Actually use configured storage location for local source

Fixes #10178

domain/src/main/java/tachiyomi/domain/storage/service/StorageManager.kt

@@ -0,0 +1,54 @@
+package tachiyomi.domain.storage.service
+
+import android.content.Context
+import androidx.core.net.toUri
+import com.hippo.unifile.UniFile
+import eu.kanade.tachiyomi.util.storage.DiskUtil
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+
+class StorageManager(
+    private val context: Context,
+    storagePreferences: StoragePreferences,
+) {
+
+    private val scope = CoroutineScope(Dispatchers.IO)
+
+    private var baseDir: UniFile? = storagePreferences.baseStorageDirectory().get().let(::getBaseDir)
+
+    init {
+        storagePreferences.baseStorageDirectory().changes()
+            .onEach { baseDir = getBaseDir(it) }
+            .launchIn(scope)
+    }
+
+    private fun getBaseDir(path: String): UniFile? {
+        val file = UniFile.fromUri(context, path.toUri())
+
+        return file.takeIf { it?.exists() == true }?.also { parent ->
+            parent.createDirectory(AUTOMATIC_BACKUPS_PATH)
+            parent.createDirectory(LOCAL_SOURCE_PATH)
+            parent.createDirectory(DOWNLOADS_PATH).also {
+                DiskUtil.createNoMediaFile(it, context)
+            }
+        }
+    }
+
+    fun getAutomaticBackupsDirectory(): UniFile? {
+        return baseDir?.createDirectory(AUTOMATIC_BACKUPS_PATH)
+    }
+
+    fun getDownloadsDirectory(): UniFile? {
+        return baseDir?.createDirectory(DOWNLOADS_PATH)
+    }
+
+    fun getLocalSourceDirectory(): UniFile? {
+        return baseDir?.createDirectory(LOCAL_SOURCE_PATH)
+    }
+}
+
+private const val AUTOMATIC_BACKUPS_PATH = "autobackup"
+private const val DOWNLOADS_PATH = "downloads"
+private const val LOCAL_SOURCE_PATH = "local"

domain/src/main/java/tachiyomi/domain/storage/service/StoragePreferences.kt

@@ -9,9 +9,4 @@ class StoragePreferences(
 ) {
 
     fun baseStorageDirectory() = preferenceStore.getString("storage_dir", folderProvider.path())
-
-    companion object {
-        const val BACKUP_DIR = "autobackup"
-        const val DOWNLOADS_DIR = "downloads"
-    }
 }