Jetpack DataStore, Dependency Injection.

app/build.gradle

@@ -134,6 +134,9 @@ dependencies {
     implementation "dev.chrisbanes.accompanist:accompanist-coil:$coil_version"
     implementation "dev.chrisbanes.accompanist:accompanist-insets:$coil_version"
 
+    //DataStore
+    implementation "androidx.datastore:datastore-preferences:1.0.0-alpha05"
+
     //Extras
     implementation 'me.xdrop:fuzzywuzzy:1.3.1'
     implementation 'com.mpatric:mp3agic:0.9.1'

app/src/main/AndroidManifest.xml

@@ -41,10 +41,13 @@
             android:launchMode="singleTask">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-                <data android:mimeType="text/plain" />
-                <action android:name="android.intent.action.SEND" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
+            <intent-filter>
+                <category android:name="android.intent.category.DEFAULT" />
+                <action android:name="android.intent.action.SEND" />
+                <data android:mimeType="text/plain" />
+            </intent-filter>
         </activity>
 
         <!-- Add your API key here -->

app/src/main/java/com/shabinder/spotiflyer/MainActivity.kt

@@ -28,8 +28,9 @@ import androidx.lifecycle.viewModelScope
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.rememberNavController
 import com.example.jetcaster.util.verticalGradientScrim
+import com.shabinder.spotiflyer.models.spotify.Token
 import com.shabinder.spotiflyer.navigation.ComposeNavigation
-import com.shabinder.spotiflyer.navigation.navigateToPlatform
+import com.shabinder.spotiflyer.navigation.navigateToTrackList
 import com.shabinder.spotiflyer.networking.SpotifyService
 import com.shabinder.spotiflyer.networking.SpotifyServiceTokenRequest
 import com.shabinder.spotiflyer.ui.ComposeLearnTheme
@@ -40,7 +41,10 @@ import com.squareup.moshi.Moshi
 import dagger.hilt.android.AndroidEntryPoint
 import dev.chrisbanes.accompanist.insets.ProvideWindowInsets
 import dev.chrisbanes.accompanist.insets.statusBarsHeight
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.flow.firstOrNull
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
 import okhttp3.Interceptor
 import okhttp3.OkHttpClient
 import okhttp3.Request
@@ -69,14 +73,12 @@ class MainActivity : AppCompatActivity() {
             ComposeLearnTheme {
                 Providers(AmbientContentColor provides colorOffWhite) {
                     ProvideWindowInsets {
-                        val appBarColor = MaterialTheme.colors.surface.copy(alpha = 0.6f)
+                        val appBarColor = MaterialTheme.colors.surface.copy(alpha = 0.7f)
                         navController = rememberNavController()
 
-                        val gradientColor by sharedViewModel.gradientColor.collectAsState()
-
                         Column(
                             modifier = Modifier.fillMaxSize().verticalGradientScrim(
-                                color = gradientColor.copy(alpha = 0.38f),
+                                color = sharedViewModel.gradientColor.copy(alpha = 0.38f),
                                 startYPercentage = 1f,
                                 endYPercentage = 0f,
                                 fixedHeight = 700f,
@@ -101,7 +103,6 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun initialize() {
-        authenticateSpotify()
         requestStoragePermission()
         disableDozeMode()
         //checkIfLatestVersion()
@@ -147,50 +148,12 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
-    /**
-     * Adding my own Spotify Web Api Requests!
-     * */
-    private fun implementSpotifyService(token: String) {
-        val httpClient: OkHttpClient.Builder = OkHttpClient.Builder()
-        httpClient.addInterceptor(Interceptor { chain ->
-            val request: Request =
-                chain.request().newBuilder().addHeader(
-                    "Authorization",
-                    "Bearer $token"
-                ).build()
-            chain.proceed(request)
-        }).addInterceptor(NetworkInterceptor())
-
-        val retrofit = Retrofit.Builder().run{
-            baseUrl("https://api.spotify.com/v1/")
-            client(httpClient.build())
-            addConverterFactory(MoshiConverterFactory.create(moshi))
-            build()
-        }
-        sharedViewModel.spotifyService.value = retrofit.create(SpotifyService::class.java)
-    }
-
-    fun authenticateSpotify() {
-        if(sharedViewModel.spotifyService.value == null){
-            sharedViewModel.viewModelScope.launch {
-                log("Spotify Authentication","Started")
-                val token = spotifyServiceTokenRequest.getToken()
-                token.value?.let {
-                    showDialog1("Success: Spotify Token Acquired")
-                    implementSpotifyService(it.access_token)
-                }
-                log("Spotify Token", token.value.toString())
-            }
-        }
-    }
-
-
     private fun handleIntentFromExternalActivity(intent: Intent? = getIntent()) {
         if (intent?.action == Intent.ACTION_SEND) {
             if ("text/plain" == intent.type) {
                 intent.getStringExtra(Intent.EXTRA_TEXT)?.let {
                     log("Intent Received", it)
-                    navController.navigateToPlatform(it)
+                    navController.navigateToTrackList(it)
                 }
             }
         }

app/src/main/java/com/shabinder/spotiflyer/SharedViewModel.kt

@@ -17,41 +17,42 @@
 
 package com.shabinder.spotiflyer
 
-import androidx.compose.material.MaterialTheme
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.graphics.Color
 import androidx.hilt.lifecycle.ViewModelInject
-import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import com.github.kiulian.downloader.YoutubeDownloader
 import com.shabinder.spotiflyer.database.DatabaseDAO
-import com.shabinder.spotiflyer.models.PlatformQueryResult
 import com.shabinder.spotiflyer.networking.GaanaInterface
 import com.shabinder.spotiflyer.networking.SpotifyService
-import com.shabinder.spotiflyer.ui.colorPrimary
 import com.shabinder.spotiflyer.ui.colorPrimaryDark
-import com.shabinder.spotiflyer.ui.home.HomeCategory
 import dagger.hilt.android.scopes.ActivityRetainedScoped
-import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
 
 @ActivityRetainedScoped
 class SharedViewModel @ViewModelInject constructor(
     val databaseDAO: DatabaseDAO,
+    val spotifyService: SpotifyService,
     val gaanaInterface : GaanaInterface,
     val ytDownloader: YoutubeDownloader
 ) : ViewModel() {
-    var spotifyService = MutableStateFlow<SpotifyService?>(null)
+    var isAuthenticated by mutableStateOf(false)
+        private set
 
-    private val _gradientColor = MutableStateFlow(colorPrimaryDark)
+    fun authenticated(s:Boolean) {
-    val gradientColor : StateFlow<Color>
+        isAuthenticated = s
-        get() = _gradientColor
+    }
+
+    var gradientColor by mutableStateOf(colorPrimaryDark)
+    private set
 
     fun updateGradientColor(color: Color) {
-        _gradientColor.value = color
+        gradientColor = color
     }
 
     fun resetGradient() {
-        _gradientColor.value = colorPrimaryDark
+        gradientColor = colorPrimaryDark
     }
 }

app/src/main/java/com/shabinder/spotiflyer/models/PlatformQueryResult.kt

@@ -1,9 +1,12 @@
 package com.shabinder.spotiflyer.models
 
+import com.shabinder.spotiflyer.models.spotify.Source
+
 data class PlatformQueryResult(
     var folderType: String,
     var subFolder: String,
     var title: String,
     var coverUrl: String,
-    var trackList: List<TrackDetails>
+    var trackList: List<TrackDetails>,
+    var source: Source
 )

app/src/main/java/com/shabinder/spotiflyer/models/spotify/Token.kt

@@ -18,11 +18,12 @@
 package com.shabinder.spotiflyer.models.spotify
 
 import android.os.Parcelable
+import com.squareup.moshi.Json
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
 data class Token(
-    var access_token:String,
+    var access_token:String?,
-    var token_type:String,
+    var token_type:String?,
-    var expires_in:Int
+    @Json(name = "expires_in") var expiry:Long?
 ): Parcelable

app/src/main/java/com/shabinder/spotiflyer/navigation/ComposeNavigation.kt

@@ -7,12 +7,7 @@ import androidx.navigation.NavType
 import androidx.navigation.compose.*
 import androidx.navigation.compose.popUpTo
 import com.shabinder.spotiflyer.ui.home.Home
-import com.shabinder.spotiflyer.ui.platforms.gaana.Gaana
+import com.shabinder.spotiflyer.ui.tracklist.TrackList
-import com.shabinder.spotiflyer.ui.platforms.spotify.Spotify
-import com.shabinder.spotiflyer.ui.platforms.youtube.Youtube
-import com.shabinder.spotiflyer.utils.mainActivity
-import com.shabinder.spotiflyer.utils.sharedViewModel
-import com.shabinder.spotiflyer.utils.showDialog
 
 @Composable
 fun ComposeNavigation(navController: NavHostController) {
@@ -29,34 +24,10 @@ fun ComposeNavigation(navController: NavHostController) {
         //Spotify Screen
         //Argument `link` = Link of Track/Album/Playlist
         composable(
-            "spotify/{link}",
+            "track_list/{link}",
             arguments = listOf(navArgument("link") { type = NavType.StringType })
         ) {
-            Spotify(
+            TrackList(
-                fullLink = it.arguments?.getString("link") ?: "error",
-                navController = navController
-            )
-        }
-
-        //Gaana Screen
-        //Argument `link` = Link of Track/Album/Playlist
-        composable(
-            "gaana/{link}",
-            arguments = listOf(navArgument("link") { type = NavType.StringType })
-        ) {
-            Gaana(
-                fullLink = it.arguments?.getString("link") ?: "error",
-                navController = navController
-            )
-        }
-
-        //Youtube Screen
-        //Argument `link` = Link of Track/Album/Playlist
-        composable(
-            "youtube/{link}",
-            arguments = listOf(navArgument("link") { type = NavType.StringType })
-        ) {
-            Youtube(
                 fullLink = it.arguments?.getString("link") ?: "error",
                 navController = navController
             )
@@ -64,34 +35,10 @@ fun ComposeNavigation(navController: NavHostController) {
     }
 }
 
-fun NavController.navigateToPlatform(link:String){
+fun NavController.navigateToTrackList(link:String, singleInstance: Boolean = true, inclusive:Boolean = false) {
-    when{
+    navigate("track_list/$link") {
-        //SPOTIFY
-        link.contains("spotify",true) -> {
-            if(sharedViewModel.spotifyService.value == null){//Authentication pending!!
-                mainActivity.authenticateSpotify()
-            }
-            this.navigateAndPopUpToHome("spotify/$link")
-        }
-
-        //YOUTUBE
-        link.contains("youtube.com",true) || link.contains("youtu.be",true) -> {
-            this.navigateAndPopUpToHome("youtube/$link")
-        }
-
-        //GAANA
-        link.contains("gaana",true) -> {
-            this.navigateAndPopUpToHome("gaana/$link")
-        }
-
-        else -> showDialog("Link is Not Valid")
-    }
-}
-
-fun NavController.navigateAndPopUpToHome(route:String, inclusive:Boolean = false,singleInstance:Boolean = true){
-    this.navigate(route){
         launchSingleTop = singleInstance
-        popUpTo(route = "home"){
+        popUpTo(route = "home") {
             this.inclusive = inclusive
         }
     }

app/src/main/java/com/shabinder/spotiflyer/networking/SpotifyAuthInterceptor.kt

@@ -0,0 +1,40 @@
+package com.shabinder.spotiflyer.networking
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import com.shabinder.spotiflyer.models.spotify.Token
+import com.shabinder.spotiflyer.utils.TokenStore
+import com.shabinder.spotiflyer.utils.log
+import com.shabinder.spotiflyer.utils.showDialog
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.runBlocking
+import okhttp3.Interceptor
+import okhttp3.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Interceptor which adds authorization token in header.
+ */
+@Singleton
+class SpotifyAuthInterceptor @Inject constructor(
+    private val tokenStore: TokenStore,
+) : Interceptor {
+    /*
+    * Local Copy for Token
+    * Live Throughout Session
+    * */
+    private var token by mutableStateOf<Token?>(null)
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        if(token?.expiry?:0 < System.currentTimeMillis()/1000){
+            //Token Expired time to fetch New One
+            runBlocking { token = tokenStore.getToken() }
+            log("Spotify Auth",token.toString())
+        }
+        val authRequest = chain.request().newBuilder().
+        addHeader("Authorization", "Bearer ${token?.access_token}").build()
+        return chain.proceed(authRequest)
+    }
+}

app/src/main/java/com/shabinder/spotiflyer/providers/GaanaProvider.kt

@@ -15,7 +15,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package com.shabinder.spotiflyer.ui.platforms.gaana
+package com.shabinder.spotiflyer.providers
 
 import com.shabinder.spotiflyer.database.DatabaseDAO
 import com.shabinder.spotiflyer.database.DownloadRecord
@@ -25,15 +25,39 @@ import com.shabinder.spotiflyer.models.TrackDetails
 import com.shabinder.spotiflyer.models.gaana.GaanaTrack
 import com.shabinder.spotiflyer.models.spotify.Source
 import com.shabinder.spotiflyer.networking.GaanaInterface
+import com.shabinder.spotiflyer.utils.*
 import com.shabinder.spotiflyer.utils.Provider.imageDir
-import com.shabinder.spotiflyer.utils.finalOutputDir
-import com.shabinder.spotiflyer.utils.queryActiveTracks
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import java.io.File
 
 private const val gaanaPlaceholderImageUrl = "https://a10.gaanacdn.com/images/social/gaana_social.jpg"
 
+suspend fun queryGaana(
+    fullLink: String,
+):PlatformQueryResult?{
+
+    //Link Schema: https://gaana.com/type/link
+    val gaanaLink = fullLink.substringAfter("gaana.com/")
+
+    val link = gaanaLink.substringAfterLast('/', "error")
+    val type = gaanaLink.substringBeforeLast('/', "error").substringAfterLast('/')
+
+    log("Gaana Fragment", "$type : $link")
+
+    //Error
+    if (type == "Error" || link == "Error"){
+        showDialog("Please Check Your Link!")
+        return null
+    }
+    return gaanaSearch(
+        type,
+        link,
+        sharedViewModel.gaanaInterface,
+        sharedViewModel.databaseDAO,
+    )
+}
+
 suspend fun gaanaSearch(
     type:String,
     link:String,
@@ -46,6 +70,7 @@ suspend fun gaanaSearch(
         title = link,
         coverUrl = gaanaPlaceholderImageUrl,
         trackList = listOf(),
+        Source.Gaana
     )
     with(result) {
         when (type) {

app/src/main/java/com/shabinder/spotiflyer/providers/SpotifyProvider.kt

@@ -15,9 +15,10 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package com.shabinder.spotiflyer.ui.platforms.spotify
+package com.shabinder.spotiflyer.providers
 
 import androidx.annotation.WorkerThread
+import androidx.compose.runtime.Composable
 import com.shabinder.spotiflyer.database.DatabaseDAO
 import com.shabinder.spotiflyer.database.DownloadRecord
 import com.shabinder.spotiflyer.models.DownloadStatus
@@ -34,6 +35,40 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import java.io.File
 
+suspend fun querySpotify(fullLink: String):PlatformQueryResult?{
+    var spotifyLink =
+        "https://" + fullLink.substringAfterLast("https://").substringBefore(" ").trim()
+
+    if (!spotifyLink.contains("open.spotify")) {
+        //Very Rare instance
+        spotifyLink = resolveLink(spotifyLink, sharedViewModel.gaanaInterface)
+    }
+
+
+    val link = spotifyLink.substringAfterLast('/', "Error").substringBefore('?')
+    val type = spotifyLink.substringBeforeLast('/', "Error").substringAfterLast('/')
+
+    log("Spotify Fragment", "$type : $link")
+
+    if (type == "Error" || link == "Error") {
+        showDialog("Please Check Your Link!")
+        return null
+    }
+
+    if (type == "episode" || type == "show") {
+        //TODO Implementation
+        showDialog("Implementing Soon, Stay Tuned!")
+        return null
+    }
+
+    return spotifySearch(
+        type,
+        link,
+        sharedViewModel.spotifyService,
+        sharedViewModel.databaseDAO
+    )
+}
+
 suspend fun spotifySearch(
     type:String,
     link: String,
@@ -46,6 +81,7 @@ suspend fun spotifySearch(
         title = "",
         coverUrl = "",
         trackList = listOf(),
+        Source.Spotify
     )
     with(result) {
         when (type) {
@@ -192,6 +228,10 @@ suspend fun spotifySearch(
     return result
 }
 
+/*
+* New Link Schema: https://link.tospotify.com/kqTBblrjQbb,
+* Fetching Standard Link: https://open.spotify.com/playlist/37i9dQZF1DX9RwfGbeGQwP?si=iWz7B1tETiunDntnDo3lSQ&amp;_branch_match_id=862039436205270630
+* */
 @WorkerThread
 fun resolveLink(
     url:String,

app/src/main/java/com/shabinder/spotiflyer/providers/YoutubeProvider.kt

@@ -15,7 +15,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package com.shabinder.spotiflyer.ui.platforms.youtube
+package com.shabinder.spotiflyer.providers
 
 import android.annotation.SuppressLint
 import com.github.kiulian.downloader.YoutubeDownloader
@@ -37,6 +37,43 @@ import java.io.File
 * Normal Url: https://i.ytimg.com/vi/$searchId/hqdefault.jpg"
 * */
 
+private const val sampleDomain2 = "youtu.be"
+private const val sampleDomain1 = "youtube.com"
+
+/*
+* Sending a Result as null = Some Error Occurred!
+* */
+suspend fun queryYoutube(fullLink: String): PlatformQueryResult?{
+    val link = fullLink.removePrefix("https://").removePrefix("http://")
+    if(link.contains("playlist",true) || link.contains("list",true)){
+        // Given Link is of a Playlist
+        val playlistId = link.substringAfter("?list=").substringAfter("&list=").substringBefore("&")
+        return getYTPlaylist(
+            playlistId,
+            sharedViewModel.ytDownloader,
+            sharedViewModel.databaseDAO
+        )
+    }else{//Given Link is of a Video
+        var searchId = "error"
+        if(link.contains(sampleDomain1,true) ){
+            searchId =  link.substringAfterLast("=","error")
+        }
+        if(link.contains(sampleDomain2,true) ){
+            searchId = link.substringAfterLast("/","error")
+        }
+        return if(searchId != "error") {
+            getYTTrack(
+                searchId,
+                sharedViewModel.ytDownloader,
+                sharedViewModel.databaseDAO
+            )
+        }else{
+            showDialog("Your Youtube Link is not of a Video!!")
+            null
+        }
+    }
+}
+
 suspend fun getYTPlaylist(
     searchId: String,
     ytDownloader: YoutubeDownloader,
@@ -48,6 +85,7 @@ suspend fun getYTPlaylist(
         title = "",
         coverUrl = "",
         trackList = listOf(),
+        Source.YouTube
     )
     with(result) {
         try {
@@ -127,6 +165,7 @@ suspend fun getYTTrack(
         title = "",
         coverUrl = "",
         trackList = listOf(),
+        Source.YouTube
     )
     with(result) {
         try {

app/src/main/java/com/shabinder/spotiflyer/ui/home/Home.kt

@@ -15,8 +15,6 @@ import androidx.compose.material.icons.outlined.History
 import androidx.compose.material.icons.outlined.Info
 import androidx.compose.material.icons.rounded.*
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.collectAsState
-import androidx.compose.runtime.getValue
 import androidx.compose.ui.viewinterop.viewModel
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -34,14 +32,13 @@ import androidx.core.net.toUri
 import androidx.navigation.NavController
 import com.shabinder.spotiflyer.R
 import com.shabinder.spotiflyer.database.DownloadRecord
-import com.shabinder.spotiflyer.navigation.navigateToPlatform
+import com.shabinder.spotiflyer.navigation.navigateToTrackList
 import com.shabinder.spotiflyer.ui.SpotiFlyerTypography
 import com.shabinder.spotiflyer.ui.colorAccent
 import com.shabinder.spotiflyer.ui.colorPrimary
 import com.shabinder.spotiflyer.utils.openPlatform
 import com.shabinder.spotiflyer.utils.sharedViewModel
 import dev.chrisbanes.accompanist.glide.GlideImage
-import kotlinx.coroutines.flow.StateFlow
 
 @Composable
 fun Home(navController: NavController, modifier: Modifier = Modifier) {
@@ -49,26 +46,23 @@ fun Home(navController: NavController, modifier: Modifier = Modifier) {
 
     Column(modifier = modifier) {
 
-        val link by viewModel.link.collectAsState()
+        AuthenticationBanner(sharedViewModel.isAuthenticated,modifier)
-
-        AuthenticationBanner(viewModel,modifier)
 
         SearchPanel(
-            link,
+            viewModel.link,
             viewModel::updateLink,
             navController,
             modifier
         )
-        val selectedCategory by viewModel.selectedCategory.collectAsState()
 
         HomeTabBar(
-            selectedCategory,
+            viewModel.selectedCategory,
             HomeCategory.values(),
             viewModel::selectCategory,
             modifier
         )
 
-        when(selectedCategory){
+        when(viewModel.selectedCategory){
             HomeCategory.About -> AboutColumn()
             HomeCategory.History -> HistoryColumn(viewModel.downloadRecordList,navController)
         }
@@ -212,11 +206,9 @@ fun AboutColumn(modifier: Modifier = Modifier) {
 
 @Composable
 fun HistoryColumn(
-    downloadRecordList: StateFlow<List<DownloadRecord>>,
+    list: List<DownloadRecord>,
     navController: NavController
 ) {
-    val list by downloadRecordList.collectAsState()
-
     LazyColumn(
         verticalArrangement = Arrangement.spacedBy(8.dp),
         content = {
@@ -254,16 +246,15 @@ fun DownloadRecordItem(item: DownloadRecord,navController: NavController) {
         }
         Image(
             imageVector = vectorResource(id = R.drawable.ic_share_open),
-            modifier = Modifier.clickable(onClick = { navController.navigateToPlatform(item.link) })
+            modifier = Modifier.clickable(onClick = { navController.navigateToTrackList(item.link) })
         )
     }
 }
 
 @Composable
-fun AuthenticationBanner(viewModel: HomeViewModel, modifier: Modifier) {
+fun AuthenticationBanner(isAuthenticated: Boolean, modifier: Modifier) {
-    val authenticationStatus by viewModel.isAuthenticating.collectAsState()
 
-    if (authenticationStatus) {
+    if (!isAuthenticated) {
         // TODO show a progress indicator or similar
     }
 }
@@ -321,7 +312,7 @@ fun SearchPanel(
 
     Column(
         horizontalAlignment = Alignment.CenterHorizontally,
-        modifier = modifier.padding(top = 16.dp,)
+        modifier = modifier.padding(top = 16.dp)
     ){
         TextField(
             leadingIcon = {
@@ -346,7 +337,7 @@ fun SearchPanel(
         OutlinedButton(
             modifier = Modifier.padding(12.dp).wrapContentWidth(),
             onClick = {
-                navController.navigateToPlatform(link)
+                navController.navigateToTrackList(link)
             },
             border = BorderStroke(1.dp, Brush.horizontalGradient(listOf(colorPrimary, colorAccent)))
         ){
@@ -354,6 +345,8 @@ fun SearchPanel(
         }
     }
 }
+
+
 @Composable
 fun HomeCategoryTabIndicator(
     modifier: Modifier = Modifier,

app/src/main/java/com/shabinder/spotiflyer/ui/home/HomeViewModel.kt

@@ -2,56 +2,40 @@ package com.shabinder.spotiflyer.ui.home
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.shabinder.spotiflyer.database.DatabaseDAO
 import com.shabinder.spotiflyer.database.DownloadRecord
 import com.shabinder.spotiflyer.utils.sharedViewModel
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.setValue
 
 class HomeViewModel : ViewModel() {
 
-    private val _link = MutableStateFlow("")
+    var link by mutableStateOf("")
-    val link:StateFlow<String>
+    private set
-        get() = _link
 
     fun updateLink(s:String) {
-        _link.value = s
+        link = s
     }
 
-    private val _isAuthenticating = MutableStateFlow(true)
+    var selectedCategory by mutableStateOf(HomeCategory.About)
-    val isAuthenticating:StateFlow<Boolean>
+    private set
-        get() = _isAuthenticating
-
-    fun authenticated(s:Boolean) {
-        _isAuthenticating.value = s
-    }
-
-    private val _selectedCategory = MutableStateFlow(HomeCategory.About)
-    val selectedCategory :StateFlow<HomeCategory>
-        get() = _selectedCategory
 
     fun selectCategory(s:HomeCategory) {
-        _selectedCategory.value = s
+        selectedCategory = s
     }
 
-    private val _downloadRecordList = MutableStateFlow<List<DownloadRecord>>(listOf())
+    var downloadRecordList by mutableStateOf<List<DownloadRecord>>(listOf())
-    val downloadRecordList: StateFlow<List<DownloadRecord>>
-        get() = _downloadRecordList
 
     fun getDownloadRecordList() {
         viewModelScope.launch {
             withContext(Dispatchers.IO){
-                _downloadRecordList.value = sharedViewModel.databaseDAO.getRecord().toMutableList()
+                downloadRecordList = sharedViewModel.databaseDAO.getRecord()
             }
         }
     }
-
-    init {
-        getDownloadRecordList()
-    }
 }
 
 enum class HomeCategory {

app/src/main/java/com/shabinder/spotiflyer/ui/platforms/gaana/Gaana.kt

@@ -1,55 +0,0 @@
-package com.shabinder.spotiflyer.ui.platforms.gaana
-
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.setValue
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.navigation.NavController
-import com.shabinder.spotiflyer.models.PlatformQueryResult
-import com.shabinder.spotiflyer.models.spotify.Source
-import com.shabinder.spotiflyer.ui.tracklist.TrackList
-import com.shabinder.spotiflyer.utils.*
-import kotlinx.coroutines.launch
-
-@Composable
-fun Gaana(
-    fullLink: String,
-    navController: NavController
-) {
-    val source = Source.Gaana
-    var result by remember { mutableStateOf<PlatformQueryResult?>(null) }
-
-    //Coroutine Scope Active till this Composable is Active
-    val coroutineScope = rememberCoroutineScope()
-
-    //Link Schema: https://gaana.com/type/link
-    val gaanaLink = fullLink.substringAfter("gaana.com/")
-
-    val link = gaanaLink.substringAfterLast('/', "error")
-    val type = gaanaLink.substringBeforeLast('/', "error").substringAfterLast('/')
-
-    log("Gaana Fragment", "$type : $link")
-
-    //Error
-    if (type == "Error" || link == "Error"){
-        showDialog("Please Check Your Link!")
-        navController.popBackStack()
-    }
-
-    coroutineScope.launch {
-        result = gaanaSearch(
-            type,
-            link,
-            sharedViewModel.gaanaInterface,
-            sharedViewModel.databaseDAO,
-        )
-    }
-    result?.let {
-        TrackList(
-            result = it,
-            source = source
-        )
-    }
-}

app/src/main/java/com/shabinder/spotiflyer/ui/platforms/spotify/Spotify.kt

@@ -1,79 +0,0 @@
-package com.shabinder.spotiflyer.ui.platforms.spotify
-
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.setValue
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.navigation.NavController
-import com.shabinder.spotiflyer.models.PlatformQueryResult
-import com.shabinder.spotiflyer.models.spotify.Source
-import com.shabinder.spotiflyer.ui.tracklist.TrackList
-import com.shabinder.spotiflyer.utils.*
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-
-@Composable
-fun Spotify(fullLink: String, navController: NavController,) {
-    val source: Source = Source.Spotify
-    val coroutineScope = rememberCoroutineScope()
-    var result by remember { mutableStateOf<PlatformQueryResult?>(null) }
-
-    var spotifyLink =
-        "https://" + fullLink.substringAfterLast("https://").substringBefore(" ").trim()
-    log("Spotify Fragment Link", spotifyLink)
-
-    coroutineScope.launch(Dispatchers.Default) {
-
-        /*
-        * New Link Schema: https://link.tospotify.com/kqTBblrjQbb,
-        * Fetching Standard Link: https://open.spotify.com/playlist/37i9dQZF1DX9RwfGbeGQwP?si=iWz7B1tETiunDntnDo3lSQ&amp;_branch_match_id=862039436205270630
-        * */
-        if (!spotifyLink.contains("open.spotify")) {
-            val resolvedLink = resolveLink(spotifyLink, sharedViewModel.gaanaInterface)
-            log("Spotify Resolved Link", resolvedLink)
-            spotifyLink = resolvedLink
-        }
-
-        val link = spotifyLink.substringAfterLast('/', "Error").substringBefore('?')
-        val type = spotifyLink.substringBeforeLast('/', "Error").substringAfterLast('/')
-
-        log("Spotify Fragment", "$type : $link")
-
-        if (sharedViewModel.spotifyService.value == null) {//Authentication pending!!
-            if (isOnline()) mainActivity.authenticateSpotify()
-        }
-
-        if (type == "Error" || link == "Error") {
-        showDialog("Please Check Your Link!")
-        navController.popBackStack()
-        }
-
-        if (type == "episode" || type == "show") {
-            //TODO Implementation
-            showDialog("Implementing Soon, Stay Tuned!")
-        } else {
-            if (sharedViewModel.spotifyService.value == null){
-                //Authentication Still Pending
-                // TODO Better Implementation
-                showDialog("Authentication Failed")
-                navController.popBackStack()
-            }else{
-                result = spotifySearch(
-                    type,
-                    link,
-                    sharedViewModel.spotifyService.value!!,
-                    sharedViewModel.databaseDAO
-                )
-            }
-        }
-    }
-    result?.let {
-        log("Spotify",it.trackList.size.toString())
-        TrackList(
-            result = it,
-            source = source
-        )
-    }
-}

app/src/main/java/com/shabinder/spotiflyer/ui/platforms/youtube/Youtube.kt

@@ -1,64 +0,0 @@
-package com.shabinder.spotiflyer.ui.platforms.youtube
-
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.setValue
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.navigation.NavController
-import com.shabinder.spotiflyer.models.PlatformQueryResult
-import com.shabinder.spotiflyer.models.spotify.Source
-import com.shabinder.spotiflyer.ui.tracklist.TrackList
-import com.shabinder.spotiflyer.utils.sharedViewModel
-import com.shabinder.spotiflyer.utils.showDialog
-import kotlinx.coroutines.launch
-
-
-private const val sampleDomain2 = "youtu.be"
-private const val sampleDomain1 = "youtube.com"
-
-@Composable
-fun Youtube(fullLink: String, navController: NavController,) {
-    val source = Source.YouTube
-    var result by remember { mutableStateOf<PlatformQueryResult?>(null) }
-    //Coroutine Scope Active till this Composable is Active
-    val coroutineScope = rememberCoroutineScope()
-
-    coroutineScope.launch {
-        val link = fullLink.removePrefix("https://").removePrefix("http://")
-        if(link.contains("playlist",true) || link.contains("list",true)){
-            // Given Link is of a Playlist
-            val playlistId = link.substringAfter("?list=").substringAfter("&list=").substringBefore("&")
-            getYTPlaylist(
-                playlistId,
-                sharedViewModel.ytDownloader,
-                sharedViewModel.databaseDAO
-            )
-        }else{//Given Link is of a Video
-            var searchId = "error"
-            if(link.contains(sampleDomain1,true) ){
-                searchId =  link.substringAfterLast("=","error")
-            }
-            if(link.contains(sampleDomain2,true) ){
-                searchId = link.substringAfterLast("/","error")
-            }
-            if(searchId != "error") {
-                result = getYTTrack(
-                    searchId,
-                    sharedViewModel.ytDownloader,
-                    sharedViewModel.databaseDAO
-                )
-            }else{
-                showDialog("Your Youtube Link is not of a Video!!")
-                navController.popBackStack()
-            }
-        }
-    }
-    result?.let {
-        TrackList(
-            result = it,
-            source = source
-        )
-    }
-}

app/src/main/java/com/shabinder/spotiflyer/ui/tracklist/TrackList.kt

@@ -8,6 +8,10 @@ import androidx.compose.material.Icon
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.setValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -19,14 +23,18 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.core.net.toUri
+import androidx.navigation.NavController
 import com.shabinder.spotiflyer.R
 import com.shabinder.spotiflyer.models.PlatformQueryResult
 import com.shabinder.spotiflyer.models.TrackDetails
-import com.shabinder.spotiflyer.models.spotify.Source
 import com.shabinder.spotiflyer.ui.SpotiFlyerTypography
 import com.shabinder.spotiflyer.ui.colorAccent
+import com.shabinder.spotiflyer.providers.queryGaana
+import com.shabinder.spotiflyer.providers.querySpotify
+import com.shabinder.spotiflyer.providers.queryYoutube
 import com.shabinder.spotiflyer.ui.utils.calculateDominantColor
 import com.shabinder.spotiflyer.utils.sharedViewModel
+import com.shabinder.spotiflyer.utils.showDialog
 import dev.chrisbanes.accompanist.coil.CoilImage
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
@@ -36,19 +44,46 @@ import kotlinx.coroutines.launch
 **/
 @Composable
 fun TrackList(
-    result: PlatformQueryResult,
+    fullLink: String,
-    source: Source,
+    navController: NavController,
     modifier: Modifier = Modifier
 ){
     val coroutineScope = rememberCoroutineScope()
+
+    var result by remember(fullLink) { mutableStateOf<PlatformQueryResult?>(null) }
+
+    coroutineScope.launch {
+        if(result == null){
+            result = when{
+                //SPOTIFY
+                fullLink.contains("spotify",true) -> querySpotify(fullLink)
+
+                //YOUTUBE
+                fullLink.contains("youtube.com",true) || fullLink.contains("youtu.be",true) -> queryYoutube(fullLink)
+
+                //GAANA
+                fullLink.contains("gaana",true) -> queryGaana(fullLink)
+
+                else -> {
+                    showDialog("Link is Not Valid")
+                    null
+                }
+            }
+        }
+        //Error Occurred And Has Been Shown to User
+        if(result == null) navController.popBackStack()
+    }
+
+
+    result?.let{
         Box(modifier = modifier.fillMaxSize()){
             LazyColumn(
                 verticalArrangement = Arrangement.spacedBy(8.dp),
                 content = {
                     item {
-                    CoverImage(result.title,result.coverUrl,coroutineScope)
+                        CoverImage(it.title,it.coverUrl,coroutineScope)
                     }
-                items(result.trackList) {
+                    items(it.trackList) {
                         TrackCard(track = it)
                     }
                 },
@@ -59,6 +94,7 @@ fun TrackList(
                 modifier = Modifier.padding(bottom = 24.dp).align(Alignment.BottomCenter)
             )
         }
+    }
 }
 
 @Composable
@@ -87,7 +123,9 @@ fun CoverImage(
             //color = colorAccent,
         )
     }
-    scope.launch { updateGradient(coverURL) }
+    scope.launch {
+        updateGradient(coverURL)
+    }
 }
 
 @Composable

app/src/main/java/com/shabinder/spotiflyer/utils/NetworkInterceptor.kt

@@ -26,7 +26,8 @@ const val NoInternetErrorCode = 222
 
 class NetworkInterceptor: Interceptor {
     override fun intercept(chain: Interceptor.Chain): Response {
-        log("Network Requesting",chain.request().url.toString())
+        log("Network Requesting Debug",chain.request().url.toString())
+
         return if (!isOnline()){
             //No Internet Connection
             showDialog()

app/src/main/java/com/shabinder/spotiflyer/utils/Provider.kt

@@ -3,15 +3,11 @@ package com.shabinder.spotiflyer.utils
 import android.content.Context
 import android.os.Environment
 import android.util.Base64
-import androidx.lifecycle.ViewModelProvider
 import com.github.kiulian.downloader.YoutubeDownloader
 import com.shabinder.spotiflyer.App
-import com.shabinder.spotiflyer.SharedViewModel
 import com.shabinder.spotiflyer.database.DatabaseDAO
 import com.shabinder.spotiflyer.database.DownloadRecordDatabase
-import com.shabinder.spotiflyer.networking.GaanaInterface
+import com.shabinder.spotiflyer.networking.*
-import com.shabinder.spotiflyer.networking.SpotifyServiceTokenRequest
-import com.shabinder.spotiflyer.networking.YoutubeMusicApi
 import com.squareup.moshi.Moshi
 import com.squareup.moshi.kotlin.reflect.KotlinJsonAdapterFactory
 import dagger.Module
@@ -26,6 +22,7 @@ import retrofit2.Retrofit
 import retrofit2.converter.moshi.MoshiConverterFactory
 import retrofit2.converter.scalars.ScalarsConverterFactory
 import java.io.File
+import java.util.concurrent.TimeUnit
 import javax.inject.Singleton
 
 
@@ -59,15 +56,26 @@ object Provider {
 
     @Provides
     @Singleton
-    fun getMoshi(): Moshi {
+    fun getTokenStore(
-        return Moshi.Builder()
+        @ApplicationContext appContext: Context,
-            .add(KotlinJsonAdapterFactory())
+        spotifyServiceTokenRequest: SpotifyServiceTokenRequest):TokenStore = TokenStore(appContext,spotifyServiceTokenRequest)
-            .build()
-    }
 
     @Provides
     @Singleton
-    fun getSpotifyTokenInterface(moshi: Moshi): SpotifyServiceTokenRequest {
+    fun getSpotifyService(authInterceptor: SpotifyAuthInterceptor,okHttpClient: OkHttpClient.Builder,moshi: Moshi) :SpotifyService{
+        val retrofit = Retrofit.Builder().run{
+            baseUrl("https://api.spotify.com/v1/")
+            client(okHttpClient.addInterceptor(authInterceptor).build())
+            addConverterFactory(MoshiConverterFactory.create(moshi))
+            build()
+        }
+        return retrofit.create(SpotifyService::class.java)
+    }
+
+
+    @Provides
+    @Singleton
+    fun getSpotifyTokenInterface(moshi: Moshi,networkInterceptor: NetworkInterceptor): SpotifyServiceTokenRequest {
         val httpClient2: OkHttpClient.Builder = OkHttpClient.Builder()
             .addInterceptor(Interceptor { chain ->
                 val request: Request =
@@ -82,7 +90,7 @@ object Provider {
                             }"
                         ).build()
                 chain.proceed(request)
-            }).addInterceptor(NetworkInterceptor())
+            }).addInterceptor(networkInterceptor)
 
         val retrofit = Retrofit.Builder()
             .baseUrl("https://accounts.spotify.com/")
@@ -94,18 +102,10 @@ object Provider {
 
     @Provides
     @Singleton
-    fun okHttpClient(): OkHttpClient {
+    fun getGaanaInterface(moshi: Moshi, okHttpClient: OkHttpClient.Builder): GaanaInterface {
-        return OkHttpClient.Builder()
-            .addInterceptor(NetworkInterceptor())
-            .build()
-    }
-
-    @Provides
-    @Singleton
-    fun getGaanaInterface(moshi: Moshi, okHttpClient: OkHttpClient): GaanaInterface {
         val retrofit = Retrofit.Builder()
             .baseUrl("https://api.gaana.com/")
-            .client(okHttpClient)
+            .client(okHttpClient.build())
             .addConverterFactory(MoshiConverterFactory.create(moshi))
             .build()
         return retrofit.create(GaanaInterface::class.java)
@@ -122,4 +122,25 @@ object Provider {
         return retrofit.create(YoutubeMusicApi::class.java)
     }
 
+    @Provides
+    @Singleton
+    fun getNetworkInterceptor():NetworkInterceptor = NetworkInterceptor()
+
+    @Provides
+    @Singleton
+    fun okHttpClient(networkInterceptor: NetworkInterceptor): OkHttpClient.Builder {
+        return OkHttpClient.Builder()
+            .readTimeout(1, TimeUnit.MINUTES)
+            .writeTimeout(1, TimeUnit.MINUTES)
+            .addInterceptor(networkInterceptor)
+
+    }
+
+    @Provides
+    @Singleton
+    fun getMoshi(): Moshi {
+        return Moshi.Builder()
+            .add(KotlinJsonAdapterFactory())
+            .build()
+    }
 }

app/src/main/java/com/shabinder/spotiflyer/utils/TokenStore.kt

@@ -0,0 +1,47 @@
+package com.shabinder.spotiflyer.utils
+
+import android.content.Context
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.preferencesKey
+import androidx.datastore.preferences.createDataStore
+import com.shabinder.spotiflyer.models.spotify.Token
+import com.shabinder.spotiflyer.networking.SpotifyServiceTokenRequest
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.flow.firstOrNull
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+class TokenStore (
+    context: Context,
+    private val spotifyServiceTokenRequest: SpotifyServiceTokenRequest
+) {
+    private val dataStore = context.createDataStore(
+        name = "settings"
+    )
+    private val token = preferencesKey<String>("token")
+    private val tokenExpiry = preferencesKey<Long>("expiry")
+
+
+    suspend fun saveToken(tokenKey:String,time:Long){
+        dataStore.edit {
+            it[token] = tokenKey
+            it[tokenExpiry] = (System.currentTimeMillis()/1000) + time
+        }
+    }
+
+    suspend fun getToken(): Token?{
+        var token = dataStore.data.map {
+            Token(it[token],null,it[tokenExpiry])
+        }.firstOrNull()
+        if(System.currentTimeMillis()/1000 > token?.expiry?:0){
+            token = spotifyServiceTokenRequest.getToken().value
+            log("Spotify Token","Requesting New Token")
+            GlobalScope.launch { token?.access_token?.let { saveToken(it,token.expiry ?: 0) } }
+        }
+        return token
+    }
+
+}