65 lines
1.7 KiB
Dart
65 lines
1.7 KiB
Dart
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import 'package:html/dom.dart';
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import 'package:youtube_explode_dart/src/reverse_engineering/responses/embed_page.dart';
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class VideoPage {
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final RegExp _videoLikeExp = RegExp(r'label""\s*:\s*""([\d,\.]+) likes');
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final RegExp _videoDislikeExp =
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RegExp(r'label""\s*:\s*""([\d,\.]+) dislikes');
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final Document _root;
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VideoPage(this._root);
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bool get isOk => _root.body.querySelector('#player') != null;
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bool get isVideoAvailable =>
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_root.querySelector('meta[property="og:url"]') != null;
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int get videoLikeCount => int.tryParse(_videoLikeExp
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.firstMatch(_root.text)
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.group(1)
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.nullIfWhitespace
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?.stripNonDigits() ??
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'');
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int get videoDislikeCount => int.tryParse(_videoDislikeExp
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.firstMatch(_root.text)
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.group(1)
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.nullIfWhitespace
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?.stripNonDigits() ??
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'');
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_PlayerConfig get playerConfig => _PlayerConfig.parse(_root.getElementsByTagName('script').map((e) => e.text).map((e) => _extractJson(e)).firstWhere((e) => e != null));
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String _extractJson(String str) {
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var startIndex = str.indexOf('ytplayer.config =');
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var endIndex = str.indexOf(';ytplayer.load =');
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if (startIndex == -1 || endIndex == -1)
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return null;
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return str.substring(startIndex + 17, endIndex);
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}
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}
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class _PlayerConfig {
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}
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extension on String {
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static final _exp = RegExp(r'\D');
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/// Strips out all non digit characters.
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String stripNonDigits() => replaceAll(_exp, '');
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String get nullIfWhitespace => trim().isEmpty ? null : this;
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bool get isNullOrWhiteSpace {
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if (this == null) {
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return true;
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}
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if (trim().isEmpty) {
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return true;
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}
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return false;
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}
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}
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