import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:hgdj/hj_utils/const.dart';
import 'package:hgdj/tools_base/toast.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';

import '../../hj_model/cartoon_media_info.dart';
import '../../hj_utils/api_service/acg_service.dart';
import '../../hj_utils/history_util.dart';
import '../../routers/jump_router.dart';
import 'audio_player_bottomsheet.dart';
import 'text_novel_read_page.dart';
import 'voice_novel_read_page.dart';
import 'widget/acg_source_manager.dart';

class NovelDetailLogic extends GetxController {
  String id;
  CartoonMediaInfo? model;
  final recommends = [];
  int page = 1;
  RefreshController? refreshCtr;

  bool showHeader = true;
  double showOffset = 100;

  late ACGSourceManager manager;
  late ScrollController scrollCtr = ScrollController()
    ..addListener(() {
      if (scrollCtr.offset <= showOffset) {
        if (!showHeader) {
          showHeader = true;
          update(['header']);
        }
      } else {
        if (showHeader) {
          showHeader = false;
          update(['header']);
        }
      }
    });
  NovelDetailLogic(this.id) : manager = ACGSourceManager(id);

  @override
  void onReady() async {
    super.onReady();
    // 先拿详情（含 freeEpisode），再拉子集，才能正确标记前 N 集免费
    await fetchDetailData();
    update();
    manager.fetchAllEpisodes();
    fetchRecommendData();
  }

  @override
  void onClose() {
    scrollCtr.dispose(); //修复泄漏
    // manager 由页面的 ChangeNotifierProvider(create:) 在卸载时 dispose,本类不再重复释放
    // refreshCtr 由 CustomRefreshView 创建并 dispose,本类只持引用,绝不能再 dispose
    super.onClose();
  }

  Future fetchDetailData() async {
    final result = await ACGService.getMediaInfo(id);
    if (result != null) {
      model = result;
      manager.mediaInfo = result;
      HistoryUtil.insert(model!, MediaStyle.Novel);
    } else {
      model = CartoonMediaInfo();
    }
  }

  // 获取相关推荐
  Future fetchRecommendData() async {
    final result = await ACGService.comicsRecommendList(page, 12,
        tagId: model?.tagDetails?.firstOrNull?.id ?? '', mediaType: 'text');
    if (result != null) {
      page += 1;
      recommends.addAll(result.list ?? []);
    }
    result?.hasNext ?? false
        ? refreshCtr?.loadComplete()
        : refreshCtr?.loadNoData();
    update();
  }

  // 打开所有章节
  episodesBottomSheet() async {
    final result = await Get.bottomSheet(AudioPlayerBottomSheet(
      model?.title ?? '',
      allAudiobooks: manager.allEpisodes,
      currentPlayIndex: manager.index,
      unit: model?.unit,
      hasPermission: model?.hasPermission ?? false,
    ));
    if (result != null) {
      gotoPlay(index: result as int);
    }
  }

  gotoPlay({int index = 0}) async {
    final mediaSubType = model?.mediaSubType ?? -1;
    final opm = await manager
        .getEpisodeHasPermisson(index); //通过时内部已切集，不必再 changeEpisodesIndex
    if (opm != null) {
      //0-默认文本小说 1-有声小说
      if (mediaSubType == 0) {
        Get.to(() => TextNovelReadPage(manager: manager),
            preventDuplicates: false);
      } else if (mediaSubType == 1) {
        Get.to(
            () => VoiceNovelReadPage(
                  manager: manager,
                  id: id,
                  index: index,
                  title: model?.title ?? '',
                ),
            opaque: false,
            preventDuplicates: false);
      }
    }
  }

  // 跳转
  jumpToOtherPage(CartoonMediaInfo info) {
    if (model?.id == info.id) {
      showToast('您当前正在观看此媒体');
      return;
    }
    pushToCartoonPage(info);
  }
}