// Copied/adapted from novelpad-desktop apps/website/app/db/db.server.ts @ 62c56b87
import { schema, type NpOutreachDatabase } from '@novelpad/outreach-core';
import { drizzle } from 'drizzle-orm/node-postgres';
import pkg from 'pg';

const { Pool } = pkg;

// HMR-safe singleton. Without this, Vite re-evaluates this module on hot
// reload and instantiates a fresh Pool, while the previous pool lingers with
// open connections until idleTimeoutMillis fires — see the equivalent note
// in novelpad-desktop's apps/website/app/db/db.server.ts.
const g = globalThis as unknown as {
  __outreachPool?: InstanceType<typeof Pool>;
  __outreachDb?: NpOutreachDatabase;
};

const pool =
  g.__outreachPool ??
  (g.__outreachPool = new Pool({
    connectionString: process.env.DATABASE_URL,
    application_name: 'outreach-review',
    max: Number(process.env.PG_POOL_MAX ?? 10),
    idleTimeoutMillis: 30000,
    connectionTimeoutMillis: Number(
      process.env.PG_CONNECTION_TIMEOUT_MS ?? 15000,
    ),
  }));

const db =
  g.__outreachDb ??
  (g.__outreachDb = drizzle(pool, { schema }) as unknown as NpOutreachDatabase);

export { db, pool };