111 lines
3.7 KiB
Dart
111 lines
3.7 KiB
Dart
import 'dart:convert';
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import '../../youtube_explode_dart.dart';
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import '../extensions/helpers_extension.dart';
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import '../retry.dart';
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import '../reverse_engineering/pages/search_page.dart';
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import 'base_search_content.dart';
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/// YouTube search queries.
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class SearchClient {
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final YoutubeHttpClient _httpClient;
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/// Initializes an instance of [SearchClient]
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SearchClient(this._httpClient);
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/// Enumerates videos returned by the specified search query
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/// (from the video search page).
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/// The videos are sent in batch of 20 videos.
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/// You [SearchList.nextPage] to get the next batch of videos.
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Future<SearchList> getVideos(String searchQuery,
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{SearchFilter filter = const SearchFilter('')}) async {
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final page = await SearchPage.get(_httpClient, searchQuery, filter: filter);
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return SearchList(
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page.searchContent
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.whereType<SearchVideo>()
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.map((e) => Video(
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e.id,
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e.title,
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e.author,
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ChannelId(e.channelId),
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e.uploadDate?.toDateTime(),
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null,
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e.description,
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e.duration.toDuration(),
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ThumbnailSet(e.id.value),
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null,
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Engagement(e.viewCount, null, null),
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e.isLive))
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.toList(),
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page,
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_httpClient);
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}
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/// Enumerates videos returned by the specified search query
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/// (from the video search page).
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/// Contains only instances of [SearchVideo] or [SearchPlaylist]
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@Deprecated(
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'Since version 1.9.0 this is the same as [SearchClient.getVideos].')
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Stream<BaseSearchContent> getVideosFromPage(String searchQuery,
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{bool onlyVideos = true,
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SearchFilter filter = const SearchFilter('')}) async* {
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SearchPage? page;
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// ignore: literal_only_boolean_expressions
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for (;;) {
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if (page == null) {
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page = await retry(
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_httpClient,
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() async =>
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SearchPage.get(_httpClient, searchQuery, filter: filter));
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} else {
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page = await page.nextPage(_httpClient);
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if (page == null) {
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return;
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}
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}
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if (onlyVideos) {
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yield* Stream.fromIterable(
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page!.searchContent.whereType<SearchVideo>());
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} else {
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yield* Stream.fromIterable(page!.searchContent);
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}
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}
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}
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/// Returns the suggestions youtube provide while search on the page.
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Future<List<String>> getQuerySuggestions(String query) async {
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final request = await _httpClient.get(
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'https://suggestqueries-clients6.youtube.com/complete/search?client=youtube&hl=en&gl=en&q=${Uri.encodeComponent(query)}&callback=func');
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final body = request.body;
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final startIndex = body.indexOf('func(');
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final jsonStr = body.substring(startIndex + 5, body.length - 1);
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final data = json.decode(jsonStr) as List<dynamic>;
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final suggestions = data[1] as List<dynamic>;
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return suggestions.map((e) => e[0]).toList().cast<String>();
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}
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/// Queries to YouTube to get the results.
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@Deprecated('Use getVideosFromPage instead - '
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'Should be used only to get related videos')
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Future<SearchQuery> queryFromPage(String searchQuery) =>
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SearchQuery.search(_httpClient, searchQuery);
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}
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/*
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channelId = ChannelId.fromString(channelId);
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var page = await ChannelUploadPage.get(
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_httpClient, channelId.value, videoSorting.code);
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yield* Stream.fromIterable(page.initialData.uploads);
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// ignore: literal_only_boolean_expressions
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while (true) {
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page = await page.nextPage(_httpClient);
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if (page == null) {
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return;
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}
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yield* Stream.fromIterable(page.initialData.uploads);
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}
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*/
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