<?php
/*
* 2007-2013 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  2007-2013 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)
	{
		$sql = 'SELECT *
			FROM '._DB_PREFIX_.'customer_thread ct
			LEFT JOIN '._DB_PREFIX_.'customer_message cm
				ON ct.id_customer_thread = cm.id_customer_thread
			WHERE id_customer = '.(int)$id_customer;
		if (!is_null($read))
			$sql .= ' AND cm.`read` = '.(int)$read;

		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
			');
		else
			return (int)Db::getInstance()->getValue('
				SELECT COUNT(*)
				FROM '._DB_PREFIX_.'customer_thread
				WHERE '.$where
			);
	}

	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 DESC
		');
	}

	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
		');
	}
}