import { connect, type Database } from '@tursodatabase/database';
import { env } from '$env/dynamic/private';
import { resolve } from 'node:path';

let databasePromise: Promise<Database> | undefined;

/**
 * Returns the process-wide embedded Turso connection.
 *
 * This module lives under $lib/server so SvelteKit prevents it from being
 * imported into browser bundles.
 */
export function getDatabase(): Promise<Database> {
	const configuredPath = env.TDR_DATABASE_PATH || './data/shd-build-development.db';

	if (!databasePromise) {
		databasePromise = connect(resolve(configuredPath));
	}

	return databasePromise;
}