feat: add pglite support (#138)

packages/db/src/client.ts

@@ -1,8 +1,12 @@
 import type { NodePgDatabase } from "drizzle-orm/node-postgres";
+import { drizzle as drizzlePgLite } from "drizzle-orm/pglite"; 
+import { uuid_ossp } from "@electric-sql/pglite/contrib/uuid_ossp";
 import { drizzle as drizzlePg } from "drizzle-orm/node-postgres";
 import { Pool } from "pg";
 
 import * as schema from "./schema";
+import { PGlite } from "@electric-sql/pglite";
+import { migrate } from "drizzle-orm/pglite/migrator";
 
 export type dbClient = NodePgDatabase<typeof schema> & {
   $client: Pool;
@@ -12,7 +16,14 @@ export const createDrizzleClient = (): dbClient => {
   const connectionString = process.env.POSTGRES_URL;
 
   if (!connectionString) {
-    throw new Error("POSTGRES_URL environment variable is not set");
+    console.log("POSTGRES_URL environment variable is not set, using PGLite");
+
+    const client = new PGlite({ dataDir: "./pgdata", extensions: { uuid_ossp }});
+    const db = drizzlePgLite(client, { schema });
+
+    migrate(db, { migrationsFolder: "../../packages/db/migrations" });
+
+    return db as unknown as dbClient;
   }
 
   const pool = new Pool({