<?php
/**
 * This software is governed by the CeCILL-B license. If a copy of this license
 * is not distributed with this file, you can obtain one at
 * http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.txt
 *
 * Authors of STUdS (initial project): Guilhem BORGHESI (borghesi@unistra.fr) and Raphaël DROZ
 * Authors of Framadate/OpenSondage: Framasoft (https://github.com/framasoft)
 *
 * =============================
 *
 * Ce logiciel est régi par la licence CeCILL-B. Si une copie de cette licence
 * ne se trouve pas avec ce fichier vous pouvez l'obtenir sur
 * http://www.cecill.info/licences/Licence_CeCILL-B_V1-fr.txt
 *
 * Auteurs de STUdS (projet initial) : Guilhem BORGHESI (borghesi@unistra.fr) et Raphaël DROZ
 * Auteurs de Framadate/OpenSondage : Framasoft (https://github.com/framasoft)
 */
namespace Framadate;

use PDO;

class FramaDB {
    /**
     * PDO Object, connection to database.
     * @var PDO
     */
    private $pdo;

    public function __construct(string $connection_string, string $user, string $password) {
        $this->pdo = new PDO($connection_string, $user, $password);
        $this->pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);
        $this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    }

    /**
     * @return PDO Connection to database
     */
    public function getPDO(): PDO
    {
        return $this->pdo;
    }

    /**
     * Find all tables in database.
     *
     * @return array The array of table names
     */
    public function allTables(): array
    {
        return $this->pdo->query('SHOW TABLES')->fetchAll(PDO::FETCH_COLUMN);
    }

    /**
     * @return \PDOStatement|false
     */
    public function prepare(string $sql) {
        return $this->pdo->prepare($sql);
    }

    public function beginTransaction(): void
    {
        $this->pdo->beginTransaction();
    }

    public function commit(): void
    {
        $this->pdo->commit();
    }

    public function rollback(): void
    {
        $this->pdo->rollback();
    }

    public function errorCode(): ?string {
        return $this->pdo->errorCode();
    }

    public function errorInfo(): array
    {
        return $this->pdo->errorInfo();
    }

    /**
     * @return \PDOStatement|false
     */
    public function query($sql) {
        return $this->pdo->query($sql);
    }

    public function lastInsertId(): string {
        return $this->pdo->lastInsertId();
    }
}