<?php
declare(strict_types=1);

namespace Esun\ImageManager\Model;

use Esun\ImageManager\Model\ResourceModel\Category\CollectionFactory as CategoryCollectionFactory;
use Esun\ImageManager\Model\ResourceModel\Image\CollectionFactory as ImageCollectionFactory;
use Magento\Framework\UrlInterface;
use Magento\Store\Model\StoreManagerInterface;

class ImageProvider
{
    public function __construct(
        private readonly CategoryCollectionFactory $categoryCollectionFactory,
        private readonly ImageCollectionFactory $imageCollectionFactory,
        private readonly StoreManagerInterface $storeManager
    ) {
    }

    public function getCategory(string $identifier): ?Category
    {
        $category = $this->categoryCollectionFactory->create()
            ->addFieldToFilter('identifier', trim($identifier))
            ->addFieldToFilter('status', 1)
            ->setPageSize(1)
            ->getFirstItem();

        return $category->getId() ? $category : null;
    }

    public function getCategoryById(int $categoryId): ?Category
    {
        if ($categoryId <= 0) {
            return null;
        }

        $category = $this->categoryCollectionFactory->create()
            ->addFieldToFilter('category_id', $categoryId)
            ->addFieldToFilter('status', 1)
            ->setPageSize(1)
            ->getFirstItem();

        return $category->getId() ? $category : null;
    }

    /**
     * @return array<int, array<string, int|string>>
     */
    public function getImages(string $categoryIdentifier): array
    {
        $category = $this->getCategory($categoryIdentifier);
        return $category ? $this->getImagesByCategoryId((int) $category->getId()) : [];
    }

    /**
     * @return array<int, array<string, int|string>>
     */
    public function getImagesByCategoryId(int $categoryId): array
    {
        $category = $this->getCategoryById($categoryId);
        if (!$category) {
            return [];
        }
        $collection = $this->imageCollectionFactory->create();
        $collection->addFieldToFilter('main_table.category_id', (int) $category->getId());
        $collection->addFieldToFilter('main_table.status', 1);
        $collection->setOrder('main_table.sort_order', 'ASC');
        $collection->setOrder('main_table.image_id', 'ASC');

        $items = [];
        foreach ($collection as $image) {
            $items[] = [
                'id' => (int) $image->getId(),
                'title' => (string) $image->getData('title'),
                'description' => (string) $image->getData('description'),
                'thumbnail_url' => $this->getMediaUrl((string) $image->getData('thumbnail_path')),
                'image_url' => $this->getMediaUrl((string) $image->getData('image_path')),
                'icon_url' => $this->getMediaUrl((string) $image->getData('icon_path')),
                'link_url' => (string) $image->getData('link_url'),
                'sort_order' => (int) $image->getData('sort_order'),
            ];
        }

        return $items;
    }

    private function getMediaUrl(string $path): string
    {
        if ($path === '') {
            return '';
        }

        return $this->storeManager->getStore()->getBaseUrl(UrlInterface::URL_TYPE_MEDIA)
            . ltrim($path, '/');
    }
}