import 'dart:async';
import 'dart:convert';
import 'dart:io';

import 'package:audio_waveforms/audio_waveforms.dart';
import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart' show rootBundle;
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:path_provider/path_provider.dart';

import '../../../core/utils/synchrodata.dart';
import '../../../data/services/db/sqflite_api.dart';
import '../../../data/services/meeting/meeting_task_service.dart';
import '../../../data/services/meeting/meeting_upload_service.dart';
import '../model/meeting_details_model.dart';
import '../model/meeting_model.dart';

class MeetingDetailsController extends GetxController
    with GetTickerProviderStateMixin {
  late TabController tabController;
  final RxInt currentIndex = 0.obs;

  late AnimationController lottieController;

  final _meetingUploadService = Get.find<MeetingUploadService>();
  final _meetingTaskService = Get.find<MeetingTaskService>();

  final PlayerController playerController = PlayerController();

  StreamSubscription? _currentDurationSubscription;
  StreamSubscription? _playerStateSubscription;

  RxBool isTop = false.obs;
  RxInt durationMax = 0.obs;
  RxDouble dragOffset = 210.w.obs;

  RxBool isPlay = false.obs;
  RxInt currentDuration = 0.obs;

  RxInt speakerAllStarttime = (-1).obs;
  RxInt speakerAllEndtime = (-1).obs;

  int id = 0;

  RxBool isLoading = true.obs;
  Rx<MeetingModel> meetingData = MeetingModel().obs;
  Rx<MeetingDetailsModel> meetingDetails = MeetingDetailsModel().obs;
  RxList textList = [].obs;
  RxBool isSpeakerText = false.obs;
  List editSpeakerTextList = [];
  RxInt editSpeakerTextId = 0.obs;
  String editSpeakerTextChange = '';

  int _everType = 99;
  RxInt summaryNumberModifications = 0.obs;
  RxInt personnelNumberModifications = 0.obs;

  String markmapLibJs = '';
  String d3Js = '';
  String markmapViewJs = '';
  String markmapToolbarJs = '';
  String saveSvgAsPngJs = '';

  RxBool isDownload = false.obs;
  RxDouble downloadProgress = 0.0.obs;

  @override
  void onInit() {
    super.onInit();
    tabController = TabController(length: 4, vsync: this);
    tabController.addListener(() {
      if (currentIndex.value == 2 && tabController.index != 2) {
        FocusScope.of(Get.context!).unfocus();
      }
      currentIndex.value = tabController.index;
    });
    lottieController = AnimationController(vsync: this)
      ..duration = const Duration(seconds: 2);
    final Map<String, dynamic> args = Get.arguments ?? {};
    id = args['id'];
    _meetingTaskService.meetingId = id;
    _getDataDetails();
    _loadJS();
    ever(_meetingTaskService.tasktype, (value) {
      meetingDetails.value.tasktype = value;
      if (_everType <= value) {
        if (value == 2) {
          textList.value = _meetingTaskService.textList;
        } else if (value == 3) {
          meetingDetails.value.summary = _meetingTaskService.summary;
          meetingDetails.value.overview = _meetingTaskService.overview;
          summaryNumberModifications.value++;
        }
      }
      meetingDetails.refresh();
    });
  }

  @override
  void onClose() {
    _currentDurationSubscription?.cancel();
    _playerStateSubscription?.cancel();
    tabController.dispose();
    playerController.dispose();
    lottieController.dispose();
    super.onClose();
  }

  void popInvokedWithResult(didPop, result) async {
    _meetingUploadService.removeUpload(id);
    _meetingTaskService.removeTask(id);
    _meetingTaskService.meetingId = 0;
  }

  void _getDataDetails() async {
    final data = await SqfliteApi.getMeetingDetails(id);
    meetingData.value = MeetingModel.fromJson(data);
    meetingDetails.value = MeetingDetailsModel.fromJson(data['details']);
    _meetingTaskService.tasktype.value = meetingDetails.value.tasktype;
    if (meetingDetails.value.tasktype >= 3) {
      dragOffset.value = 0;
      isTop.value = true;
    }
    if (meetingData.value.filepath.isNotEmpty) {
      await _loadPlayerController();
    }
    if (meetingDetails.value.tasktype >= 2) {
      List speakerList = await SqfliteApi.getMeetingSpeaker(id);
      textList.value = List.from(speakerList);
    }
    isLoading.value = false;
  }

  Future<void> _loadPlayerController() async {
    await playerController.preparePlayer(
      path: meetingData.value.filepath,
      shouldExtractWaveform: false,
      noOfSamples: 88,
    );
    durationMax.value = await playerController.getDuration(DurationType.max);
    playerController.setFinishMode(finishMode: FinishMode.pause);
    _currentDurationSubscription =
        playerController.onCurrentDurationChanged.listen((int position) {
      currentDuration.value = position;
      if (speakerAllEndtime.value > 0) {
        if (position >= speakerAllEndtime.value) {
          playerController.pausePlayer();
          speakerAllStarttime.value = -1;
          speakerAllEndtime.value = -1;
        }
      }
    });
    _playerStateSubscription =
        playerController.onPlayerStateChanged.listen((PlayerState playerState) {
      isPlay.value = playerState.isPlaying;
      if (playerState.isPlaying) {
        lottieController.repeat();
      } else {
        lottieController.stop();
      }
    });
  }

  void _loadJS() async {
    markmapLibJs = await rootBundle.loadString('assets/js/markmap-lib.js');
    d3Js = await rootBundle.loadString('assets/js/d3@7.js');
    markmapViewJs = await rootBundle.loadString('assets/js/markmap-view.js');
    markmapToolbarJs =
        await rootBundle.loadString('assets/js/markmap-toolbar.js');
    saveSvgAsPngJs =
        await rootBundle.loadString('assets/js/saveSvgAsPng.min.js');
  }

  void downloadAudio() async {
    if (isDownload.value) return;
    isDownload.value = true;
    final directory = await getApplicationDocumentsDirectory();
    final directoryDir = Directory('${directory.path}/DownloadAudio');
    if (!await directoryDir.exists()) {
      await directoryDir.create(recursive: true);
    }
    final fileName = meetingData.value.audiourl.split('/').last;
    final String filePath = '${directory.path}/DownloadAudio/$fileName';
    await Dio().download(
      meetingData.value.audiourl,
      filePath,
      onReceiveProgress: (int received, int total) {
        downloadProgress.value = total > 0 ? received / total : 0.0;
      },
    );
    meetingData.value.filepath = filePath;
    meetingData.refresh();
    _loadPlayerController();
    SqfliteApi.editMeetingTitle(id, {'filePath': filePath});
    isDownload.value = false;
  }

  void editSpeakerText() async {
    if (editSpeakerTextId.value != 0 && editSpeakerTextChange.isNotEmpty) {
      Map? foundElement = editSpeakerTextList.firstWhere(
        (element) => element['id'] == editSpeakerTextId.value,
        orElse: () => null,
      );
      if (foundElement != null) {
        foundElement['content'] = editSpeakerTextChange;
      } else {
        editSpeakerTextList.add({
          'id': editSpeakerTextId.value,
          'content': editSpeakerTextChange,
        });
      }
    }
    if (editSpeakerTextList.isNotEmpty) {
      EasyLoading.show();
      var result = await SqfliteApi.editMeetingSpeaker(editSpeakerTextList);
      if (result != null) {
        for (var element in editSpeakerTextList) {
          int index =
              textList.indexWhere((item) => item['id'] == element['id']);
          if (index != -1) {
            final dataMap = Map<String, dynamic>.from(textList[index]);
            dataMap['content'] = element['content'];
            textList[index] = dataMap;
          }
        }
        Synchrodata.saveOperationRecord('update', {
          'original': jsonEncode(textList),
          'id': id,
        });
        isSpeakerText.value = false;
        editSpeakerTextId.value = 0;
        editSpeakerTextList = [];
      }
      EasyLoading.dismiss();
    } else {
      isSpeakerText.value = false;
      editSpeakerTextId.value = 0;
      editSpeakerTextList = [];
    }
  }

  void summaryCreate() async {
    EasyLoading.show();
    _everType = 2;
    String audiourl = meetingData.value.audiourl;
    String taskId = meetingDetails.value.taskid;
    await _meetingTaskService.addTask(id, audiourl, taskId);
    meetingDetails.value.tasktype = 1;
    meetingDetails.refresh();
    EasyLoading.dismiss();
  }

  void refreshSummary() async {
    String text = '';
    for (var element in textList) {
      if (element['speaker'].isNotEmpty) {
        text += '[${element['speaker']}]: ';
      }
      text += '${element['content']}\n';
    }
    _everType = 3;
    await SqfliteApi.editMeeting(id, {'tasktype': 2});
    _meetingTaskService.tasktype.value = 2;
    _meetingTaskService.aiServiceMessage(id, text);
  }
}