feature(lnd-ipc): ipc for invoice + balance

app/lnd/index.js

@@ -59,9 +59,45 @@ export function payments() {
   })
 }
 
+// LND Get Invoices
+export function invoices() {
+  return new Promise((resolve, reject) => {
+    lnd.listInvoices({}, (err, data) => {
+      if (err) { reject(err) }
+      
+      resolve(data)
+    })
+  })
+}
+
+// LND Get Wallet Balance
+const walletBalance = new Promise((resolve, reject) => {
+  lnd.walletBalance({}, (err, data) => {
+    if (err) { reject(err) }
+
+    resolve(data)
+  })
+})
+
+// LND Get Channel Balance
+const channelBalance = new Promise((resolve, reject) => {
+  lnd.channelBalance({}, (err, data) => {
+    if (err) { reject(err) }
+
+    resolve(data)
+  })
+})
+
+// LND Get Wallet + Channel Balance
+export function balance() {
+  return Promise.all([walletBalance, channelBalance])
+}
+
 export default {
   info,
   peers,
   allChannels,
-  payments
+  payments,
+  invoices,
+  balance
 }

app/main.dev.js

@@ -117,6 +117,18 @@ ipcMain.on('lnd', (event, { msg, data }) => {
       .then(payments => event.sender.send('receivePayments', payments))
       .catch(error => console.log('info error: ', error))
       break
+    case 'invoices':
+      // Data looks like { invoices: [] }
+      lnd.invoices()
+      .then(invoices => event.sender.send('receiveInvoices', invoices))
+      .catch(error => console.log('info error: ', error))
+      break
+    case 'balance':
+      // Balance looks like [ { balance: '129477456' }, { balance: '243914' } ]
+      lnd.balance()
+      .then(balance => event.sender.send('receiveBalance', { walletBalance: balance[0].balance, channelBalance: balance[1].balance }))
+      .catch(error => console.log('info error: ', error))
+      break
     default:
       return
   }

app/reducers/balance.js

@@ -1,3 +1,4 @@
+import { ipcRenderer } from 'electron'
 import { callApis } from '../api'
 // ------------------------------------
 // Constants
@@ -14,20 +15,14 @@ export function getBalance() {
   }
 }
 
-export function receiveBalance(data) {
-  return {
-    type: RECEIVE_BALANCE,
-    walletBalance: data[0].data.balance,
-    channelBalance: data[1].data.balance
-  }
-}
-
 export const fetchBalance = () => async (dispatch) => {
   dispatch(getBalance())
-  const balance = await callApis(['wallet_balance', 'channel_balance'])
-  dispatch(receiveBalance(balance))
+  ipcRenderer.send('lnd', { msg: 'balance' })
 }
 
+// Receive IPC event for peers
+export const receiveBalance = (event, { walletBalance, channelBalance }) => dispatch => dispatch({ type: RECEIVE_BALANCE, walletBalance, channelBalance  })
+
 // ------------------------------------
 // Action Handlers
 // ------------------------------------

app/reducers/invoice.js

@@ -1,4 +1,5 @@
 import { createSelector } from 'reselect'
+import { ipcRenderer } from 'electron'
 import { callApi } from '../api'
 import { btc, usd } from '../utils'
 // ------------------------------------
@@ -63,13 +64,6 @@ export function getInvoices() {
   }
 }
 
-export function receiveInvoices(data) {
-  return {
-    type: RECEIVE_INVOICES,
-    invoices: data.invoices.reverse()
-  }
-}
-
 export function sendInvoice() {
   return {
     type: SEND_INVOICE
@@ -101,17 +95,14 @@ export const fetchInvoice = payreq => async (dispatch) => {
   return false
 }
 
+// Send IPC event for invoices
 export const fetchInvoices = () => async (dispatch) => {
-  dispatch(getInvoice())
-  const invoices = await callApi('invoices')
-  if (invoices) {
-    dispatch(receiveInvoices(invoices.data))
-  } else {
-    dispatch(invoiceFailed())
+  dispatch(getInvoices())
+  ipcRenderer.send('lnd', { msg: 'invoices' })
 }
 
-  return invoices
-}
+// Receive IPC event for invoices
+export const receiveInvoices = (event, { invoices }) => dispatch => dispatch({ type: RECEIVE_INVOICES, invoices })
 
 export const createInvoice = (amount, memo, currency, rate) => async (dispatch) => {
   const value = currency === 'btc' ? btc.btcToSatoshis(amount) : btc.btcToSatoshis(usd.usdToBtc(amount, rate))

app/reducers/ipc.js

@@ -3,13 +3,17 @@ import { receiveInfo } from './info'
 import { receivePeers } from './peers'
 import { receiveChannels } from './channels'
 import { receivePayments } from './payment'
+import { receiveInvoices } from './invoice'
+import { receiveBalance } from './balance'
 
 // Import all receiving IPC event handlers and pass them into createIpc
 const ipc = createIpc({
   'receiveInfo': receiveInfo,
   'receivePeers': receivePeers,
   'receiveChannels': receiveChannels,
-  'receivePayments': receivePayments
+  'receivePayments': receivePayments,
+  'receiveInvoices': receiveInvoices,
+  'receiveBalance': receiveBalance
 })
 
 export default ipc

app/reducers/payment.js

@@ -49,13 +49,13 @@ export function paymentFailed() {
   }
 }
 
-// Send IPC event for peers
+// Send IPC event for payments
 export const fetchPayments = () => async (dispatch) => {
   dispatch(getPayments())
   ipcRenderer.send('lnd', { msg: 'payments' })
 }
 
-// Receive IPC event for peers
+// Receive IPC event for payments
 export const receivePayments = (event, { payments }) => dispatch => dispatch({ type: RECEIVE_PAYMENTS, payments })
 
 export const payInvoice = payment_request => async (dispatch) => {