feat(wallet): bolt11 invoices encoded in bip21 uri

Support lightning invoices that are encoded within a bip21 bitcoin uri.

Fix LN-Zap#200

electron/main.js

@@ -62,6 +62,7 @@ mainLog.time('Time until app is ready')
  * @param {string} input Bitcoin link
  */
 const handleBitcoinLink = input => {
+  mainLog.info('Attempting to process bitcoin uri: %s', input)
   try {
     const decoded = bip21.decode(input)
     zap.sendMessage('bitcoinPaymentUri', decoded)

renderer/reducers/pay.js

@@ -107,8 +107,17 @@ export const lightningPaymentUri = (event, { address }) => (dispatch, getState)
  * @param  {{ address, options }} options Decoded bip21 payment url
  * @returns {Function} Thunk
  */
-export const bitcoinPaymentUri = (event, { address, options: { amount } }) => dispatch => {
-  dispatch(setRedirectPayReq({ address, amount }))
+export const bitcoinPaymentUri = (event, { address, options = {} }) => dispatch => {
+  // If the bip21 data includes a bolt11 invoice in the `lightning` key handle as a lightning payment.
+  const { lightning } = options
+  if (lightning) {
+    dispatch(lightningPaymentUri(event, { address: lightning }))
+  }
+  // Otherwise, use the bitcoin address for on-chain payment.
+  else {
+    const { amount } = options
+    dispatch(setRedirectPayReq({ address, amount }))
+  }
 }
 
 /**