smart db connection

import { dev } from '$app/environment';

import { DATABASE_URL } from '$env/static/private';

import * as schema from '$lib/drizzle/schema';

import { drizzle } from 'drizzle-orm/mysql2';

import { drizzle, type MySql2Database } from 'drizzle-orm/mysql2';

import mysql from 'mysql2/promise';

let db: MySql2Database<typeof schema>;

declare global {

	var __db: MySql2Database<typeof schema> | undefined;

}

if (dev) {

	const connection = await mysql.createConnection({

		uri: DATABASE_URL

	});

export const db = drizzle(connection, { schema, mode: 'default' });

	db = drizzle(connection, { schema, mode: 'default' });

} else {

	if (!global.__db) {

		const connection = await mysql.createConnection({

			uri: DATABASE_URL

		});

		global.__db = drizzle(connection, { schema, mode: 'default' });

	}

	db = global.__db;

}

export { db };