knowledge/src/db/index.ts

import { drizzle } from 'drizzle-orm/node-postgres';
import { Pool } from 'pg';
import * as dotenv from 'dotenv';

dotenv.config();

const pool = new Pool({
  connectionString: process.env.DATABASE_URL,
});

export const db = drizzle(pool);

// 用于测试连接的函数
export async function testConnection() {
  try {
    const client = await pool.connect();
    console.log('✅ 成功连接到 PostgreSQL 数据库！');
    const res = await client.query('SELECT NOW()');
    console.log('🕒 数据库当前时间:', res.rows[0].now);
    client.release();
  } catch (err) {
    console.error('❌ 数据库连接失败:', err);
    process.exit(1);
  }
}

if (require.main === module) {
  testConnection();
}