2020-06-03 23:02:21 +02:00
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import '../extensions/helpers_extension.dart';
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2020-06-05 16:17:08 +02:00
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import '../playlists/playlists.dart';
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2020-06-03 23:02:21 +02:00
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import '../reverse_engineering/responses/responses.dart';
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import '../reverse_engineering/youtube_http_client.dart';
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2020-06-05 16:17:08 +02:00
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import '../videos/video.dart';
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2020-06-03 13:18:37 +02:00
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import '../videos/video_id.dart';
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import 'channel.dart';
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import 'channel_id.dart';
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import 'username.dart';
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/// Queries related to YouTube channels.
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2020-04-18 23:22:13 +02:00
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class ChannelClient {
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2020-06-03 13:18:37 +02:00
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final YoutubeHttpClient _httpClient;
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/// Initializes an instance of [ChannelClient]
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ChannelClient(this._httpClient);
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/// Gets the metadata associated with the specified channel.
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2020-06-05 20:08:04 +02:00
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/// [id] must be either a [ChannelId] or a string
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/// which is parsed to a [ChannelId]
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Future<Channel> get(dynamic id) async {
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2020-06-26 15:30:16 +02:00
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id = ChannelId.fromString(id);
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2020-06-03 13:18:37 +02:00
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var channelPage = await ChannelPage.get(_httpClient, id.value);
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return Channel(id, channelPage.channelTitle, channelPage.channelLogoUrl);
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}
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/// Gets the metadata associated with the channel of the specified user.
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2020-06-05 20:08:04 +02:00
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/// [username] must be either a [Username] or a string
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/// which is parsed to a [Username]
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Future<Channel> getByUsername(dynamic username) async {
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username = Username.fromString(username);
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2020-06-03 13:18:37 +02:00
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var channelPage =
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await ChannelPage.getByUsername(_httpClient, username.value);
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return Channel(ChannelId(channelPage.channelId), channelPage.channelTitle,
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channelPage.channelLogoUrl);
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}
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/// Gets the metadata associated with the channel
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/// that uploaded the specified video.
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2020-06-05 20:08:04 +02:00
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Future<Channel> getByVideo(dynamic videoId) async {
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videoId = VideoId.fromString(videoId);
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var videoInfoResponse =
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await VideoInfoResponse.get(_httpClient, videoId.value);
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2020-06-06 11:28:36 +02:00
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var playerResponse = videoInfoResponse.playerResponse;
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2020-06-03 13:18:37 +02:00
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2020-06-06 11:28:36 +02:00
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var channelId = playerResponse.videoChannelId;
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2020-06-10 00:08:16 +02:00
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return get(ChannelId(channelId));
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2020-06-03 13:18:37 +02:00
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}
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/// Enumerates videos uploaded by the specified channel.
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2020-06-05 16:17:08 +02:00
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Stream<Video> getUploads(ChannelId id) {
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var playlistId = 'UU${id.value.substringAfter('UC')}';
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return PlaylistClient(_httpClient).getVideos(PlaylistId(playlistId));
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2020-06-03 13:18:37 +02:00
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}
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}
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