chore: avoid checking stream accessibility all the time

Only check stream accessible or not when first time it fails or gets blocked

lib/services/sourced_track/enums.dart

@@ -9,9 +9,20 @@ enum SourceCodecs {
 }
 
 enum SourceQualities {
-  high,
-  medium,
-  low,
+  high(2),
+  medium(1),
+  low(0);
+
+  final int priority;
+  const SourceQualities(this.priority);
+
+  bool operator <(SourceQualities other) {
+    return priority < other.priority;
+  }
+
+  operator >(SourceQualities other) {
+    return priority > other.priority;
+  }
 }
 
 typedef SiblingType<T extends TrackSourceInfo> = ({

lib/services/sourced_track/sourced_track.dart

@@ -179,7 +179,7 @@ abstract class SourcedTrack extends BasicSourcedTrack {
     }).toList();
 
     if (sameCodecSources.isNotEmpty) {
-      return preferences.audioQuality != SourceQualities.low
+      return preferences.audioQuality > SourceQualities.low
           ? sameCodecSources.first.url
           : sameCodecSources.last.url;
     }
@@ -190,7 +190,7 @@ abstract class SourcedTrack extends BasicSourcedTrack {
       return aDiff != bDiff ? aDiff - bDiff : a.quality.index - b.quality.index;
     });
 
-    return preferences.audioQuality != SourceQualities.low
+    return preferences.audioQuality > SourceQualities.low
         ? fallbackSource.firstOrNull?.url
         : fallbackSource.lastOrNull?.url;
   }

lib/services/sourced_track/sources/youtube.dart

@@ -1,4 +1,5 @@
 import 'package:collection/collection.dart';
+import 'package:dio/dio.dart';
 import 'package:drift/drift.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:spotube/models/database/database.dart';
@@ -6,6 +7,7 @@ import 'package:spotube/models/playback/track_sources.dart';
 import 'package:spotube/provider/database/database.dart';
 import 'package:spotube/provider/user_preferences/user_preferences_provider.dart';
 import 'package:spotube/provider/youtube_engine/youtube_engine.dart';
+import 'package:spotube/services/dio/dio.dart';
 import 'package:spotube/services/logger/logger.dart';
 import 'package:spotube/services/song_link/song_link.dart';
 import 'package:spotube/services/sourced_track/enums.dart';
@@ -389,14 +391,32 @@ class YoutubeSourcedTrack extends SourcedTrack {
 
   @override
   Future<SourcedTrack> refreshStream() async {
+    List<TrackSource> validStreams = [];
+
+    for (final source in sources) {
+      final res = await globalDio.head(
+        source.url,
+        options:
+            Options(validateStatus: (status) => status != null && status < 500),
+      );
+
+      if (res.statusCode! < 400) {
+        validStreams.add(source);
+      }
+    }
+
+    if (validStreams.isEmpty) {
       final manifest =
           await ref.read(youtubeEngineProvider).getStreamManifest(info.id);
 
+      validStreams = toTrackSources(manifest);
+    }
+
     final sourcedTrack = YoutubeSourcedTrack(
       ref: ref,
       siblings: siblings,
       source: source,
-      sources: toTrackSources(manifest),
+      sources: validStreams,
       info: info,
       query: query,
     );

lib/services/youtube_engine/youtube_explode_engine.dart

@@ -1,9 +1,6 @@
 import 'dart:isolate';
 
-import 'package:dio/dio.dart';
 import 'package:flutter/foundation.dart';
-import 'package:spotube/services/dio/dio.dart';
-import 'package:spotube/services/logger/logger.dart';
 import 'package:spotube/services/youtube_engine/youtube_engine.dart';
 import 'package:youtube_explode_dart/youtube_explode_dart.dart';
 
@@ -170,31 +167,13 @@ class YouTubeExplodeEngine implements YouTubeEngine {
       ],
     );
 
-    final accessibleStreams = <AudioOnlyStreamInfo>[];
-    final stringBuffer = StringBuffer();
-
-    for (final stream in streamManifest.audioOnly) {
-      // Call dio head request to check if the stream is accessible
-      final response = await globalDio.headUri(
-        stream.url,
-        options: Options(
-          followRedirects: true,
-          validateStatus: (status) {
-            return status != null && status < 500;
-          },
-        ),
+    final audioStreams = streamManifest.audioOnly.where(
+      (stream) => stream.bitrate.bitsPerSecond >= 40960,
     );
 
-      stringBuffer.writeln(
-        "Stream $videoId Status ${response.statusCode} Codec ${stream.audioCodec} "
-        "Bitrate ${stream.bitrate} Container ${stream.container}",
-      );
-
-      if (response.statusCode != null &&
-          response.statusCode! >= 200 &&
-          response.statusCode! < 400) {
-        accessibleStreams.add(
-          AudioOnlyStreamInfo(
+    return StreamManifest(
+      audioStreams.map(
+        (stream) => AudioOnlyStreamInfo(
           stream.videoId,
           stream.tag,
           stream.url,
@@ -211,14 +190,9 @@ class YouTubeExplodeEngine implements YouTubeEngine {
           stream.codec,
           stream.audioTrack,
         ),
+      ),
     );
   }
-    }
-
-    AppLogger.log.d(stringBuffer.toString());
-
-    return StreamManifest(accessibleStreams);
-  }
 
   @override
   Future<Video> getVideo(String videoId) async {