<?php

declare(strict_types=1);

namespace Esun\Translation\Model\Html;

use DOMDocument;
use DOMElement;
use DOMText;

class HtmlFragment
{
    /**
     * @param array<string, DOMText> $textNodes
     * @param array<string, string> $texts
     */
    public function __construct(
        private readonly DOMDocument $document,
        private readonly DOMElement $root,
        private readonly array $textNodes,
        private readonly array $texts,
        private readonly array $directivePlaceholders = []
    ) {
    }

    /**
     * @return array<string, string>
     */
    public function getTexts(): array
    {
        return $this->texts;
    }

    /**
     * @param array<string, string> $translations
     */
    public function applyTranslations(array $translations): string
    {
        foreach ($this->textNodes as $id => $node) {
            if (array_key_exists($id, $translations)) {
                $node->nodeValue = $translations[$id];
            }
        }

        $html = '';
        foreach ($this->root->childNodes as $childNode) {
            $html .= $this->document->saveHTML($childNode);
        }

        $restored = $this->directivePlaceholders === [] ? $html : strtr($html, $this->directivePlaceholders);

        return $this->normalizeMagentoDirectiveQuotes($restored);
    }

    private function normalizeMagentoDirectiveQuotes(string $html): string
    {
        return preg_replace_callback(
            '/\{\{.*?\}\}/s',
            static function (array $matches): string {
                return str_ireplace(
                    ['&quot;', '&#34;', '&#x22;', '&apos;', '&#39;', '&#x27;'],
                    ['"', '"', '"', "'", "'", "'"],
                    $matches[0]
                );
            },
            $html
        ) ?? $html;
    }
}