初始化
This commit is contained in:
谢宇宁
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import 'package:hgdj/config/address.dart' as address;
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import 'package:hgdj/hj_model/drama/drama_models.dart';
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import 'package:hgdj/hj_model/video_model.dart';
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import 'package:path/path.dart' as path;
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/// 作品的「一集」：漫画一话 / 小说一章 / 有声一集 / 短剧一集 共用这一个模型，
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/// 所以字段是几种业务的并集，取值时按自己的业务挑（如短剧只关心视频与解锁那几个）
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class MediaContent {
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// ===== 标识 =====
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String? id; //本集 id
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String? mediaId; //所属作品(剧/漫画/小说)的 id
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int? episodeNumber; //第几集/第几话，从 1 开始
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String? name; //集名，如「第1集」
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String? cover; //本集封面，短剧多为空、回退用剧封面
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// ===== 资源 =====
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String? videoUrl; //视频相对路径(m3u8)，要拼 baseApiPath 才能播
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String? h265Url; //H.265 源，为空表示这一集没有 265
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String? audioUrl; //有声书音频，见 realAudioUrl
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List<String>? urlSet; //多清晰度地址集合，短剧下发空数组
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String? text; //小说正文
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String? md5;
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int? playTime; //时长(秒)
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int? mediaSize; //文件字节数
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int? height; //视频高
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int? weight; //视频宽（后端字段就叫 weight，不是重量）
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double? ratio; //宽高比，0 表示后端没算
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// ===== 权限 / 付费 =====
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//0会员 1金币购买 2免费。**只用于展示**，能不能播看 canPlay
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int? listenPermission;
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int? price; //单集金币价，0 为免费
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bool? hasBuy; //本集是否已单独购买过
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bool? isFree; //本集是否免费，别再用整部的 freeEpisode 自己算
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bool? canPlay; //能不能播只认这个字段
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String? accessType; // free 免费 / bought 已购 / card 短剧卡 / coin 未解锁
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DramaPaywall? paywall; //付费墙文案与价格，canPlay=false 时必有，能播时为 null
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bool? isActive; //是否上架，下架的集不该出现在选集面板
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// ===== 试看（feed / list / info 三个接口都下发）=====
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bool? previewEnabled; //这一集配没配试看
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int? previewStart; //试看起播秒数，0 = 从头
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int? previewSeconds; //试看时长(秒)，从 previewStart 起算，到点停下挂付费墙
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String? previewVideoUrl; //试看片地址，与 videoUrl 同格式
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String? previewH265Url; //试看片的 265 源，为空表示没有
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// ===== 统计 =====
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int? countBrowse;
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int? countCollect;
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int? countComment;
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int? countDisLike;
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int? countLike;
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int? countPurchases;
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VidStatus? mediaStatus; //本集的已购/已收藏/已点赞状态
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// ===== 时间 =====
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String? createdAt;
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String? updateTime;
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//只用来造空 model 占位（拉详情失败时页面据此走错误态），字段一律走 fromJson 赋值
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MediaContent();
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MediaContent.fromJson(dynamic json) {
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json ??= {};
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id = json['id'];
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mediaId = json['mediaId'];
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episodeNumber = json['episodeNumber'];
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name = json['name'];
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cover = json['cover'];
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videoUrl = json['videoUrl'];
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h265Url = json['h265Url'];
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audioUrl = json['audioUrl'];
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//用 is List 判而不是 as List：下发 null 或非数组时硬 cast 会抛，整条分集就解析不出来
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final rawUrlSet = json['urlSet'];
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urlSet =
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rawUrlSet is List ? rawUrlSet.map((e) => e.toString()).toList() : [];
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text = json['text'];
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md5 = json['md5'];
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playTime = json['playTime'];
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mediaSize = json['mediaSize'];
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height = json['height'];
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weight = json['weight'];
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//数字直接转；后端也可能下发字符串("1.5")，那时才走 parse，脏值落 null
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final rawRatio = json['ratio'];
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ratio = rawRatio is num
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? rawRatio.toDouble()
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: double.tryParse(rawRatio?.toString() ?? '');
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listenPermission = json['listenPermission'];
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price = json['price'];
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hasBuy = json['hasBuy'];
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isFree = json['isFree'];
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canPlay = json['canPlay'];
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accessType = json['accessType'];
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paywall =
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json['paywall'] != null ? DramaPaywall.fromJson(json['paywall']) : null;
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isActive = json['isActive'];
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previewEnabled = json['previewEnabled'];
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previewStart = json['previewStart'];
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previewSeconds = json['previewSeconds'];
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previewVideoUrl = json['previewVideoUrl'];
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previewH265Url = json['previewH265Url'];
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countBrowse = json['countBrowse'];
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countCollect = json['countCollect'];
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countComment = json['countComment'];
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countDisLike = json['countDisLike'];
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countLike = json['countLike'];
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countPurchases = json['countPurchases'];
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mediaStatus = json['mediaStatus'] != null
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? VidStatus.fromMap(json['mediaStatus'])
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: null;
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createdAt = json['createdAt'];
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updateTime = json['updateTime'];
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}
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/// 只给浏览历史落库用（经 CartoonMediaInfo.toJson → HistoryUtil）。
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/// paywall 和 preview* 都是这次请求的临时状态、下次进来要重新拉，故意不存
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Map<String, dynamic> toJson() {
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return {
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'id': id,
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'mediaId': mediaId,
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'episodeNumber': episodeNumber,
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'name': name,
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'cover': cover,
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'videoUrl': videoUrl,
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'h265Url': h265Url,
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'audioUrl': audioUrl,
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'urlSet': urlSet,
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'text': text,
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'md5': md5,
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'playTime': playTime,
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'mediaSize': mediaSize,
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'height': height,
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'weight': weight,
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'ratio': ratio,
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'listenPermission': listenPermission,
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'price': price,
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'hasBuy': hasBuy,
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'isFree': isFree,
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'canPlay': canPlay,
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'accessType': accessType,
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'isActive': isActive,
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'countBrowse': countBrowse,
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'countCollect': countCollect,
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'countComment': countComment,
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'countDisLike': countDisLike,
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'countLike': countLike,
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'countPurchases': countPurchases,
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if (mediaStatus != null) 'mediaStatus': mediaStatus?.toJson(),
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'createdAt': createdAt,
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'updateTime': updateTime,
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};
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}
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/// 有声书音频完整地址：相对路径要拼音频 CDN，已是 http(s) 的直接用。
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/// 目前有声书播的是 ComicChapterInfo 里的同名实现，这里留着与 audioUrl 字段配套
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String get realAudioUrl {
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final url = audioUrl;
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if (url?.isNotEmpty != true) return '';
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if (url!.startsWith('http')) return url;
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return path.join(address.Address.audioCdnAddress ?? '', url);
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}
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}
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