<?php
class Database {
    private $pdo;

    public function __construct($config) {
        $dsn = "pgsql:host={$config['host']};dbname={$config['dbname']}";
        try {
            $this->pdo = new PDO($dsn, $config['user'], $config['password'], [
                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
            ]);
        } catch (PDOException $e) {
            die('Connection failed: ' . $e->getMessage());
        }

    }

    public function getDefaultSchema() {
        $query = "SELECT current_schema()";
        $stmt = $this->pdo->query($query);
        return $stmt->fetchColumn();
    }

    public function getPDO() {
        return $this->pdo;
    }
}