<?php
/**
 * GDPR Cookie Consent Module for PrestaShop
 *
 * @author      Walzen665
 * @copyright   Copyright (c) 2025
 * @license     http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
 */

if (!defined('_PS_VERSION_')) {
    exit;
}

/**
 * Helper class for detecting third-party scripts and assigning them to cookie categories
 */
class GdprScriptDetector
{
    // Common script signatures and their cookie categories
    private static $scriptPatterns = [
        'analytics' => [
            '/google-analytics\.com/i',
            '/googletagmanager\.com/i',
            '/gtag/i',
            '/analytics/i',
            '/matomo/i',
            '/piwik/i',
            '/statcounter/i',
            '/hotjar/i',
            '/clarity\.ms/i',
            '/stats/i'
        ],
        'marketing' => [
            '/facebook\.net/i',
            '/connect\.facebook\.com/i',
            '/fbevents\.js/i',
            '/doubleclick\.net/i',
            '/googlesyndication\.com/i',
            '/google.*ads/i',
            '/twitter\.com\/widgets/i',
            '/platform\.twitter\.com/i',
            '/pixel/i',
            '/ads/i',
            '/adservice/i',
            '/criteo/i',
            '/pinterest/i',
            '/taboola/i',
            '/outbrain/i'
        ],
        'functional' => [
            '/recaptcha/i',
            '/hcaptcha/i',
            '/fonts\.googleapis\.com/i',
            '/cloudflare/i',
            '/unpkg\.com/i',
            '/cdn/i',
            '/chat/i',
            '/live.*/i',
            '/support/i',
            '/feedback/i',
            '/maps\.google/i',
            '/disqus/i',
            '/zendesk/i',
            '/intercom/i'
        ]
    ];

    /**
     * Check if a script URL or content matches any pattern
     *
     * @param string $scriptText The script URL or content to check
     * @return string The cookie category ('necessary', 'functional', 'analytics', 'marketing')
     */
    public static function detectCategory($scriptText)
    {
        foreach (self::$scriptPatterns as $category => $patterns) {
            foreach ($patterns as $pattern) {
                if (preg_match($pattern, $scriptText)) {
                    return $category;
                }
            }
        }
        
        return 'necessary'; // Default category if no match found
    }

    /**
     * Get common third-party domains and their categories
     * 
     * @return array Associative array of domains and their categories
     */
    public static function getCommonThirdPartyDomains()
    {
        return [
            // Analytics
            'google-analytics.com' => 'analytics',
            'googletagmanager.com' => 'analytics',
            'analytics.google.com' => 'analytics',
            'matomo.org' => 'analytics',
            'matomo.cloud' => 'analytics',
            'piwik.pro' => 'analytics',
            'statcounter.com' => 'analytics',
            'hotjar.com' => 'analytics',
            'clarity.ms' => 'analytics',
            'mixpanel.com' => 'analytics',
            
            // Marketing
            'facebook.com' => 'marketing',
            'facebook.net' => 'marketing',
            'fbcdn.net' => 'marketing',
            'doubleclick.net' => 'marketing',
            'googlesyndication.com' => 'marketing',
            'adservice.google.com' => 'marketing',
            'twitter.com' => 'marketing',
            'linkedin.com' => 'marketing',
            'pinterest.com' => 'marketing',
            'ads-twitter.com' => 'marketing',
            'criteo.com' => 'marketing',
            'criteo.net' => 'marketing',
            'taboola.com' => 'marketing',
            'outbrain.com' => 'marketing',
            
            // Functional
            'google.com/recaptcha' => 'functional',
            'gstatic.com/recaptcha' => 'functional',
            'hcaptcha.com' => 'functional',
            'fonts.googleapis.com' => 'functional',
            'cloudflare.com' => 'functional',
            'cdn.jsdelivr.net' => 'functional',
            'unpkg.com' => 'functional',
            'cdnjs.cloudflare.com' => 'functional',
            'maps.google.com' => 'functional',
            'maps.googleapis.com' => 'functional',
            'disqus.com' => 'functional',
            'zendesk.com' => 'functional',
            'intercom.io' => 'functional'
        ];
    }

    /**
     * Check if a domain matches any known third-party domain
     *
     * @param string $domain The domain to check
     * @return string|false The cookie category or false if no match
     */
    public static function matchDomain($domain)
    {
        $thirdPartyDomains = self::getCommonThirdPartyDomains();
        
        foreach ($thirdPartyDomains as $thirdPartyDomain => $category) {
            if (strpos($domain, $thirdPartyDomain) !== false) {
                return $category;
            }
        }
        
        return false;
    }

    /**
     * Detect inline script content category
     *
     * @param string $content The script content to analyze
     * @return string The cookie category
     */
    public static function detectInlineScriptCategory($content)
    {
        // Common script signatures in inline scripts
        $inlinePatterns = [
            'analytics' => [
                '/googleAnalytics/i',
                '/gtag\s*\(/i',
                '/_gaq\s*\./i',
                '/ga\s*\(\s*[\'"]create/i',
                '/analytics/i',
                '/matomo/i',
                '/piwik/i',
                '/hotjar/i',
                '/clarity/i'
            ],
            'marketing' => [
                '/fbq\s*\(/i',
                '/FB\.init/i',
                '/facebook-jssdk/i',
                '/twttr\s*\./i',
                '/twitter-widgets/i',
                '/pintrk/i',
                '/adsbygoogle/i',
                '/googletag/i',
                '/pixel/i',
                '/track/i'
            ],
            'functional' => [
                '/grecaptcha/i',
                '/hcaptcha/i',
                '/maps\.googleapis/i',
                '/gapi\.load/i',
                '/disqus/i',
                '/LiveChat/i',
                '/intercom/i',
                '/zendesk/i'
            ]
        ];
        
        foreach ($inlinePatterns as $category => $patterns) {
            foreach ($patterns as $pattern) {
                if (preg_match($pattern, $content)) {
                    return $category;
                }
            }
        }
        
        return 'necessary';
    }
}