<?php
/**
 * AI RSS Rewriter - Assets Manager
 * Handles all CSS and JavaScript asset loading with proper WordPress enqueuing
 */

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

class AIRSREFE_Assets_Manager {
    
    private $plugin_url;
    private $plugin_version;
    
    public function __construct() {
        $this->plugin_url = AIRSREFE_PLUGIN_URL;
        $this->plugin_version = AIRSREFE_VERSION;
        
        add_action('admin_enqueue_scripts', [$this, 'enqueue_admin_assets']);
        add_action('wp_enqueue_scripts', [$this, 'enqueue_frontend_assets']);
    }
    
    /**
     * Enqueue admin assets based on current page
     */
    public function enqueue_admin_assets($hook) {
        // Only load on our plugin pages
        if (!$this->is_plugin_page()) {
            return;
        }
        
        // Enqueue common admin assets
        $this->enqueue_common_admin_assets();
        
        // Enqueue page-specific assets
        $this->enqueue_page_specific_assets($hook);
    }
    
    /**
     * Enqueue frontend assets (if any)
     */
    public function enqueue_frontend_assets() {
        // Currently no frontend assets, but structure is ready
    }
    
    /**
     * Check if current page is a plugin page
     */
    private function is_plugin_page() {
        // Check if user has admin capabilities
        if (!current_user_can('manage_options')) {
            return false;
        }
        
        // Use WordPress function to get current screen
        $screen = get_current_screen();
        if (!$screen || !isset($screen->id)) {
            return false;
        }
        
        return strpos($screen->id, 'ai-rss-rewriter') !== false;
    }
    
    /**
     * Enqueue common admin assets
     */
    private function enqueue_common_admin_assets() {
        // Get assets URL from uploads directory
        $assets_url = function_exists('airsrefe_get_assets_url') ? airsrefe_get_assets_url() : $this->plugin_url . 'assets/';
        
        // Main admin styles
        wp_enqueue_style(
            'airsrefe-admin-modern',
            $assets_url . 'admin-modern.css',
            [],
            $this->plugin_version
        );
        
        // Admin interface styles
        wp_enqueue_style(
            'airsrefe-admin-interface',
            $assets_url . 'admin-interface.css',
            [],
            $this->plugin_version
        );
        
        // Prompts styles (always load for main page)
        wp_enqueue_style(
            'airsrefe-prompts',
            $assets_url . 'css/admin/prompts.css',
            ['airsrefe-admin-modern'],
            $this->plugin_version
        );
        
        // Inline styles for prompts
        wp_enqueue_style(
            'airsrefe-inline-styles',
            $assets_url . 'css/admin/inline-styles.css',
            ['airsrefe-prompts'],
            $this->plugin_version
        );
        
        // Main admin JavaScript
        wp_enqueue_script(
            'airsrefe-admin-modern',
            $assets_url . 'admin-modern.js',
            ['jquery'],
            $this->plugin_version,
            true
        );
        
        // Prompts JavaScript (always load for main page)
        wp_enqueue_script(
            'airsrefe-prompts',
            $assets_url . 'js/admin/prompts.js',
            ['jquery'],
            $this->plugin_version,
            true
        );
        
        
        // Localize script with AJAX data and translations
        wp_localize_script('airsrefe-admin-modern', 'airsrefe_ajax', [
            'ajaxurl' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('airsrefe_ajax'),
            'strings' => [
                'processing' => __('Processing...', 'ai-rss-rewriter'),
                'refreshing' => __('Refreshing...', 'ai-rss-rewriter'),
                'running' => __('Running...', 'ai-rss-rewriter'),
                'pleaseSelectAction' => __('Please select an action', 'ai-rss-rewriter'),
                'pleaseSelectFeed' => __('Please select at least one feed', 'ai-rss-rewriter'),
                'securityCheckFailed' => __('Security check failed. Please refresh the page and try again.', 'ai-rss-rewriter'),
                'invalidFormAction' => __('Invalid form action. Please refresh the page and try again.', 'ai-rss-rewriter'),
                'noValidFeeds' => __('No valid feeds selected. Please refresh the page and try again.', 'ai-rss-rewriter'),
                'deleteConfirm' => __('Delete selected feeds? This action cannot be undone.', 'ai-rss-rewriter'),
                'feedStatusUpdated' => __('Feed status updated', 'ai-rss-rewriter'),
                'unknownError' => __('Unknown error', 'ai-rss-rewriter'),
                'connectionError' => __('Connection error', 'ai-rss-rewriter'),
                'copied' => __('Copied!', 'ai-rss-rewriter'),
                'copyFailed' => __('Copy failed - please select text manually', 'ai-rss-rewriter'),
                'copyFailedManual' => __('Copy failed - please select text manually and press Ctrl+C', 'ai-rss-rewriter'),
                'feedOrderUpdated' => __('Feed order updated', 'ai-rss-rewriter'),
                'fillRequiredFields' => __('Please fill in all required fields', 'ai-rss-rewriter'),
                'areYouSure' => __('Are you sure?', 'ai-rss-rewriter')
            ]
        ]);
        
        // Localize prompts script with translations
        wp_localize_script('airsrefe-prompts', 'airsrefe_prompts', [
            'resetConfirm' => __('Reset all prompts to defaults? This will overwrite any custom changes.', 'ai-rss-rewriter'),
            'resetFailed' => __('Reset failed', 'ai-rss-rewriter'),
            'saving' => __('Saving...', 'ai-rss-rewriter'),
            'saveFailed' => __('Save failed', 'ai-rss-rewriter'),
            'editPrompt' => __('Edit Prompt', 'ai-rss-rewriter'),
            'loadFailed' => __('Could not load prompt', 'ai-rss-rewriter')
        ]);
    }
    
    /**
     * Enqueue page-specific assets
     */
    private function enqueue_page_specific_assets($hook) {
        // Check if user has admin capabilities
        if (!current_user_can('manage_options')) {
            return;
        }
        
        // Use WordPress function to get current screen
        $screen = get_current_screen();
        if (!$screen || !isset($screen->id)) {
            return;
        }
        
        $page = $screen->id;
        
        // Get tab parameter safely
        $tab = '';
        // phpcs:disable WordPress.Security.NonceVerification.Recommended -- Tab parameter is used only for asset loading, not for security-sensitive operations
        if (isset($_GET['tab'])) {
            $tab = sanitize_text_field(wp_unslash($_GET['tab']));
        }
        // phpcs:enable WordPress.Security.NonceVerification.Recommended
        
        switch ($page) {
            case 'ai-rss-rewriter':
                $this->enqueue_main_page_assets($tab, $page);
                break;
                
            case 'ai-rss-rewriter-settings':
                $this->enqueue_settings_assets();
                break;
                
            case 'ai-rss-rewriter-prompts':
                $this->enqueue_prompts_assets();
                break;
        }
    }
    
    /**
     * Enqueue main page assets
     */
    private function enqueue_main_page_assets($tab, $page) {
        // Get assets URL from uploads directory
        $assets_url = function_exists('airsrefe_get_assets_url') ? airsrefe_get_assets_url() : $this->plugin_url . 'assets/';
        
        // Dashboard styles
        wp_enqueue_style(
            'airsrefe-dashboard',
            $assets_url . 'css/admin/dashboard.css',
            ['airsrefe-admin-modern'],
            $this->plugin_version
        );
        
        // Modal functionality
        wp_enqueue_script(
            'airsrefe-modal',
            $assets_url . 'js/admin/modal.js',
            ['jquery'],
            $this->plugin_version,
            true
        );
        
        // Feed management
        wp_enqueue_script(
            'airsrefe-feed-management',
            $assets_url . 'js/admin/feed-management.js',
            ['jquery'],
            $this->plugin_version,
            true
        );
        
        
        // Logs functionality
        if ($tab === 'logs') {
            wp_enqueue_script(
                'airsrefe-logs',
                $assets_url . 'js/admin/logs.js',
                ['jquery'],
                $this->plugin_version,
                true
            );
            
            // Localize logs script with translations
            wp_localize_script('airsrefe-logs', 'airsrefe_logs', [
                'copied' => __('Copied!', 'ai-rss-rewriter'),
                'copyLog' => __('Copy Log', 'ai-rss-rewriter'),
                'copyFailed' => __('Copy failed', 'ai-rss-rewriter'),
                'copyFailedManual' => __('Copy failed - please select text manually', 'ai-rss-rewriter')
            ]);
        }
        
        // Settings functionality - check for settings tab or always load for main page
        if ($tab === 'settings' || empty($tab)) {
            $this->enqueue_settings_assets();
        }
        
        // Prompts functionality - check for prompts tab or prompts page
        if ($tab === 'prompts' || ($page && $page === 'ai-rss-rewriter-prompts')) {
            $this->enqueue_prompts_assets();
        }
        
        // Always load prompts assets on main page to ensure they're available
        if ($page === 'ai-rss-rewriter') {
            $this->enqueue_prompts_assets();
        }
    }
    
    /**
     * Enqueue settings page assets
     */
    private function enqueue_settings_assets() {
        // Get assets URL from uploads directory
        $assets_url = function_exists('airsrefe_get_assets_url') ? airsrefe_get_assets_url() : $this->plugin_url . 'assets/';
        
        // Settings styles
        wp_enqueue_style(
            'airsrefe-settings',
            $assets_url . 'css/admin/settings.css',
            ['airsrefe-admin-modern'],
            $this->plugin_version
        );
        
        // Inline styles conversion
        wp_enqueue_style(
            'airsrefe-inline-styles',
            $assets_url . 'css/admin/inline-styles.css',
            ['airsrefe-settings'],
            $this->plugin_version
        );
        
        // Settings JavaScript
        wp_enqueue_script(
            'airsrefe-settings-admin',
            $assets_url . 'settings-admin.js',
            ['jquery'],
            $this->plugin_version,
            true
        );
        
        // Localize script with settings data
        wp_localize_script('airsrefe-settings-admin', 'airsrefe_settings_data', [
            'current_language' => get_option('airsrefe_plugin_language', 'en'),
            'ajax_url' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('airsrefe_ajax')
        ]);
        
        // Add dynamic settings styles
        $this->add_dynamic_settings_styles();
    }
    
    /**
     * Enqueue prompts page assets
     */
    private function enqueue_prompts_assets() {
        // Check if already enqueued to avoid duplicates
        if (wp_style_is('airsrefe-prompts', 'enqueued')) {
            return;
        }
        
        // Get assets URL from uploads directory
        $assets_url = function_exists('airsrefe_get_assets_url') ? airsrefe_get_assets_url() : $this->plugin_url . 'assets/';
        
        // Prompts styles
        wp_enqueue_style(
            'airsrefe-prompts',
            $assets_url . 'css/admin/prompts.css',
            ['airsrefe-admin-modern'],
            $this->plugin_version
        );
        
        // Also enqueue inline styles for prompts
        wp_enqueue_style(
            'airsrefe-inline-styles',
            $assets_url . 'css/admin/inline-styles.css',
            ['airsrefe-prompts'],
            $this->plugin_version
        );
        
        // Prompts JavaScript
        wp_enqueue_script(
            'airsrefe-prompts',
            $assets_url . 'js/admin/prompts.js',
            ['jquery'],
            $this->plugin_version,
            true
        );
        
        // Localize prompts script with translations
        wp_localize_script('airsrefe-prompts', 'airsrefe_prompts', [
            'resetConfirm' => __('Reset all prompts to defaults? This will overwrite any custom changes.', 'ai-rss-rewriter'),
            'resetFailed' => __('Reset failed', 'ai-rss-rewriter'),
            'saving' => __('Saving...', 'ai-rss-rewriter'),
            'saveFailed' => __('Save failed', 'ai-rss-rewriter'),
            'editPrompt' => __('Edit Prompt', 'ai-rss-rewriter'),
            'loadFailed' => __('Could not load prompt', 'ai-rss-rewriter')
        ]);
    }
    
    
    /**
     * Add dynamic settings styles
     */
    private function add_dynamic_settings_styles() {
        $extract_full_content = get_option('airsrefe_extract_full_content', 1);
        
        if (!$extract_full_content) {
            $dynamic_css = ".extraction-option { display: none; }";
            wp_add_inline_style('airsrefe-inline-styles', $dynamic_css);
        }
    }
}

// Initialize the assets manager
new AIRSREFE_Assets_Manager();