SectionProvider.php

<?php
 
namespace Bitrix\Catalog\v2\Integration\UI\EntitySelector;
 
use Bitrix\UI\EntitySelector\BaseProvider;
use Bitrix\UI\EntitySelector\Dialog;
use Bitrix\UI\EntitySelector\Item;
use Bitrix\UI\EntitySelector\SearchQuery;
 
class SectionProvider extends BaseProvider
{
    private const SECTION_LIMIT = 20;
    protected const SECTION_ENTITY_ID = 'section';
 
    public function __construct(array $options = [])
    {
        parent::__construct();
 
        $this->options = $options;
    }
 
    public function isAvailable(): bool
    {
        return $GLOBALS['USER']->isAuthorized();
    }
 
    public function getItems(array $ids): array
    {
        $items = [];
 
        $filter = !empty($ids) ? ['ID' => $ids] : [];
 
        foreach ($this->getActiveSections($filter) as $section)
        {
            $items[] = $this->makeItem($section);
        }
 
        return $items;
    }
 
    public function getSelectedItems(array $ids): array
    {
        $selectedItems = [];
 
        $filter = !empty($ids) ? ['ID' => $ids] : [];
 
        foreach ($this->getSections($filter) as $section)
        {
            $selectedItems[] = $this->makeItem($section);
        }
 
        return $selectedItems;
    }
 
    public function fillDialog(Dialog $dialog): void
    {
        $dialog->loadPreselectedItems();
 
        if ($dialog->getItemCollection()->count() > 0)
        {
            foreach ($dialog->getItemCollection() as $item)
            {
                $dialog->addRecentItem($item);
            }
        }
 
        $recentItemsCount = count($dialog->getRecentItems()->getEntityItems(static::SECTION_ENTITY_ID));
 
        if ($recentItemsCount < self::SECTION_LIMIT)
        {
            foreach ($this->getActiveSections() as $section)
            {
                $dialog->addRecentItem(
                    $this->makeItem($section)
                );
            }
        }
    }
 
    public function doSearch(SearchQuery $searchQuery, Dialog $dialog): void
    {
        $filter = [];
 
        $query = $searchQuery->getQuery();
        if ($query !== '')
        {
            $filter['%NAME'] = $query;
        }
 
        foreach ($this->getActiveSections($filter) as $section)
        {
            $dialog->addItem(
                $this->makeItem($section)
            );
        }
 
        if ($dialog->getItemCollection()->count() >= self::SECTION_LIMIT)
        {
            $searchQuery->setCacheable(false);
        }
    }
 
    protected function getActiveSections(array $additionalFilter = []): array
    {
        return $this->getSections(array_merge(['=ACTIVE' => 'Y'], $additionalFilter));
    }
 
    protected function getSections(array $additionalFilter = []): array
    {
        $sections = [];
 
        $filter = $this->getDefaultFilter();
        if (!empty($additionalFilter))
        {
            $filter = array_merge($filter, $additionalFilter);
        }
 
        if (!empty($filter))
        {
            $sectionData = \CIBlockSection::GetList(
                [],
                $filter,
                false,
                ['ID', 'NAME', 'PICTURE'],
                [
                    'nTopCount' => self::SECTION_LIMIT,
                ]
            );
            while ($section = $sectionData->fetch())
            {
                if (!empty($section['PICTURE']))
                {
                    $section['PICTURE'] = \CFile::resizeImageGet(
                        $section['PICTURE'],
                        [
                            'width' => 100,
                            'height' => 100,
                        ],
                        BX_RESIZE_IMAGE_EXACT,
                        false
                    )['src'];
                }
 
                $sections[] = $section;
            }
        }
 
        return $sections;
    }
 
    protected function makeItem(array $section): Item
    {
        return new Item([
            'id' => $section['ID'],
            'entityId' => static::SECTION_ENTITY_ID,
            'title' => $section['NAME'],
            'avatar' => $section['PICTURE'],
        ]);
    }
 
    private function getDefaultFilter(): array
    {
        $filter = [];
 
        $iblockId = (int)($this->getOptions()['iblockId'] ?? 0);
        if (!empty($iblockId))
        {
            $filter['IBLOCK_ID'] = $iblockId;
        }
 
        return $filter;
    }
}