v6 initial commit, maybe more to follow

wallet/index.js

@@ -0,0 +1,99 @@
+const ChainUtil = require('../chain-util');
+const CoinTransaction = require('./CoinTransaction');
+const { INITIAL_BALANCE } = require('../config');
+const MetaDataTransaction = require('./MetaDataTransaction');
+const transactionPool = require('./transaction-pool');
+
+class Wallet {
+  constructor() {
+    this.balance = INITIAL_BALANCE;
+    this.keyPair = ChainUtil.genKeyPair();
+    this.publicKey = this.keyPair.getPublic().encode('hex');
+  }
+
+  toString() {
+    return `Wallet -
+      publicKey: ${this.publicKey.toString()}
+      balance  : ${this.balance}`
+  }
+
+  sign(dataHash) {
+    return this.keyPair.sign(dataHash);
+  }
+
+  createCoinTransaction(recipient, amount, blockchain, transactionPool) {
+   // this.balance = this.calculateBalance(blockchain);
+
+   if (amount > this.balance) {
+     console.log(`Amount: ${amount} exceceds current balance: ${this.balance}`);
+     return;
+   }
+
+    let cointransaction = transactionPool.existingPaymentTransaction(this.publicKey);
+
+
+   if (cointransaction) {
+     cointransaction.update(this, recipient, amount); 
+   } else { //this should be the original one
+       //just for test i make the transaction not to update if the sender is the same 
+      cointransaction = CoinTransaction.newCoinTransaction(this, recipient, amount);
+      transactionPool.updateOrAddPaymentTransaction(cointransaction);
+     }
+
+    return cointransaction;
+  }
+  createMetaDataTransaction(Name,Geo ,IP_URL , Topic_Token, Permission, RequestDetail, OrgOwner, DepOwner,PrsnOwner, PaymentPerKbyte, PaymentPerMinute, Protocol, MessageAttributes, Interval,  FurtherDetails, SSNmetadata, transactionPool){
+  /* let metaData = metaDataPool.existingMetaData(this.publicKey);
+
+    if (metaData) {
+      metaData.update(this, Geo, Std, Name,MetaHash,file);
+    } else {*/
+   
+    const metaDataTransaction= MetaDataTransaction.newMetaDataTransaction(this, Name,Geo ,IP_URL , Topic_Token, Permission, RequestDetail, OrgOwner, DepOwner,PrsnOwner, PaymentPerKbyte, PaymentPerMinute, Protocol, MessageAttributes,Interval, FurtherDetails, SSNmetadata);
+    transactionPool.updateOrAddMetaDataTransaction(metaDataTransaction);
+    //}
+    return metaDataTransaction; 
+  } 
+
+  calculateBalance(blockchain) {
+    let balance = this.balance;
+    let cointransactions = [];
+    blockchain.chain.forEach(block => block.data.forEach(cointransaction => {
+      cointransactions.push(cointransaction);
+    }));
+
+    const walletInputTs = cointransactions
+      .filter(cointransaction => cointransaction.input.address === this.publicKey);
+
+    let startTime = 0;
+
+    if (walletInputTs.length > 0) {
+      const recentInputT = walletInputTs.reduce(
+        (prev, current) => prev.input.timestamp > current.input.timestamp ? prev : current
+      );
+
+      balance = recentInputT.outputs.find(output => output.address === this.publicKey).amount;
+      startTime = recentInputT.input.timestamp;
+    }
+
+    cointransactions.forEach(cointransaction => {
+      if (cointransaction.input.timestamp > startTime) {
+        cointransaction.outputs.find(output => {
+          if (output.address === this.publicKey) {
+            balance += output.amount;
+          }
+        });
+      }
+    });
+
+    return balance;
+  }
+
+  static blockchainWallet() {
+    const blockchainWallet = new this();
+    blockchainWallet.address = 'blockchain-wallet';
+    return blockchainWallet;
+  }
+}
+
+module.exports = Wallet;