re-initiate OAuth process on Refresh Token revoke

YouTube & Spotify track matching accuracy increase

lib/components/Home.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart' hide Page;
 import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:oauth2/oauth2.dart' show AuthorizationException;
 import 'package:spotify/spotify.dart' hide Image;
 import 'package:spotube/components/CategoryCard.dart';
 import 'package:spotube/components/Login.dart';
@@ -12,6 +13,7 @@ import 'package:spotube/components/PageWindowTitleBar.dart';
 import 'package:spotube/components/Player.dart' as player;
 import 'package:spotube/components/Settings.dart';
 import 'package:spotube/components/UserLibrary.dart';
+import 'package:spotube/helpers/oauth-login.dart';
 import 'package:spotube/models/LocalStorageKeys.dart';
 import 'package:spotube/models/sideBarTiles.dart';
 import 'package:spotube/provider/Auth.dart';
@@ -42,18 +44,20 @@ class _HomeState extends State<Home> {
   void initState() {
     super.initState();
     WidgetsBinding.instance?.addPostFrameCallback((timeStamp) async {
+      SharedPreferences localStorage = await SharedPreferences.getInstance();
+      String? clientId = localStorage.getString(LocalStorageKeys.clientId);
+      String? clientSecret =
+          localStorage.getString(LocalStorageKeys.clientSecret);
+      String? accessToken =
+          localStorage.getString(LocalStorageKeys.accessToken);
+      String? refreshToken =
+          localStorage.getString(LocalStorageKeys.refreshToken);
+      String? expirationStr =
+          localStorage.getString(LocalStorageKeys.expiration);
+      DateTime? expiration =
+          expirationStr != null ? DateTime.parse(expirationStr) : null;
       try {
         Auth authProvider = context.read<Auth>();
-        SharedPreferences localStorage = await SharedPreferences.getInstance();
-        var clientId = localStorage.getString(LocalStorageKeys.clientId);
-        var clientSecret =
-            localStorage.getString(LocalStorageKeys.clientSecret);
-        var accessToken = localStorage.getString(LocalStorageKeys.accessToken);
-        var refreshToken =
-            localStorage.getString(LocalStorageKeys.refreshToken);
-        var expirationStr = localStorage.getString(LocalStorageKeys.expiration);
-        var expiration =
-            expirationStr != null ? DateTime.parse(expirationStr) : null;
 
         if (clientId != null && clientSecret != null) {
           SpotifyApi spotifyApi = SpotifyApi(
@@ -103,8 +107,17 @@ class _HomeState extends State<Home> {
             _pagingController.error = e;
           }
         });
-      } catch (e) {
+      } on AuthorizationException catch (e) {
-        print("[login state error]: $e");
+        if (clientId != null && clientSecret != null) {
+          oauthLogin(
+            context,
+            clientId: clientId,
+            clientSecret: clientSecret,
+          );
+        }
+      } catch (e, stack) {
+        print("[Home.initState]: $e");
+        print(stack);
       }
     });
   }

lib/components/Login.dart

@@ -1,16 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
-import 'package:shared_preferences/shared_preferences.dart';
-import 'package:spotify/spotify.dart' hide Image;
-import 'package:spotube/components/Home.dart';
 import 'package:spotube/components/PageWindowTitleBar.dart';
-import 'package:spotube/helpers/server_ipc.dart';
+import 'package:spotube/helpers/oauth-login.dart';
-import 'package:spotube/models/LocalStorageKeys.dart';
 import 'package:spotube/provider/Auth.dart';
 
-const redirectUri = "http://localhost:4304/auth/spotify/callback";
-
 class Login extends StatefulWidget {
+  const Login({Key? key}) : super(key: key);
+
   @override
   _LoginState createState() => _LoginState();
 }
@@ -19,9 +15,6 @@ class _LoginState extends State<Login> {
   String clientId = "";
   String clientSecret = "";
   bool _fieldError = false;
-  String? accessToken;
-  String? refreshToken;
-  DateTime? expiration;
 
   handleLogin(Auth authState) async {
     try {
@@ -30,48 +23,7 @@ class _LoginState extends State<Login> {
           _fieldError = true;
         });
       }
-      final credentials = SpotifyApiCredentials(clientId, clientSecret);
+      await oauthLogin(context, clientId: clientId, clientSecret: clientSecret);
-      final grant = SpotifyApi.authorizationCodeGrant(credentials);
-
-      final authUri = grant.getAuthorizationUrl(Uri.parse(redirectUri),
-          scopes: spotifyScopes);
-
-      final responseUri = await connectIpc(authUri.toString(), redirectUri);
-      SharedPreferences localStorage = await SharedPreferences.getInstance();
-      if (responseUri != null) {
-        final SpotifyApi spotify =
-            SpotifyApi.fromAuthCodeGrant(grant, responseUri);
-        var credentials = await spotify.getCredentials();
-        if (credentials.accessToken != null) {
-          accessToken = credentials.accessToken;
-          await localStorage.setString(
-              LocalStorageKeys.accessToken, credentials.accessToken!);
-        }
-        if (credentials.refreshToken != null) {
-          refreshToken = credentials.refreshToken;
-          await localStorage.setString(
-              LocalStorageKeys.refreshToken, credentials.refreshToken!);
-        }
-        if (credentials.expiration != null) {
-          expiration = credentials.expiration;
-          await localStorage.setString(LocalStorageKeys.expiration,
-              credentials.expiration?.toString() ?? "");
-        }
-      }
-
-      await localStorage.setString(LocalStorageKeys.clientId, clientId);
-      await localStorage.setString(
-        LocalStorageKeys.clientSecret,
-        clientSecret,
-      );
-      authState.setAuthState(
-        clientId: clientId,
-        clientSecret: clientSecret,
-        accessToken: accessToken,
-        refreshToken: refreshToken,
-        expiration: expiration,
-        isLoggedIn: true,
-      );
     } catch (e) {
       print("[Login.handleLogin] $e");
     }

lib/components/Player.dart

@@ -14,6 +14,7 @@ import 'package:spotube/provider/Playback.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:spotube/provider/SpotifyDI.dart';
+import 'package:youtube_explode_dart/youtube_explode_dart.dart';
 
 class Player extends StatefulWidget {
   const Player({Key? key}) : super(key: key);
@@ -32,6 +33,8 @@ class _PlayerState extends State<Player> with WidgetsBindingObserver {
 
   double _volume = 0;
 
+  late YoutubeExplode youtube;
+
   late List<GlobalKeyActions> _hotKeys;
 
   @override
@@ -39,6 +42,7 @@ class _PlayerState extends State<Player> with WidgetsBindingObserver {
     try {
       super.initState();
       player = AudioPlayer();
+      youtube = YoutubeExplode();
       _hotKeys = [
         GlobalKeyActions(
           HotKey(KeyCode.space, scope: HotKeyScope.inapp),
@@ -134,6 +138,7 @@ class _PlayerState extends State<Player> with WidgetsBindingObserver {
   void dispose() {
     WidgetsBinding.instance?.removeObserver(this);
     player.dispose();
+    youtube.close();
     Future.wait(_hotKeys.map((e) => hotKeyManager.unregister(e.hotKey)));
     super.dispose();
   }
@@ -200,7 +205,7 @@ class _PlayerState extends State<Player> with WidgetsBindingObserver {
             });
           });
         }
-        var ytTrack = await toYoutubeTrack(currentTrack);
+        var ytTrack = await toYoutubeTrack(youtube, currentTrack);
         if (playback.setTrackUriById(currentTrack.id!, ytTrack.uri!)) {
           await player
               .setAudioSource(AudioSource.uri(Uri.parse(ytTrack.uri!)))

lib/helpers/oauth-login.dart

@@ -0,0 +1,66 @@
+import 'package:flutter/cupertino.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:spotify/spotify.dart';
+import 'package:spotube/components/Home.dart';
+import 'package:spotube/helpers/server_ipc.dart';
+import 'package:spotube/models/LocalStorageKeys.dart';
+import 'package:spotube/provider/Auth.dart';
+
+const redirectUri = "http://localhost:4304/auth/spotify/callback";
+
+Future<void> oauthLogin(BuildContext context,
+    {required String clientId, required String clientSecret}) async {
+  try {
+    String? accessToken;
+    String? refreshToken;
+    DateTime? expiration;
+    final credentials = SpotifyApiCredentials(clientId, clientSecret);
+    final grant = SpotifyApi.authorizationCodeGrant(credentials);
+
+    final authUri = grant.getAuthorizationUrl(Uri.parse(redirectUri),
+        scopes: spotifyScopes);
+
+    final responseUri = await connectIpc(authUri.toString(), redirectUri);
+    SharedPreferences localStorage = await SharedPreferences.getInstance();
+    if (responseUri != null) {
+      final SpotifyApi spotify =
+          SpotifyApi.fromAuthCodeGrant(grant, responseUri);
+      var credentials = await spotify.getCredentials();
+      if (credentials.accessToken != null) {
+        accessToken = credentials.accessToken;
+        await localStorage.setString(
+            LocalStorageKeys.accessToken, credentials.accessToken!);
+      }
+      if (credentials.refreshToken != null) {
+        refreshToken = credentials.refreshToken;
+        await localStorage.setString(
+            LocalStorageKeys.refreshToken, credentials.refreshToken!);
+      }
+      if (credentials.expiration != null) {
+        expiration = credentials.expiration;
+        await localStorage.setString(LocalStorageKeys.expiration,
+            credentials.expiration?.toString() ?? "");
+      }
+    }
+
+    await localStorage.setString(LocalStorageKeys.clientId, clientId);
+    await localStorage.setString(
+      LocalStorageKeys.clientSecret,
+      clientSecret,
+    );
+
+    Provider.of<Auth>(context, listen: false).setAuthState(
+      clientId: clientId,
+      clientSecret: clientSecret,
+      accessToken: accessToken,
+      refreshToken: refreshToken,
+      expiration: expiration,
+      isLoggedIn: true,
+    );
+  } catch (e, stack) {
+    print("[oauthLogin()] $e");
+    print(stack);
+    rethrow;
+  }
+}

lib/helpers/search-youtube.dart

@@ -1,8 +1,7 @@
 import 'package:spotify/spotify.dart';
 import 'package:youtube_explode_dart/youtube_explode_dart.dart';
 
-YoutubeExplode youtube = YoutubeExplode();
+Future<Track> toYoutubeTrack(YoutubeExplode youtube, Track track) async {
-Future<Track> toYoutubeTrack(Track track) async {
   var artistsName = track.artists?.map((ar) => ar.name).toList() ?? [];
   String queryString =
       "${artistsName.first} - ${track.name}${artistsName.length > 1 ? " feat. ${artistsName.sublist(1).join(" ")}" : ""}";
@@ -10,8 +9,11 @@ Future<Track> toYoutubeTrack(Track track) async {
   SearchList videos = await youtube.search.getVideos(queryString);
 
   List<Video> matchedVideos = videos.where((video) {
-    return video.title.contains(track.name!) &&
+    // the find should be lazy thus everything case insensitive
-        (track.artists?.every((artist) => video.title.contains(artist.name!)) ??
+    return video.title.toLowerCase().contains(track.name!.toLowerCase()) &&
+        (track.artists?.every((artist) => video.title
+                .toLowerCase()
+                .contains(artist.name!.toLowerCase())) ??
             false);
   }).toList();