tsacdop-podcast-app-android/lib/service/search_api.dart

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import 'dart:convert';
import 'package:convert/convert.dart';
import 'package:crypto/crypto.dart';
import 'package:dio/dio.dart';
import '../.env.dart';
import '../home/about.dart';
import '../type/search_api/index_episode.dart';
import '../type/search_api/index_podcast.dart';
import '../type/search_api/itunes_podcast.dart';
import '../type/search_api/search_top_podcast.dart';
import '../type/search_api/searchepisodes.dart';
import '../type/search_api/searchpodcast.dart';
enum SearchEngine { podcastIndex, listenNotes }
class ListenNotesSearch {
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final _dio = Dio(BaseOptions(connectTimeout: 30000, receiveTimeout: 90000));
final _baseUrl = "https://listen-api.listennotes.com/api/v2/";
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final _apiKey = environment['apiKey'];
Future<SearchPodcast<dynamic>> searchPodcasts(
{String searchText, int nextOffset}) async {
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var url = "${_baseUrl}search?q="
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"${Uri.encodeComponent(searchText)}${"&sort_by_date=0&type=podcast&offset=$nextOffset"}";
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var response = await _dio.get(url,
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options: Options(headers: {
'X-ListenAPI-Key': "$_apiKey",
'Accept': "application/json"
}));
Map searchResultMap = jsonDecode(response.toString());
var searchResult = SearchPodcast.fromJson(searchResultMap);
return searchResult;
}
Future<SearchEpisodes<dynamic>> fetchEpisode(
{String id, int nextEpisodeDate}) async {
var url =
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"${_baseUrl}podcasts/$id?next_episode_pub_date=$nextEpisodeDate";
var response = await _dio.get(url,
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options: Options(headers: {
'X-ListenAPI-Key': "$_apiKey",
'Accept': "application/json"
}));
Map searchResultMap = jsonDecode(response.toString());
var searchResult = SearchEpisodes.fromJson(searchResultMap);
return searchResult;
}
Future<SearchTopPodcast<dynamic>> fetchBestPodcast(
{String genre, int page, String region = 'us'}) async {
var url =
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"${_baseUrl}best_podcasts?genre_id=$genre&page=$page&region=$region";
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var response = await Dio().get(url,
options: Options(headers: {
'X-ListenAPI-Key': "$_apiKey",
'Accept': "application/json"
}));
Map searchResultMap = jsonDecode(response.toString());
var searchResult = SearchTopPodcast.fromJson(searchResultMap);
return searchResult;
}
}
class ItunesSearch {
Future<ItunesSearchResult<dynamic>> searchPodcasts(
{String searchText, int limit}) async {
final url = "https://itunes.apple.com/search?term="
"${Uri.encodeComponent(searchText)}&media=podcast&entity=podcast&limit=$limit";
final response = await Dio()
.get(url, options: Options(headers: {'Accept': "application/json"}));
print(response.toString());
Map searchResultMap = jsonDecode(response.toString());
final searchResult = ItunesSearchResult.fromJson(searchResultMap);
return searchResult;
}
}
class PodcastsIndexSearch {
final _dio = Dio(BaseOptions(connectTimeout: 30000, receiveTimeout: 90000));
final _baseUrl = 'https://api.podcastindex.org';
Map<String, String> _initSearch() {
final unixTime =
(DateTime.now().millisecondsSinceEpoch / 1000).round().toString();
final apiKey = environment['podcastIndexApiKey'];
final apiSecret = environment['podcastIndexApiSecret'];
final firstChunk = utf8.encode(apiKey);
final secondChunk = utf8.encode(apiSecret);
final thirdChunk = utf8.encode(unixTime);
var output = AccumulatorSink<Digest>();
var input = sha1.startChunkedConversion(output);
input.add(firstChunk);
input.add(secondChunk);
input.add(thirdChunk);
input.close();
var digest = output.events.single;
var headers = <String, String>{
"X-Auth-Date": unixTime,
"X-Auth-Key": apiKey,
"Authorization": digest.toString(),
"User-Agent": "Tsacdop/$version"
};
return headers;
}
Future<PodcastIndexSearchResult<dynamic>> searchPodcasts(
{String searchText, int limit = 99}) async {
final url = "$_baseUrl/api/1.0/search/byterm"
"?q=${Uri.encodeComponent(searchText)}&max=$limit&fulltext=true";
final headers = _initSearch();
final response = await _dio.get(url, options: Options(headers: headers));
Map searchResultMap = jsonDecode(response.toString());
final searchResult = PodcastIndexSearchResult.fromJson(searchResultMap);
return searchResult;
}
Future<IndexEpisodeResult<dynamic>> fetchEpisode({String rssUrl}) async {
final url = "$_baseUrl/api/1.0/episodes/byfeedurl?url=$rssUrl";
final headers = _initSearch();
final response = await _dio.get(url, options: Options(headers: headers));
Map searchResultMap = jsonDecode(response.toString());
final searchResult = IndexEpisodeResult.fromJson(searchResultMap);
return searchResult;
}
}