import { Command } from "commander";
import path from "path";
import fs from "fs";
import chalk from "chalk";
import grabDBDir from "../utils/grab-db-dir";
import grabDirNames from "../data/grab-dir-names";
import snapshotDb from "../utils/snapshot-db";
import { writeExportArchive } from "../utils/export-archive";
import trimExports from "../utils/trim-exports";
import { AppData } from "../data/app-data";
function defaultExportFileName(dbName, format) {
    return `${dbName}-${Date.now()}.${format}`;
}
export default function () {
    return new Command("export")
        .description("Export database file + schema into a portable archive")
        .option("-o, --output <path>", "Output archive path (.tar.gz or .zip). Defaults to db exports dir")
        .option("-f, --format <format>", "Archive format when --output is omitted: tar.gz | zip", "tar.gz")
        .action(async (opts) => {
        console.log(`Exporting database ...`);
        const config = global.CONFIG;
        const { export_dir } = grabDBDir({ config });
        const { BUN_SQLITE_TEMP_DIR } = grabDirNames();
        if (!fs.existsSync(export_dir)) {
            fs.mkdirSync(export_dir, { recursive: true });
        }
        const formatRaw = String(opts.format || "tar.gz").toLowerCase();
        const format = formatRaw === "zip" ? "zip" : "tar.gz";
        let outPath;
        if (opts.output) {
            outPath = path.resolve(opts.output);
            fs.mkdirSync(path.dirname(outPath), { recursive: true });
        }
        else {
            outPath = path.join(export_dir, defaultExportFileName(config.db_name, format));
        }
        const snapshot_path = path.join(BUN_SQLITE_TEMP_DIR, `export-${Date.now()}.db`);
        /** Remove the temp database file before exiting */
        const exit = (code) => {
            fs.rmSync(snapshot_path, { force: true });
            process.exit(code);
        };
        try {
            snapshotDb({ db: global.SQLITE_CLIENT, dst: snapshot_path });
            /**
             * The schema is always stored as `schema.<ext>` so `import`
             * can find it, whatever `db_schema_file_name` is.
             */
            const schemaFileName = `${AppData.DbSchemaFileName}${path.extname(global.SCHEMA_FILE_PATH)}`;
            await writeExportArchive({
                contents: {
                    db: new Uint8Array(fs.readFileSync(snapshot_path)),
                    schema: fs.readFileSync(global.SCHEMA_FILE_PATH, "utf-8"),
                    schemaFileName,
                },
                outPath,
            });
            if (path.dirname(outPath) === export_dir) {
                trimExports({ config });
            }
            console.log(`${chalk.bold(chalk.green(`DB Export Success!`))} → ${outPath}`);
            console.log(chalk.dim(`Contains: database.sqlite + ${schemaFileName}`));
            exit(0);
        }
        catch (error) {
            console.error(chalk.red(`Export ERROR => ${error.message}`));
            exit(1);
        }
    });
}