<?php
/**
 * Plugin update functionality
 */

// Don't execute directly
if (!defined('ABSPATH')) {
    exit;
}

function fwembed_check_for_updates() {
    // IMPORTANT: Get the main plugin file path correctly
    $main_plugin_file = dirname(dirname(__FILE__)) . '/fw-store-embed.php';
    $plugin_slug = plugin_basename($main_plugin_file);
    
    // Get plugin data from main file
    if (!function_exists('get_plugin_data')) {
        require_once(ABSPATH . 'wp-admin/includes/plugin.php');
    }
    
    // Get plugin data from main plugin file (not this file)
    $plugin_data = get_plugin_data($main_plugin_file);
    $current_version = !empty($plugin_data['Version']) ? $plugin_data['Version'] : '0.0.1';
    
    // Debug data
    $debug_data = [
        'current_version' => $current_version,
        'main_plugin_file' => $main_plugin_file,
        'plugin_slug' => $plugin_slug,
        'time' => current_time('mysql')
    ];
    
    // URL to your Gitea releases API
    $gitea_api_url = 'https://repo.anhonesthost.net/api/v1/repos/wp-plugins/fourth-wall-embed-wp/releases/latest';
    
    // Use cURL to fetch release data
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $gitea_api_url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Accept: application/json']);
    curl_setopt($ch, CURLOPT_USERAGENT, 'WordPress/Fourth-Wall-Plugin-Updater');
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    
    $response = curl_exec($ch);
    curl_close($ch);
    
    if ($response) {
        $release_info = json_decode($response);
        
        // Update debug info with latest version
        $debug_data['latest_version'] = $release_info->tag_name ?? 'Not found';
        $debug_data['response'] = substr(print_r($release_info, true), 0, 1000);
        update_option('fwembed_update_debug', $debug_data);
        
        // Get latest version from tag name
        $latest_version = $release_info->tag_name;
        
        // Simple version comparison - we want any update to trigger if version is different
        if ($current_version != $latest_version) {
            // Get the download URL for the ZIP
            $download_url = null;
            if (isset($release_info->assets) && is_array($release_info->assets)) {
                foreach ($release_info->assets as $asset) {
                    if (isset($asset->name) && strpos($asset->name, '.zip') !== false) {
                        $download_url = $asset->browser_download_url;
                        break;
                    }
                }
            }
            
            // Hook into WordPress update system
            add_filter('site_transient_update_plugins', function($transient) use ($plugin_slug, $current_version, $latest_version, $download_url) {
                // Initialize if needed
                if (!is_object($transient)) {
                    $transient = new stdClass();
                }
                if (empty($transient->checked)) {
                    $transient->checked = [];
                }
                
                // Add our plugin to the checked list
                $transient->checked[$plugin_slug] = $current_version;
                
                if (empty($transient->response)) {
                    $transient->response = [];
                }
                
                // Add to the update list
                $transient->response[$plugin_slug] = (object) [
                    'id' => 'fourthwall-store-embed',
                    'slug' => 'fourthwall-store-embed',
                    'plugin' => $plugin_slug,
                    'new_version' => $latest_version,
                    'url' => 'https://repo.anhonesthost.net/wp-plugins/fourth-wall-embed-wp',
                    'package' => $download_url,
                    'icons' => [],
                    'banners' => [],
                    'tested' => '6.4.2',
                    'requires' => '5.0',
                    'compatibility' => new stdClass(),
                ];
                
                return $transient;
            });
        }
    }
}
add_action('admin_init', 'fwembed_check_for_updates');

// Add admin notice for debugging
add_action('admin_notices', function() {
    if (current_user_can('manage_options')) {
        $debug = get_option('fwembed_update_debug', []);
        echo '<div class="notice notice-info is-dismissible"><p>Update Debug: Current: ' . 
             esc_html($debug['current_version'] ?? 'N/A') . ', Latest: ' . 
             esc_html($debug['latest_version'] ?? 'N/A') . '</p>';
             
        // Detailed debug info with query param
        if (isset($_GET['fwembed_debug'])) {
            echo '<pre>' . esc_html(print_r($debug, true)) . '</pre>';
        }
        
        echo '</div>';
    }
});


// Add plugin information for the details popup/changelog
add_filter('plugins_api', function($result, $action, $args) {
    // Only handle requests for our plugin
    $plugin_slug = 'fourthwall-store-embed'; // The slug is directory name
    
    if ($action !== 'plugin_information' || !isset($args->slug) || $args->slug !== $plugin_slug) {
        return $result;
    }
    
    // Get latest release info from Gitea API
    $gitea_api_url = 'https://repo.anhonesthost.net/api/v1/repos/wp-plugins/fourth-wall-embed-wp/releases/latest';
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $gitea_api_url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Accept: application/json']);
    curl_setopt($ch, CURLOPT_USERAGENT, 'WordPress/Fourth-Wall-Plugin-Updater');
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    
    $response = curl_exec($ch);
    curl_close($ch);
    
    if (!$response) {
        return $result; // Keep default result if API call fails
    }
    
    $release_info = json_decode($response);
    
    // Build plugin info object
    $plugin_info = new stdClass();
    $plugin_info->name = 'Fourthwall Store Embed';
    $plugin_info->slug = $plugin_slug;
    $plugin_info->version = $release_info->tag_name;
    $plugin_info->author = '<a href="https://cybercove.io/">Joshua Knapp</a>';
    $plugin_info->homepage = 'https://repo.anhonesthost.net/wp-plugins/fourth-wall-embed-wp';
    $plugin_info->requires = '5.0';
    $plugin_info->tested = '6.8';
    $plugin_info->downloaded = 10;
    $plugin_info->last_updated = $release_info->published_at;
    
    // Format the release notes
    $changelog = !empty($release_info->body) ? $release_info->body : 'No changelog provided for this release.';
    
    // Handle empty changelog
    if (empty(trim($changelog))) {
        $changelog = "Version " . $release_info->tag_name . "\n\n" . 
                    "Released on " . date('F j, Y', strtotime($release_info->published_at)) . "\n\n" .
                    "* Updated plugin files";
    }
    
    // Format sections for display
    $plugin_info->sections = [
        'description' => '<p>Embed Fourthwall Store in WordPress.</p>',
        'changelog' => '<pre>' . esc_html($changelog) . '</pre>',
        'installation' => '<p>Upload the plugin to your WordPress site and activate it.</p>'
    ];
    
    // Download link
    $download_url = null;
    if (isset($release_info->assets) && is_array($release_info->assets)) {
        foreach ($release_info->assets as $asset) {
            if (isset($asset->name) && strpos($asset->name, '.zip') !== false) {
                $download_url = $asset->browser_download_url;
                break;
            }
        }
    }
    $plugin_info->download_link = $download_url;
    
    return $plugin_info;
}, 10, 3);