Delete downloaded tracks on logout. Cache is not deleted for now (until I find a way).

app/src/main/java/com/github/apognu/otter/Otter.kt

@@ -75,6 +75,12 @@ class Otter : Application() {
     }
   }
 
+  fun deleteAllData() {
+    PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).clear()
+
+    exoDownloadManager.removeAllDownloads()
+  }
+
   inner class CrashReportHandler : Thread.UncaughtExceptionHandler {
     override fun uncaughtException(t: Thread, e: Throwable) {
       val now = Date(Date().time - (5 * 60 * 1000))

app/src/main/java/com/github/apognu/otter/activities/SettingsActivity.kt

@@ -11,6 +11,7 @@ import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SeekBarPreference
 import com.github.apognu.otter.BuildConfig
+import com.github.apognu.otter.Otter
 import com.github.apognu.otter.R
 import com.github.apognu.otter.utils.*
 import com.preference.PowerPreference
@@ -78,12 +79,10 @@ class SettingsFragment : PreferenceFragmentCompat(), SharedPreferences.OnSharedP
             .setTitle(context.getString(R.string.logout_title))
             .setMessage(context.getString(R.string.logout_content))
             .setPositiveButton(android.R.string.yes) { _, _ ->
-              PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).clear()
-
-              context.cacheDir.deleteRecursively()
-
               CommandBus.send(Command.ClearQueue)
 
+              Otter.get().deleteAllData()
+
               activity?.setResult(MainActivity.ResultCode.LOGOUT.code)
               activity?.finish()
             }