import 'dart:io';

import 'package:electronic_assistant/base/base_controller.dart';
import 'package:electronic_assistant/data/bean/talks.dart';
import 'package:electronic_assistant/data/repositories/agenda_repository.dart';
import 'package:electronic_assistant/data/repositories/config_repository.dart';
import 'package:electronic_assistant/data/repositories/talk_repository.dart';
import 'package:electronic_assistant/module/main/controller.dart';
import 'package:electronic_assistant/module/talk/view.dart';
import 'package:electronic_assistant/resource/string.gen.dart';
import 'package:electronic_assistant/router/app_pages.dart';
import 'package:electronic_assistant/utils/event_bus.dart';
import 'package:electronic_assistant/widget/pull_to_refresh.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/cupertino.dart';
import 'package:get/get.dart';
import 'package:just_audio/just_audio.dart';
import 'package:uuid/uuid.dart';
import '../../data/api/response/example_info_response.dart';
import '../../data/bean/agenda.dart';
import '../../data/repositories/account_repository.dart';
import '../../dialog/loading_dialog.dart';
import '../../utils/error_handler.dart';
import '../../utils/toast_util.dart';
import 'package:path_provider/path_provider.dart';

class HomePageController extends BaseController {
  get isLogin => accountRepository.isLogin.value;

  get loginTxt => accountRepository.isLogin.value
      ? accountRepository.getUserSubName(accountRepository.phone)
      : StringName.homeGoLogin.tr;

  final refreshController = PullToRefreshController();

  BuildContext? todoTargetContext;

  RxList<TalkBean> get talkList => talkRepository.talkList;

  RxList<Agenda> get agendaList => agendaRepository.agendaList;

  @override
  void onReady() {
    super.onReady();
    refreshController.requestRefresh();

    eventBus.on(EventUserLogin, (arg) {
      requestHomeData();
    });

    eventBus.on(EventUserLogout, (arg) {
      talkRepository.setTalkList([]);
      agendaRepository.setAgendaList([]);
      requestHomeData();
    });
  }

  @override
  void dispose() {
    // TODO: implement dispose
    super.dispose();
    eventBus.off(EventUserLogin);
    eventBus.off(EventUserLogout);
  }

  void requestHomeData() async {
    try {
      if (accountRepository.isLogin.value) {
        await Future.wait([
          talkRepository.refreshHomeTalkData(),
          agendaRepository.requestHomeAgendaData(),
        ]);
      } else {
        ExampleInfoResponse exampleInfo =
            await configRepository.getExampleInfo();
        talkRepository.setTalkList(
            exampleInfo.talkInfoList != null ? exampleInfo.talkInfoList! : []);
        agendaRepository.setAgendaList(
            exampleInfo.agendaList != null ? exampleInfo.agendaList! : []);
      }
    } catch (e) {
      refreshController.refreshCompleted();
      // Handle errors if necessary
    } finally {
      refreshController.refreshCompleted();
    }
  }

  void requestName(String? newName, TalkBean bean) {
    talkRepository.talkRename(bean.id, newName).then((data) {
      bean.title.value = newName;
      ToastUtil.showToast(StringName.talkRenameSuccess.tr);
    }).catchError((error) {
      ErrorHandler.toastError(error, message: StringName.talkRenameFail.tr);
    });
  }

  void goTalkRecordPage() {
    Get.find<MainController>().updateIndexByPageName(StringName.mainTabFile);
  }

  void showLoginDrawer() {
    Get.find<MainController>().openDrawer();
  }

  void requestDelete(TalkBean item) {
    talkRepository.talkDelete(item.id).then((data) {
      requestHomeData();
    }).catchError((error) {
      ErrorHandler.toastError(error, message: StringName.talkDeleteFail.tr);
    });
  }

  void agendaComplete(Agenda item) {
    agendaRepository.agendaFinish(item.id, true).then((data) {
      agendaRepository.removeItem(item);
    }).catchError((error) {
      ErrorHandler.toastError(error);
    });
  }

  void onPickerAudioFile() async {
    if (!accountRepository.isLogin.value) {
      Get.toNamed(RoutePath.login);
      ToastUtil.showToast(StringName.errorCodeNoLogin.tr);
      return;
    }

    FilePickerResult? result = await FilePicker.platform
        .pickFiles(type: FileType.custom, allowedExtensions: [
      'wav',
      'mp3',
      'm4a',
      'flv',
      'mp4',
      'wma',
      '3gp',
      'amr',
      'aac',
      'ogg-opus',
      'flac'
    ]);
    if (result != null) {
      LoadingDialog.show(StringName.fileImporting.tr);
      AudioPlayer? player;
      try {
        String filePath = result.files.single.path!;
        File file = File(filePath);
        //文件不能超过500M
        if (file.lengthSync() > 500 * 1024 * 1024) {
          ToastUtil.showToast(StringName.fileChoiceSizeLimit.tr);
          return;
        }
        player = AudioPlayer();
        player.setAudioSource(AudioSource.uri(file.uri));
        Duration? duration = await player.durationStream
            .firstWhere((duration) => duration != null);
        if (duration == null) {
          ToastUtil.showToast(StringName.fileAudioDurationCannotObtained.tr);
          return;
        }
        //录音时长不能超过5小时
        if (duration.inHours > 5) {
          ToastUtil.showToast(StringName.fileAudioDurationLimit.tr);
          return;
        }
        late TalkBean bean;
        try {
          bean = await talkRepository.talkCreate(
              const Uuid().v4(), duration.inSeconds,
              localAudioUrl: filePath, uploadType: 1);
        } catch (e) {
          ErrorHandler.toastError(e);
          return;
        }
        String childDirName = bean.id;
        Directory dir = await _getChoiceUploadDir(childDirName);

        await moveFileToDirectory(file, dir);

        TalkPage.start(bean);
      } catch (e) {
        ErrorHandler.toastError(e, message: StringName.fileImportFail.tr);
      } finally {
        player?.dispose();
        LoadingDialog.hide();
      }
    }
  }

  Future<void> moveFileToDirectory(File file, Directory dir) async {
    if (!dir.existsSync()) {
      dir.createSync(recursive: true);
    }
    String newFilePath = '${dir.path}/${file.uri.pathSegments.last}';
    file.renameSync(newFilePath);
  }
}

Future<Directory> _getChoiceUploadDir(String talkId) async {
  Directory documentDir = await getApplicationDocumentsDirectory();
  return Directory("${documentDir.path}/.atmob/choice/$talkId");
}

Future<File?> getChoiceUploadFile(String talkId) async {
  Directory dir = await _getChoiceUploadDir(talkId);
  if (!dir.existsSync()) {
    return null;
  }
  List<FileSystemEntity> list = dir.listSync();
  if (list.isEmpty) {
    return null;
  }
  return list.first as File;
}