import { PrismaClient } from '@prisma/client';
import { PrismaPg } from '@prisma/adapter-pg';
import { Pool } from 'pg';

const globalForPrisma = globalThis as unknown as { prisma?: PrismaClient };

const pool = process.env.DATABASE_URL ? new Pool({ connectionString: process.env.DATABASE_URL }) : undefined;
const adapter = pool ? new PrismaPg(pool) : undefined;

export const prisma =
  globalForPrisma.prisma ??
  new PrismaClient({
    adapter,
    log: process.env.NODE_ENV === 'development' ? ['query', 'error', 'warn'] : ['error'],
  });

if (process.env.NODE_ENV !== 'production') {
  globalForPrisma.prisma = prisma;
}