<?php
/*
* 2007-2016 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:
* http://opensource.org/licenses/osl-3.0.php
* 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  2007-2016 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class CustomerThreadCore extends ObjectModel
{
    public $id;
    public $id_shop;
    public $id_lang;
    public $id_contact;
    public $id_customer;
    public $id_order;
    public $id_product;
    public $status;
    public $email;
    public $token;
    public $date_add;
    public $date_upd;

    /**
     * @see ObjectModel::$definition
     */
    public static $definition = array(
        'table' => 'customer_thread',
        'primary' => 'id_customer_thread',
        'fields' => array(
            'id_lang' =>    array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId', 'required' => true),
            'id_contact' => array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId', 'required' => true),
            'id_shop' =>    array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId'),
            'id_customer' =>array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId'),
            'id_order' =>    array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId'),
            'id_product' => array('type' => self::TYPE_INT, 'validate' => 'isUnsignedId'),
            'email' =>        array('type' => self::TYPE_STRING, 'validate' => 'isEmail', 'size' => 254),
            'token' =>        array('type' => self::TYPE_STRING, 'validate' => 'isGenericName', 'required' => true),
            'status' =>    array('type' => self::TYPE_STRING),
            'date_add' =>    array('type' => self::TYPE_DATE, 'validate' => 'isDate'),
            'date_upd' =>    array('type' => self::TYPE_DATE, 'validate' => 'isDate'),
        ),
    );

    protected $webserviceParameters = array(
        'fields' => array(
            'id_lang' => array(
                'xlink_resource' => 'languages'
            ),
            'id_shop' => array(
                'xlink_resource' => 'shops'
            ),
            'id_customer' => array(
                'xlink_resource' => 'customers'
            ),
            'id_order' => array(
                'xlink_resource' => 'orders'
            ),
            'id_product' => array(
                'xlink_resource' => 'products'
            ),
        ),
        'associations' => array(
            'customer_messages' => array(
                'resource' => 'customer_message',
                'id' => array('required' => true)),
        )
    );

    public function getWsCustomerMessages()
    {
        return Db::getInstance()->executeS('
		SELECT `id_customer_message` id
		FROM `'._DB_PREFIX_.'customer_message`
		WHERE `id_customer_thread` = '.(int)$this->id);
    }

    public function delete()
    {
        if (!Validate::isUnsignedId($this->id)) {
            return false;
        }

        $return = true;
        $result = Db::getInstance()->executeS('
			SELECT `id_customer_message`
			FROM `'._DB_PREFIX_.'customer_message`
			WHERE `id_customer_thread` = '.(int)$this->id
        );

        if (count($result)) {
            foreach ($result as $res) {
                $message = new CustomerMessage((int)$res['id_customer_message']);
                if (!Validate::isLoadedObject($message)) {
                    $return = false;
                } else {
                    $return &= $message->delete();
                }
            }
        }
        $return &= parent::delete();
        return $return;
    }

    public static function getCustomerMessages($id_customer, $read = null, $id_order = null)
    {
        $sql = 'SELECT *
			FROM '._DB_PREFIX_.'customer_thread ct
			LEFT JOIN '._DB_PREFIX_.'customer_message cm
				ON ct.id_customer_thread = cm.id_customer_thread
			WHERE id_customer = '.(int)$id_customer;

        if ($read !== null) {
            $sql .= ' AND cm.`read` = '.(int)$read;
        }
        if ($id_order !== null) {
            $sql .= ' AND ct.`id_order` = '.(int)$id_order;
        }

        $sql .= ' ORDER BY cm.date_add DESC';

        return Db::getInstance()->executeS($sql);
    }

    public static function getIdCustomerThreadByEmailAndIdOrder($email, $id_order)
    {
        return Db::getInstance()->getValue('
			SELECT cm.id_customer_thread
			FROM '._DB_PREFIX_.'customer_thread cm
			WHERE cm.email = \''.pSQL($email).'\'
				AND cm.id_shop = '.(int)Context::getContext()->shop->id.'
				AND cm.id_order = '.(int)$id_order
        );
    }

    public static function getContacts()
    {
        return Db::getInstance()->executeS('
			SELECT cl.*, COUNT(*) as total, (
				SELECT id_customer_thread
				FROM '._DB_PREFIX_.'customer_thread ct2
				WHERE status = "open" AND ct.id_contact = ct2.id_contact
				'.Shop::addSqlRestriction().'
				ORDER BY date_upd ASC
				LIMIT 1
			) as id_customer_thread
			FROM '._DB_PREFIX_.'customer_thread ct
			LEFT JOIN '._DB_PREFIX_.'contact_lang cl
				ON (cl.id_contact = ct.id_contact AND cl.id_lang = '.(int)Context::getContext()->language->id.')
			WHERE ct.status = "open"
				AND ct.id_contact IS NOT NULL
				AND cl.id_contact IS NOT NULL
				'.Shop::addSqlRestriction().'
			GROUP BY ct.id_contact HAVING COUNT(*) > 0
		');
    }

    public static function getTotalCustomerThreads($where = null)
    {
        if (is_null($where)) {
            return (int)Db::getInstance()->getValue('
				SELECT COUNT(*)
				FROM '._DB_PREFIX_.'customer_thread
				WHERE 1 '.Shop::addSqlRestriction()
            );
        } else {
            return (int)Db::getInstance()->getValue('
				SELECT COUNT(*)
				FROM '._DB_PREFIX_.'customer_thread
				WHERE '.$where.Shop::addSqlRestriction()
            );
        }
    }

    public static function getMessageCustomerThreads($id_customer_thread)
    {
        return Db::getInstance()->executeS('
			SELECT ct.*, cm.*, cl.name subject, CONCAT(e.firstname, \' \', e.lastname) employee_name,
				CONCAT(c.firstname, \' \', c.lastname) customer_name, c.firstname
			FROM '._DB_PREFIX_.'customer_thread ct
			LEFT JOIN '._DB_PREFIX_.'customer_message cm
				ON (ct.id_customer_thread = cm.id_customer_thread)
			LEFT JOIN '._DB_PREFIX_.'contact_lang cl
				ON (cl.id_contact = ct.id_contact AND cl.id_lang = '.(int)Context::getContext()->language->id.')
			LEFT JOIN '._DB_PREFIX_.'employee e
				ON e.id_employee = cm.id_employee
			LEFT JOIN '._DB_PREFIX_.'customer c
				ON (IFNULL(ct.id_customer, ct.email) = IFNULL(c.id_customer, c.email))
			WHERE ct.id_customer_thread = '.(int)$id_customer_thread.'
			ORDER BY cm.date_add ASC
		');
    }

    public static function getNextThread($id_customer_thread)
    {
        $context = Context::getContext();
        return Db::getInstance()->getValue('
			SELECT id_customer_thread
			FROM '._DB_PREFIX_.'customer_thread ct
			WHERE ct.status = "open"
			AND ct.date_upd = (
				SELECT date_add FROM '._DB_PREFIX_.'customer_message
				WHERE (id_employee IS NULL OR id_employee = 0)
					AND id_customer_thread = '.(int)$id_customer_thread.'
				ORDER BY date_add DESC LIMIT 1
			)
			'.($context->cookie->{'customer_threadFilter_cl!id_contact'} ?
                'AND ct.id_contact = '.(int)$context->cookie->{'customer_threadFilter_cl!id_contact'} : '').'
			'.($context->cookie->{'customer_threadFilter_l!id_lang'} ?
                'AND ct.id_lang = '.(int)$context->cookie->{'customer_threadFilter_l!id_lang'} : '').
            ' ORDER BY ct.date_upd ASC
		');
    }
}
