Fix default storage

app/src/main/java/org/koitharu/kotatsu/core/parser/LocalMangaRepository.kt

@@ -147,5 +147,11 @@ class LocalMangaRepository : MangaRepository, KoinComponent {
 			result += context.getExternalFilesDirs(DIR_NAME)
 			return result.distinctBy { it.canonicalPath }.filter { it.exists() || it.mkdir() }
 		}
+
+		fun getFallbackStorageDir(context: Context): File? {
+			return context.getExternalFilesDir(DIR_NAME) ?: context.filesDir.sub(DIR_NAME).takeIf {
+				(it.exists() || it.mkdir()) && it.canWrite()
+			}
+		}
 	}
 }

app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt

@@ -96,9 +96,7 @@ class AppSettings private constructor(resources: Resources, private val prefs: S
 		val value = prefs.getString(context.getString(R.string.key_local_storage), null)?.let {
 			File(it)
 		}?.takeIf { it.exists() && it.canWrite() }
-		return value ?: LocalMangaRepository.getAvailableStorageDirs(context).maxBy {
-			StatFs(it.path).availableBytes
-		}
+		return value ?: LocalMangaRepository.getFallbackStorageDir(context)
 	}
 
 	fun setStorageDir(context: Context, file: File?) {