<?php

class App_ECommerce_Product_List extends Qs_ViewController_List
{
    const ORDER_ALPHABETICAL_AZ = 0;
    const ORDER_ALPHABETICAL_ZA = 1;
    const ORDER_PRICE_LOW = 2;
    const ORDER_PRICE_HIGH = 3;

    protected $_orderTitles = array(
        self::ORDER_ALPHABETICAL_AZ => 'Alphabetical A to Z',
        self::ORDER_ALPHABETICAL_ZA => 'Alphabetical Z to A',
        self::ORDER_PRICE_LOW       => 'Price Low to High',
        self::ORDER_PRICE_HIGH      => 'Price High to Low'
    );

    protected $_orderFields = array(
        self::ORDER_ALPHABETICAL_AZ => 'title ASC',
        self::ORDER_ALPHABETICAL_ZA => 'title DESC',
        self::ORDER_PRICE_LOW       => 'price ASC',
        self::ORDER_PRICE_HIGH      => 'price DESC'
    );

    protected $_orderId = 0;
    protected $_isDisabledLimit = true;

    public function getOrderBy()
    {
        if (null === $this->orderBy) {
            $this->orderBy = array($this->_orderFields[$this->_orderId]);
        } else if (!is_array($this->orderBy)) {
            $this->orderBy = array($this->orderBy);
        }
        return $this->orderBy;
    }

    public function getOrderTitles()
    {
        return $this->_orderTitles;
    }

    /**
     * @param int $id
     * @return $this
     */
    public function setOrderId($id)
    {
        $id = (int) $id;
        if (array_key_exists($id, $this->_orderFields)) {
            $this->_orderId = $id;
        }
        return $this;
    }

    protected function _getIpp()
    {
        parent::_getIpp();
        if (!$this->_ipp) {
            $this->_ipp = $this->_defaultIpp;
        }
        return $this->_ipp;
    }
}