import { Command } from "commander";
import path from "path";
import fs from "fs";
import grabDBDir from "../utils/grab-db-dir";
import grabDBBackupFileName from "../utils/grab-db-backup-file-name";
import chalk from "chalk";
import trimBackups from "../utils/trim-backups";
import { dumpDatabase } from "../utils/mariadb-dump-restore";

export default function () {
    return new Command("backup")
        .description("Backup MariaDB database (SQL dump)")
        .action(async () => {
            console.log(`Backing up database ...`);

            const config = global.CONFIG;
            const { backup_dir } = grabDBDir({ config });

            if (!fs.existsSync(backup_dir)) {
                fs.mkdirSync(backup_dir, { recursive: true });
            }

            const backup_file_name = grabDBBackupFileName({ config });
            const backup_path = path.join(backup_dir, backup_file_name);

            try {
                const sql = await dumpDatabase(config);
                fs.writeFileSync(backup_path, sql, "utf-8");
                trimBackups({ config });

                console.log(
                    `${chalk.bold(chalk.green(`DB Backup Success!`))} → ${backup_path}`,
                );
                process.exit(0);
            } catch (error: any) {
                console.error(chalk.red(`Backup ERROR => ${error.message}`));
                process.exit(1);
            }
        });
}