Store lastAdress and lastIndex for better sync

src/actions/accounts.js

@@ -20,7 +20,10 @@ export const fetchAccounts: FetchAccounts = () => ({
   payload: db('accounts'),
 })
 
-const setAccountData = createAction('SET_ACCOUNT_DATA', (accountID, data) => ({ accountID, data }))
+const setAccountData = createAction('DB:SET_ACCOUNT_DATA', (accountID, data) => ({
+  accountID,
+  data,
+}))
 
 export const syncAccount: Function = account => async (dispatch: Dispatch<*>) => {
   const { id, ...data } = account

src/components/AccountPage.js

@@ -39,7 +39,7 @@ class AccountPage extends PureComponent<Props> {
                 <Card title="Balance">{format(accountData.balance)}</Card>
               </Box>
               <Box flex={1}>
-                <Card title="Receive" />
+                <Card title="Receive">{accountData.address}</Card>
               </Box>
             </Box>
             <Card title="Last operations">

src/components/modals/AddAccount.js

@@ -219,16 +219,13 @@ class AddAccountModal extends PureComponent<Props, State> {
     const { inputValue, accounts } = this.state
     const { addAccount, closeModal } = this.props
 
-    const { id, balance, transactions } = accounts[index]
+    const { id, ...data } = accounts[index]
 
     addAccount({
       id,
       name: inputValue.accountName,
       type: inputValue.wallet,
-      data: {
+      data,
-        balance,
-        transactions,
-      },
     })
 
     closeModal('add-account')

src/helpers/btc.js

@@ -32,13 +32,26 @@ export const networks = [
 ]
 
 export function computeTransaction(addresses: Array<*>) {
+  // return (transaction: Object) => {
+  //   const outputVal = transaction.outputs
+  //     .filter(o => addresses.includes(o.address))
+  //     .reduce((acc, cur) => acc + cur.value, 0)
+  //   const inputVal = transaction.inputs
+  //     .filter(i => addresses.includes(i.address))
+  //     .reduce((acc, cur) => acc + cur.value, 0)
+  //   const balance = outputVal - inputVal
+  //   return {
+  //     ...transaction,
+  //     balance,
+  //   }
+  // }
   return (transaction: Object) => {
-    const outputVal = transaction.outputs
+    const outputVal = transaction.out
-      .filter(o => addresses.includes(o.address))
+      .filter(o => addresses.includes(o.addr))
       .reduce((acc, cur) => acc + cur.value, 0)
     const inputVal = transaction.inputs
-      .filter(i => addresses.includes(i.address))
+      .filter(i => addresses.includes(i.prev_out.addr))
-      .reduce((acc, cur) => acc + cur.value, 0)
+      .reduce((acc, cur) => acc + cur.prev_out.value, 0)
     const balance = outputVal - inputVal
     return {
       ...transaction,
@@ -47,7 +60,7 @@ export function computeTransaction(addresses: Array<*>) {
   }
 }
 
-export function getTransactions(addresses: Array<Object>) {
+export function getTransactions(addresses: Array<string>) {
   // return axios.get(
   //   `http://api.ledgerwallet.com/blockchain/v2/btc_testnet/addresses/${addresses.join(
   //     ',',
@@ -67,6 +80,7 @@ export async function getAccount({
   segwit: boolean,
   network: Object,
 }) {
+  const gapLimit = 20
   const script = segwit ? parseInt(network.scriptHash, 10) : parseInt(network.pubKeyHash, 10)
 
   let transactions = []
@@ -105,11 +119,9 @@ export async function getAccount({
     return getAddress({ type: 'external', index: address.index + 1 })
   }
 
-  const nextPath = (index = 0) => {
+  const nextPath = (index = 0) =>
-    const gapLimit = 20
+    Promise.all(
-
+      Array.from(new Array(gapLimit).keys()).map(v =>
-    return Promise.all(
-      Array.from(Array(gapLimit).keys()).map(v =>
         Promise.all([
           getAddress({ type: 'external', index: v + index }),
           getAddress({ type: 'internal', index: v + index }),
@@ -117,13 +129,14 @@ export async function getAccount({
       ),
     ).then(async results => {
       const addresses = results.reduce((result, v) => [...result, ...v], [])
+
       const listAddresses = addresses.map(a => a.address)
 
       const { txs } = await getTransactions(listAddresses)
 
       const hasTransactions = txs.length > 0
 
-      transactions = [...transactions, ...txs.map(listAddresses)]
+      transactions = [...transactions, ...txs.map(computeTransaction(listAddresses))]
       lastAddress = hasTransactions ? getLastAddress(addresses, txs[0].out[0]) : lastAddress
 
       if (hasTransactions) {
@@ -144,7 +157,6 @@ export async function getAccount({
           : {}),
       }
     })
-  }
 
   return nextPath(currentIndex)
 }

src/internals/accounts/sync.js

@@ -8,9 +8,9 @@ export default (send: Function) => ({
 
     send('accounts.sync.progress', null, { kill: false })
 
-    const syncAccount = ({ id }) => {
+    const syncAccount = ({ id, currentIndex }) => {
       const hdnode = getHDNode({ xpub58: id, network })
-      return getAccount({ hdnode, network, segwit: true }).then(account => ({
+      return getAccount({ currentIndex, hdnode, network, segwit: true }).then(account => ({
         id,
         ...account,
       }))

src/internals/usb/wallet/accounts.js

@@ -113,21 +113,20 @@ export default async ({
     }
 
     const hdnode = getHDNode({ xpub58, network })
-    const { transactions, balance } = await getAccount({ hdnode, network, segwit })
+    const account = await getAccount({ hdnode, network, segwit })
 
     onProgress({
       account: currentAccount,
-      transactions: transactions.length,
+      transactions: account.transactions.length,
     })
 
-    const hasTransactions = transactions.length > 0
+    const hasTransactions = account.transactions.length > 0
 
     // If the first account is empty we still add it
     if (currentAccount === 0 || hasTransactions) {
       accounts[currentAccount] = {
         id: xpub58,
-        balance,
+        ...account,
-        transactions,
       }
     }
 

src/reducers/accounts.js

@@ -22,13 +22,28 @@ const handlers: Object = {
   SET_ACCOUNT_DATA: (
     state: AccountsState,
     { payload: { accountID, data } }: { payload: { accountID: string, data: AccountData } },
-  ): AccountsState => ({
+  ): AccountsState => {
-    ...state,
+    const account = state[accountID]
-    [accountID]: {
+
-      ...state[accountID],
+    const balance = get(account.data, 'balance', 0)
-      data,
+    const transactions = get(account.data, 'transactions', [])
-    },
+    const currentIndex = data.currentIndex
-  }),
+      ? data.currentIndex
+      : get(account.data, 'currentIndex', 0)
+
+    account.data = {
+      ...account.data,
+      ...data,
+      balance: balance + data.balance,
+      currentIndex,
+      transactions: [...transactions, ...data.transactions],
+    }
+
+    return {
+      ...state,
+      [accountID]: account,
+    }
+  },
 }
 
 // Selectors

src/renderer/events.js

@@ -14,7 +14,7 @@ type MsgPayload = {
 
 // wait a bit before launching update check
 const CHECK_UPDATE_TIMEOUT = 3e3
-const SYNC_ACCOUNT_TIMEOUT = 1e3
+const SYNC_ACCOUNT_TIMEOUT = 5e3
 
 export function sendEvent(channel: string, msgType: string, data: any) {
   ipcRenderer.send(channel, {
@@ -32,8 +32,9 @@ export function sendSyncEvent(channel: string, msgType: string, data: any): any
 
 function syncAccounts(accounts) {
   sendEvent('accounts', 'sync.all', {
-    accounts: Object.entries(accounts).map(([id]: [string, any]) => ({
+    accounts: Object.entries(accounts).map(([id, account]: [string, any]) => ({
       id,
+      currentIndex: account.data.currentIndex,
     })),
   })
 }

src/types/common.js

@@ -18,7 +18,9 @@ export type Transaction = {
 // -------------------- Accounts
 
 export type AccountData = {
+  address: string,
   balance: number,
+  currentIndex: number,
   transactions: Array<Transaction>,
 }