Implement copy functionality for LNURL and Lightning Address in WalletPage.vue

- Added a copyToClipboard function to enable users to copy LNURL and Lightning Address directly from the wallet interface.
- Enhanced the QR code display to allow clicking for copying the LNURL.
- Introduced visual feedback with icons indicating successful copy actions.

These changes improve user experience by simplifying the process of sharing wallet information.

src/modules/wallet/views/WalletPage.vue

@@ -6,7 +6,7 @@ import { Button } from '@/components/ui/button'
 import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs'
 import { Badge } from '@/components/ui/badge'
 import { ScrollArea } from '@/components/ui/scroll-area'
-import { RefreshCw, Send, QrCode, ArrowUpRight, ArrowDownLeft, Clock, Wallet } from 'lucide-vue-next'
+import { RefreshCw, Send, QrCode, ArrowUpRight, ArrowDownLeft, Clock, Wallet, Copy, Check } from 'lucide-vue-next'
 import ReceiveDialog from '../components/ReceiveDialog.vue'
 import SendDialog from '../components/SendDialog.vue'
 import { format } from 'date-fns'
@@ -16,6 +16,7 @@ import { nip19 } from 'nostr-tools'
 const walletService = injectService(SERVICE_TOKENS.WALLET_SERVICE) as any
 const paymentService = injectService(SERVICE_TOKENS.PAYMENT_SERVICE) as any
 const authService = injectService(SERVICE_TOKENS.AUTH_SERVICE) as any
+const toastService = injectService(SERVICE_TOKENS.TOAST_SERVICE) as any
 
 // State
 const showReceiveDialog = ref(false)
@@ -23,6 +24,7 @@ const showSendDialog = ref(false)
 const selectedTab = ref('transactions')
 const defaultQrCode = ref<string | null>(null)
 const isGeneratingQR = ref(false)
+const copiedField = ref<string | null>(null)
 
 // Computed
 const transactions = computed(() => walletService?.transactions?.value || [])
@@ -119,6 +121,31 @@ async function generateDefaultQR() {
   }
 }
 
+// Copy functionality
+async function copyToClipboard(text: string, field: string) {
+  try {
+    await navigator.clipboard.writeText(text)
+    copiedField.value = field
+    toastService?.success('Copied to clipboard!')
+
+    setTimeout(() => {
+      copiedField.value = null
+    }, 2000)
+  } catch (error) {
+    console.error('Failed to copy:', error)
+    toastService?.error('Failed to copy to clipboard')
+  }
+}
+
+// Click handler for QR code to copy LNURL
+function handleQRClick() {
+  if (firstPayLink.value?.lnurl) {
+    // Encode LNURL with proper bech32 format and lightning: prefix (same as QR code)
+    const encodedLNURL = encodeLNURL(firstPayLink.value.lnurl)
+    copyToClipboard(encodedLNURL, 'qr-lnurl')
+  }
+}
+
 // Initialize on mount
 onMounted(async () => {
   await refresh()
@@ -205,13 +232,18 @@ onMounted(async () => {
             <div v-if="isGeneratingQR" class="w-48 h-48 flex items-center justify-center bg-muted rounded-lg">
               <RefreshCw class="h-8 w-8 animate-spin text-muted-foreground" />
             </div>
-            <div v-else-if="defaultQrCode" class="bg-white p-4 rounded-lg">
+            <div v-else-if="defaultQrCode" class="text-center">
+              <div class="bg-white p-4 rounded-lg cursor-pointer hover:bg-gray-50 transition-colors" @click="handleQRClick" title="Click to copy LNURL">
                 <img
                   :src="defaultQrCode"
                   alt="LNURL QR Code"
                   class="w-48 h-48"
                 />
               </div>
+              <p class="text-xs text-muted-foreground mt-2">
+                Click QR code to copy LNURL
+              </p>
+            </div>
             <div v-else class="w-48 h-48 flex items-center justify-center bg-muted rounded-lg">
               <QrCode class="h-12 w-12 text-muted-foreground opacity-50" />
             </div>
@@ -228,9 +260,21 @@ onMounted(async () => {
 
             <div v-if="firstPayLink.lnaddress">
               <h4 class="font-medium mb-2">Lightning Address</h4>
-              <div class="font-mono text-sm bg-muted px-3 py-2 rounded">
+              <div class="flex gap-2">
+                <div class="font-mono text-sm bg-muted px-3 py-2 rounded flex-1">
                   {{ firstPayLink.lnaddress }}
                 </div>
+                <Button
+                  variant="outline"
+                  size="sm"
+                  @click="copyToClipboard(firstPayLink.lnaddress || '', 'lightning-address')"
+                  class="h-auto px-2"
+                  title="Copy Lightning Address"
+                >
+                  <Check v-if="copiedField === 'lightning-address'" class="h-4 w-4 text-green-600" />
+                  <Copy v-else class="h-4 w-4" />
+                </Button>
+              </div>
             </div>
 
             <Button