Merge pull request #9 from doiim/dev

Merge dev branch updates to main.

.env.example

@@ -9,4 +9,4 @@ POLYGONSCAN_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"
+REPORT_GAS="true"

.prettierignore

@@ -18,4 +18,6 @@
 coverage.json
 npm-debug.log*
 yarn-debug.log*
-yarn-error.log*
+yarn-error.log*
+
+contracts/p2pix.sol

README.md

@@ -18,7 +18,6 @@
 │   ├── tokens
 │   │   └── ERC20.sol
 │   └── utils
-│       ├── Counters.sol
 │       ├── MerkleProofLib.sol
 │       ├── ReentrancyGuard.sol
 │       └── SafeTransferLib.sol
@@ -32,10 +31,12 @@
 
 ## Current Deployment addresses
 
-| Testnet 	| Token Address                              	| P2pix Address                              	|
+### V1
-|---------	|--------------------------------------------	|--------------------------------------------	|
+
-| Goerli  	| 0x294003F602c321627152c6b7DED3EAb5bEa853Ee 	| 0x5f3EFA9A90532914545CEf527C530658af87e196 	|
+| Testnet | Token Address                              | P2pix Address                              |
-| Mumbai  	| 0x294003F602c321627152c6b7DED3EAb5bEa853Ee  | 0x5f3EFA9A90532914545CEf527C530658af87e196	|
+| ------- | ------------------------------------------ | ------------------------------------------ |
+| Goerli  | 0x294003F602c321627152c6b7DED3EAb5bEa853Ee | 0x5f3EFA9A90532914545CEf527C530658af87e196 |
+| Mumbai  | 0x294003F602c321627152c6b7DED3EAb5bEa853Ee | 0x5f3EFA9A90532914545CEf527C530658af87e196 |
 
 <!-- All contracts deployed by 0x8dC06F985C131166570825F52447E8c88d64aE20 -->
 
@@ -47,6 +48,24 @@
 
 <!-- https://mumbai.polygonscan.com/address/0x5f3EFA9A90532914545CEf527C530658af87e196#code -->
 
+### V2
+
+| Testnet | Token Address                              | P2pix Address                              | Reputation Address                         | Multicall Address                          |
+| ------- | ------------------------------------------ | ------------------------------------------ | ------------------------------------------ | ------------------------------------------ |
+| Goerli  | 0x4A2886EAEc931e04297ed336Cc55c4eb7C75BA00 | 0x2414817FF64A114d91eCFA16a834d3fCf69103d4 | 0x2CFD9354Ec7614fEf036EFd6A730dA1d5fC2762A | 0x8FE009992d96A86c7f0Bccdaf1eC3471E302a8a6 |
+| Mumbai  | 0xC86042E9F2977C62Da8c9dDF7F9c40fde4796A29 | 0x4A2886EAEc931e04297ed336Cc55c4eb7C75BA00 | 0x570445E3eF413bCDb5De79ed27B1c3840683e385 | 0x718B2C4DE4F9654E1349F610ff561249bfe1c418 |
+
+<!-- All contracts deployed by 0x8dC06F985C131166570825F52447E8c88d64aE20 -->
+<!-- https://goerli.etherscan.io/address/0x4A2886EAEc931e04297ed336Cc55c4eb7C75BA00#code -->
+<!-- https://goerli.etherscan.io/address/0x2414817FF64A114d91eCFA16a834d3fCf69103d4#code -->
+<!-- https://goerli.etherscan.io/address/0x2CFD9354Ec7614fEf036EFd6A730dA1d5fC2762A#code -->
+<!-- https://goerli.etherscan.io/address/0x8FE009992d96A86c7f0Bccdaf1eC3471E302a8a6#code -->
+
+<!-- https://mumbai.polygonscan.com/address/0xC86042E9F2977C62Da8c9dDF7F9c40fde4796A29#code -->
+<!-- https://mumbai.polygonscan.com/address/0x4A2886EAEc931e04297ed336Cc55c4eb7C75BA00#code -->
+<!-- https://mumbai.polygonscan.com/address/0x570445e3ef413bcdb5de79ed27b1c3840683e385#code -->
+<!-- https://mumbai.polygonscan.com/address/0x718B2C4DE4F9654E1349F610ff561249bfe1c418#code -->
+
 ## Usage
 
 ### Pre Requisites
@@ -121,7 +140,6 @@ yarn deploy2:localhost
 **_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.
 
-
 ## Deploying to testnets
 
 Deploy to Ethereum's Goerli testnet:

artifacts/contracts/DataTypes.sol/DataTypes.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

artifacts/contracts/EventAndErrors.sol/EventAndErrors.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

artifacts/contracts/EventAndErrors.sol/EventAndErrors.json

@@ -18,11 +18,21 @@
       "name": "AmountNotAllowed",
       "type": "error"
     },
+    {
+      "inputs": [],
+      "name": "DecOverflow",
+      "type": "error"
+    },
     {
       "inputs": [],
       "name": "DepositAlreadyExists",
       "type": "error"
     },
+    {
+      "inputs": [],
+      "name": "EmptyPixTarget",
+      "type": "error"
+    },
     {
       "inputs": [],
       "name": "InvalidDeposit",
@@ -48,6 +58,11 @@
       "name": "LoopOverflow",
       "type": "error"
     },
+    {
+      "inputs": [],
+      "name": "MaxBalExceeded",
+      "type": "error"
+    },
     {
       "inputs": [],
       "name": "NoTokens",
@@ -63,6 +78,11 @@
       "name": "NotExpired",
       "type": "error"
     },
+    {
+      "inputs": [],
+      "name": "NotInitialized",
+      "type": "error"
+    },
     {
       "inputs": [],
       "name": "OnlySeller",
@@ -111,12 +131,6 @@
           "name": "seller",
           "type": "address"
         },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "depositID",
-          "type": "uint256"
-        },
         {
           "indexed": false,
           "internalType": "address",
@@ -144,29 +158,10 @@
         },
         {
           "indexed": false,
-          "internalType": "uint256",
-          "name": "depositID",
-          "type": "uint256"
-        }
-      ],
-      "name": "DepositClosed",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
           "internalType": "address",
-          "name": "seller",
+          "name": "token",
           "type": "address"
         },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "depositID",
-          "type": "uint256"
-        },
         {
           "indexed": false,
           "internalType": "uint256",
@@ -207,14 +202,14 @@
         },
         {
           "indexed": true,
-          "internalType": "bytes32",
+          "internalType": "uint256",
           "name": "lockID",
-          "type": "bytes32"
+          "type": "uint256"
         },
         {
           "indexed": false,
           "internalType": "uint256",
-          "name": "depositID",
+          "name": "seller",
           "type": "uint256"
         },
         {
@@ -251,9 +246,9 @@
         },
         {
           "indexed": false,
-          "internalType": "bytes32",
+          "internalType": "uint256",
           "name": "lockId",
-          "type": "bytes32"
+          "type": "uint256"
         },
         {
           "indexed": false,
@@ -276,9 +271,9 @@
         },
         {
           "indexed": false,
-          "internalType": "bytes32",
+          "internalType": "uint256",
           "name": "lockId",
-          "type": "bytes32"
+          "type": "uint256"
         }
       ],
       "name": "LockReturned",
@@ -316,6 +311,31 @@
       "name": "RootUpdated",
       "type": "event"
     },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "seller",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "address",
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "bool",
+          "name": "state",
+          "type": "bool"
+        }
+      ],
+      "name": "ValidSet",
+      "type": "event"
+    },
     {
       "anonymous": false,
       "inputs": [

artifacts/contracts/Reputation.sol/Reputation.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

artifacts/contracts/lib/auth/Owned.sol/Owned.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

artifacts/contracts/lib/interfaces/IReputation.sol/IReputation.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

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

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

artifacts/contracts/lib/tokens/ERC20.sol/ERC20.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

artifacts/contracts/lib/utils/Counters.sol/Counters.dbg.json

@@ -1,4 +0,0 @@
-{
-  "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
-}

artifacts/contracts/lib/utils/Counters.sol/Counters.json

@@ -1,16 +0,0 @@
-{
-  "_format": "hh-sol-artifact-1",
-  "contractName": "Counters",
-  "sourceName": "contracts/lib/utils/Counters.sol",
-  "abi": [
-    {
-      "inputs": [],
-      "name": "DecOverflow",
-      "type": "error"
-    }
-  ],
-  "bytecode": "0x602d6037600b82828239805160001a607314602a57634e487b7160e01b600052600060045260246000fd5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000809000a",
-  "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000809000a",
-  "linkReferences": {},
-  "deployedLinkReferences": {}
-}

artifacts/contracts/lib/utils/MerkleProofLib.sol/MerkleProofLib.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

artifacts/contracts/lib/utils/Multicall.sol/Multicall.dbg.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../../../build-info/901b067f80b6616939e558d795c555e5.json"
+}

artifacts/contracts/lib/utils/Multicall.sol/Multicall.json

@@ -0,0 +1,116 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "Multicall",
+  "sourceName": "contracts/lib/utils/Multicall.sol",
+  "abi": [
+    {
+      "inputs": [],
+      "stateMutability": "payable",
+      "type": "constructor"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "string",
+          "name": "reason",
+          "type": "string"
+        }
+      ],
+      "name": "CallFailed",
+      "type": "error"
+    },
+    {
+      "inputs": [
+        {
+          "components": [
+            {
+              "internalType": "address",
+              "name": "target",
+              "type": "address"
+            },
+            {
+              "internalType": "bytes",
+              "name": "callData",
+              "type": "bytes"
+            }
+          ],
+          "internalType": "struct Multicall.Call[]",
+          "name": "calls",
+          "type": "tuple[]"
+        }
+      ],
+      "name": "mtc1",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes[]",
+          "name": "",
+          "type": "bytes[]"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "components": [
+            {
+              "internalType": "address",
+              "name": "target",
+              "type": "address"
+            },
+            {
+              "internalType": "bytes",
+              "name": "callData",
+              "type": "bytes"
+            }
+          ],
+          "internalType": "struct Multicall.Call[]",
+          "name": "calls",
+          "type": "tuple[]"
+        }
+      ],
+      "name": "mtc2",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes32",
+          "name": "",
+          "type": "bytes32"
+        },
+        {
+          "components": [
+            {
+              "internalType": "bool",
+              "name": "success",
+              "type": "bool"
+            },
+            {
+              "internalType": "bytes",
+              "name": "returnData",
+              "type": "bytes"
+            }
+          ],
+          "internalType": "struct Multicall.Result[]",
+          "name": "",
+          "type": "tuple[]"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "bytecode": "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",
+  "deployedBytecode": "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",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}

artifacts/contracts/lib/utils/ReentrancyGuard.sol/ReentrancyGuard.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

artifacts/contracts/lib/utils/SafeTransferLib.sol/SafeTransferLib.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

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

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../build-info/7e875699b08052f41af96a3837e5d6fb.json"
+  "buildInfo": "../../build-info/901b067f80b6616939e558d795c555e5.json"
 }

contracts/DataTypes.sol

@@ -2,26 +2,16 @@
 pragma solidity 0.8.9;
 
 library DataTypes {
-    struct Deposit {
-        /// @dev Remaining tokens available.
-        uint256 remaining;
-        /// @dev The PIX account for the seller receive transactions.
-        string pixTarget;
-        address seller;
-        /// @dev ERC20 stable token address.
-        address token;
-        /// @dev Could be invalidated by the seller.
-        bool valid;
-    }
-
     struct Lock {
-        uint256 depositID;
+        uint256 sellerKey;
+        uint256 counter;
         /// @dev Amount to be paid for relayer.
         uint256 relayerPremium;
         /// @dev Amount to be tranfered via PIX.
         uint256 amount;
         /// @dev If not paid at this block will be expired.
         uint256 expirationBlock;
+        uint160 pixTarget;
         /// @dev Where the tokens are sent the when order gets validated.
         address buyerAddress;
         /// @dev Relayer's target address that receives `relayerPremium` funds.
@@ -29,5 +19,14 @@ library DataTypes {
         /// @dev Relayer address (msg.sender) that facilitated this transaction.
         /// @dev Reputation points accruer.
         address relayerAddress;
+        address token;
+    }
+
+    // prettier-ignore
+    enum LockStatus {
+        Inexistent,     // 0 := Uninitialized Lock.
+        Active,         // 1 := Valid Lock.
+        Expired,        // 2 := Expired Lock.
+        Released        // 3 := Already released Lock.
     }
 }

contracts/EventAndErrors.sol

@@ -7,33 +7,34 @@ interface EventAndErrors {
 
     event DepositAdded(
         address indexed seller,
-        uint256 depositID,
+        // uint256 depositID,
         address token,
         uint256 amount
     );
-    event DepositClosed(
+    event ValidSet(
         address indexed seller,
-        uint256 depositID
+        address token,
+        bool state
     );
     event DepositWithdrawn(
         address indexed seller,
-        uint256 depositID,
+        address token,
         uint256 amount
     );
     event LockAdded(
         address indexed buyer,
-        bytes32 indexed lockID,
+        uint256 indexed lockID,
-        uint256 depositID,
+        uint256 seller,
         uint256 amount
     );
     event LockReleased(
         address indexed buyer, 
-        bytes32 lockId,
+        uint256 lockId,
         uint256 amount
     );
     event LockReturned(
         address indexed buyer, 
-        bytes32 lockId
+        uint256 lockId
     );
     event FundsWithdrawn(
         address owner, 
@@ -104,4 +105,13 @@ interface EventAndErrors {
     /// @dev Reverts on an expired lock.
     /// @dev 0xf6fafba0
     error LockExpired();
+    
+    /// @dev 0xce3a3d37
+    error DecOverflow();
+    /// @dev 0xf3fb0eb9
+    error MaxBalExceeded();
+    /// @dev 0x6a3bc53e
+    error EmptyPixTarget();
+    /// @dev 0x87138d5c
+    error NotInitialized();
 }

contracts/lib/utils/Counters.sol

@@ -1,52 +0,0 @@
-// SPDX-License-Identifier: MIT
-
-pragma solidity >=0.8.4;
-
-/// @title Counters
-/// @author buf0t9
-/// @author Modified from OpenZeppelin Contracts
-/// (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol)
-/// @notice Provides counters that can only be incremented, decrementedor reset.
-/// @dev Include with `using Counters for Counters.Counter;`
-library Counters {
-    // solhint-disable no-inline-assembly
-    struct Counter {
-        /// @dev Interactions must be restricted to the library's function.
-        uint256 _val; // := 0
-    }
-
-    /// @dev 0xce3a3d37
-    error DecOverflow();
-
-    function current(
-        Counter storage counter
-    ) internal view returns (uint256 _val) {
-        assembly {
-            _val := sload(counter.slot)
-        }
-    }
-
-    function increment(Counter storage counter) internal {
-        assembly {
-            let _val := sload(counter.slot)
-            sstore(counter.slot, add(_val, 0x01))
-        }
-    }
-
-    function decrement(Counter storage counter) internal {
-        assembly {
-            let _val := sload(counter.slot)
-            if or(iszero(_val), lt(_val, 0x00)) {
-                mstore(0x00, 0xce3a3d37)
-                revert(0x1c, 0x04)
-            }
-            sstore(counter.slot, sub(_val, 0x01))
-        }
-    }
-
-    function reset(Counter storage counter) internal {
-        assembly {
-            sstore(counter.slot, 0)
-        }
-    }
-}

contracts/lib/utils/Multicall.sol

@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.8.4;
+
+/// @title Multicall.
+/// @notice Contract that batches view function calls and aggregates their results.
+/// @author Adapted from Makerdao's Multicall2 (https://github.com/makerdao/multicall/blob/master/src/Multicall2.sol).
+
+contract Multicall {
+    /// @dev 0x
+    error CallFailed(string reason);
+
+    struct Call {
+        address target;
+        bytes callData;
+    }
+    struct Result {
+        bool success;
+        bytes returnData;
+    }
+
+    //prettier-ignore
+    constructor(/*  */) payable {/*  */}
+
+    function mtc1(Call[] calldata calls)
+        external
+        returns (uint256, bytes[] memory)
+    {
+        uint256 bn = block.number;
+        uint256 len = calls.length;
+        bytes[] memory res = new bytes[](len);
+        uint256 j;
+
+        while (j < len) {
+            (bool success, bytes memory ret) = calls[j]
+                .target
+                .call(calls[j].callData);
+            if (!success) {
+                if (ret.length < 0x44) revert CallFailed("");
+                assembly {
+                    ret := add(ret, 0x04)
+                }
+                revert CallFailed({
+                    reason: abi.decode(ret, (string))
+                });
+            }
+            res[j] = ret;
+            ++j;
+        }
+        return (bn, res);
+    }
+
+    function mtc2(Call[] calldata calls)
+        external
+        returns (
+            uint256,
+            bytes32,
+            Result[] memory
+        )
+    {
+        uint256 bn = block.number;
+        // µ 0 s [0] ≡ P(IHp , µs [0], 0) ∴ P is the hash of a block of a particular number, up to a maximum age.
+        // 0 is left on the stack if the looked for `block.number` is >= to the current `block.number` or more than 256
+        // blocks behind the current block (Yellow Paper, p. 33, https://ethereum.github.io/yellowpaper/paper.pdf).
+        bytes32 bh = blockhash(
+            bn /* - 1 */
+        );
+        uint256 len = calls.length;
+        Result[] memory res = new Result[](len);
+        uint256 i;
+        for (i; i < len; ) {
+            (bool success, bytes memory ret) = calls[i]
+                .target
+                .call(calls[i].callData);
+
+            res[i] = Result(success, ret);
+            ++i;
+        }
+        return (bn, bh, res);
+    }
+}

contracts/lib/utils/SafeTransferLib.sol

@@ -114,46 +114,4 @@ library SafeTransferLib {
 
         require(success, "TRANSFER_FAILED");
     }
-
-    function safeApprove(
-        ERC20 token,
-        address to,
-        uint256 amount
-    ) internal {
-        bool success;
-
-        assembly {
-            // We'll write our calldata to this slot below, but restore it later.
-            let memPointer := mload(0x40)
-
-            // Write the abi-encoded calldata into memory, beginning with the function selector.
-            mstore(
-                0,
-                0x095ea7b300000000000000000000000000000000000000000000000000000000
-            )
-            mstore(4, to) // Append the "to" argument.
-            mstore(36, amount) // Append the "amount" argument.
-
-            success := and(
-                // Set success to whether the call reverted, if not we check it either
-                // returned exactly 1 (can't just be non-zero data), or had no return data.
-                or(
-                    and(
-                        eq(mload(0), 1),
-                        gt(returndatasize(), 31)
-                    ),
-                    iszero(returndatasize())
-                ),
-                // We use 68 because that's the total length of our calldata (4 + 32 * 2)
-                // Counterintuitively, this call() must be positioned after the or() in the
-                // surrounding and() because and() evaluates its arguments from right to left.
-                call(gas(), token, 0, 0, 68, 0, 32)
-            )
-
-            mstore(0x60, 0) // Restore the zero slot to zero.
-            mstore(0x40, memPointer) // Restore the memPointer.
-        }
-
-        require(success, "APPROVE_FAILED");
-    }
 }

contracts/p2pix.sol

@@ -9,7 +9,6 @@ pragma solidity 0.8.9;
 ///
 
 import { Owned } from "./lib/auth/Owned.sol";
-import { Counters } from "./lib/utils/Counters.sol";
 import { ERC20, SafeTransferLib } from "./lib/utils/SafeTransferLib.sol";
 import { IReputation } from "./lib/interfaces/IReputation.sol";
 import { MerkleProofLib as Merkle } from "./lib/utils/MerkleProofLib.sol";
@@ -24,36 +23,55 @@ contract P2PIX is
 {
     // solhint-disable use-forbidden-name
     // solhint-disable no-inline-assembly
+    // solhint-disable no-empty-blocks
 
-    using Counters for Counters.Counter;
-    using DT for DT.Deposit;
     using DT for DT.Lock;
+    using DT for DT.LockStatus;
+
+    /// ███ Constants ██████████████████████████████████████████████████████████
+
+    /// @dev The bitmask of `sellerBalance` entry.
+    uint256 private constant BITMASK_SB_ENTRY = (1 << 94) - 1;
+    /// @dev The bit position of `pixTarget` in `sellerBalance`.
+    uint256 private constant BITPOS_PIXTARGET = 95;
+    /// @dev The bit position of `valid` in `sellerBalance`.
+    uint256 private constant BITPOS_VALID = 255;
+    /// @dev The bitmask of all 256 bits of `sellerBalance` except for the last one.
+    uint256 private constant BITMASK_VALID = (1 << 255) - 1;
+    /// @dev The scalar of BRZ token.
+    uint256 public constant WAD = 1e18;
 
     /// ███ Storage ████████████████████████████████████████████████████████████
 
     IReputation public reputation;
-    Counters.Counter public depositCount;
 
     /// @dev Default blocks that lock will hold tokens.
     uint256 public defaultLockBlocks;
-    /// @dev The scalar of BRZ token.
+    uint256 public lockCounter;
-    uint256 public constant WAD = 1e18;
 
+    /// @dev List of Locks.
+    mapping(uint256 => DT.Lock) public mapLocks;
+    /// @dev Seller casted to key => Seller's allowlist merkleroot.
+    mapping(uint256 => bytes32) public sellerAllowList;
     /// @dev Stores an relayer's last computed credit.
     mapping(uint256 => uint256) public userRecord;
     /// @dev List of valid Bacen signature addresses
     mapping(uint256 => bool) public validBacenSigners;
-    /// @dev Seller list of deposits
-    mapping(uint256 => DT.Deposit) public mapDeposits;
-    /// @dev List of Locks.
-    mapping(bytes32 => DT.Lock) public mapLocks;
     /// @dev List of Pix transactions already signed.
     mapping(bytes32 => bool) public usedTransactions;
-    /// @dev Seller casted to key => Seller's allowlist merkleroot.
-    mapping(uint256 => bytes32) public sellerAllowList;
     /// @dev Tokens allowed to serve as the underlying amount of a deposit.
     mapping(ERC20 => bool) public allowedERC20s;
 
+    // BITS LAYOUT
+    // `uint96`  [0...94]   := balance
+    // `uint160` [95...254] := pixTarget
+    // `bool`    [255]       := valid
+
+    /// @dev `balance` max. value = 10**26.
+    /// @dev `pixTarget` keys are restricted to 160 bits.
+    mapping(uint256 => mapping(ERC20 => uint256))
+        public sellerBalance;
+
     /// ███ Constructor ████████████████████████████████████████████████████████
 
     constructor(
@@ -76,27 +94,25 @@ contract P2PIX is
     /// @dev Seller needs to send his tokens to the P2PIX smart contract.
     /// @param _pixTarget Pix key destination provided by the offer's seller.
     /// @param allowlistRoot Optional allow list merkleRoot update `bytes32` value.
-    /// @return depositID The `uint256` return value provided
     /// as the deposit identifier.
     /// @dev Function sighash: 0xbfe07da6.
     function deposit(
         address _token,
-        uint256 _amount,
+        uint96 _amount,
-        string calldata _pixTarget,
+        uint160 _pixTarget,
+        bool _valid,
         bytes32 allowlistRoot
-    ) public returns (uint256 depositID) {
+    ) public {
         ERC20 t = ERC20(_token);
+        uint256 k = _castAddrToKey(msg.sender);
+
+        if (_pixTarget == 0) revert EmptyPixTarget();
         if (!allowedERC20s[t]) revert TokenDenied();
+        uint256 _sellerBalance = sellerBalance[k][t];
 
-        (depositID) = _encodeDepositID();
+        uint256 currBal = _sellerBalance & BITMASK_SB_ENTRY;
-
+        if ((currBal + _amount) > 1e8 ether)
-        DT.Deposit memory d = DT.Deposit({
+            revert MaxBalExceeded();
-            remaining: _amount,
-            pixTarget: _pixTarget,
-            seller: msg.sender,
-            token: _token,
-            valid: true
-        });
 
         setReentrancyGuard();
 
@@ -104,8 +120,19 @@ contract P2PIX is
             setRoot(msg.sender, allowlistRoot);
         }
 
-        mapDeposits[depositID] = d;
+        uint256 amountCasted;
-        depositCount.increment();
+        uint256 pixTargetCasted;
+        uint256 validCasted;
+        (
+            amountCasted,
+            pixTargetCasted,
+            validCasted
+        ) = _castToUint(_amount, _pixTarget, _valid);
+
+        sellerBalance[k][t] =
+            (currBal + amountCasted) |
+            (pixTargetCasted << BITPOS_PIXTARGET) |
+            (validCasted << BITPOS_VALID);
 
         SafeTransferLib.safeTransferFrom(
             t,
@@ -116,26 +143,31 @@ contract P2PIX is
 
         clearReentrancyGuard();
 
-        emit DepositAdded(
+        emit DepositAdded(msg.sender, _token, _amount);
-            msg.sender,
-            depositID,
-            _token,
-            _amount
-        );
     }
 
     /// @notice Enables seller to invalidate future
     /// locks made to his/her token offering order.
     /// @dev This function does not affect any ongoing active locks.
     /// @dev Function sighash: 0x72fada5c.
+    function setValidState(ERC20 token, bool state) public {
+        uint256 key = _castAddrToKey(msg.sender);
+        uint256 _sellerBalance = sellerBalance[key][token];
 
-    function cancelDeposit(uint256 depositID) public {
+        if (_sellerBalance != 0) {
-        _onlySeller(depositID);
+            uint256 _valid;
-        mapDeposits[depositID].valid = false;
+            assembly {
-        emit DepositClosed(
+                _valid := state
-            mapDeposits[depositID].seller,
+            }
-            depositID
+
-        );
+            _sellerBalance =
+                (_sellerBalance & BITMASK_VALID) |
+                (_valid << BITPOS_VALID);
+
+            sellerBalance[key][token] = _sellerBalance;
+
+            emit ValidSet(msg.sender, address(token), state);
+        } else revert NotInitialized();
     }
 
     /// @notice Public method designed to lock an remaining amount of
@@ -158,57 +190,70 @@ contract P2PIX is
     /// @return lockID The `bytes32` value returned as the lock identifier.
     /// @dev Function sighash: 0x03aaf306.
     function lock(
-        uint256 _depositID,
+        address _seller,
+        address _token,
         address _buyerAddress,
         address _relayerTarget,
         uint256 _relayerPremium,
         uint256 _amount,
         bytes32[] calldata merkleProof,
-        bytes32[] calldata expiredLocks
+        uint256[] calldata expiredLocks
-    ) public nonReentrant returns (bytes32 lockID) {
+    ) public nonReentrant returns (uint256) {
         unlockExpired(expiredLocks);
-        DT.Deposit storage d = mapDeposits[_depositID];
 
-        if (!d.valid) revert InvalidDeposit();
+        ERC20 t = ERC20(_token);
-        if (d.remaining < _amount) revert NotEnoughTokens();
+        if (!getValid(_seller, t)) revert InvalidDeposit();
 
-        (lockID) = _encodeLockID(
+        uint256 bal = getBalance(_seller, t);
-            _depositID,
+        if (bal < _amount) revert NotEnoughTokens();
+
+        uint256 k = _castAddrToKey(_seller);
+
+        uint256 cCounter = lockCounter + 1;
+
+        if (
+            mapLocks[cCounter].expirationBlock >= block.number
+        ) revert NotExpired();
+
+        DT.Lock memory l = DT.Lock(
+            k,
+            cCounter,
+            _relayerPremium,
             _amount,
-            _buyerAddress
+            (block.number + defaultLockBlocks),
+            uint160(sellerBalance[k][t] >> BITPOS_PIXTARGET),
+            _buyerAddress,
+            _relayerTarget,
+            msg.sender,
+            address(t)
         );
 
-        DT.Lock memory l = DT.Lock({
-            depositID: _depositID,
-            relayerPremium: _relayerPremium,
-            amount: _amount,
-            expirationBlock: (block.number +
-                defaultLockBlocks),
-            buyerAddress: _buyerAddress,
-            relayerTarget: _relayerTarget,
-            relayerAddress: msg.sender
-        });
-
         if (merkleProof.length != 0) {
             merkleVerify(
                 merkleProof,
-                sellerAllowList[_castAddrToKey(d.seller)],
+                sellerAllowList[k],
                 msg.sender
             );
 
-            _addLock(lockID, l, d);
+            _addLock(bal, _amount, cCounter, l, t, k);
+
+            lockCounter++;
 
             // Halt execution and output `lockID`.
-            return lockID;
+            return cCounter;
         } else {
             if (l.amount <= 1e2 ether) {
-                _addLock(lockID, l, d);
+                _addLock(bal, _amount, cCounter, l, t, k);
+
+                lockCounter++;
+
                 // Halt execution and output `lockID`.
-                return lockID;
+                return cCounter;
             } else {
                 uint256 userCredit = userRecord[
                     _castAddrToKey(msg.sender)
                 ];
+
                 uint256 spendLimit;
                 (spendLimit) = _limiter(userCredit / WAD);
 
@@ -217,9 +262,12 @@ contract P2PIX is
                     l.amount > 1e6 ether
                 ) revert AmountNotAllowed();
 
-                _addLock(lockID, l, d);
+                _addLock(bal, _amount, cCounter, l, t, k);
+
+                lockCounter++;
+
                 // Halt execution and output `lockID`.
-                return lockID;
+                return cCounter;
             }
         }
     }
@@ -235,10 +283,10 @@ contract P2PIX is
     ///  In case of they differing:
     /// - `lock` caller gets accrued with `l.amount` as userRecord credit;
     /// - `release` caller gets accrued with `l.relayerPremium` as userRecord credit;
-    /// @param _relayerTarget Target address entitled to the `relayerPremim`.
+    /// @param _relayerTarget Target address entitled to the `relayerPremium`.
     /// @dev Function sighash: 0x4e1389ed.
     function release(
-        bytes32 lockID,
+        uint256 lockID,
         address _relayerTarget,
         bytes32 pixTimestamp,
         bytes32 r,
@@ -251,10 +299,9 @@ contract P2PIX is
         if (l.expirationBlock < block.number)
             revert LockExpired();
 
-        DT.Deposit storage d = mapDeposits[l.depositID];
         bytes32 message = keccak256(
             abi.encodePacked(
-                d.pixTarget,
+                l.pixTarget,
                 l.amount,
                 pixTimestamp
             )
@@ -276,7 +323,7 @@ contract P2PIX is
         if (!validBacenSigners[signer])
             revert InvalidSigner();
 
-        ERC20 t = ERC20(d.token);
+        ERC20 t = ERC20(l.token);
 
         // We cache values before zeroing them out.
         uint256 lockAmount = l.amount;
@@ -334,7 +381,7 @@ contract P2PIX is
     /// @dev For each successfull unexpired lock recovered,
     /// `userRecord[_castAddrToKey(l.relayerAddress)]` is decreased by half of its value.
     /// @dev Function sighash: 0x8e2749d6.
-    function unlockExpired(bytes32[] calldata lockIDs)
+    function unlockExpired(uint256[] calldata lockIDs)
         public
     {
         uint256 i;
@@ -345,7 +392,16 @@ contract P2PIX is
 
             _notExpired(l);
 
-            mapDeposits[l.depositID].remaining += l.amount;
+            uint256 _sellerBalance = sellerBalance[
+                l.sellerKey
+            ][ERC20(l.token)] & BITMASK_SB_ENTRY;
+
+            if ((_sellerBalance + l.amount) > 1e8 ether)
+                revert MaxBalExceeded();
+
+            sellerBalance[l.sellerKey][ERC20(l.token)] += l
+                .amount;
+
             l.amount = 0;
 
             uint256 userKey = _castAddrToKey(
@@ -380,28 +436,36 @@ contract P2PIX is
     /// tokens from expired deposits.
     /// @dev Function sighash: 0x36317972.
     function withdraw(
-        uint256 depositID,
+        ERC20 token,
-        bytes32[] calldata expiredLocks
+        uint256 amount,
+        uint256[] calldata expiredLocks
     ) public nonReentrant {
-        _onlySeller(depositID);
         unlockExpired(expiredLocks);
 
-        DT.Deposit storage d = mapDeposits[depositID];
+        if (getValid(msg.sender, token) == true) {
-
+            setValidState(token, false);
-        if (d.valid == true) {
-            cancelDeposit(depositID);
         }
 
-        ERC20 token = ERC20(d.token);
+        uint256 key = _castAddrToKey(msg.sender);
-
+        _decBal(
-        // Withdraw remaining tokens from mapDeposit[depositID]
+            (sellerBalance[key][token] & BITMASK_SB_ENTRY),
-        uint256 amount = d.remaining;
+            amount,
-        d.remaining = 0;
+            token,
+            key
+        );
 
         // safeTransfer tokens to seller
-        SafeTransferLib.safeTransfer(token, d.seller, amount);
+        SafeTransferLib.safeTransfer(
+            token,
+            msg.sender,
+            amount
+        );
 
-        emit DepositWithdrawn(msg.sender, depositID, amount);
+        emit DepositWithdrawn(
+            msg.sender,
+            address(token),
+            amount
+        );
     }
 
     function setRoot(address addr, bytes32 merkleroot)
@@ -484,7 +548,7 @@ contract P2PIX is
             let tLoc := add(_tokens, 0x20)
             let sLoc := add(_states, 0x20)
             for {
-                let end := add(tLoc, mul(tLen, 0x20))
+                let end := add(tLoc, shl(5, tLen))
             } iszero(eq(tLoc, end)) {
                 tLoc := add(tLoc, 0x20)
                 sLoc := add(sLoc, 0x20)
@@ -511,14 +575,6 @@ contract P2PIX is
     // solhint-disable-next-line no-empty-blocks
     receive() external payable {}
 
-    /// @notice Access control private view method that
-    /// performs auth check on an deposit's seller.
-    /// @dev Function sighash: 0x4125a4d9.
-    function _onlySeller(uint256 _depositID) private view {
-        if (mapDeposits[_depositID].seller != msg.sender)
-            revert OnlySeller();
-    }
-
     /// @notice Private view auxiliar logic that reverts
     /// on a not expired lock passed as argument of the function.
     /// @dev Called exclusively by the `unlockExpired` method.
@@ -529,55 +585,26 @@ contract P2PIX is
         if (_l.amount == 0) revert AlreadyReleased();
     }
 
-    /// @notice Internal view auxiliar logic that returns a new valid `_depositID`.
-    /// @dev It reverts on an already valid counter (`uint256`) value.
-    /// @dev Function sighash: 0xdb51d697.
-    function _encodeDepositID()
-        internal
-        view
-        returns (uint256 _depositID)
-    {
-        (_depositID) = depositCount.current();
-    }
-
     function _addLock(
-        bytes32 _lockID,
+        uint256 _bal,
+        uint256 _amount,
+        uint256 _lockID,
         DT.Lock memory _l,
-        DT.Deposit storage _d
+        ERC20 _t,
+        uint256 _k
     ) internal {
         mapLocks[_lockID] = _l;
-        _d.remaining -= _l.amount;
+
+        _decBal(_bal, _amount, _t, _k);
 
         emit LockAdded(
             _l.buyerAddress,
             _lockID,
-            _l.depositID,
+            _l.sellerKey,
             _l.amount
         );
     }
 
-    /// @notice Private view auxiliar logic that encodes/returns
-    /// the `bytes32` identifier of an lock.
-    /// @dev reverts on a not expired lock with the same ID passed
-    /// as argument of the function.
-    /// @dev Called exclusively by the `lock` method.
-    /// @dev Function sighash: 0x3fc5fb52.
-    function _encodeLockID(
-        uint256 _depositID,
-        uint256 _amount,
-        address _buyerAddress
-    ) private view returns (bytes32 _lockID) {
-        _lockID = keccak256(
-            abi.encodePacked(
-                _depositID,
-                _amount,
-                _buyerAddress
-            )
-        );
-        if (mapLocks[_lockID].expirationBlock >= block.number)
-            revert NotExpired();
-    }
-
     function merkleVerify(
         bytes32[] calldata _merkleProof,
         bytes32 root,
@@ -633,6 +660,207 @@ contract P2PIX is
         }
     }
 
+    function _castToUint(
+        uint96 _amount,
+        uint160 _pixTarget,
+        bool _valid
+    )
+        private
+        pure
+        returns (
+            uint256 _amountCasted,
+            uint256 _pixTargetCasted,
+            uint256 _validCasted
+        )
+    {
+        assembly {
+            _amountCasted := _amount
+            _pixTargetCasted := _pixTarget
+            _validCasted := _valid
+        }
+    }
+
+    function _decBal(
+        uint256 _bal,
+        uint256 _amount,
+        ERC20 _t,
+        uint256 _k
+    ) private {
+        assembly {
+            if iszero(
+                iszero(
+                    or(
+                        iszero(_bal),
+                        lt(sub(_bal, _amount), 0x0)
+                    )
+                )
+            ) {
+                // DecOverflow()
+                mstore(0x00, 0xce3a3d37)
+                revert(0x1c, 0x04)
+            }
+        }
+
+        // we can directly dec from packed uint entry value
+        sellerBalance[_k][_t] -= _amount;
+    }
+
+    function getBalance(address seller, ERC20 token)
+        public
+        view
+        returns (uint256 bal)
+    {
+        // bal =
+        // sellerBalance[_castAddrToKey(seller)][token] &
+        // BITMASK_SB_ENTRY;
+        assembly {
+            for {
+                /*  */
+            } iszero(0x0) {
+                /*  */
+            } {
+                mstore(0x00, shl(0xC, seller))
+                mstore(0x20, sellerBalance.slot)
+                let sbkslot := keccak256(0x00, 0x40)
+                mstore(0x00, token)
+                mstore(0x20, sbkslot)
+                bal := and(
+                    BITMASK_SB_ENTRY,
+                    sload(keccak256(0x00, 0x40))
+                )
+                break
+            }
+        }
+    }
+
+    function getValid(address seller, ERC20 token)
+        public
+        view
+        returns (bool valid)
+    {
+        // uint256 b = sellerBalance[
+        // _castAddrToKey(seller)
+        // ][token];
+        // ] >> BITPOS_VALID) & BITMASK_SB_ENTRY;
+        assembly {
+            for {
+                /*  */
+            } iszero(0x0) {
+                /*  */
+            } {
+                mstore(0x00, shl(0xC, seller))
+                mstore(0x20, sellerBalance.slot)
+                let sbkslot := keccak256(0x00, 0x40)
+                mstore(0x00, token)
+                mstore(0x20, sbkslot)
+                valid := and(
+                    BITMASK_SB_ENTRY,
+                    shr(
+                        BITPOS_VALID,
+                        sload(keccak256(0x00, 0x40))
+                    )
+                )
+                break
+            }
+        }
+    }
+
+    function getPixTarget(address seller, ERC20 token)
+        public
+        view
+        returns (uint160 pixTarget)
+    {
+        // pixTarget = uint160(
+        // sellerBalance[_castAddrToKey(seller)][token] >>
+        // BITPOS_PIXTARGET
+        // );
+        assembly {
+            for {
+                /*  */
+            } iszero(0) {
+                /*  */
+            } {
+                mstore(0, shl(12, seller))
+                mstore(32, sellerBalance.slot)
+                let sbkslot := keccak256(0, 64)
+                mstore(0, token)
+                mstore(32, sbkslot)
+                pixTarget := shr(
+                    BITPOS_PIXTARGET,
+                    sload(keccak256(0, 64))
+                )
+                break
+            }
+        }
+    }
+
+    function getBalances(
+        address[] memory sellers,
+        ERC20 token
+    ) external view returns (uint256[] memory) {
+        uint256 j;
+        uint256 len = sellers.length;
+        uint256[] memory balances = new uint256[](len);
+        while (j < len) {
+            uint256 bal = getBalance(sellers[j], token);
+            balances[j] = bal;
+            unchecked {
+                ++j;
+            }
+        }
+
+        return balances;
+    }
+
+    /// @notice External getter that returns the status of a lockIDs array.
+    /// @dev Call will not revert if provided with an empty array as parameter.
+    /// @dev Function sighash: 0x49ef8448
+    function getLocksStatus(uint256[] memory ids)
+        external
+        view
+        returns (uint256[] memory, DT.LockStatus[] memory)
+    {
+        if (ids.length == 0) {
+            uint256[] memory null1 = new uint256[](0);
+            DT.LockStatus[]
+                memory null2 = new DT.LockStatus[](0);
+            return (null1, null2);
+        }
+
+        uint256 c;
+        uint256 len = ids.length;
+
+        uint256[] memory sortedIDs = new uint256[](len);
+        DT.LockStatus[] memory status = new DT.LockStatus[](
+            len
+        );
+        unchecked {
+            for (c; c < len; ) {
+                if (mapLocks[ids[c]].sellerKey == 0x0) {
+                    sortedIDs[c] = ids[c];
+                    status[c] = type(DT.LockStatus).min;
+                    ++c;
+                } else if (mapLocks[ids[c]].amount == 0x0) {
+                    sortedIDs[c] = ids[c];
+                    status[c] = type(DT.LockStatus).max;
+                    ++c;
+                } else if (
+                    mapLocks[ids[c]].expirationBlock <
+                    block.number
+                ) {
+                    sortedIDs[c] = ids[c];
+                    status[c] = DT.LockStatus.Expired;
+                    ++c;
+                } else {
+                    sortedIDs[c] = ids[c];
+                    status[c] = DT.LockStatus.Active;
+                    ++c;
+                }
+            }
+        }
+        return (sortedIDs, status);
+    }
+
     /// @notice Public method that handles `address`
     /// to `uint256` safe type casting.
     /// @dev Function sighash: 0x4b2ae980.
@@ -641,6 +869,20 @@ contract P2PIX is
         pure
         returns (uint256 _key)
     {
-        _key = uint256(uint160(address(_addr))) << 12;
+        // _key = uint256(uint160(address(_addr))) << 12;
+        assembly {
+            _key := shl(12, _addr)
+        }
+    }
+
+    function _castKeyToAddr(uint256 _key)
+        public
+        pure
+        returns (address _addr)
+    {
+        // _addr = address(uint160(uint256(_key >> 12)));
+        assembly {
+            _addr := shr(12, _key)
+        }
     }
 }

deploys/goerli.json

@@ -3,6 +3,6 @@
     "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
     "0x70997970C51812dc3A010C7d01b50e0d17dc79C8"
   ],
-  "p2pix": "0x5f3EFA9A90532914545CEf527C530658af87e196",
+  "p2pix": "0x2414817FF64A114d91eCFA16a834d3fCf69103d4",
-  "token": "0x294003F602c321627152c6b7DED3EAb5bEa853Ee"
+  "token": "0x4A2886EAEc931e04297ed336Cc55c4eb7C75BA00"
 }

deploys/localhost.json

@@ -3,6 +3,6 @@
     "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
     "0x70997970C51812dc3A010C7d01b50e0d17dc79C8"
   ],
-  "p2pix": "0x37c856F4d5bC2597da60f607b1335738468453F3",
+  "p2pix": "0xC86042E9F2977C62Da8c9dDF7F9c40fde4796A29",
-  "token": "0x294003F602c321627152c6b7DED3EAb5bEa853Ee"
+  "token": "0xD38D6367f452D097ccBfDe4490b7de570B6A72Db"
 }

deploys/polygon-mumbai.json

@@ -3,6 +3,6 @@
     "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
     "0x70997970C51812dc3A010C7d01b50e0d17dc79C8"
   ],
-  "p2pix": "0x5f3EFA9A90532914545CEf527C530658af87e196",
+  "p2pix": "0x4A2886EAEc931e04297ed336Cc55c4eb7C75BA00",
-  "token": "0x294003F602c321627152c6b7DED3EAb5bEa853Ee"
+  "token": "0xC86042E9F2977C62Da8c9dDF7F9c40fde4796A29"
 }

hardhat.config.ts

@@ -34,7 +34,7 @@ const chainIds = {
   hardhat: 31337,
   mainnet: 1,
   sepolia: 11155111,
-  goerli : 5,
+  goerli: 5,
   "polygon-mumbai": 80001,
 };
 
@@ -44,8 +44,10 @@ function getChainConfig(
   let jsonRpcUrl: string;
   switch (chain) {
     case "polygon-mumbai":
-    jsonRpcUrl = "https://polygon-mumbai.g.alchemy.com/v2/" + alchemyApiKey;
+      jsonRpcUrl =
-    break;
+        "https://polygon-mumbai.g.alchemy.com/v2/" +
+        alchemyApiKey;
+      break;
     default:
       jsonRpcUrl =
         "https://" + chain + ".infura.io/v3/" + infuraApiKey;
@@ -121,12 +123,14 @@ const config: HardhatUserConfig = {
   solidity: {
     version: "0.8.9",
     settings: {
+      // viaIR: true,
       metadata: {
         bytecodeHash: "none",
       },
       optimizer: {
         enabled: true,
-        runs: 2000,
+        // max val = 4_294_967_295
+        runs: 20_000,
       },
     },
   },

package.json

@@ -1,6 +1,6 @@
 {
   "name": "p2pix-smart-contracts",
-  "version": "1.0.0",
+  "version": "2.0.0",
   "description": "Repository for P2Pix EVM contracts to be imported by the project.",
   "homepage": "https://github.com/doiim/p2pix-smart-contracts#readme",
   "author": "Filipe Soccol (doiim)",
@@ -64,7 +64,7 @@
     "fs-extra": "^10.1.0",
     "hardhat": "^2.12.2",
     "hardhat-gas-reporter": "^1.0.9",
-    "hardhat-tracer": "^1.2.0",
+    "hardhat-tracer": "beta",
     "husky": "^8.0.1",
     "keccak256": "^1.0.6",
     "lint-staged": "^13.0.3",

scripts/1-deploy-mockToken.ts

@@ -3,11 +3,10 @@ import "@nomiclabs/hardhat-etherscan";
 import { BigNumber } from "ethers";
 import * as fs from "fs";
 import { ethers, network } from "hardhat";
+import hre from "hardhat";
 
 import { Deploys } from "../test/utils/fixtures";
 
-import hre from "hardhat";
-
 let deploysJson: Deploys;
 const supply: BigNumber = ethers.utils.parseEther("20000000");
 

scripts/2-deploy-p2pix.ts

@@ -2,11 +2,10 @@ import "@nomiclabs/hardhat-ethers";
 import "@nomiclabs/hardhat-etherscan";
 import * as fs from "fs";
 import { ethers, network } from "hardhat";
+import hre from "hardhat";
 
 import { Deploys } from "../test/utils/fixtures";
 
-import hre from "hardhat";
-
 let deploysJson: Deploys;
 
 const main = async () => {
@@ -27,8 +26,13 @@ const main = async () => {
   const Reputation = await ethers.getContractFactory(
     "Reputation",
   );
+  const Multicall = await ethers.getContractFactory(
+    "Multicall",
+  );
   const reputation = await Reputation.deploy();
   await reputation.deployed();
+  const mutlicall = await Multicall.deploy();
+  await mutlicall.deployed();
 
   const P2PIX = await ethers.getContractFactory("P2PIX");
   const p2pix = await P2PIX.deploy(
@@ -42,6 +46,8 @@ const main = async () => {
 
   deploysJson.p2pix = p2pix.address;
   console.log("🚀 P2PIX Deployed:", p2pix.address);
+  console.log("🌠 Reputation Deployed:", reputation.address);
+  console.log("🛰 Multicall Deployed:", mutlicall.address);
   await p2pix.deployTransaction.wait(6);
 
   fs.writeFileSync(
@@ -53,15 +59,22 @@ const main = async () => {
   //verify
   await hre.run("verify:verify", {
     address: p2pix.address,
-    constructorArguments: 
+    constructorArguments: [
-    [
+      10,
-      10, 
+      deploysJson.signers,
-      deploysJson.signers, 
       reputation.address,
       [deploysJson.token],
       [true],
     ],
   });
+  await hre.run("verify:verify", {
+    address: reputation.address,
+    constructorArguments: [],
+  });
+  await hre.run("verify:verify", {
+    address: mutlicall.address,
+    constructorArguments: [],
+  });
 };
 
 main()

src/types/EventAndErrors.ts

@@ -1,7 +1,13 @@
 /* Autogenerated file. Do not edit manually. */
 /* tslint:disable */
 /* eslint-disable */
-import type { BaseContract, BigNumber, BytesLike, Signer, utils } from "ethers";
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  Signer,
+  utils,
+} from "ethers";
 import type { EventFragment } from "@ethersproject/abi";
 import type { Listener, Provider } from "@ethersproject/providers";
 import type {
@@ -17,22 +23,21 @@ export interface EventAndErrorsInterface extends utils.Interface {
 
   events: {
     "AllowedERC20Updated(address,bool)": EventFragment;
-    "DepositAdded(address,uint256,address,uint256)": EventFragment;
+    "DepositAdded(address,address,uint256)": EventFragment;
-    "DepositClosed(address,uint256)": EventFragment;
+    "DepositWithdrawn(address,address,uint256)": EventFragment;
-    "DepositWithdrawn(address,uint256,uint256)": EventFragment;
     "FundsWithdrawn(address,uint256)": EventFragment;
-    "LockAdded(address,bytes32,uint256,uint256)": EventFragment;
+    "LockAdded(address,uint256,uint256,uint256)": EventFragment;
     "LockBlocksUpdated(uint256)": EventFragment;
-    "LockReleased(address,bytes32,uint256)": EventFragment;
+    "LockReleased(address,uint256,uint256)": EventFragment;
-    "LockReturned(address,bytes32)": EventFragment;
+    "LockReturned(address,uint256)": EventFragment;
     "ReputationUpdated(address)": EventFragment;
     "RootUpdated(address,bytes32)": EventFragment;
+    "ValidSet(address,address,bool)": EventFragment;
     "ValidSignersUpdated(address[])": EventFragment;
   };
 
   getEvent(nameOrSignatureOrTopic: "AllowedERC20Updated"): EventFragment;
   getEvent(nameOrSignatureOrTopic: "DepositAdded"): EventFragment;
-  getEvent(nameOrSignatureOrTopic: "DepositClosed"): EventFragment;
   getEvent(nameOrSignatureOrTopic: "DepositWithdrawn"): EventFragment;
   getEvent(nameOrSignatureOrTopic: "FundsWithdrawn"): EventFragment;
   getEvent(nameOrSignatureOrTopic: "LockAdded"): EventFragment;
@@ -41,6 +46,7 @@ export interface EventAndErrorsInterface extends utils.Interface {
   getEvent(nameOrSignatureOrTopic: "LockReturned"): EventFragment;
   getEvent(nameOrSignatureOrTopic: "ReputationUpdated"): EventFragment;
   getEvent(nameOrSignatureOrTopic: "RootUpdated"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "ValidSet"): EventFragment;
   getEvent(nameOrSignatureOrTopic: "ValidSignersUpdated"): EventFragment;
 }
 
@@ -58,35 +64,23 @@ export type AllowedERC20UpdatedEventFilter =
 
 export interface DepositAddedEventObject {
   seller: string;
-  depositID: BigNumber;
   token: string;
   amount: BigNumber;
 }
 export type DepositAddedEvent = TypedEvent<
-  [string, BigNumber, string, BigNumber],
+  [string, string, 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;
+  token: string;
   amount: BigNumber;
 }
 export type DepositWithdrawnEvent = TypedEvent<
-  [string, BigNumber, BigNumber],
+  [string, string, BigNumber],
   DepositWithdrawnEventObject
 >;
 
@@ -106,12 +100,12 @@ export type FundsWithdrawnEventFilter = TypedEventFilter<FundsWithdrawnEvent>;
 
 export interface LockAddedEventObject {
   buyer: string;
-  lockID: string;
+  lockID: BigNumber;
-  depositID: BigNumber;
+  seller: BigNumber;
   amount: BigNumber;
 }
 export type LockAddedEvent = TypedEvent<
-  [string, string, BigNumber, BigNumber],
+  [string, BigNumber, BigNumber, BigNumber],
   LockAddedEventObject
 >;
 
@@ -130,11 +124,11 @@ export type LockBlocksUpdatedEventFilter =
 
 export interface LockReleasedEventObject {
   buyer: string;
-  lockId: string;
+  lockId: BigNumber;
   amount: BigNumber;
 }
 export type LockReleasedEvent = TypedEvent<
-  [string, string, BigNumber],
+  [string, BigNumber, BigNumber],
   LockReleasedEventObject
 >;
 
@@ -142,10 +136,10 @@ export type LockReleasedEventFilter = TypedEventFilter<LockReleasedEvent>;
 
 export interface LockReturnedEventObject {
   buyer: string;
-  lockId: string;
+  lockId: BigNumber;
 }
 export type LockReturnedEvent = TypedEvent<
-  [string, string],
+  [string, BigNumber],
   LockReturnedEventObject
 >;
 
@@ -173,6 +167,18 @@ export type RootUpdatedEvent = TypedEvent<
 
 export type RootUpdatedEventFilter = TypedEventFilter<RootUpdatedEvent>;
 
+export interface ValidSetEventObject {
+  seller: string;
+  token: string;
+  state: boolean;
+}
+export type ValidSetEvent = TypedEvent<
+  [string, string, boolean],
+  ValidSetEventObject
+>;
+
+export type ValidSetEventFilter = TypedEventFilter<ValidSetEvent>;
+
 export interface ValidSignersUpdatedEventObject {
   signers: string[];
 }
@@ -224,36 +230,25 @@ export interface EventAndErrors extends BaseContract {
       state?: PromiseOrValue<boolean> | null
     ): AllowedERC20UpdatedEventFilter;
 
-    "DepositAdded(address,uint256,address,uint256)"(
+    "DepositAdded(address,address,uint256)"(
       seller?: PromiseOrValue<string> | null,
-      depositID?: null,
       token?: null,
       amount?: null
     ): DepositAddedEventFilter;
     DepositAdded(
       seller?: PromiseOrValue<string> | null,
-      depositID?: null,
       token?: null,
       amount?: null
     ): DepositAddedEventFilter;
 
-    "DepositClosed(address,uint256)"(
+    "DepositWithdrawn(address,address,uint256)"(
       seller?: PromiseOrValue<string> | null,
-      depositID?: null
+      token?: 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,
+      token?: null,
       amount?: null
     ): DepositWithdrawnEventFilter;
 
@@ -263,23 +258,23 @@ export interface EventAndErrors extends BaseContract {
     ): FundsWithdrawnEventFilter;
     FundsWithdrawn(owner?: null, amount?: null): FundsWithdrawnEventFilter;
 
-    "LockAdded(address,bytes32,uint256,uint256)"(
+    "LockAdded(address,uint256,uint256,uint256)"(
       buyer?: PromiseOrValue<string> | null,
-      lockID?: PromiseOrValue<BytesLike> | null,
+      lockID?: PromiseOrValue<BigNumberish> | null,
-      depositID?: null,
+      seller?: null,
       amount?: null
     ): LockAddedEventFilter;
     LockAdded(
       buyer?: PromiseOrValue<string> | null,
-      lockID?: PromiseOrValue<BytesLike> | null,
+      lockID?: PromiseOrValue<BigNumberish> | null,
-      depositID?: null,
+      seller?: null,
       amount?: null
     ): LockAddedEventFilter;
 
     "LockBlocksUpdated(uint256)"(blocks?: null): LockBlocksUpdatedEventFilter;
     LockBlocksUpdated(blocks?: null): LockBlocksUpdatedEventFilter;
 
-    "LockReleased(address,bytes32,uint256)"(
+    "LockReleased(address,uint256,uint256)"(
       buyer?: PromiseOrValue<string> | null,
       lockId?: null,
       amount?: null
@@ -290,7 +285,7 @@ export interface EventAndErrors extends BaseContract {
       amount?: null
     ): LockReleasedEventFilter;
 
-    "LockReturned(address,bytes32)"(
+    "LockReturned(address,uint256)"(
       buyer?: PromiseOrValue<string> | null,
       lockId?: null
     ): LockReturnedEventFilter;
@@ -310,6 +305,17 @@ export interface EventAndErrors extends BaseContract {
     ): RootUpdatedEventFilter;
     RootUpdated(seller?: null, merkleRoot?: null): RootUpdatedEventFilter;
 
+    "ValidSet(address,address,bool)"(
+      seller?: PromiseOrValue<string> | null,
+      token?: null,
+      state?: null
+    ): ValidSetEventFilter;
+    ValidSet(
+      seller?: PromiseOrValue<string> | null,
+      token?: null,
+      state?: null
+    ): ValidSetEventFilter;
+
     "ValidSignersUpdated(address[])"(
       signers?: null
     ): ValidSignersUpdatedEventFilter;

src/types/factories/EventAndErrors__factory.ts

@@ -25,11 +25,21 @@ const _abi = [
     name: "AmountNotAllowed",
     type: "error",
   },
+  {
+    inputs: [],
+    name: "DecOverflow",
+    type: "error",
+  },
   {
     inputs: [],
     name: "DepositAlreadyExists",
     type: "error",
   },
+  {
+    inputs: [],
+    name: "EmptyPixTarget",
+    type: "error",
+  },
   {
     inputs: [],
     name: "InvalidDeposit",
@@ -55,6 +65,11 @@ const _abi = [
     name: "LoopOverflow",
     type: "error",
   },
+  {
+    inputs: [],
+    name: "MaxBalExceeded",
+    type: "error",
+  },
   {
     inputs: [],
     name: "NoTokens",
@@ -70,6 +85,11 @@ const _abi = [
     name: "NotExpired",
     type: "error",
   },
+  {
+    inputs: [],
+    name: "NotInitialized",
+    type: "error",
+  },
   {
     inputs: [],
     name: "OnlySeller",
@@ -118,12 +138,6 @@ const _abi = [
         name: "seller",
         type: "address",
       },
-      {
-        indexed: false,
-        internalType: "uint256",
-        name: "depositID",
-        type: "uint256",
-      },
       {
         indexed: false,
         internalType: "address",
@@ -151,29 +165,10 @@ const _abi = [
       },
       {
         indexed: false,
-        internalType: "uint256",
-        name: "depositID",
-        type: "uint256",
-      },
-    ],
-    name: "DepositClosed",
-    type: "event",
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: true,
         internalType: "address",
-        name: "seller",
+        name: "token",
         type: "address",
       },
-      {
-        indexed: false,
-        internalType: "uint256",
-        name: "depositID",
-        type: "uint256",
-      },
       {
         indexed: false,
         internalType: "uint256",
@@ -214,14 +209,14 @@ const _abi = [
       },
       {
         indexed: true,
-        internalType: "bytes32",
+        internalType: "uint256",
         name: "lockID",
-        type: "bytes32",
+        type: "uint256",
       },
       {
         indexed: false,
         internalType: "uint256",
-        name: "depositID",
+        name: "seller",
         type: "uint256",
       },
       {
@@ -258,9 +253,9 @@ const _abi = [
       },
       {
         indexed: false,
-        internalType: "bytes32",
+        internalType: "uint256",
         name: "lockId",
-        type: "bytes32",
+        type: "uint256",
       },
       {
         indexed: false,
@@ -283,9 +278,9 @@ const _abi = [
       },
       {
         indexed: false,
-        internalType: "bytes32",
+        internalType: "uint256",
         name: "lockId",
-        type: "bytes32",
+        type: "uint256",
       },
     ],
     name: "LockReturned",
@@ -323,6 +318,31 @@ const _abi = [
     name: "RootUpdated",
     type: "event",
   },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "seller",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "address",
+        name: "token",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "bool",
+        name: "state",
+        type: "bool",
+      },
+    ],
+    name: "ValidSet",
+    type: "event",
+  },
   {
     anonymous: false,
     inputs: [

src/types/factories/lib/utils/Counters__factory.ts

@@ -1,65 +0,0 @@
-/* Autogenerated file. Do not edit manually. */
-/* tslint:disable */
-/* eslint-disable */
-import { Signer, utils, Contract, ContractFactory, Overrides } from "ethers";
-import type { Provider, TransactionRequest } from "@ethersproject/providers";
-import type { PromiseOrValue } from "../../../common";
-import type { Counters, CountersInterface } from "../../../lib/utils/Counters";
-
-const _abi = [
-  {
-    inputs: [],
-    name: "DecOverflow",
-    type: "error",
-  },
-];
-
-const _bytecode =
-  "0x602d6037600b82828239805160001a607314602a57634e487b7160e01b600052600060045260246000fd5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000809000a";
-
-type CountersConstructorParams =
-  | [signer?: Signer]
-  | ConstructorParameters<typeof ContractFactory>;
-
-const isSuperArgs = (
-  xs: CountersConstructorParams
-): xs is ConstructorParameters<typeof ContractFactory> => xs.length > 1;
-
-export class Counters__factory extends ContractFactory {
-  constructor(...args: CountersConstructorParams) {
-    if (isSuperArgs(args)) {
-      super(...args);
-    } else {
-      super(_abi, _bytecode, args[0]);
-    }
-  }
-
-  override deploy(
-    overrides?: Overrides & { from?: PromiseOrValue<string> }
-  ): Promise<Counters> {
-    return super.deploy(overrides || {}) as Promise<Counters>;
-  }
-  override getDeployTransaction(
-    overrides?: Overrides & { from?: PromiseOrValue<string> }
-  ): TransactionRequest {
-    return super.getDeployTransaction(overrides || {});
-  }
-  override attach(address: string): Counters {
-    return super.attach(address) as Counters;
-  }
-  override connect(signer: Signer): Counters__factory {
-    return super.connect(signer) as Counters__factory;
-  }
-
-  static readonly bytecode = _bytecode;
-  static readonly abi = _abi;
-  static createInterface(): CountersInterface {
-    return new utils.Interface(_abi) as CountersInterface;
-  }
-  static connect(
-    address: string,
-    signerOrProvider: Signer | Provider
-  ): Counters {
-    return new Contract(address, _abi, signerOrProvider) as Counters;
-  }
-}

src/types/factories/lib/utils/Multicall__factory.ts

@@ -0,0 +1,174 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import {
+  Signer,
+  utils,
+  Contract,
+  ContractFactory,
+  PayableOverrides,
+} from "ethers";
+import type { Provider, TransactionRequest } from "@ethersproject/providers";
+import type { PromiseOrValue } from "../../../common";
+import type {
+  Multicall,
+  MulticallInterface,
+} from "../../../lib/utils/Multicall";
+
+const _abi = [
+  {
+    inputs: [],
+    stateMutability: "payable",
+    type: "constructor",
+  },
+  {
+    inputs: [
+      {
+        internalType: "string",
+        name: "reason",
+        type: "string",
+      },
+    ],
+    name: "CallFailed",
+    type: "error",
+  },
+  {
+    inputs: [
+      {
+        components: [
+          {
+            internalType: "address",
+            name: "target",
+            type: "address",
+          },
+          {
+            internalType: "bytes",
+            name: "callData",
+            type: "bytes",
+          },
+        ],
+        internalType: "struct Multicall.Call[]",
+        name: "calls",
+        type: "tuple[]",
+      },
+    ],
+    name: "mtc1",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+      {
+        internalType: "bytes[]",
+        name: "",
+        type: "bytes[]",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        components: [
+          {
+            internalType: "address",
+            name: "target",
+            type: "address",
+          },
+          {
+            internalType: "bytes",
+            name: "callData",
+            type: "bytes",
+          },
+        ],
+        internalType: "struct Multicall.Call[]",
+        name: "calls",
+        type: "tuple[]",
+      },
+    ],
+    name: "mtc2",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+      {
+        components: [
+          {
+            internalType: "bool",
+            name: "success",
+            type: "bool",
+          },
+          {
+            internalType: "bytes",
+            name: "returnData",
+            type: "bytes",
+          },
+        ],
+        internalType: "struct Multicall.Result[]",
+        name: "",
+        type: "tuple[]",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+];
+
+const _bytecode =
+  "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";
+
+type MulticallConstructorParams =
+  | [signer?: Signer]
+  | ConstructorParameters<typeof ContractFactory>;
+
+const isSuperArgs = (
+  xs: MulticallConstructorParams
+): xs is ConstructorParameters<typeof ContractFactory> => xs.length > 1;
+
+export class Multicall__factory extends ContractFactory {
+  constructor(...args: MulticallConstructorParams) {
+    if (isSuperArgs(args)) {
+      super(...args);
+    } else {
+      super(_abi, _bytecode, args[0]);
+    }
+  }
+
+  override deploy(
+    overrides?: PayableOverrides & { from?: PromiseOrValue<string> }
+  ): Promise<Multicall> {
+    return super.deploy(overrides || {}) as Promise<Multicall>;
+  }
+  override getDeployTransaction(
+    overrides?: PayableOverrides & { from?: PromiseOrValue<string> }
+  ): TransactionRequest {
+    return super.getDeployTransaction(overrides || {});
+  }
+  override attach(address: string): Multicall {
+    return super.attach(address) as Multicall;
+  }
+  override connect(signer: Signer): Multicall__factory {
+    return super.connect(signer) as Multicall__factory;
+  }
+
+  static readonly bytecode = _bytecode;
+  static readonly abi = _abi;
+  static createInterface(): MulticallInterface {
+    return new utils.Interface(_abi) as MulticallInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): Multicall {
+    return new Contract(address, _abi, signerOrProvider) as Multicall;
+  }
+}

src/types/factories/lib/utils/index.ts

@@ -1,5 +1,5 @@
 /* Autogenerated file. Do not edit manually. */
 /* tslint:disable */
 /* eslint-disable */
-export { Counters__factory } from "./Counters__factory";
+export { Multicall__factory } from "./Multicall__factory";
 export { ReentrancyGuard__factory } from "./ReentrancyGuard__factory";

src/types/hardhat.d.ts

@@ -33,9 +33,9 @@ declare module "hardhat/types/runtime" {
       signerOrOptions?: ethers.Signer | FactoryOptions
     ): Promise<Contracts.ERC20__factory>;
     getContractFactory(
-      name: "Counters",
+      name: "Multicall",
       signerOrOptions?: ethers.Signer | FactoryOptions
-    ): Promise<Contracts.Counters__factory>;
+    ): Promise<Contracts.Multicall__factory>;
     getContractFactory(
       name: "ReentrancyGuard",
       signerOrOptions?: ethers.Signer | FactoryOptions
@@ -75,10 +75,10 @@ declare module "hardhat/types/runtime" {
       signer?: ethers.Signer
     ): Promise<Contracts.ERC20>;
     getContractAt(
-      name: "Counters",
+      name: "Multicall",
       address: string,
       signer?: ethers.Signer
-    ): Promise<Contracts.Counters>;
+    ): Promise<Contracts.Multicall>;
     getContractAt(
       name: "ReentrancyGuard",
       address: string,

src/types/index.ts

@@ -17,8 +17,8 @@ export type { MockToken } from "./lib/mock/mockToken.sol/MockToken";
 export { MockToken__factory } from "./factories/lib/mock/mockToken.sol/MockToken__factory";
 export type { ERC20 } from "./lib/tokens/ERC20";
 export { ERC20__factory } from "./factories/lib/tokens/ERC20__factory";
-export type { Counters } from "./lib/utils/Counters";
+export type { Multicall } from "./lib/utils/Multicall";
-export { Counters__factory } from "./factories/lib/utils/Counters__factory";
+export { Multicall__factory } from "./factories/lib/utils/Multicall__factory";
 export type { ReentrancyGuard } from "./lib/utils/ReentrancyGuard";
 export { ReentrancyGuard__factory } from "./factories/lib/utils/ReentrancyGuard__factory";
 export type { P2PIX } from "./p2pix.sol/P2PIX";

src/types/lib/utils/Counters.ts

@@ -1,56 +0,0 @@
-/* Autogenerated file. Do not edit manually. */
-/* tslint:disable */
-/* eslint-disable */
-import type { BaseContract, Signer, utils } from "ethers";
-
-import type { Listener, Provider } from "@ethersproject/providers";
-import type {
-  TypedEventFilter,
-  TypedEvent,
-  TypedListener,
-  OnEvent,
-  PromiseOrValue,
-} from "../../common";
-
-export interface CountersInterface extends utils.Interface {
-  functions: {};
-
-  events: {};
-}
-
-export interface Counters extends BaseContract {
-  connect(signerOrProvider: Signer | Provider | string): this;
-  attach(addressOrName: string): this;
-  deployed(): Promise<this>;
-
-  interface: CountersInterface;
-
-  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: {};
-
-  callStatic: {};
-
-  filters: {};
-
-  estimateGas: {};
-
-  populateTransaction: {};
-}

src/types/lib/utils/Multicall.ts

@@ -0,0 +1,155 @@
+/* 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 } from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+  PromiseOrValue,
+} from "../../common";
+
+export declare namespace Multicall {
+  export type CallStruct = {
+    target: PromiseOrValue<string>;
+    callData: PromiseOrValue<BytesLike>;
+  };
+
+  export type CallStructOutput = [string, string] & {
+    target: string;
+    callData: string;
+  };
+
+  export type ResultStruct = {
+    success: PromiseOrValue<boolean>;
+    returnData: PromiseOrValue<BytesLike>;
+  };
+
+  export type ResultStructOutput = [boolean, string] & {
+    success: boolean;
+    returnData: string;
+  };
+}
+
+export interface MulticallInterface extends utils.Interface {
+  functions: {
+    "mtc1((address,bytes)[])": FunctionFragment;
+    "mtc2((address,bytes)[])": FunctionFragment;
+  };
+
+  getFunction(nameOrSignatureOrTopic: "mtc1" | "mtc2"): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "mtc1",
+    values: [Multicall.CallStruct[]]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "mtc2",
+    values: [Multicall.CallStruct[]]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "mtc1", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "mtc2", data: BytesLike): Result;
+
+  events: {};
+}
+
+export interface Multicall extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: MulticallInterface;
+
+  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: {
+    mtc1(
+      calls: Multicall.CallStruct[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+
+    mtc2(
+      calls: Multicall.CallStruct[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<ContractTransaction>;
+  };
+
+  mtc1(
+    calls: Multicall.CallStruct[],
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  mtc2(
+    calls: Multicall.CallStruct[],
+    overrides?: Overrides & { from?: PromiseOrValue<string> }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    mtc1(
+      calls: Multicall.CallStruct[],
+      overrides?: CallOverrides
+    ): Promise<[BigNumber, string[]]>;
+
+    mtc2(
+      calls: Multicall.CallStruct[],
+      overrides?: CallOverrides
+    ): Promise<[BigNumber, string, Multicall.ResultStructOutput[]]>;
+  };
+
+  filters: {};
+
+  estimateGas: {
+    mtc1(
+      calls: Multicall.CallStruct[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+
+    mtc2(
+      calls: Multicall.CallStruct[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    mtc1(
+      calls: Multicall.CallStruct[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+
+    mtc2(
+      calls: Multicall.CallStruct[],
+      overrides?: Overrides & { from?: PromiseOrValue<string> }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/types/lib/utils/index.ts

@@ -1,5 +1,5 @@
 /* Autogenerated file. Do not edit manually. */
 /* tslint:disable */
 /* eslint-disable */
-export type { Counters } from "./Counters";
+export type { Multicall } from "./Multicall";
 export type { ReentrancyGuard } from "./ReentrancyGuard";

test/Reputation.test.ts

@@ -23,21 +23,73 @@ describe("Reputation", () => {
     ({ reputation } = await loadFixture(repFixture));
   });
 
+  // describe("Limiter", async () => {
+  //   it("Curve reliability", async () => {
+  //     const tx1 = await reputation.connect(owner).limiter(0);
+  //     const tx2 = await reputation.limiter(500);
+  //     const tx3 = await reputation
+  //       .connect(owner)
+  //       .limiter(444444);
+  //     const tx4 = await reputation.limiter(988700);
+
+  //     expect(tx1).to.eq(curve(0));
+  //     expect(tx2).to.eq(curve(500));
+  //     expect(tx3).to.eq(curve(444444));
+  //     expect(tx4).to.eq(curve(988700));
+  //   });
+  // });
+
   describe("Limiter", async () => {
     it("Curve reliability", async () => {
-      const tx1 = await reputation.connect(owner).limiter(0);
+      const testCases = [
-      const tx2 = await reputation.limiter(500);
+        {
-      const tx3 = await reputation
+          x: 0,
-        .connect(owner)
+          expected: curve(0),
-        .limiter(444444);
+        },
-      const tx4 = await reputation.limiter(988700);
+        {
-
+          x: 500,
-      expect(tx1).to.eq(curve(0));
+          expected: curve(500),
-      expect(tx2).to.eq(curve(500));
+        },
-      expect(tx3).to.eq(curve(444444));
+        {
-      expect(tx4).to.eq(curve(988700));
+          x: 444444,
-
+          expected: curve(444444),
+        },
+        {
+          x: 988700,
+          expected: curve(988700),
+        },
+        {
+          x: Number.MAX_SAFE_INTEGER,
+          shouldRevert: "overflow",
+        },
+        {
+          x: Number.POSITIVE_INFINITY,
+          shouldRevert: "overflow",
+        },
+        {
+          x: Number.NEGATIVE_INFINITY,
+          shouldRevert: "overflow",
+        },
+        {
+          x: -1,
+          shouldRevert: "value out-of-bounds",
+        },
+        {
+          x: Number.NaN,
+          shouldRevert: "invalid BigNumber string",
+        },
+      ];
 
+      for (const testCase of testCases) {
+        if (testCase.shouldRevert != undefined) {
+          await expect(reputation.limiter(testCase.x)).to.be
+            .rejected;
+        } else {
+          const result = await reputation.limiter(testCase.x);
+          expect(result).to.eq(testCase.expected).and.to.be
+            .ok;
+        }
+      }
     });
   });
 });

test/utils/errors.ts

@@ -15,4 +15,9 @@ export enum P2PixErrors {
   AddressDenied = "AddressDenied",
   AmountNotAllowed = "AmountNotAllowed",
   LockExpired = "LockExpired",
+  EmptyPixTarget = "EmptyPixTarget",
+  MaxBalExceeded = "MaxBalExceeded",
+  NotInitialized = "NotInitialized",
+  DecOverflow = "DecOverflow",
+  CallFailed = "CallFailed",
 }

test/utils/fixtures.ts

@@ -6,7 +6,9 @@ import { MerkleTree } from "merkletreejs";
 
 import {
   MockToken,
+  Multicall,
   P2PIX,
+  P2PIX__factory,
   Reputation,
 } from "../../src/types";
 
@@ -17,22 +19,27 @@ export interface Deploys {
   token: string;
 }
 
-export interface Deposit {
-  remaining: BigNumber;
-  pixTarget: string;
-  seller: string;
-  token: string;
-  valid: boolean;
-}
-
 export interface Lock {
-  depositID: BigNumber;
+  sellerKey: BigNumber;
+  counter: BigNumber;
   relayerPremium: BigNumber;
   amount: BigNumber;
   expirationBlock: BigNumber;
+  pixTarget: BigNumber;
   buyerAddress: string;
   relayerTarget: string;
   relayerAddress: string;
+  token: string;
+}
+
+export interface Call {
+  target: string;
+  callData: string;
+}
+
+export interface Result {
+  success: boolean;
+  returnData: string;
 }
 
 export interface P2pixFixture {
@@ -46,19 +53,40 @@ export interface RepFixture {
   reputation: Reputation;
 }
 
-type P2PixAndReputation = P2pixFixture & RepFixture;
+export interface MtcFixture {
+  multicall: Multicall;
+}
+
+type P2PixAndReputation = P2pixFixture &
+  RepFixture &
+  MtcFixture;
 
 // exported constants
 export const getSignerAddrs = (
   amount: number,
   addrs: SignerWithAddress[],
 ): string[] => {
-  const signers: string[] = [];
+  return addrs.slice(0, amount).map(({ address }) => address);
-  const buffr = addrs.slice(0, amount);
+};
-  for (let i = 0; i < amount; i++) {
+
-    signers.push(buffr[i].address);
+export const getBnFrom = (nums: number[]): BigNumber[] => {
-  }
+  const bns = nums.map(num => ethers.BigNumber.from(num));
-  return signers;
+  return bns;
+};
+
+export const getLockData = (
+  addr: string,
+  locks: BigNumber[][],
+): Call[] => {
+  const iface = new ethers.utils.Interface(
+    P2PIX__factory.abi,
+  );
+  return locks.map(lock => ({
+    target: addr,
+    callData: iface.encodeFunctionData("getLocksStatus", [
+      lock,
+    ]),
+  }));
 };
 
 export const randomSigners = (amount: number): Signer[] => {
@@ -125,6 +153,11 @@ export async function p2pixFixture(): Promise<P2PixAndReputation> {
     [true],
   )) as P2PIX;
 
+  const Multicall = await ethers.getContractFactory(
+    "Multicall",
+  );
+  const multicall = (await Multicall.deploy()) as Multicall;
+
   const signers = await ethers.getSigners();
   const whitelisted = signers.slice(0, 2);
   const leaves = whitelisted.map(account =>
@@ -139,6 +172,7 @@ export async function p2pixFixture(): Promise<P2PixAndReputation> {
   );
 
   return {
+    multicall,
     reputation,
     erc20,
     p2pix,

yarn.lock

@@ -6049,16 +6049,17 @@ fsevents@~2.1.1:
   languageName: node
   linkType: hard
 
-"hardhat-tracer@npm:^1.2.0":
+"hardhat-tracer@npm:beta":
-  version: 1.2.0
+  version: 2.0.0-beta.6
-  resolution: "hardhat-tracer@npm:1.2.0"
+  resolution: "hardhat-tracer@npm:2.0.0-beta.6"
   dependencies:
     ethers: ^5.6.1
   peerDependencies:
+    chai: 4.x
     chalk: 4.x
     ethers: 5.x
     hardhat: 2.x
-  checksum: 1d348fb3ed60cbde2287329730ccd37c73af80cc2cf4ccfb045f26af26c7efebd4a6fdf611035f34ca7fb75d0eb95985e8f5ed4f0537d2615fb6e126d1d035f0
+  checksum: b14795adf3eecd487b874ef06799ab43c342a4908bcf58bbd0bc7274caa7976456a0c75a702aaf3a937fe7c8afbfe2e2a9f263b6a0c7e2fc56e6a54144288369
   languageName: node
   linkType: hard
 
@@ -8459,7 +8460,7 @@ fsevents@~2.1.1:
     fs-extra: ^10.1.0
     hardhat: ^2.12.2
     hardhat-gas-reporter: ^1.0.9
-    hardhat-tracer: ^1.2.0
+    hardhat-tracer: beta
     husky: ^8.0.1
     keccak256: ^1.0.6
     lint-staged: ^13.0.3