<?php
/*
Plugin Name: Link Scraper Debugger
Description: Scrapes a link for the title and description and creates a new WooCommerce product.
Version: 1.0
Author: Plamen Ivanov
*/

add_action('admin_menu', 'link_scraper_debugger_menu');

function link_scraper_debugger_menu() {
    add_menu_page('Link Scraper Debugger', 'Link Scraper Debugger', 'manage_options', 'link-scraper-debugger', 'link_scraper_debugger_page');
}

function link_scraper_debugger_page() {
    ?>
    <div class="wrap">
        <h1>Link Scraper Debugger</h1>
        <form method="post" action="">
            <label for="scrape_url">Enter URL to Scrape:</label>
            <input type="text" id="scrape_url" name="scrape_url" style="width: 100%; max-width: 600px;">
            <input type="submit" name="scrape_submit" value="Scrape" class="button button-primary">
        </form>
    </div>
    <?php

    if (isset($_POST['scrape_submit'])) {
        $url = sanitize_text_field($_POST['scrape_url']);
        if (!empty($url)) {
            link_scraper_debugger_process($url);
        }
    }
}

function link_scraper_debugger_process($url) {
    $decoded_url = urldecode($url);
    $fullUrl = $decoded_url;

    $args = array(
        'redirection' => 5,
        'headers' => array(
            'User-Agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
        )
    );

    $response = wp_remote_get($decoded_url, $args);
    if (is_wp_error($response)) {
        echo '<div class="notice notice-error is-dismissible"><p>Failed to fetch URL: ' . $response->get_error_message() . '</p></div>';
        return;
    }

    $status_code = wp_remote_retrieve_response_code($response);
    if ($status_code != 200) {
        echo '<div class="notice notice-error is-dismissible"><p>Failed to fetch URL: HTTP status code ' . $status_code . '</p></div>';
        echo '<div class="notice notice-error is-dismissible"><p>Failed to fetch URL: ' . $decoded_url . '</p></div>';
        return;
    }

    $html = wp_remote_retrieve_body($response);

    $encoding = mb_detect_encoding($html, "UTF-8, Windows-1251, ISO-8859-1", true);
    if ($encoding != "UTF-8") {
        $html = mb_convert_encoding($html, "UTF-8", $encoding);
    }

    echo '<div class="notice notice-info is-dismissible"><p>Debug: HTML Content - ' . htmlspecialchars(substr($html, 0, 1000)) . '...</p></div>';

    if (!empty($html)) {
        libxml_use_internal_errors(true);
        $dom = new DOMDocument();
        $dom->loadHTML('<?xml encoding="utf-8" ?>' . $html);
        libxml_clear_errors();

        $xpath = new DOMXPath($dom);

        $titleNode = $xpath->query('//h1[@itemprop="name" and contains(@class, "product-single__title")]')->item(0);
        $title = $titleNode ? $titleNode->textContent : '';

        if ($titleNode) {
            echo '<div class="notice notice-info is-dismissible"><p>Debug: Title Node - ' . htmlspecialchars($dom->saveHTML($titleNode)) . '</p></div>';
        } else {
            echo '<div class="notice notice-warning is-dismissible"><p>Debug: Title Node not found</p></div>';
        }

        $descNode = $xpath->query('//div[contains(@class, "rte description")]')->item(0);
        $description = $descNode ? $dom->saveHTML($descNode) : '';

        if ($descNode) {
            echo '<div class="notice notice-info is-dismissible"><p>Debug: Description Node - ' . htmlspecialchars($dom->saveHTML($descNode)) . '</p></div>';
        } else {
            echo '<div class="notice notice-warning is-dismissible"><p>Debug: Description Node not found</p></div>';
        }
    } else {
        echo '<div class="notice notice-error is-dismissible"><p>Failed to retrieve HTML content.</p></div>';
    }
}
?>