<?php

namespace modules\listings\views\item;

use Listings;
use modules\listings\views\lists\GalleryListBlock;

/**
 * Item Page > Similar items
 * @copyright Tamaranga
 */
class SimilarItemsBlock extends GalleryListBlock
{
    /** @var string block title */
    public $title;
    /** @var int items limit */
    public $limit = 3;
    /** @var int item id to compare to */
    public $itemId = 0;
    /** @var array search categories id */
    public $categories = [];
    /** @var int category type id */
    public $categoryType = Listings::TYPE_OFFER;
    /** @var int search region id */
    public $regionId = 0;

    public function init()
    {
        parent::init();

        $this->setTemplate('item/similar', 'listings');
        $this->setTitle(_t('@listings', 'Similar Listings'));
        $this->setKey('similar');
        $this->limit = 3;
    }

    public function data()
    {
        $data = parent::data();

        if (! $this->itemId) {
            return false;
        }

        $filter = $this->prepareItemsFilter();
        $categories = $this->categories;
        $i = sizeof($categories);
        while ($i--) {
            $filter[':cat-filter'] = $categories;
            array_pop($categories);
            $this->loadItems($filter, [
                'orderBy'  => 'publicated_order DESC, id DESC',
                'limit'    => $this->limit,
            ]);
            if ($this->items) {
                break;
            }
        } unset($i);

        if (empty($this->items)) {
            return false;
        }

        return $data;
    }

    public function prepareItemsFilter()
    {
        $filter = [
            'is_publicated' => 1,
            'status' => Listings::STATUS_PUBLICATED,
        ];
        if ($this->regionId > 0) {
            $filter[':region-filter'] = $this->regionId;
        }
        if (is_numeric($this->categoryType)) {
            $filter['cat_type'] = $this->categoryType;
        }
        if ($this->itemId > 0) {
            $filter['id'] = ['!=', $this->itemId];
        }

        return $filter;
    }

    public function settingsForm($form)
    {
        $form->text('title', _t('@', 'Title'), _t('listings', 'Similar Listings', true));

        $form->number('limit', _t('@listings', 'Number of similar listings'), 1, 20, 1, $this->limit)
             ->width(100)
             ->tip(_t('@listings', 'Number of similar listings on the "Item View" page'));
    }
}