import { drizzle } from "drizzle-orm/postgres-js";
import postgres from "postgres";
import * as schema from "./schema";

// No pooler in front of this for the MVP: DATABASE_URL points straight at
// Postgres, and postgres-js already pools connections in-process (`max`).
//
// `prepare: false` is kept deliberately so a transaction-mode pooler can be
// added later without touching this file. Which one matters - measured
// 2026-10-20: through pgCat 1.2.0 any query with a bind parameter hangs
// forever (every Drizzle query has one), while PgBouncer 1.22 in transaction
// mode runs the same queries and passes scripts/e2e-authz.sh. See PLAN.md.
//
// Migrations go straight at Postgres either way: drizzle.config.ts cannot
// pass `prepare: false`, and drizzle-kit hung at commit through pgCat.
const connectionString = process.env.DATABASE_URL;
if (!connectionString) {
  throw new Error("DATABASE_URL is not set");
}

const client = postgres(connectionString, {
  prepare: false,
  max: Number(process.env.DATABASE_POOL_MAX ?? 10),
});

export const db = drizzle(client, { schema });
export type Database = typeof db;