Support multiple expenses in one reimburesement

apps/reimbursement/contracts/Reimbursement.sol

@@ -60,12 +60,13 @@ contract Reimbursement is AragonApp {
     );
   }
 
-  function add(uint256 amount, address token, bytes32 hashDigest, uint8 hashFunction, uint8 hashSize) public isInitialized auth(ADD_REIMBURSEMENT_ROLE) {
+  function add(uint256 amount, address token, address recipient, 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.recipient = recipient;
     r.hashDigest = hashDigest;
     r.hashFunction = hashFunction;
     r.hashSize = hashSize;

config/seeds.js

@@ -39,7 +39,8 @@ const contractCalls = [
   ['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 }]],
 
-  ['Reimbursement', 'add', [{title: 'Server Hosting', description: 'All the serverz', amount: 1, token: '0xa3048576e296207eb0141f2803590ad044f81928', currency: 'WBTC', date: '2020-05-28'}, { gasLimit: 300000 }]],
+  ['Reimbursement', 'add', [{amount: 100, recipient: '0x7e8f313c56f809188313aa274fa67ee58c31515d', token: '0xa3048576e296207eb0141f2803590ad044f81928', expenses: [{title: 'Server Hosting', description: 'All the serverz', amount: 100, currency: 'EUR', date: '2020-05-28'}]}, { gasLimit: 300000 }]],
+  ['Reimbursement', 'add', [{amount: 10, recipient: '0xa502eb4021f3b9ab62f75b57a94e1cfbf81fd827', token: '0xa3048576e296207eb0141f2803590ad044f81928', expenses: [{title: 'Domain', description: 'All the domain', amount: 10, currency: 'EUR', date: '2020-05-28'}]}, { gasLimit: 300000 }]],
 ];
 
 const funds = [

lib/contracts/reimbursement.js

@@ -9,7 +9,10 @@ class Reimbursement extends Record {
   getById (id) {
     return this.functions.get(id)
       .then(data => {
-        return this.ipfs.catAndMerge(data, ExpenseSerializer.deserialize);
+        return this.ipfs.catAndMerge(data, (ipfsDocument) => {
+          const expenses = JSON.parse(ipfsDocument);
+          return { expenses };
+        });
       });
   }
 
@@ -18,26 +21,32 @@ class Reimbursement extends Record {
   }
 
   async add (attrs, callOptions = {}) {
-    const reimbursement = new ExpenseSerializer(attrs);
+    const amount = parseInt(attrs.amount);
+    const token = attrs.token;
+    const recipient = attrs.recipient;
+    const expenses = attrs.expenses.map( e => new ExpenseSerializer(e) );
 
-    try { await reimbursement.validate(); }
-    catch (error) { return Promise.reject(error); }
+    if (!amount > 0 || !token || token === '' || !recipient || recipient === '' || !expenses.length > 0) {
+      return Promise.reject(new Error('Invalid data. amount, token, expenses is required.'));
+    }
 
-    const jsonStr = reimbursement.serialize();
+    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 => {
+            let reimbursement = [
+              amount,
+              token,
+              recipient,
+              ipfsHashAttr.hashDigest,
+              ipfsHashAttr.hashFunction,
+              ipfsHashAttr.hashSize,
+            ];
 
-    return this.ipfs
-      .add(jsonStr)
-      .then(ipfsHashAttr => {
-        let reimbursement = [
-          attrs.amount,
-          attrs.token,
-          ipfsHashAttr.hashDigest,
-          ipfsHashAttr.hashFunction,
-          ipfsHashAttr.hashSize,
-        ];
-
-        console.log(reimbursement)
-        return this.functions.add(...reimbursement, callOptions);
+            return this.functions.add(...reimbursement, callOptions);
+          });
       });
   }
 }

lib/serializers/expense.js

@@ -20,6 +20,11 @@ class Expense {
    * @public
    */
   serialize () {
+    // Write it pretty to ipfs
+    return JSON.stringify(this.data, null, 2);
+  }
+
+  get data () {
     let {
       title,
       description,
@@ -47,8 +52,7 @@ class Expense {
       data['url'] = url;
     }
 
-    // Write it pretty to ipfs
-    return JSON.stringify(data, null, 2);
+    return data;
   }
 
   /**
@@ -58,7 +62,6 @@ class Expense {
    */
   validate () {
     const serialized = JSON.parse(this.serialize());
-    console.log(schemas['expense']);
     const valid = validator.validate(serialized, schemas['expense']);
     return valid ? Promise.resolve() : Promise.reject(validator.error);
   }

scripts/list-reimbursements.js

@@ -15,7 +15,7 @@ module.exports = async function(callback) {
   console.log(`Using Reimbursement at: ${kredits.Reimbursement.contract.address}`);
 
   const table = new Table({
-    head: ['ID', 'Title', 'Description', 'Amount', 'Token', 'Recipent', 'Confirmed?', 'Vetoed?', 'Claimed?', 'IPFS']
+    head: ['ID', 'Amount', 'Token', 'Recipent', 'Confirmed?', 'Vetoed?', 'IPFS', 'Expenses']
   })
 
   try {
@@ -24,21 +24,19 @@ module.exports = async function(callback) {
 
     let kreditsSum = 0;
     console.log(`Current block number: ${blockNumber}`);
-    reimbursements.forEach((r) => {
+    reimbursements.forEach(r => {
       const confirmed = r.confirmedAtBlock <= blockNumber;
 
       table.push([
         r.id.toString(),
-        `${r.title}`,
-        `${r.description}`,
         r.amount.toString(),
         `${r.token}`,
         `${r.recipient}`,
-        `${confirmed} (${r.confirmedAtBlock})`,
-        r.vetoed,
-        r.claimed,
-        r.ipfsHash
-      ])
+        `${confirmed}`,
+        `${r.vetoed}`,
+        `${r.ipfsHash}`,
+        `${r.expenses.length}`
+      ]);
     });
 
     console.log(table.toString());