import dotenv from 'dotenv';
import path from 'path';
import pg from 'pg';

dotenv.config({ path: path.resolve(__dirname, '../.env') });

export function getDbClient() {
    return new pg.Client({
        host: process.env.DB_HOST,
        port: Number(process.env.DB_PORT) || 5432,
        user: process.env.DB_USERNAME,
        password: process.env.DB_PASSWORD,
        database: process.env.DB_DATABASE,
    });
}

export async function getStorageState() {
    const client = getDbClient();
    await client.connect();
    try {
        const { rows } = await client.query(
            `SELECT value FROM settings WHERE key = $1 LIMIT 1`,
            ['session']
        );
        if (!rows.length) throw new Error("No 'session' row found in settings table");
        const { value } = rows[0];
        return typeof value === 'string' ? JSON.parse(value) : value;
    } finally {
        await client.end();
    }
}