476 lines
13 KiB
Dart
476 lines
13 KiB
Dart
import 'dart:async';
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import 'dart:math' as math;
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import 'package:flutter/material.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../../core/providers/app_providers.dart';
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import '../../../core/utils/markdown_to_text.dart';
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import '../services/voice_call_service.dart';
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class VoiceCallPage extends ConsumerStatefulWidget {
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const VoiceCallPage({super.key});
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@override
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ConsumerState<VoiceCallPage> createState() => _VoiceCallPageState();
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}
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class _VoiceCallPageState extends ConsumerState<VoiceCallPage>
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with TickerProviderStateMixin {
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VoiceCallService? _service;
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StreamSubscription<VoiceCallState>? _stateSubscription;
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StreamSubscription<String>? _transcriptSubscription;
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StreamSubscription<String>? _responseSubscription;
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StreamSubscription<int>? _intensitySubscription;
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VoiceCallState _currentState = VoiceCallState.idle;
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String _currentTranscript = '';
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String _currentResponse = '';
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int _currentIntensity = 0;
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late AnimationController _pulseController;
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late AnimationController _waveController;
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@override
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void initState() {
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super.initState();
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_pulseController = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 1500),
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)..repeat(reverse: true);
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_waveController = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 2000),
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)..repeat();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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_initializeCall();
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});
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}
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Future<void> _initializeCall() async {
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try {
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_service = ref.read(voiceCallServiceProvider);
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// Subscribe to service streams
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_stateSubscription = _service!.stateStream.listen((state) {
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if (mounted) {
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setState(() {
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_currentState = state;
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});
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}
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});
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_transcriptSubscription = _service!.transcriptStream.listen((text) {
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if (mounted) {
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setState(() {
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_currentTranscript = text;
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});
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}
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});
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_responseSubscription = _service!.responseStream.listen((text) {
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if (mounted) {
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setState(() {
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_currentResponse = text;
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});
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}
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});
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_intensitySubscription = _service!.intensityStream.listen((intensity) {
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if (mounted) {
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setState(() {
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_currentIntensity = intensity;
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});
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}
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});
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// Initialize and start the call
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await _service!.initialize();
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final activeConversation = ref.read(activeConversationProvider);
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await _service!.startCall(activeConversation?.id);
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} catch (e) {
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if (mounted) {
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_showErrorDialog(e.toString());
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}
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}
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}
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void _showErrorDialog(String message) {
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showDialog(
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context: context,
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builder: (ctx) => AlertDialog(
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title: const Text('Error'),
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content: Text(message),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(ctx).pop();
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if (mounted) {
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Navigator.of(context).pop();
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}
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},
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child: const Text('OK'),
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),
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],
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),
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);
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}
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@override
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void dispose() {
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// Cancel subscriptions (fire and forget)
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_stateSubscription?.cancel();
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_transcriptSubscription?.cancel();
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_responseSubscription?.cancel();
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_intensitySubscription?.cancel();
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_service?.stopCall();
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_pulseController.dispose();
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_waveController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final selectedModel = ref.watch(selectedModelProvider);
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final primaryColor = Theme.of(context).colorScheme.primary;
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final backgroundColor = Theme.of(context).scaffoldBackgroundColor;
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final textColor = Theme.of(context).colorScheme.onSurface;
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return Scaffold(
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backgroundColor: backgroundColor,
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appBar: AppBar(
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title: const Text('Voice Call'),
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leading: IconButton(
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icon: const Icon(CupertinoIcons.xmark),
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onPressed: () async {
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await _service?.stopCall();
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if (!context.mounted) return;
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Navigator.of(context).pop();
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},
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),
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),
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body: SafeArea(
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child: Column(
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children: [
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Expanded(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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// Model name
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Text(
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selectedModel?.name ?? '',
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style: Theme.of(context).textTheme.bodyLarge?.copyWith(
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color: textColor.withValues(alpha: 0.7),
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),
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),
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const SizedBox(height: 48),
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// Animated waveform/status indicator
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_buildStatusIndicator(primaryColor, textColor),
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const SizedBox(height: 48),
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// State label
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Text(
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_getStateLabel(),
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style: Theme.of(context).textTheme.headlineMedium?.copyWith(
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 32),
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// Transcript or response text
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 32),
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child: _buildTextDisplay(textColor),
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),
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// Error state help text
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if (_currentState == VoiceCallState.error)
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Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 32,
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vertical: 16,
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),
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child: Text(
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'Please check:\n'
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'• Microphone permissions are granted\n'
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'• Speech recognition is available on your device\n'
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'• You are connected to the server',
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textAlign: TextAlign.center,
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style: TextStyle(
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fontSize: 14,
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color: Theme.of(context).colorScheme.error,
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height: 1.5,
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),
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),
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),
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],
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),
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),
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// Control buttons
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Padding(
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padding: const EdgeInsets.all(32),
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child: _buildControlButtons(primaryColor),
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),
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],
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),
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),
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);
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}
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Widget _buildStatusIndicator(Color primaryColor, Color textColor) {
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if (_currentState == VoiceCallState.listening) {
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// Animated waveform bars
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return SizedBox(
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height: 120,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: List.generate(5, (index) {
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return AnimatedBuilder(
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animation: _waveController,
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builder: (context, child) {
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final offset = (index * 0.2) % 1.0;
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final animation = (_waveController.value + offset) % 1.0;
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final height =
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20.0 +
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(math.sin(animation * math.pi * 2) * 30.0).abs() +
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(_currentIntensity * 4.0);
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return Container(
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margin: const EdgeInsets.symmetric(horizontal: 4),
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width: 8,
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height: height,
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decoration: BoxDecoration(
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color: primaryColor,
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borderRadius: BorderRadius.circular(4),
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),
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);
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},
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);
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}),
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),
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);
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} else if (_currentState == VoiceCallState.speaking) {
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// Pulsing circle for speaking
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return AnimatedBuilder(
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animation: _pulseController,
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builder: (context, child) {
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final scale = 1.0 + (_pulseController.value * 0.2);
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return Transform.scale(
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scale: scale,
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child: Container(
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width: 120,
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height: 120,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: primaryColor.withValues(alpha: 0.2),
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border: Border.all(color: primaryColor, width: 3),
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),
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child: Center(
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child: Icon(
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CupertinoIcons.speaker_2_fill,
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size: 48,
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color: primaryColor,
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),
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),
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),
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);
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},
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);
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} else if (_currentState == VoiceCallState.processing) {
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// Spinning loader for processing
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return SizedBox(
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width: 120,
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height: 120,
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child: CircularProgressIndicator(
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strokeWidth: 3,
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valueColor: AlwaysStoppedAnimation<Color>(primaryColor),
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),
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);
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} else {
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// Default microphone icon
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return Container(
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width: 120,
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height: 120,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: textColor.withValues(alpha: 0.1),
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),
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child: Icon(
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CupertinoIcons.mic_fill,
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size: 48,
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color: textColor.withValues(alpha: 0.5),
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),
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);
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}
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}
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Widget _buildTextDisplay(Color textColor) {
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String displayText = '';
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if (_currentState == VoiceCallState.listening &&
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_currentTranscript.isNotEmpty) {
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displayText = _currentTranscript;
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} else if (_currentState == VoiceCallState.speaking &&
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_currentResponse.isNotEmpty) {
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// Convert markdown to clean text for display
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displayText = MarkdownToText.convert(_currentResponse);
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}
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if (displayText.isEmpty) {
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return const SizedBox.shrink();
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}
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return Container(
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constraints: const BoxConstraints(maxHeight: 200),
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child: SingleChildScrollView(
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child: Text(
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displayText,
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textAlign: TextAlign.center,
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style: TextStyle(
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fontSize: 16,
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color: textColor.withValues(alpha: 0.8),
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height: 1.5,
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),
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),
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),
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);
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}
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Widget _buildControlButtons(Color primaryColor) {
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final errorColor = Theme.of(context).colorScheme.error;
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final warningColor = Colors.orange;
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final successColor = Theme.of(context).colorScheme.secondary;
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final buttons = <Widget>[];
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// Retry button (only show in error state)
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if (_currentState == VoiceCallState.error) {
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buttons.add(
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_buildActionButton(
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icon: CupertinoIcons.arrow_clockwise,
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label: 'Retry',
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color: primaryColor,
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onPressed: () async {
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await _initializeCall();
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},
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),
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);
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}
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final canPause = _currentState == VoiceCallState.listening;
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final canResume = _currentState == VoiceCallState.paused;
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if (canPause) {
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buttons.add(
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_buildActionButton(
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icon: CupertinoIcons.pause_fill,
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label: 'Pause',
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color: warningColor,
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onPressed: () async {
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await _service?.pauseListening();
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},
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),
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);
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} else if (canResume) {
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buttons.add(
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_buildActionButton(
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icon: CupertinoIcons.play_fill,
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label: 'Resume',
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color: successColor,
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onPressed: () async {
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await _service?.resumeListening();
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},
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),
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);
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}
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// Cancel speaking button (only show when speaking)
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if (_currentState == VoiceCallState.speaking) {
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buttons.add(
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_buildActionButton(
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icon: CupertinoIcons.stop_fill,
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label: 'Stop',
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color: warningColor,
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onPressed: () async {
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await _service?.cancelSpeaking();
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},
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),
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);
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}
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// End call button
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buttons.add(
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_buildActionButton(
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icon: CupertinoIcons.phone_down_fill,
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label: 'End Call',
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color: errorColor,
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onPressed: () async {
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await _service?.stopCall();
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if (mounted) {
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Navigator.of(context).pop();
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}
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},
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),
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);
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return Row(
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mainAxisAlignment: MainAxisAlignment.spaceEvenly,
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children: buttons,
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);
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}
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Widget _buildActionButton({
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required IconData icon,
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required String label,
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required Color color,
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required VoidCallback onPressed,
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}) {
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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GestureDetector(
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onTap: onPressed,
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child: Container(
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width: 64,
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height: 64,
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decoration: BoxDecoration(shape: BoxShape.circle, color: color),
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child: Icon(icon, color: Colors.white, size: 32),
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),
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),
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const SizedBox(height: 8),
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Text(label, style: TextStyle(fontSize: 12, color: color)),
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],
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);
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}
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String _getStateLabel() {
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switch (_currentState) {
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case VoiceCallState.idle:
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return 'Ready';
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case VoiceCallState.connecting:
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return 'Connecting...';
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case VoiceCallState.listening:
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return 'Listening';
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case VoiceCallState.paused:
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return 'Paused';
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case VoiceCallState.processing:
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return 'Thinking...';
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case VoiceCallState.speaking:
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return 'Speaking';
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case VoiceCallState.error:
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return 'Error';
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case VoiceCallState.disconnected:
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return 'Disconnected';
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}
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}
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}
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