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import 'package:collection/collection.dart';
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2020-07-10 22:28:19 +02:00
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import 'package:html/dom.dart';
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import 'package:html/parser.dart' as parser;
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2021-07-21 02:06:02 +02:00
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import 'package:youtube_explode_dart/src/reverse_engineering/models/youtube_page.dart';
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import '../../channels/channel_video.dart';
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import '../../exceptions/exceptions.dart';
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import '../../extensions/helpers_extension.dart';
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import '../../retry.dart';
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import '../../videos/videos.dart';
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import '../youtube_http_client.dart';
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import '../models/initial_data.dart';
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///
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class ChannelUploadPage extends YoutubePage<_InitialData> {
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///
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final String channelId;
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late final List<ChannelVideo> uploads = initialData.uploads;
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/// InitialData
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ChannelUploadPage.id(this.channelId, _InitialData? initialData)
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: super(null, null, initialData);
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///
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Future<ChannelUploadPage?> nextPage(YoutubeHttpClient httpClient) async {
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if (initialData.token.isEmpty) {
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return null;
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}
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final data = await httpClient.sendPost('browse', initialData.token);
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return ChannelUploadPage.id(channelId, _InitialData(data));
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}
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///
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static Future<ChannelUploadPage> get(
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YoutubeHttpClient httpClient, String channelId, String sorting) {
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var url =
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'https://www.youtube.com/channel/$channelId/videos?view=0&sort=$sorting&flow=grid';
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return retry(() async {
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var raw = await httpClient.getString(url);
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return ChannelUploadPage.parse(raw, channelId);
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});
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}
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///
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ChannelUploadPage.parse(String raw, this.channelId)
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: super(parser.parse(raw), (root) => _InitialData(root));
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}
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class _InitialData extends InitialData {
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_InitialData(JsonMap root) : super(root);
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late final JsonMap? continuationContext = getContinuationContext();
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late final String token = continuationContext?.getT<String>('token') ?? '';
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late final List<ChannelVideo> uploads = _getUploads();
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List<ChannelVideo> _getUploads() {
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final content = getContentContext();
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if (content.isEmpty) {
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return const <ChannelVideo>[];
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}
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return content.map(_parseContent).whereNotNull().toList();
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}
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List<JsonMap> getContentContext() {
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List<JsonMap>? context;
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if (root.containsKey('contents')) {
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final render = root
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.get('contents')
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?.get('twoColumnBrowseResultsRenderer')
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?.getList('tabs')
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?.map((e) => e['tabRenderer'])
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.cast<JsonMap>()
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.firstWhereOrNull((e) => e['selected'] as bool)
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?.get('content')
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?.get('sectionListRenderer')
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?.getList('contents')
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?.firstOrNull
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?.get('itemSectionRenderer')
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?.getList('contents')
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?.firstOrNull;
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if (render?.containsKey('gridRenderer') ?? false) {
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context =
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render?.get('gridRenderer')?.getList('items')?.cast<JsonMap>();
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} else if (render?.containsKey('messageRenderer') ?? false) {
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// Workaround for no-videos.
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context = const [];
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}
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}
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if (context == null && root.containsKey('onResponseReceivedActions')) {
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context = root
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.getList('onResponseReceivedActions')
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?.firstOrNull
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?.get('appendContinuationItemsAction')
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?.getList('continuationItems')
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?.cast<JsonMap>();
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}
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if (context == null) {
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throw FatalFailureException('Failed to get initial data context.');
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}
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return context;
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}
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JsonMap? getContinuationContext() {
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if (root.containsKey('contents')) {
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return root
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.get('contents')
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?.get('twoColumnBrowseResultsRenderer')
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?.getList('tabs')
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?.map((e) => e['tabRenderer'])
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.cast<JsonMap>()
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.firstWhereOrNull((e) => e['selected'] as bool)
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?.get('content')
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?.get('sectionListRenderer')
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?.getList('contents')
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?.firstOrNull
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?.get('itemSectionRenderer')
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?.getList('contents')
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?.firstOrNull
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?.get('gridRenderer')
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?.getList('items')
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?.firstWhereOrNull((e) => e['continuationItemRenderer'] != null)
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?.get('continuationItemRenderer')
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?.get('continuationEndpoint')
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?.get('continuationCommand');
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}
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if (root.containsKey('onResponseReceivedActions')) {
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return root
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.getList('onResponseReceivedActions')
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?.firstOrNull
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?.get('appendContinuationItemsAction')
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?.getList('continuationItems')
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?.firstWhereOrNull((e) => e['continuationItemRenderer'] != null)
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?.get('continuationItemRenderer')
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?.get('continuationEndpoint')
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?.get('continuationCommand');
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}
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return null;
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}
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ChannelVideo? _parseContent(JsonMap? content) {
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if (content == null || !content.containsKey('gridVideoRenderer')) {
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return null;
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}
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var video = content.get('gridVideoRenderer')!;
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return ChannelVideo(
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VideoId(video.getT<String>('videoId')!),
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video.get('title')?.getT<String>('simpleText') ??
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video.get('title')?.getList('runs')?.map((e) => e['text']).join() ??
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'',
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video
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.getList('thumbnailOverlays')
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?.firstOrNull
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?.get('thumbnailOverlayTimeStatusRenderer')
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?.get('text')
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?.getT<String>('simpleText')
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?.toDuration() ??
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Duration.zero,
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video.get('thumbnail')?.getList('thumbnails')?.last.getT<String>('url') ??
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'',
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video.get('publishedTimeText')?.getT<String>('simpleText') ?? '',
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video.get('viewCountText')?.getT<String>('simpleText')?.parseInt() ?? 0,
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);
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}
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}
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//
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