //
-        // i.e.
-        //   // 66-byte string
-        //   "0x592fa743889fc7f92ac2a37bb1f5ba1daf2a5c84741ca0e0061d243a2e6707ba"
-        //   ... vs ...
-        //  // 32 entry Uint8Array
-        //  [ 89, 47, 167, 67, 136, 159, ... 103, 7, 186]
-        const messageHashBytes = ethers.utils.arrayify(messageToSign)
-        // Sign the string message
-        const flatSig = await owner.signMessage(messageHashBytes);
-        // For Solidity, we need the expanded-format of a signature
-        const sig = ethers.utils.splitSignature(flatSig);
-        transaction = await p2pix.connect(wallet3).release(
-            lockID,
-            endtoendID,
-            sig.r,
-            sig.s,
-            sig.v
-        )
-        await expect(transaction).to.emit(p2pix, 'LockReleased').withArgs(
-            wallet3.address,
-            lockID
-        )
-        console.log('GAS USED:', (await transaction.wait()).cumulativeGasUsed.toString())
-        expect(await erc20.balanceOf(wallet3.address)).to.equal(ethers.utils.parseEther('100'));
-    })
-
-    it("Should allow recreate same lock", async function () {
-        transaction = await p2pix.connect(wallet3).lock(
-            0,
-            wallet3.address,
-            ethers.constants.AddressZero,
-            '0',
-            ethers.utils.parseEther('100'),
-            []
-        )
-        lockID = ethers.utils.solidityKeccak256(['uint256', 'uint256', 'address'], [
-            0,
-            ethers.utils.parseEther('100'),
-            wallet3.address
-        ])
-        await expect(transaction).to.emit(p2pix, 'LockAdded').withArgs(
-            wallet3.address,
-            lockID,
-            0,
-            ethers.utils.parseEther('100'),
-        )
-    })
-
-    it("Should prevent create again same lock", async function () {
-        await expect(p2pix.connect(wallet3).lock(
-            0,
-            wallet3.address,
-            ethers.constants.AddressZero,
-            '0',
-            ethers.utils.parseEther('100'),
-            []
-        )).to.be.revertedWith('P2PIX: Another lock with same ID is not expired yet');
-    })
-
-    it("Should release the locked amount to the buyer", async function () {
-        const endtoendID = '124'; 
-        const messageToSign = ethers.utils.solidityKeccak256(['string', 'uint256', 'uint256'], [
-            'SELLER PIX KEY',
-            ethers.utils.parseEther('100'),
-            endtoendID
-        ])
-        const messageHashBytes = ethers.utils.arrayify(messageToSign)
-        const flatSig = await owner.signMessage(messageHashBytes);
-        const sig = ethers.utils.splitSignature(flatSig);
-        transaction = await p2pix.connect(wallet3).release(
-            lockID,
-            endtoendID,
-            sig.r,
-            sig.s,
-            sig.v
-        )
-        expect(await erc20.balanceOf(wallet3.address)).to.equal(ethers.utils.parseEther('200'));
-    })
-    
-    it("Should prevent release again the lock", async function () {
-        const endtoendID = '125'; 
-        const messageToSign = ethers.utils.solidityKeccak256(['string', 'uint256', 'uint256'], [
-            'SELLER PIX KEY',
-            ethers.utils.parseEther('100'),
-            endtoendID
-        ])
-        const messageHashBytes = ethers.utils.arrayify(messageToSign)
-        const flatSig = await owner.signMessage(messageHashBytes);
-        const sig = ethers.utils.splitSignature(flatSig);
-        await expect(p2pix.connect(wallet3).release(
-            lockID,
-            endtoendID,
-            sig.r,
-            sig.s,
-            sig.v
-        )).to.be.revertedWith('P2PIX: Lock already released or returned');
-    })
-
-    it("Should prevent create a 900 lock", async function () {
-        await expect(p2pix.connect(wallet3).lock(
-            0,
-            wallet3.address,
-            ethers.constants.AddressZero,
-            '0',
-            ethers.utils.parseEther('900'),
-            []
-        )).to.be.revertedWith('P2PIX: Not enough token remaining on deposit');
-    })
-
-    it("Should allow recreate same lock again", async function () {
-        transaction = await p2pix.connect(wallet3).lock(
-            0,
-            wallet3.address,
-            ethers.constants.AddressZero,
-            '0',
-            ethers.utils.parseEther('100'),
-            []
-        )
-        lockID = ethers.utils.solidityKeccak256(['uint256', 'uint256', 'address'], [
-            0,
-            ethers.utils.parseEther('100'),
-            wallet3.address
-        ])
-        await expect(transaction).to.emit(p2pix, 'LockAdded').withArgs(
-            wallet3.address,
-            lockID,
-            0,
-            ethers.utils.parseEther('100')
-        )
-    })
-
-    it("Should allow unlock expired lock", async function () {
-        await expect(p2pix.unlockExpired([lockID]))
-            .to.be.revertedWith('P2PIX: Lock not expired or already released');
-        await network.provider.send("evm_mine");
-        await network.provider.send("evm_mine");
-        await network.provider.send("evm_mine");
-        transaction = await p2pix.unlockExpired([lockID])
-        await expect(transaction).to.emit(p2pix, 'LockReturned').withArgs(
-            wallet3.address,
-            lockID
-        )
-    })
-
-    it("Should prevent unlock again", async function () {
-        await expect(p2pix.unlockExpired([lockID]))
-            .to.be.revertedWith('P2PIX: Lock not expired or already released');
-    })
-
-})

test/2-lock-release.test.ts

@@ -0,0 +1,306 @@
+import { SignerWithAddress } from "@nomiclabs/hardhat-ethers/signers";
+import { expect } from "chai";
+import { ethers, network } from "hardhat";
+
+import { MockToken, P2PIX } from "../src/types";
+
+describe("P2PIX deposit test", () => {
+  let owner: SignerWithAddress;
+  let wallet2: SignerWithAddress;
+  let wallet3: SignerWithAddress;
+  // let wallet4: SignerWithAddress;
+  let p2pix: P2PIX; // Contract instance
+  let erc20: MockToken; // Token instance
+  let lockID: string;
+
+  it("Will deploy contracts", async () => {
+    [owner, wallet2, wallet3 /* , wallet4 */] =
+      await ethers.getSigners();
+
+    const ERC20Factory = await ethers.getContractFactory(
+      "MockToken",
+    );
+    erc20 = await ERC20Factory.deploy(
+      ethers.utils.parseEther("20000000"),
+    );
+    await erc20.deployed();
+
+    // Check initial balance
+    expect(await erc20.balanceOf(owner.address)).to.equal(
+      ethers.utils.parseEther("20000000"),
+    );
+
+    const P2PIX = await ethers.getContractFactory("P2PIX");
+    p2pix = await P2PIX.deploy(3, [
+      owner.address,
+      wallet2.address,
+    ]);
+    await p2pix.deployed();
+
+    // Verify values at deployment
+    expect(
+      await p2pix.validBacenSigners(owner.address),
+    ).to.equal(true);
+    expect(
+      await p2pix.validBacenSigners(wallet2.address),
+    ).to.equal(true);
+    expect(
+      await p2pix.validBacenSigners(wallet3.address),
+    ).to.equal(false);
+  });
+
+  it("Should allow create a deposit", async () => {
+    let transaction = await erc20.approve(
+      p2pix.address,
+      ethers.utils.parseEther("1000"),
+    );
+    await expect(transaction)
+      .to.emit(erc20, "Approval")
+      .withArgs(
+        owner.address,
+        p2pix.address,
+        ethers.utils.parseEther("1000"),
+      );
+    transaction = await p2pix.deposit(
+      erc20.address,
+      ethers.utils.parseEther("1000"),
+      "SELLER PIX KEY",
+      { value: ethers.utils.parseEther("0.1") },
+    );
+    await expect(transaction)
+      .to.emit(p2pix, "DepositAdded")
+      .withArgs(
+        owner.address,
+        0,
+        erc20.address,
+        ethers.utils.parseEther("0.1"),
+        ethers.utils.parseEther("1000"),
+      );
+    console.log(
+      "GAS USED:",
+      (await transaction.wait()).cumulativeGasUsed.toString(),
+    );
+  });
+
+  it("Should allow create a new lock", async () => {
+    const transaction = await p2pix
+      .connect(wallet3)
+      .lock(
+        0,
+        wallet3.address,
+        ethers.constants.AddressZero,
+        "0",
+        ethers.utils.parseEther("100"),
+        [],
+      );
+    lockID = ethers.utils.solidityKeccak256(
+      ["uint256", "uint256", "address"],
+      [0, ethers.utils.parseEther("100"), wallet3.address],
+    );
+    await expect(transaction)
+      .to.emit(p2pix, "LockAdded")
+      .withArgs(
+        wallet3.address,
+        lockID,
+        0,
+        ethers.utils.parseEther("100"),
+      );
+    console.log(
+      "GAS USED:",
+      (await transaction.wait()).cumulativeGasUsed.toString(),
+    );
+  });
+
+  it("Should release the locked amount to the buyer", async () => {
+    const endtoendID = "123";
+    const messageToSign = ethers.utils.solidityKeccak256(
+      ["string", "uint256", "uint256"],
+      [
+        "SELLER PIX KEY",
+        ethers.utils.parseEther("100"),
+        endtoendID,
+      ],
+    );
+    // Note: messageToSign is a string, that is 66-bytes long, to sign the
+    //       binary value, we must convert it to the 32 byte Array that
+    //       the string represents
+    //
+    // i.e.
+    //   // 66-byte string
+    //   "0x592fa743889fc7f92ac2a37bb1f5ba1daf2a5c84741ca0e0061d243a2e6707ba"
+    //   ... vs ...
+    //  // 32 entry Uint8Array
+    //  [ 89, 47, 167, 67, 136, 159, ... 103, 7, 186]
+    const messageHashBytes =
+      ethers.utils.arrayify(messageToSign);
+    // Sign the string message
+    const flatSig = await owner.signMessage(messageHashBytes);
+    // For Solidity, we need the expanded-format of a signature
+    const sig = ethers.utils.splitSignature(flatSig);
+    const transaction = await p2pix
+      .connect(wallet3)
+      .release(lockID, endtoendID, sig.r, sig.s, sig.v);
+    await expect(transaction)
+      .to.emit(p2pix, "LockReleased")
+      .withArgs(wallet3.address, lockID);
+    console.log(
+      "GAS USED:",
+      (await transaction.wait()).cumulativeGasUsed.toString(),
+    );
+    expect(await erc20.balanceOf(wallet3.address)).to.equal(
+      ethers.utils.parseEther("100"),
+    );
+  });
+
+  it("Should allow recreate same lock", async () => {
+    const transaction = await p2pix
+      .connect(wallet3)
+      .lock(
+        0,
+        wallet3.address,
+        ethers.constants.AddressZero,
+        "0",
+        ethers.utils.parseEther("100"),
+        [],
+      );
+    lockID = ethers.utils.solidityKeccak256(
+      ["uint256", "uint256", "address"],
+      [0, ethers.utils.parseEther("100"), wallet3.address],
+    );
+    await expect(transaction)
+      .to.emit(p2pix, "LockAdded")
+      .withArgs(
+        wallet3.address,
+        lockID,
+        0,
+        ethers.utils.parseEther("100"),
+      );
+  });
+
+  it("Should prevent create again same lock", async () => {
+    await expect(
+      p2pix
+        .connect(wallet3)
+        .lock(
+          0,
+          wallet3.address,
+          ethers.constants.AddressZero,
+          "0",
+          ethers.utils.parseEther("100"),
+          [],
+        ),
+    ).to.be.revertedWith(
+      "P2PIX: Another lock with same ID is not expired yet",
+    );
+  });
+
+  it("Should release the locked amount to the buyer", async () => {
+    const endtoendID = "124";
+    const messageToSign = ethers.utils.solidityKeccak256(
+      ["string", "uint256", "uint256"],
+      [
+        "SELLER PIX KEY",
+        ethers.utils.parseEther("100"),
+        endtoendID,
+      ],
+    );
+    const messageHashBytes =
+      ethers.utils.arrayify(messageToSign);
+    const flatSig = await owner.signMessage(messageHashBytes);
+    const sig = ethers.utils.splitSignature(flatSig);
+    await p2pix
+      .connect(wallet3)
+      .release(lockID, endtoendID, sig.r, sig.s, sig.v);
+    expect(await erc20.balanceOf(wallet3.address)).to.equal(
+      ethers.utils.parseEther("200"),
+    );
+  });
+
+  it("Should prevent release again the lock", async () => {
+    const endtoendID = "125";
+    const messageToSign = ethers.utils.solidityKeccak256(
+      ["string", "uint256", "uint256"],
+      [
+        "SELLER PIX KEY",
+        ethers.utils.parseEther("100"),
+        endtoendID,
+      ],
+    );
+    const messageHashBytes =
+      ethers.utils.arrayify(messageToSign);
+    const flatSig = await owner.signMessage(messageHashBytes);
+    const sig = ethers.utils.splitSignature(flatSig);
+    await expect(
+      p2pix
+        .connect(wallet3)
+        .release(lockID, endtoendID, sig.r, sig.s, sig.v),
+    ).to.be.revertedWith(
+      "P2PIX: Lock already released or returned",
+    );
+  });
+
+  it("Should prevent create a 900 lock", async () => {
+    await expect(
+      p2pix
+        .connect(wallet3)
+        .lock(
+          0,
+          wallet3.address,
+          ethers.constants.AddressZero,
+          "0",
+          ethers.utils.parseEther("900"),
+          [],
+        ),
+    ).to.be.revertedWith(
+      "P2PIX: Not enough token remaining on deposit",
+    );
+  });
+
+  it("Should allow recreate same lock again", async () => {
+    const transaction = await p2pix
+      .connect(wallet3)
+      .lock(
+        0,
+        wallet3.address,
+        ethers.constants.AddressZero,
+        "0",
+        ethers.utils.parseEther("100"),
+        [],
+      );
+    lockID = ethers.utils.solidityKeccak256(
+      ["uint256", "uint256", "address"],
+      [0, ethers.utils.parseEther("100"), wallet3.address],
+    );
+    await expect(transaction)
+      .to.emit(p2pix, "LockAdded")
+      .withArgs(
+        wallet3.address,
+        lockID,
+        0,
+        ethers.utils.parseEther("100"),
+      );
+  });
+
+  it("Should allow unlock expired lock", async () => {
+    await expect(
+      p2pix.unlockExpired([lockID]),
+    ).to.be.revertedWith(
+      "P2PIX: Lock not expired or already released",
+    );
+    await network.provider.send("evm_mine");
+    await network.provider.send("evm_mine");
+    await network.provider.send("evm_mine");
+    const transaction = await p2pix.unlockExpired([lockID]);
+    await expect(transaction)
+      .to.emit(p2pix, "LockReturned")
+      .withArgs(wallet3.address, lockID);
+  });
+
+  it("Should prevent unlock again", async () => {
+    await expect(
+      p2pix.unlockExpired([lockID]),
+    ).to.be.revertedWith(
+      "P2PIX: Lock not expired or already released",
+    );
+  });
+});

tsconfig.json

@@ -0,0 +1,22 @@
+{
+  "compilerOptions": {
+    "declaration": true,
+    "declarationMap": true,
+    "emitDecoratorMetadata": true,
+    "esModuleInterop": true,
+    "experimentalDecorators": true,
+    "forceConsistentCasingInFileNames": true,
+    "lib": ["es6"],
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "noImplicitAny": true,
+    "removeComments": true,
+    "resolveJsonModule": true,
+    "sourceMap": true,
+    "strict": true,
+    "target": "es6"
+  },
+  "exclude": ["node_modules"],
+  "files": ["./hardhat.config.ts"],
+  "include": ["src/**/*", "test/**/*", "scripts/**/*"]
+}