test001/lib/scenes/translate/TranslateLogic.dart

import 'dart:convert';
import 'dart:io';
import 'dart:typed_data';

import 'package:demo001/scenes/translate/TranslateState.dart';
import 'package:demo001/tools/audio_tool.dart';
import 'package:demo001/xunfei/recognition_result/recognition_content/recognition_content.dart';
import 'package:demo001/xunfei/xunfei_translate.dart';
import 'package:get/get.dart';
import 'package:logger/logger.dart';
import 'package:path_provider/path_provider.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:record/record.dart';

class TranslateLogic extends GetxController {
  late Directory savedirectory;
  final state = TranslateState();
  late XunFeiTranslate xunfei;
  late AudioRecorder _recorder;
  @override
  void onInit() {
    super.onInit();
    _requestPermissions();
    _recorder = AudioRecorder();
    xunfei = XunFeiTranslate(
        appId: "137dc132",
        apiKey: "1c1891a475e71250ecd1320303ad6545",
        apiSecret: "MjZhNDA1NTI1NWZkZDQxOTMxYzMyN2Yw",
        onRecognitionResult: _handleRecognaitionData,
        onStreamtransResult: _handleTranslateData,
        onAudioResult: _handleAudioData);
  }

  // 初始化录音器
  void _initRecorder() async {
    try {
      // 获取外部存储目录路径
      savedirectory = (await getExternalStorageDirectory())!;
      state.isRecorderReady.value = true;
      _log('录音器初始化成功');
    } catch (e) {
      _log('初始化录音器失败: $e');
      state.isRecorderReady.value = false;
    }
  }

  // 请求麦克风权限
  void _requestPermissions() async {
    try {
      if (await Permission.microphone.request().isGranted) {
        _log('麦克风权限已授予');
      } else {
        _log('麦克风权限被拒绝');
      }
    } catch (e) {
      _log('请求麦克风权限失败: $e');
    }
  }

  // 切换按钮状态
  void toggleCallStatus() {
    if (!state.isRecording.value) {
      //开始通话
      _startRecorder();
    } else {
      //结束通话
      _stopRecorder();
    }
    state.isRecording.value = !state.isRecording.value;
  }

  //开始录音
  void _startRecorder() async {
    try {
      if (!state.isRecorderReady.value) {
        _initRecorder();
      }
      if (state.isRecording.value) return; // 防止重复调用
      Stream<Uint8List> dataStream = await _recorder.startStream(RecordConfig(
          sampleRate: 16000, encoder: AudioEncoder.pcm16bits, numChannels: 1));
      xunfei.starttranslate(dataStream);
      state.isRecording.value = true;
      _log('录音开始');
    } catch (e) {
      _log('录音开始 异常: $e');
    }
  }

  //结束录音
  void _stopRecorder() async {
    try {
      if (!state.isRecording.value) return; // 防止重复调用
      await _recorder.stop();
      await _recorder.cancel();
      xunfei.stoptranslate();
      state.isRecorderReady.value = false;
      state.isRecording.value = false;
      _log('录音停止');
    } catch (e) {
      _log('录音停止 异常: $e');
    }
  }

  void _handleRecognaitionData(result) {
    KDXFSentenceModel model;
    try {
      final index = state.kdxfSentenceList.indexWhere((KDXFSentenceModel e) {
        return e.sid == result.header?.sid;
      });
      if (index != -1) {
        model = state.kdxfSentenceList[index];
      } else {
        final recogContextStr = utf8.decode(
            base64Decode(result.payload?.recognitionResults?.text ?? ''));
        final model = RecognitionContent.fromJson(jsonDecode(recogContextStr));
        model = KDXFSentenceModel(
            content: "",
            sid: result.header?.sid ?? '',
            transResult: '',
            audioPath: '',
            perviousWs: model.ws ?? []);
      }
    } catch (e) {
      print("接收识别结果异常 $e");
    }
  }

  void _handleTranslateData(result) {}

  void _handleAudioData(AudioModel model) {}

  void _log(String msg) {
    Logger().f("LIWEI---------------:$msg");
  }
}