<?php
/**
 * 2007-2018 PrestaShop
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to http://www.prestashop.com for more information.
 *
 * @author    PrestaShop SA <contact@prestashop.com>
 * @copyright 2007-2018 PrestaShop SA
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * International Registered Trademark & Property of PrestaShop SA
 */

/**
 * Class CustomerMessageCore
 */
class CustomerMessageCore extends ObjectModel
{
    public $id;
    /** @var int CustomerThread ID */
    public $id_customer_thread;

    /** @var   */
    public $id_employee;

    /** @var string $message */
    public $message;

    /** @var string $file_name */
    public $file_name;

    /** @var string $ip_address */
    public $ip_address;

    /** @var string $user_agent */
    public $user_agent;

    /** @var int $private */
    public $private;

    /** @var string $date_add */
    public $date_add;

    /** @var string $date_upd */
    public $date_upd;

    /** @var bool $read */
    public $read;

    /**
     * @see ObjectModel::$definition
     */
    public static $definition = array(
        'table' => 'customer_message',
        'primary' => 'id_customer_message',
        'fields' => array(
            'id_employee' => array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId'),
            'id_customer_thread' => array('type' => self::TYPE_INT),
            'ip_address' => array('type' => self::TYPE_STRING, 'validate' => 'isIp2Long', 'size' => 15),
            'message' => array('type' => self::TYPE_STRING, 'validate' => 'isCleanHtml', 'required' => true, 'size' => 16777216),
            'file_name' => array('type' => self::TYPE_STRING),
            'user_agent' => array('type' => self::TYPE_STRING),
            'private' => array('type' => self::TYPE_INT),
            'date_add' => array('type' => self::TYPE_DATE, 'validate' => 'isDate'),
            'date_upd' => array('type' => self::TYPE_DATE, 'validate' => 'isDate'),
            'read' => array('type' => self::TYPE_BOOL, 'validate' => 'isBool'),
        ),
    );

    /** @var array $webserviceParameters */
    protected $webserviceParameters = array(
        'fields' => array(
            'id_employee' => array(
                'xlink_resource' => 'employees',
            ),
            'id_customer_thread' => array(
                'xlink_resource' => 'customer_threads',
            ),
        ),
    );

    /**
     * Get CustomerMessages by Order ID
     *
     * @param int  $idOrder Order ID
     * @param bool $private Private
     *
     * @return array|false|mysqli_result|null|PDOStatement|resource
     */
    public static function getMessagesByOrderId($idOrder, $private = true)
    {
        return Db::getInstance()->executeS('
			SELECT cm.*,
				c.`firstname` AS cfirstname,
				c.`lastname` AS clastname,
				e.`firstname` AS efirstname,
				e.`lastname` AS elastname,
				(COUNT(cm.id_customer_message) = 0 AND ct.id_customer != 0) AS is_new_for_me
			FROM `'._DB_PREFIX_.'customer_message` cm
			LEFT JOIN `'._DB_PREFIX_.'customer_thread` ct
				ON ct.`id_customer_thread` = cm.`id_customer_thread`
			LEFT JOIN `'._DB_PREFIX_.'customer` c
				ON ct.`id_customer` = c.`id_customer`
			LEFT OUTER JOIN `'._DB_PREFIX_.'employee` e
				ON e.`id_employee` = cm.`id_employee`
			WHERE ct.id_order = '.(int) $idOrder.'
			'.(!$private ? 'AND cm.`private` = 0' : '').'
			GROUP BY cm.id_customer_message
			ORDER BY cm.date_add DESC
		');
    }

    /**
     * Get total CustomerMessages
     *
     * @param string|null $where Additional SQL query
     *
     * @return int Amount of CustomerMessages found
     */
    public static function getTotalCustomerMessages($where = null)
    {
        if (is_null($where)) {
            return (int)Db::getInstance()->getValue('
				SELECT COUNT(*)
				FROM '._DB_PREFIX_.'customer_message
				LEFT JOIN `'._DB_PREFIX_.'customer_thread` ct ON (cm.`id_customer_thread` = ct.`id_customer_thread`)
				WHERE 1'.Shop::addSqlRestriction()
            );
        } else {
            return (int)Db::getInstance()->getValue('
				SELECT COUNT(*)
				FROM '._DB_PREFIX_.'customer_message cm
				LEFT JOIN `'._DB_PREFIX_.'customer_thread` ct ON (cm.`id_customer_thread` = ct.`id_customer_thread`)
				WHERE '.$where.Shop::addSqlRestriction()
            );
        }
    }

    /**
     * Deletes current CustomerMessage from the database
     *
     * @return bool `true` if delete was successful
     * @throws PrestaShopException
     */
    public function delete()
    {
        if (!empty($this->file_name)) {
            @unlink(_PS_UPLOAD_DIR_.$this->file_name);
        }

        return parent::delete();
    }

    /**
     * Get the last message for a thread customer
     *
     * @param $id_customer_thread   Thread customer reference
     * @return string               Last message
     */
    public static function getLastMessageForCustomerThread($id_customer_thread)
    {
        return (string) Db::getInstance()->getValue('
            SELECT message
            FROM '._DB_PREFIX_.'customer_message
            WHERE id_customer_thread = '. (int) $id_customer_thread .'
            ORDER BY date_add DESC'
        );
    }
}
