feat(wallet): support bolt11 in bip21

Support lightning invoices that are encoded within a bip21 bitcoin uri

Fix LN-Zap#200

electron/main.js

@@ -56,21 +56,6 @@ let lnurlService
 // Set up a couple of timers to track the app startup progress.
 mainLog.time('Time until app is ready')
 
-/**
- * handleBitcoinLink - Handler for bitcoin: links.
- *
- * @param {string} input Bitcoin link
- */
-const handleBitcoinLink = input => {
-  try {
-    const decoded = bip21.decode(input)
-    zap.sendMessage('bitcoinPaymentUri', decoded)
-    mainWindow.show()
-  } catch (e) {
-    mainLog.warn('Unable to process bitcoin uri: %s', e)
-  }
-}
-
 /**
  * handleLnurlLink - Handler for lightning lnurl links.
  *
@@ -135,6 +120,29 @@ const handleLndconnectLink = input => {
   }
 }
 
+/**
+ * handleBitcoinLink - Handler for bitcoin: links.
+ *
+ * @param {string} input Bitcoin link
+ */
+const handleBitcoinLink = input => {
+  mainLog.info('Attempting to process bitcoin uri: %s', input)
+  try {
+    const decoded = bip21.decode(input)
+    // If the bip21 data includes a bolt11 invoice in the `lightning` key handle as an lightning payment.
+    // Otherwise, use the bitcoin address for on-chain payment.
+    const lightning = get(decoded, 'options.lightning')
+    if (lightning) {
+      handleLninvoiceLink(lightning)
+      return
+    }
+    zap.sendMessage('bitcoinPaymentUri', decoded)
+    mainWindow.show()
+  } catch (e) {
+    mainLog.warn('Unable to process bitcoin uri: %s', e)
+  }
+}
+
 const protocolHandlers = {
   bitcoin: handleBitcoinLink,
   lightning: handleLightningLink,