apps/contribution/contracts/Contribution.sol

@@ -21,8 +21,8 @@ contract Contribution is AragonApp {
   bytes32 public constant KERNEL_APP_ADDR_NAMESPACE = 0xd6f028ca0e8edb4a8c9757ca4fdccab25fa1e0317da1188108f7d2dee14902fb;
 
   // ensure alphabetic order
-  enum Apps { Contribution, Contributor, Proposal, Token }
-  bytes32[4] public appIds;
+  enum Apps { Contribution, Contributor, Proposal, Reimbursement, Token }
+  bytes32[5] public appIds;
 
   struct ContributionData {
     uint32 contributorId;
@@ -54,7 +54,7 @@ contract Contribution is AragonApp {
   event ContributionClaimed(uint32 id, uint32 indexed contributorId, uint32 amount);
   event ContributionVetoed(uint32 id, address vetoedByAccount);
 
-  function initialize(bytes32[4] _appIds) public onlyInit {
+  function initialize(bytes32[5] _appIds) public onlyInit {
     appIds = _appIds;
     blocksToWait = 40320; // 7 days; 15 seconds block time
     initialized();

apps/contributor/contracts/Contributor.sol

@@ -28,14 +28,14 @@ contract Contributor is AragonApp {
   uint32 public contributorsCount;
 
   // ensure alphabetic order
-  enum Apps { Contribution, Contributor, Proposal, Token }
-  bytes32[4] public appIds;
+  enum Apps { Contribution, Contributor, Proposal, Reimbursement, Token }
+  bytes32[5] public appIds;
 
   event ContributorProfileUpdated(uint32 id, bytes32 oldHashDigest, bytes32 newHashDigest); // what should be logged
   event ContributorAccountUpdated(uint32 id, address oldAccount, address newAccount);
   event ContributorAdded(uint32 id, address account);
 
-  function initialize(address root,bytes32[4] _appIds) public onlyInit {
+  function initialize(address root, bytes32[5] _appIds) public onlyInit {
     appIds = _appIds;
 
     initialized();

apps/proposal/contracts/Proposal.sol

@@ -20,8 +20,8 @@ contract Proposal is AragonApp {
 
   bytes32 public constant KERNEL_APP_ADDR_NAMESPACE = 0xd6f028ca0e8edb4a8c9757ca4fdccab25fa1e0317da1188108f7d2dee14902fb;
   // ensure alphabetic order
-  enum Apps { Contribution, Contributor, Proposal, Token }
-  bytes32[4] public appIds;
+  enum Apps { Contribution, Contributor, Proposal, Reimbursement, Token }
+  bytes32[5] public appIds;
 
   struct Proposal {
     address creatorAccount;
@@ -46,7 +46,7 @@ contract Proposal is AragonApp {
   event ProposalVoted(uint32 id, uint32 voterId, uint16 totalVotes);
   event ProposalExecuted(uint32 id, uint32 contributorId, uint32 amount);
 
-  function initialize(bytes32[4] _appIds) public onlyInit {
+  function initialize(bytes32[5] _appIds) public onlyInit {
     appIds = _appIds;
     initialized();
   }

apps/reimbursement/.gitattributes

@@ -0,0 +1 @@
+*.sol linguist-language=Solidity

apps/reimbursement/.gitignore

@@ -0,0 +1,7 @@
+node_modules
+artifacts
+.cache
+cache
+dist
+ipfs.cmd
+package-lock.json

apps/reimbursement/arapp.json

@@ -0,0 +1,34 @@
+{
+  "roles": [
+    {
+      "name": "Add reimursements",
+      "id": "ADD_REIMBURSEMENT_ROLE",
+      "params": []
+    },
+    {
+      "name": "Veto reimbursement",
+      "id": "VETO_REIMBURSEMENT_ROLE",
+      "params": []
+    }
+  ],
+  "environments": {
+    "default": {
+      "network": "development",
+      "appName": "kredits-reimbursement.open.aragonpm.eth"
+    },
+    "rinkeby": {
+      "registry": "0x98df287b6c145399aaa709692c8d308357bc085d",
+      "appName": "kredits-reimbursement.open.aragonpm.eth",
+      "wsRPC": "wss://rinkeby.eth.aragon.network/ws",
+      "network": "rinkeby"
+    },
+    "production": {
+      "registry": "0x314159265dd8dbb310642f98f50c066173c1259b",
+      "appName": "kredits-reimbursement.aragonpm.eth",
+      "wsRPC": "wss://mainnet.eth.aragon.network/ws",
+      "network": "mainnet"
+    }
+  },
+  "appName": "kredits-reimbursement.aragonpm.eth",
+  "path": "contracts/Reimbursement.sol"
+}

apps/reimbursement/buidler.config.js

@@ -0,0 +1,34 @@
+const { usePlugin } = require('@nomiclabs/buidler/config')
+const hooks = require('./scripts/buidler-hooks')
+
+usePlugin('@aragon/buidler-aragon')
+
+module.exports = {
+  // Default Buidler configurations. Read more about it at https://buidler.dev/config/
+  defaultNetwork: 'localhost',
+  networks: {
+    localhost: {
+      url: 'http://localhost:8545',
+    },
+  },
+  solc: {
+    version: '0.4.24',
+    optimizer: {
+      enabled: true,
+      runs: 10000,
+    },
+  },
+  // Etherscan plugin configuration. Learn more at https://github.com/nomiclabs/buidler/tree/master/packages/buidler-etherscan
+  etherscan: {
+    apiKey: '', // API Key for smart contract verification. Get yours at https://etherscan.io/apis
+  },
+  // Aragon plugin configuration
+  aragon: {
+    appServePort: 8001,
+    clientServePort: 3000,
+    appSrcPath: 'app/',
+    appBuildOutputPath: 'dist/',
+    appName: 'expenses',
+    hooks, // Path to script hooks
+  },
+}

apps/reimbursement/contracts/Reimbursement.sol

@@ -0,0 +1,94 @@
+pragma solidity ^0.4.24;
+
+import "@aragon/os/contracts/apps/AragonApp.sol";
+import "@aragon/os/contracts/kernel/IKernel.sol";
+
+contract Reimbursement is AragonApp {
+  bytes32 public constant ADD_REIMBURSEMENT_ROLE = keccak256("ADD_REIMBURSEMENT_ROLE");
+  bytes32 public constant VETO_REIMBURSEMENT_ROLE = keccak256("VETO_REIMBURSEMENT_ROLE");
+  // bytes32 public constant MANAGE_APPS_ROLE = keccak256("MANAGE_APPS_ROLE");
+
+  struct ReimbursementData {
+    uint32 recipientId;
+    uint256 amount;
+    address token;
+    bytes32 hashDigest;
+    uint8 hashFunction;
+    uint8 hashSize;
+    uint256 confirmedAtBlock;
+    bool vetoed;
+    bool exists;
+  }
+
+  mapping(uint32 => ReimbursementData) public reimbursements;
+  uint32 public reimbursementsCount;
+
+  uint32 public blocksToWait;
+
+  event ReimbursementAdded(uint32 id, address indexed addedByAccount, uint256 amount);
+  event ReimbursementVetoed(uint32 id, address vetoedByAccount);
+
+  function initialize() public onlyInit {
+    blocksToWait = 40320; // 7 days; 15 seconds block time
+    initialized();
+  }
+
+  // function setApps() public isInitialized auth(MANAGE_APPS_ROLE) {
+  // }
+
+  function totalAmount(bool confirmedOnly) public view returns (uint256 amount) {
+    for (uint32 i = 1; i <= reimbursementsCount; i++) {
+      ReimbursementData memory r = reimbursements[i];
+      if (!r.vetoed && (block.number >= r.confirmedAtBlock || !confirmedOnly)) {
+        amount += r.amount; // should use safemath
+      }
+    }
+  }
+
+  function get(uint32 reimbursementId) public view returns (uint32 id, uint32 recipientId, uint256 amount, address token, bytes32 hashDigest, uint8 hashFunction, uint8 hashSize, uint256 confirmedAtBlock, bool exists, bool vetoed) {
+    id = reimbursementId;
+    ReimbursementData storage r = reimbursements[id];
+    return (
+      id,
+      r.recipientId,
+      r.amount,
+      r.token,
+      r.hashDigest,
+      r.hashFunction,
+      r.hashSize,
+      r.confirmedAtBlock,
+      r.exists,
+      r.vetoed
+    );
+  }
+
+  function add(uint256 amount, address token, uint32 recipientId, bytes32 hashDigest, uint8 hashFunction, uint8 hashSize) public isInitialized auth(ADD_REIMBURSEMENT_ROLE) {
+    uint32 reimbursementId = reimbursementsCount + 1;
+    ReimbursementData storage r = reimbursements[reimbursementId];
+    r.exists = true;
+    r.amount = amount;
+    r.token = token;
+    r.recipientId = recipientId;
+    r.hashDigest = hashDigest;
+    r.hashFunction = hashFunction;
+    r.hashSize = hashSize;
+    r.confirmedAtBlock = block.number + blocksToWait;
+
+    reimbursementsCount++;
+
+    emit ReimbursementAdded(reimbursementId, msg.sender, amount);
+  }
+
+  function veto(uint32 reimbursementId) public isInitialized auth(VETO_REIMBURSEMENT_ROLE) {
+    ReimbursementData storage r = reimbursements[reimbursementId];
+    require(r.exists, 'NOT_FOUND');
+    require(block.number < r.confirmedAtBlock, 'VETO_PERIOD_ENDED');
+    r.vetoed = true;
+
+    emit ReimbursementVetoed(reimbursementId, msg.sender);
+  }
+
+  function exists(uint32 reimbursementId) public view returns (bool) {
+    return reimbursements[reimbursementId].exists;
+  }
+}

apps/reimbursement/manifest.json

@@ -0,0 +1,16 @@
+{
+  "name": "kredits Reimbursement",
+  "author": "Placeholder-author",
+  "description": "An application for Aragon",
+  "details_url": "/meta/details.md",
+  "source_url": "https://<placeholder-repository-url>",
+  "icons": [
+    {
+      "src": "/meta/icon.svg",
+      "sizes": "56x56"
+    }
+  ],
+  "screenshots": [{ "src": "/meta/screenshot-1.png" }],
+  "start_url": "/index.html",
+  "script": "/script.js"
+}

apps/reimbursement/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "kredits-reimbursement",
+  "version": "1.0.0",
+  "description": "",
+  "scripts": {
+    "start": "npm run start:aragon:ipfs",
+    "start:aragon:ipfs": "aragon run",
+    "start:aragon:http": "aragon run --http localhost:8001 --http-served-from ./dist",
+    "start:app": "",
+    "compile": "aragon contracts compile",
+    "sync-assets": "",
+    "build:app": "",
+    "build:script": "",
+    "build": "",
+    "publish:patch": "aragon apm publish patch",
+    "publish:minor": "aragon apm publish minor",
+    "publish:major": "aragon apm publish major",
+    "versions": "aragon apm versions",
+    "test": "truffle test"
+  },
+  "dependencies": {
+    "@aragon/os": "^4.4.0"
+  },
+  "devDependencies": {
+    "@aragon/test-helpers": "^2.1.0",
+    "eth-gas-reporter": "^0.2.17",
+    "ganache-cli": "^6.9.1",
+    "solidity-coverage": "^0.5.11"
+  }
+}

apps/reimbursement/test/helpers/dao.js

@@ -0,0 +1,65 @@
+/*
+
+const { hash } = require('eth-ens-namehash')
+const { getEventArgument } = require('@aragon/contract-test-helpers/events')
+const Kernel = artifacts.require('@aragon/os/build/contracts/kernel/Kernel')
+const ACL = artifacts.require('@aragon/os/build/contracts/acl/ACL')
+const EVMScriptRegistryFactory = artifacts.require(
+  '@aragon/os/build/contracts/factory/EVMScriptRegistryFactory'
+)
+const DAOFactory = artifacts.require(
+  '@aragon/os/build/contracts/factory/DAOFactory'
+)
+
+const newDao = async (rootAccount) => {
+  // Deploy a DAOFactory.
+  const kernelBase = await Kernel.new(true)
+  const aclBase = await ACL.new()
+  const registryFactory = await EVMScriptRegistryFactory.new()
+  const daoFactory = await DAOFactory.new(
+    kernelBase.address,
+    aclBase.address,
+    registryFactory.address
+  )
+
+  // Create a DAO instance.
+  const daoReceipt = await daoFactory.newDAO(rootAccount)
+  const dao = await Kernel.at(getEventArgument(daoReceipt, 'DeployDAO', 'dao'))
+
+  // Grant the rootAccount address permission to install apps in the DAO.
+  const acl = await ACL.at(await dao.acl())
+  const APP_MANAGER_ROLE = await kernelBase.APP_MANAGER_ROLE()
+  await acl.createPermission(
+    rootAccount,
+    dao.address,
+    APP_MANAGER_ROLE,
+    rootAccount,
+    { from: rootAccount }
+  )
+
+  return { dao, acl }
+}
+
+const newApp = async (dao, appName, baseAppAddress, rootAccount) => {
+  const receipt = await dao.newAppInstance(
+    hash(`${appName}.aragonpm.test`), // appId - Unique identifier for each app installed in the DAO; can be any bytes32 string in the tests.
+    baseAppAddress, // appBase - Location of the app's base implementation.
+    '0x', // initializePayload - Used to instantiate and initialize the proxy in the same call (if given a non-empty bytes string).
+    false, // setDefault - Whether the app proxy is the default proxy.
+    { from: rootAccount }
+  )
+
+  // Find the deployed proxy address in the tx logs.
+  const logs = receipt.logs
+  const log = logs.find((l) => l.event === 'NewAppProxy')
+  const proxyAddress = log.args.proxy
+
+  return proxyAddress
+}
+
+module.exports = {
+  newDao,
+  newApp,
+}
+
+*/

apps/reimbursement/test/helpers/permissions.js

@@ -0,0 +1,21 @@
+/*
+
+const ANY_ADDRESS = '0xffffffffffffffffffffffffffffffffffffffff'
+
+const setOpenPermission = async (acl, appAddress, role, rootAddress) => {
+  // Note: Setting a permission to 0xffffffffffffffffffffffffffffffffffffffff
+  // is interpreted by aragonOS as allowing the role for any address.
+  await acl.createPermission(
+    ANY_ADDRESS, // entity (who?) - The entity or address that will have the permission.
+    appAddress, // app (where?) - The app that holds the role involved in this permission.
+    role, // role (what?) - The particular role that the entity is being assigned to in this permission.
+    rootAddress, // manager - Can grant/revoke further permissions for this role.
+    { from: rootAddress}
+  )
+}
+
+module.exports = {
+  setOpenPermission
+}
+
+*/

apps/reimbursement/truffle.js

@@ -0,0 +1 @@
+module.exports = require("../../truffle.js");

apps/token/contracts/Token.sol

@@ -7,12 +7,12 @@ contract Token is ERC20Token, AragonApp {
   bytes32 public constant MINT_TOKEN_ROLE = keccak256("MINT_TOKEN_ROLE");
 
   // ensure alphabetic order
-  enum Apps { Contribution, Contributor, Proposal, Token }
-  bytes32[4] public appIds;
+  enum Apps { Contribution, Contributor, Proposal, Reimbursement, Token }
+  bytes32[5] public appIds;
 
   event LogMint(address indexed recipient, uint256 amount, uint32 contributionId);
 
-  function initialize(bytes32[4] _appIds) public onlyInit {
+  function initialize(bytes32[5] _appIds) public onlyInit {
     appIds = _appIds;
     name = 'Kredits';
     symbol = '₭S';

config/seeds.js

@@ -31,13 +31,19 @@ const contractCalls = [
     wiki_username: 'Manuel',
   }, { gasLimit: 200000 }]],
 
-  ['Proposal', 'add', [{ contributorId: 1, contributorIpfsHash: 'QmWKCYGr2rSf6abUPaTYqf98urvoZxGrb7dbspFZA6oyVF', date: '2019-04-09', amount: 500, kind: 'dev', description: '[67P/kredits-contracts] Ran the seeds', url: '' }, { gasLimit: 350000 }]],
-  ['Proposal', 'add', [{ contributorId: 2, contributorIpfsHash: 'QmcHzEeAM26HV2zHTf5HnZrCtCtGdEccL5kUtDakAB7ozB', date: '2019-04-10', amount: 500, kind: 'dev', description: '[67P/kredits-contracts] Ran the seeds', url: '' }, { gasLimit: 350000 }]],
-  ['Proposal', 'add', [{ contributorId: 2, contributorIpfsHash: 'QmcHzEeAM26HV2zHTf5HnZrCtCtGdEccL5kUtDakAB7ozB', date: '2019-04-11', amount: 500, kind: 'dev', description: '[67P/kredits-contracts] Hacked on kredits', url: '' }, { gasLimit: 350000 }]],
-  ['Proposal', 'vote', [1, { gasLimit: 550000 }]],
-  ['Contribution', 'add', [{ contributorId: 1, contributorIpfsHash: 'QmWKCYGr2rSf6abUPaTYqf98urvoZxGrb7dbspFZA6oyVF', date: '2019-04-11', amount: 5000, kind: 'dev', description: '[67P/kredits-contracts] Introduce contribution token', url: '' }, { gasLimit: 350000 }]],
+  ['Contribution', 'add', [{ contributorId: 1, contributorIpfsHash: 'QmWKCYGr2rSf6abUPaTYqf98urvoZxGrb7dbspFZA6oyVF', date: '2019-04-11', amount: 500, kind: 'dev', description: '[67P/kredits-contracts] Test this thing', url: '' }, { gasLimit: 350000 }]],
   ['Contribution', 'add', [{ contributorId: 2, contributorIpfsHash: 'QmcHzEeAM26HV2zHTf5HnZrCtCtGdEccL5kUtDakAB7ozB', date: '2019-04-11', amount: 1500, kind: 'dev', description: '[67P/kredits-web] Reviewed stuff', url: '' }, { gasLimit: 350000 }]],
-  ['Contribution', 'claim', [1, { gasLimit: 300000 }]],
+  ['Contribution', 'add', [{ contributorId: 1, contributorIpfsHash: 'QmWKCYGr2rSf6abUPaTYqf98urvoZxGrb7dbspFZA6oyVF', date: '2019-04-11', amount: 1500, kind: 'dev', description: '[67P/kredits-contracts] Add tests', url: '' }, { gasLimit: 350000 }]],
+  ['Contribution', 'add', [{ contributorId: 1, contributorIpfsHash: 'QmWKCYGr2rSf6abUPaTYqf98urvoZxGrb7dbspFZA6oyVF', date: '2019-04-11', amount: 1500, kind: 'dev', description: '[67P/kredits-contracts] Introduce contribution token', url: '' }, { gasLimit: 350000 }]],
+  ['Contribution', 'add', [{ contributorId: 2, contributorIpfsHash: 'QmcHzEeAM26HV2zHTf5HnZrCtCtGdEccL5kUtDakAB7ozB', date: '2019-04-11', amount: 5000, kind: 'dev', description: '[67P/kredits-web] Expense UI, first draft', url: '' }, { gasLimit: 350000 }]],
+
+  ['Reimbursement', 'add', [{amount: 1116000, recipientId: 1, token: '0x2260fac5e5542a773aa44fbcfedf7c193bc2c599', expenses: [
+    { title: 'Server rent', description: 'Dedicated server: andromeda.kosmos.org, April 2020', amount: 61, currency: 'EUR', date: '2020-05-28' },
+    { title: 'Server rent', description: 'Dedicated server: centaurus.kosmos.org, April 2020', amount: 32, currency: 'EUR', date: '2020-05-28' }
+  ]}, { gasLimit: 300000 }]],
+  ['Reimbursement', 'add', [{amount: 166800, recipientId: 2, token: '0x2260fac5e5542a773aa44fbcfedf7c193bc2c599', expenses: [
+    { title: 'Domain kosmos.chat', description: 'Yearly registration fee for domain kosmos.chat', amount: 13.90, currency: 'EUR', date: '2020-05-30' }
+  ]}, { gasLimit: 300000 }]],
 ];
 
 const funds = [

contracts/KreditsKit.sol

@@ -10,17 +10,18 @@ import "../apps/contribution/contracts/Contribution.sol";
 import "../apps/contributor/contracts/Contributor.sol";
 import "../apps/token/contracts/Token.sol";
 import "../apps/proposal/contracts/Proposal.sol";
+import "../apps/reimbursement/contracts/Reimbursement.sol";
 
 contract KreditsKit is KitBase  {
 
     // ensure alphabetic order
-    enum Apps { Contribution, Contributor, Proposal, Token }
-    bytes32[4] public appIds;
+    enum Apps { Contribution, Contributor, Proposal, Reimbursement, Token }
+    bytes32[5] public appIds;
 
     event DeployInstance(address dao);
     event InstalledApp(address dao, address appProxy, bytes32 appId);
 
-    constructor (DAOFactory _fac, ENS _ens, bytes32[4] _appIds) public KitBase(_fac, _ens) {
+    constructor (DAOFactory _fac, ENS _ens, bytes32[5] _appIds) public KitBase(_fac, _ens) {
       appIds = _appIds;
     }
 
@@ -41,18 +42,24 @@ contract KreditsKit is KitBase  {
         Contribution contribution = Contribution(_installApp(dao, appIds[uint8(Apps.Contribution)]));
         contribution.initialize(appIds);
 
-        Proposal proposal = Proposal(_installApp(dao, appIds[uint8(Apps.Proposal)]));
-        proposal.initialize(appIds);
-
         acl.createPermission(root, contribution, contribution.ADD_CONTRIBUTION_ROLE(), this);
         acl.createPermission(root, contribution, contribution.VETO_CONTRIBUTION_ROLE(), this);
         acl.grantPermission(proposal, contribution, contribution.ADD_CONTRIBUTION_ROLE());
 
+        Proposal proposal = Proposal(_installApp(dao, appIds[uint8(Apps.Proposal)]));
+        proposal.initialize(appIds);
+
+        Reimbursement reimbursement = Reimbursement(_installApp(dao, appIds[uint8(Apps.Reimbursement)]));
+        reimbursement.initialize();
+        acl.createPermission(root, reimbursement, reimbursement.ADD_REIMBURSEMENT_ROLE(), this);
+        acl.createPermission(root, reimbursement, reimbursement.VETO_REIMBURSEMENT_ROLE(), this);
+
         uint256[] memory params = new uint256[](1);
         params[0] = uint256(203) << 248 | uint256(1) << 240 | uint240(contributor);
         acl.grantPermissionP(acl.ANY_ENTITY(), contribution, contribution.ADD_CONTRIBUTION_ROLE(), params);
         acl.grantPermissionP(acl.ANY_ENTITY(), contribution, contribution.VETO_CONTRIBUTION_ROLE(), params);
         acl.grantPermissionP(acl.ANY_ENTITY(), contributor, contributor.MANAGE_CONTRIBUTORS_ROLE(), params);
+        acl.grantPermissionP(acl.ANY_ENTITY(), reimbursement, reimbursement.ADD_REIMBURSEMENT_ROLE(), params);
 
         //acl.setPermissionManager(this, proposal, proposal.VOTE_PROPOSAL_ROLE();
         acl.createPermission(root, proposal, proposal.VOTE_PROPOSAL_ROLE(), this);
@@ -67,6 +74,8 @@ contract KreditsKit is KitBase  {
         acl.setPermissionManager(root, contribution, contribution.ADD_CONTRIBUTION_ROLE());
         acl.setPermissionManager(root, contribution, contribution.VETO_CONTRIBUTION_ROLE());
         acl.setPermissionManager(root, contributor, contributor.MANAGE_CONTRIBUTORS_ROLE());
+        acl.setPermissionManager(root, reimbursement, reimbursement.ADD_REIMBURSEMENT_ROLE());
+        acl.setPermissionManager(root, reimbursement, reimbursement.VETO_REIMBURSEMENT_ROLE());
 
         acl.createPermission(root, token, token.MINT_TOKEN_ROLE(), this);
         acl.grantPermission(contribution, token, token.MINT_TOKEN_ROLE());

lib/contracts/index.js

@@ -3,6 +3,7 @@ module.exports = {
   Contribution: require('./contribution'),
   Proposal: require('./proposal'),
   Token: require('./token'),
+  Reimbursement: require('./reimbursement'),
   Kernel: require('./kernel'),
   Acl: require('./acl'),
 };

lib/contracts/reimbursement.js

@@ -0,0 +1,65 @@
+const Record = require('./record');
+const ExpenseSerializer = require('../serializers/expense');
+
+class Reimbursement extends Record {
+  get count () {
+    return this.functions.reimbursementsCount();
+  }
+
+  getById (id) {
+    return this.functions.get(id)
+      .then(data => {
+        return this.ipfs.catAndMerge(data, (ipfsDocument) => {
+          const expenses = JSON.parse(ipfsDocument);
+          return { expenses };
+        });
+      });
+  }
+
+  getData (id) {
+    return this.functions.getReimbursement(id);
+  }
+
+  async add (attrs, callOptions = {}) {
+    const amount = parseInt(attrs.amount);
+    const token = attrs.token;
+    const recipientId = attrs.recipientId;
+    const expenses = attrs.expenses.map( e => new ExpenseSerializer(e) );
+    let errorMessage;
+
+    if (typeof amount !== 'number' || amount <= 0) {
+      errorMessage = 'Invalid data: amount must be a positive number.';
+    }
+    if (!token || token === '') {
+      errorMessage = 'Invalid data: token must be a token address.';
+    }
+    if (!recipientId || recipientId === '') {
+      errorMessage = 'Invalid data: recipientId is required.';
+    }
+    if (expenses.length === 0) {
+      errorMessage = 'Invalid data: at least one expense item is required.';
+    }
+    if (errorMessage) { return Promise.reject(new Error(errorMessage)); }
+
+    return Promise.all(expenses.map(e => e.validate()))
+      .then(() => {
+        const jsonStr = JSON.stringify(expenses.map(e => e.data), null, 2);
+        return this.ipfs
+          .add(jsonStr)
+          .then(ipfsHashAttr => {
+            const reimbursement = [
+              amount,
+              token,
+              parseInt(recipientId),
+              ipfsHashAttr.hashDigest,
+              ipfsHashAttr.hashFunction,
+              ipfsHashAttr.hashSize,
+            ];
+
+            return this.functions.add(...reimbursement, callOptions);
+          });
+      });
+  }
+}
+
+module.exports = Reimbursement;

lib/kredits.js

@@ -6,6 +6,7 @@ const deprecate = require('./utils/deprecate');
 const ABIS = {
   Contributor: require('./abis/Contributor.json'),
   Contribution: require('./abis/Contribution.json'),
+  Reimbursement: require('./abis/Reimbursement.json'),
   Token: require('./abis/Token.json'),
   Proposal: require('./abis/Proposal.json'),
   Kernel: require('./abis/Kernel.json'),
@@ -16,6 +17,7 @@ const APP_CONTRACTS = [
   'Contribution',
   'Token',
   'Proposal',
+  'Reimbursement',
   'Acl',
 ];
 const DaoAddresses = require('./addresses/dao.json');
@@ -121,6 +123,10 @@ class Kredits {
     return this.contractFor('Contribution');
   }
 
+  get Reimbursement () {
+    return this.contractFor('Reimbursement');
+  }
+
   get Acl () {
     return this.contractFor('Acl');
   }

lib/kreditskit.js

@@ -29,7 +29,7 @@ class KreditsKit {
 
   appIdFor (contractName) {
     // see appIds in KreditsKit.sol for more details
-    const knownContracts = ['Contribution', 'Contributor', 'Proposal', 'Token'];
+    const knownContracts = ['Contribution', 'Contributor', 'Proposal', 'Reimbursement', 'Token'];
     return this.contract.appIds(knownContracts.indexOf(contractName));
   }
 

lib/serializers/contribution.js

@@ -1,4 +1,4 @@
-const schemas = require('kosmos-schemas');
+const schemas = require('@kosmos/schemas');
 const validator = require('../utils/validator');
 
 /**

lib/serializers/contributor.js

@@ -1,4 +1,4 @@
-const schemas = require('kosmos-schemas');
+const schemas = require('@kosmos/schemas');
 const validator = require('../utils/validator');
 /**
  * Handle serialization for JSON-LD object of the contributor, according to

lib/serializers/expense.js

@@ -0,0 +1,100 @@
+const schemas = require('@kosmos/schemas');
+const validator = require('../utils/validator');
+
+/**
+ * Serialization and validation for JSON-LD document of the Expense
+ *
+ * @class
+ * @public
+ */
+class ExpenseSerializer {
+
+  constructor (attrs) {
+    Object.keys(attrs).forEach(a => this[a] = attrs[a]);
+  }
+
+  /**
+   * Serialize object to JSON
+   *
+   * @public
+   */
+  serialize () {
+    // Write it pretty to ipfs
+    return JSON.stringify(this.data, null, 2);
+  }
+
+  get data () {
+    const {
+      title,
+      description,
+      currency,
+      amount,
+      date,
+      url,
+      tags,
+      details,
+    } = this;
+
+    const data = {
+      '@context': 'https://schema.kosmos.org',
+      '@type': 'Expense',
+      title,
+      description,
+      currency,
+      amount,
+      date,
+      'tags': tags || [],
+      'details': details || {},
+    };
+
+    if (url) {
+      data['url'] = url;
+    }
+
+    return data;
+  }
+
+  /**
+   * Validate serialized data against schema
+   *
+   * @public
+   */
+  validate () {
+    const serialized = JSON.parse(this.serialize());
+    const valid = validator.validate(serialized, schemas['expense']);
+    return valid ? Promise.resolve() : Promise.reject(validator.error);
+  }
+
+  /**
+   * Deserialize JSON to object
+   *
+   * @public
+   */
+  static deserialize (serialized) {
+    const {
+      title,
+      description,
+      currency,
+      amount,
+      date,
+      url,
+      tags,
+      details,
+    } = JSON.parse(serialized.toString('utf8'));
+
+    return {
+      title,
+      description,
+      currency,
+      amount,
+      date,
+      url,
+      tags,
+      details,
+      ipfsData: serialized,
+    };
+  }
+
+}
+
+module.exports = ExpenseSerializer;

package-lock.json

@@ -575,6 +575,14 @@
         "@ethersproject/strings": "^5.0.0"
       }
     },
+    "@kosmos/schemas": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@kosmos/schemas/-/schemas-3.0.0.tgz",
+      "integrity": "sha512-7hnirq0ShsDjENBPjNnu6izwzVjkDzEZ4SKvPzQJJfkeJ/NRVHKvfdn9rkE7CRXTi2hMzsZVFOnlF6D/eYXTCA==",
+      "requires": {
+        "brfs-babel": "^1.0.0"
+      }
+    },
     "@resolver-engine/core": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/@resolver-engine/core/-/core-0.2.1.tgz",
@@ -5452,14 +5460,6 @@
         "graceful-fs": "^4.1.9"
       }
     },
-    "kosmos-schemas": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/kosmos-schemas/-/kosmos-schemas-2.2.1.tgz",
-      "integrity": "sha512-bZRbwLmJVeaaLqIyJsHbUf7wCjgHP2IhKXH12fD5+1tcw6/bdtZF4nZ41SoVCmdnZnSXh6Fv8nIRT0HksSlj8w==",
-      "requires": {
-        "brfs-babel": "^1.0.0"
-      }
-    },
     "ky": {
       "version": "0.15.0",
       "resolved": "https://registry.npmjs.org/ky/-/ky-0.15.0.tgz",
@@ -9916,4 +9916,4 @@
       }
     }
   }
-}
+}

package.json

@@ -62,7 +62,7 @@
   "dependencies": {
     "ethers": "^5.0.2",
     "ipfs-http-client": "^41.0.1",
-    "kosmos-schemas": "^2.2.1",
+    "@kosmos/schemas": "^3.0.0",
     "node-fetch": "^2.6.0",
     "tv4": "^1.3.0"
   },

scripts/build-json.js

@@ -11,6 +11,7 @@ const files = [
   'Kernel',
   'Proposal',
   'Token',
+  'Reimbursement',
   'ACL'
 ];
 

scripts/list-reimbursements.js

@@ -0,0 +1,52 @@
+const promptly = require('promptly');
+const Table = require('cli-table');
+
+const initKredits = require('./helpers/init_kredits.js');
+
+module.exports = async function(callback) {
+  let kredits;
+  try {
+    kredits = await initKredits(web3);
+  } catch(e) {
+    callback(e);
+    return;
+  }
+
+  console.log(`Using Reimbursement at: ${kredits.Reimbursement.contract.address}`);
+
+  const table = new Table({
+    head: ['ID', 'Amount', 'Token', 'recipientId', 'Confirmed?', 'Vetoed?', 'IPFS', 'Expenses']
+  })
+
+  try {
+    let blockNumber = await kredits.provider.getBlockNumber();
+    let reimbursements = await kredits.Reimbursement.all({page: {size: 1000}});
+
+    let kreditsSum = 0;
+    console.log(`Current block number: ${blockNumber}`);
+    reimbursements.forEach(r => {
+      const confirmed = r.confirmedAtBlock <= blockNumber;
+
+      table.push([
+        r.id.toString(),
+        r.amount.toString(),
+        `${r.token}`,
+        `${r.recipientId}`,
+        `${confirmed}`,
+        `${r.vetoed}`,
+        `${r.ipfsHash}`,
+        `${r.expenses.length}`
+      ]);
+    });
+
+    console.log(table.toString());
+
+    let totalAmountUnconfirmed = await kredits.Reimbursement.functions.totalAmount(false);
+    let totalAmountConfirmed = await kredits.Reimbursement.functions.totalAmount(true);
+    console.log(`Total: ${totalAmountConfirmed} (confirmed) | ${totalAmountUnconfirmed} (including unconfirmed)`);
+  } catch (err) {
+    console.log(err);
+  }
+
+  callback();
+}