import 'package:demo001/plugin/xunfei/audiotranslate/audiotranslate.dart';
import 'package:demo001/plugin/xunfei/audiotranslate/result_audio.dart';
import 'package:demo001/plugin/xunfei/audiotranslate/result_test.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});
  final String title;
  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  late Xunfei_AudioTranslation xunfei;
  String _result = "";
// 在 initState 中初始化
  @override
  void initState() {
    super.initState();
    xunfei = new Xunfei_AudioTranslation(
      appId: "137dc132",
      apiKey: "1c1891a475e71250ecd1320303ad6545",
      apiSecret: "MjZhNDA1NTI1NWZkZDQxOTMxYzMyN2Yw",
      onResponse: _onResponse,
    );
  }

  void _onResponse(Xunfei_AudioTranslation_Result_Text text,
      Xunfei_AudioTranslation_Result_Audio audio) {
    setState(() {
      _result = "接受消息:${text.result()}";
    });
  }

  //测试链接
  Future<void> _connectTest() async {
    await xunfei.start();
    setState(() {
      _result = "链接状态:${xunfei.state}";
    });
  }

  // 读取本地文件转流对象
  Stream<List<int>> _getAudioStream() async* {
    // 从 assets 中读取音频文件
    final byteData = await rootBundle.load('assests/original.pcm');
    final buffer = byteData.buffer.asUint8List();

    // 按块生成流，块大小为 frameSize
    int frameSize = 1280; // 每一帧的音频大小
    for (int i = 0; i < buffer.length; i += frameSize) {
      int end =
          (i + frameSize <= buffer.length) ? i + frameSize : buffer.length;
      yield buffer.sublist(i, end);
    }
  }

  //测试翻译
  Future<void> _translationTest() async {
    Stream<List<int>> audioStream = _getAudioStream();
    await xunfei.pushaudio(audioStream);
  }

  //测试录音
  void _recordTest() {}

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              '测试结果',
            ),
            Text(
              _result,
              style: Theme.of(context).textTheme.headlineMedium,
            ),
          ],
        ),
      ),
      // 页面底部的按钮
      bottomNavigationBar: Padding(
        padding: const EdgeInsets.all(8.0),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.spaceAround, // 按钮等距排列
          children: <Widget>[
            ElevatedButton(
              onPressed: _connectTest,
              child: const Text('测试链接'),
            ),
            ElevatedButton(
              onPressed: _translationTest,
              child: const Text('测试翻译'),
            ),
            ElevatedButton(
              onPressed: _recordTest,
              child: const Text('测试录音'),
            ),
          ],
        ),
      ),
    );
  }
}