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343 lines
9.1 KiB
343 lines
9.1 KiB
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'dart:async';
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import 'package:flutter/foundation.dart';
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import '../../../data/services/volcano_tts_api_service.dart';
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class TtsTestController extends GetxController {
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final VolcanoTtsApiService _ttsService = Get.find<VolcanoTtsApiService>();
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// 可观察状态
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final isSpeaking = false.obs;
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final errorMessage = ''.obs;
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final isLoading = false.obs;
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final statusMessage = '未连接'.obs;
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// 添加实际音频播放状态
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final isAudioPlaying = false.obs;
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// 播放状态检查定时器
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Timer? _playbackCheckTimer;
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// 当前播放的索引
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final currentPlayingIndex = RxInt(-1);
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// 固定的播报内容
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final RxList<String> speechTexts = <String>[
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'这是第一条播报测试，请听取合成效果。',
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'这是第二条播报测试，火山语音合成支持连续多条播报。',
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'这是第三条播报测试，可以测试语音合成的流畅度和连贯性。',
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'这是第四条播报测试，感谢您的使用。',
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].obs;
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// 事件订阅
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StreamSubscription? _eventSubscription;
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@override
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void onInit() {
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super.onInit();
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// 初始化UI状态
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isSpeaking.value = false;
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isAudioPlaying.value = false;
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errorMessage.value = '';
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isLoading.value = false;
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// 监听TTS服务状态
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ever(_ttsService.isConnected, (bool connected) {
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if (connected) {
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statusMessage.value = '已连接';
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} else {
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statusMessage.value = '未连接';
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isSpeaking.value = false;
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isAudioPlaying.value = false;
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}
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});
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// 监听TTS合成状态
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ever(_ttsService.isSynthesizing, (bool synthesizing) {
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isSpeaking.value = synthesizing;
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});
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// 监听TTS播放状态
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ever(_ttsService.isPlaying.obs, (bool playing) {
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isAudioPlaying.value = playing;
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if (!playing && currentPlayingIndex.value >= 0) {
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// 如果播放结束，重置当前播放索引
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currentPlayingIndex.value = -1;
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}
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});
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// 设置事件监听
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_setupEventListener();
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// 连接到TTS服务
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_connectToTtsService();
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// 启动播放状态检查定时器
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_startPlaybackCheckTimer();
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}
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// 设置事件监听
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void _setupEventListener() {
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_eventSubscription?.cancel();
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_eventSubscription = _ttsService.eventStream.listen(_handleEvent);
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}
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// 处理事件
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void _handleEvent(Map<String, dynamic> event) {
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final eventType = event['eventType'];
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switch (eventType) {
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case 'connectionStarted':
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statusMessage.value = '连接成功';
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errorMessage.value = '';
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break;
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case 'connectionFailed':
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statusMessage.value = '连接失败';
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errorMessage.value = event['error'] ?? '未知错误';
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break;
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case 'sessionStarted':
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statusMessage.value = '会话开始';
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errorMessage.value = '';
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break;
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case 'sessionFailed':
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statusMessage.value = '会话失败';
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errorMessage.value = event['error'] ?? '未知错误';
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currentPlayingIndex.value = -1;
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break;
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case 'ttsSentenceStart':
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statusMessage.value = '开始合成';
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break;
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case 'ttsSentenceEnd':
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statusMessage.value = '合成完成';
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break;
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case 'sessionFinished':
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statusMessage.value = '会话结束';
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currentPlayingIndex.value = -1;
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break;
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case 'connectionFinished':
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statusMessage.value = '连接关闭';
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currentPlayingIndex.value = -1;
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break;
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case 'error':
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statusMessage.value = '错误';
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errorMessage.value = event['error'] ?? '未知错误';
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break;
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case 'disconnected':
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statusMessage.value = '连接已断开';
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currentPlayingIndex.value = -1;
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break;
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default:
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statusMessage.value = '事件: $eventType';
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break;
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}
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// 强制更新UI
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update();
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}
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// 连接到TTS服务
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Future<void> _connectToTtsService() async {
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try {
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isLoading.value = true;
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statusMessage.value = '正在连接...';
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final success = await _ttsService.connect();
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if (!success) {
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statusMessage.value = '连接失败';
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errorMessage.value = '无法连接到火山语音服务';
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}
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} catch (e) {
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statusMessage.value = '连接错误';
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errorMessage.value = e.toString();
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} finally {
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isLoading.value = false;
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}
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}
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/// 更新UI状态
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void updateUIState() {
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// 强制更新UI
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update();
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}
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/// 播放单条文本
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Future<void> speakText(int index) async {
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if (index < 0 || index >= speechTexts.length || isAudioPlaying.value) {
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return;
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}
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try {
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isLoading.value = true;
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isSpeaking.value = true;
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isAudioPlaying.value = true;
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errorMessage.value = '';
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currentPlayingIndex.value = index;
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final text = speechTexts[index];
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const speaker = 'zh_female_shuangkuaisisi_moon_bigtts';
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// 确保TTS服务已连接
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if (!_ttsService.isConnected.value) {
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await _connectToTtsService();
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}
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// 开始会话
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await _ttsService.startSession(speaker);
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// 播放文本
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await _ttsService.speak(text, speaker: speaker);
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// 结束会话
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await _ttsService.endSession();
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// 确保播放列表被清空
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await _ttsService.stop();
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} catch (e) {
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errorMessage.value = '播放出错';
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if (kDebugMode) {
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print('播放出错: $e');
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}
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} finally {
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isLoading.value = false;
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isSpeaking.value = false;
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isAudioPlaying.value = false;
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currentPlayingIndex.value = -1;
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}
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}
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// 启动播放状态检查定时器
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void _startPlaybackCheckTimer() {
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_playbackCheckTimer?.cancel();
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_playbackCheckTimer = Timer.periodic(const Duration(milliseconds: 200), (timer) {
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// 更新实际播放状态
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final actuallyPlaying = _ttsService.isPlaying;
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isAudioPlaying.value = actuallyPlaying;
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// 如果不再播放，确保重置状态
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if (!actuallyPlaying && isSpeaking.value) {
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// 检查是否真的播放完成了
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if (!_ttsService.isSynthesizing.value && currentPlayingIndex.value >= 0) {
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// 播放已完成，重置状态
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isSpeaking.value = false;
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currentPlayingIndex.value = -1;
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// 更新UI
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update();
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}
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}
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});
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}
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/// 连续播放所有文本
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Future<void> speakContinuousTexts() async {
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if (isAudioPlaying.value || isLoading.value) {
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return;
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}
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try {
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isLoading.value = true;
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isSpeaking.value = true;
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isAudioPlaying.value = true;
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errorMessage.value = '';
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// 确保TTS服务已连接
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if (!_ttsService.isConnected.value) {
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await _connectToTtsService();
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}
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const speaker = 'zh_female_shuangkuaisisi_moon_bigtts';
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// 停止之前的播放
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await _ttsService.stop();
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// 开始会话
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await _ttsService.startSession(speaker);
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// 连续播放所有文本
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for (int i = 0; i < speechTexts.length; i++) {
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// 如果播放被中断，退出循环
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if (!isSpeaking.value) break;
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currentPlayingIndex.value = i;
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statusMessage.value = '正在播放第 ${i + 1}/${speechTexts.length} 条文本';
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// 播放当前文本
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await _ttsService.speak(speechTexts[i], speaker: speaker);
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}
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// 结束会话
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await _ttsService.endSession();
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statusMessage.value = '播放完成';
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} catch (e) {
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errorMessage.value = '播放出错';
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if (kDebugMode) {
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print('连续播放出错: $e');
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}
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// 尝试结束会话，忽略可能的错误
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try {
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await _ttsService.endSession();
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} catch (_) {
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// 忽略结束会话时的错误
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}
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} finally {
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currentPlayingIndex.value = -1;
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isSpeaking.value = false;
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isLoading.value = false;
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// 确保最终状态正确
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isAudioPlaying.value = false;
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// 强制更新UI
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update();
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}
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}
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/// 停止播放
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void stopSpeaking() async {
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try {
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isSpeaking.value = false;
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statusMessage.value = '正在停止播放...';
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// 停止播放
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await _ttsService.stop();
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// 结束会话
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await _ttsService.endSession();
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// 重置UI状态
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currentPlayingIndex.value = -1;
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statusMessage.value = '已停止播放';
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} catch (e) {
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if (kDebugMode) {
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print('停止播放出错: $e');
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}
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errorMessage.value = '停止播放出错';
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} finally {
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isSpeaking.value = false;
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isLoading.value = false;
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isAudioPlaying.value = false;
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}
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}
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@override
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void onClose() {
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// 取消事件订阅
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_eventSubscription?.cancel();
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// 取消播放状态检查定时器
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_playbackCheckTimer?.cancel();
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// 断开TTS服务连接
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_ttsService.disconnect();
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super.onClose();
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}
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}
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