<?php
/**
 * TigerStyle Whiskers Admin Controller
 * 
 * Navigate privacy administration with feline precision - every boundary has its interface!
 */

// Prevent direct access
if (!defined('ABSPATH')) {
    exit;
}

class TigerStyleWhiskers_Admin {
    
    /**
     * Single instance
     */
    private static $instance = null;
    
    /**
     * Admin pages
     */
    private $admin_pages = array();
    
    /**
     * Get instance
     */
    public static function instance() {
        if (is_null(self::$instance)) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    
    /**
     * Constructor
     */
    private function __construct() {
        $this->init_admin();
    }
    
    /**
     * Initialize admin components
     */
    private function init_admin() {
        // Admin menu and pages
        add_action('admin_menu', array($this, 'register_admin_menu'));
        add_action('admin_init', array($this, 'admin_init'));
        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_assets'));
        
        // AJAX handlers for privacy requests
        add_action('wp_ajax_whiskers_handle_data_request', array($this, 'handle_data_request'));
        add_action('wp_ajax_whiskers_run_cookie_scan', array($this, 'run_cookie_scan'));
        add_action('wp_ajax_whiskers_update_compliance', array($this, 'update_compliance_settings'));
        add_action('wp_ajax_tigerstyle_whiskers_save_inventory_completion', array($this, 'save_inventory_completion'));
        add_action('wp_ajax_tigerstyle_whiskers_schedule_review', array($this, 'schedule_compliance_review'));
        
        // Admin notices
        add_action('admin_notices', array($this, 'display_admin_notices'));
        
        // Initialize admin pages controller
        TigerStyleWhiskers_Admin_Pages::instance();
    }
    
    /**
     * Register admin menu and pages
     */
    public function register_admin_menu() {
        // Main Whiskers page
        add_menu_page(
            __('TigerStyle Whiskers', 'tigerstyle-whiskers'),
            __('Whiskers', 'tigerstyle-whiskers'),
            'manage_options',
            'tigerstyle-whiskers',
            array($this, 'render_main_page'),
            'data:image/svg+xml;base64,' . base64_encode($this->get_menu_icon()),
            30
        );
        
        // Dashboard submenu
        add_submenu_page(
            'tigerstyle-whiskers',
            __('Privacy Dashboard', 'tigerstyle-whiskers'),
            __('📊 Dashboard', 'tigerstyle-whiskers'),
            'manage_options',
            'tigerstyle-whiskers',
            array($this, 'render_main_page')
        );
        
        // Consent Analytics
        add_submenu_page(
            'tigerstyle-whiskers',
            __('Consent Analytics', 'tigerstyle-whiskers'),
            __('📈 Consent Analytics', 'tigerstyle-whiskers'),
            'manage_options',
            'whiskers-consent-analytics',
            array($this, 'render_consent_analytics')
        );
        
        // Data Requests
        add_submenu_page(
            'tigerstyle-whiskers',
            __('Data Requests', 'tigerstyle-whiskers'),
            __('📋 Data Requests', 'tigerstyle-whiskers'),
            'manage_options',
            'whiskers-data-requests',
            array($this, 'render_data_requests')
        );
        
        // Cookie Scanner
        add_submenu_page(
            'tigerstyle-whiskers',
            __('Cookie Scanner', 'tigerstyle-whiskers'),
            __('🍪 Cookie Scanner', 'tigerstyle-whiskers'),
            'manage_options',
            'whiskers-cookie-scanner',
            array($this, 'render_cookie_scanner')
        );
        
        // Compliance Monitor
        add_submenu_page(
            'tigerstyle-whiskers',
            __('Compliance Monitor', 'tigerstyle-whiskers'),
            __('✅ Compliance', 'tigerstyle-whiskers'),
            'manage_options',
            'whiskers-compliance',
            array($this, 'render_compliance_monitor')
        );
        
        // Settings
        add_submenu_page(
            'tigerstyle-whiskers',
            __('Whiskers Settings', 'tigerstyle-whiskers'),
            __('⚙️ Settings', 'tigerstyle-whiskers'),
            'manage_options',
            'whiskers-settings',
            array($this, 'render_settings')
        );
    }
    
    /**
     * Get SVG menu icon
     */
    private function get_menu_icon() {
        return '<svg viewBox="0 0 24 24" fill="currentColor">
            <path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.94-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z"/>
            <!-- Cat whiskers -->
            <line x1="3" y1="10" x2="6" y2="9.5" stroke="currentColor" stroke-width="0.5"/>
            <line x1="3" y1="12" x2="6" y2="12" stroke="currentColor" stroke-width="0.5"/>
            <line x1="3" y1="14" x2="6" y2="14.5" stroke="currentColor" stroke-width="0.5"/>
            <line x1="21" y1="10" x2="18" y2="9.5" stroke="currentColor" stroke-width="0.5"/>
            <line x1="21" y1="12" x2="18" y2="12" stroke="currentColor" stroke-width="0.5"/>
            <line x1="21" y1="14" x2="18" y2="14.5" stroke="currentColor" stroke-width="0.5"/>
        </svg>';
    }
    
    /**
     * Admin initialization
     */
    public function admin_init() {
        // Register settings
        register_setting('whiskers_settings', 'whiskers_options');
        
        // Initialize admin notices
        $this->check_heat_integration();
    }
    
    /**
     * Enqueue admin assets
     */
    public function enqueue_admin_assets($hook) {
        // Only load on Whiskers admin pages
        if (strpos($hook, 'whiskers') === false && strpos($hook, 'tigerstyle-whiskers') === false) {
            return;
        }
        
        // Admin CSS
        wp_enqueue_style(
            'whiskers-admin',
            TIGERSTYLE_WHISKERS_PLUGIN_URL . 'assets/css/admin.css',
            array(),
            TIGERSTYLE_WHISKERS_VERSION
        );
        
        // Admin JavaScript
        wp_enqueue_script(
            'whiskers-admin',
            TIGERSTYLE_WHISKERS_PLUGIN_URL . 'assets/js/admin.js',
            array('jquery', 'wp-api'),
            TIGERSTYLE_WHISKERS_VERSION,
            true
        );
        
        // Chart.js for analytics
        wp_enqueue_script(
            'chartjs',
            'https://cdn.jsdelivr.net/npm/chart.js',
            array(),
            '3.9.1',
            true
        );
        
        // Localize script for AJAX
        wp_localize_script('whiskers-admin', 'whiskersAdmin', array(
            'ajaxurl' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('whiskers_admin_nonce'),
            'strings' => array(
                'cookieScanInProgress' => __('Scanning cookies with feline precision...', 'tigerstyle-whiskers'),
                'complianceCheckRunning' => __('Checking compliance boundaries...', 'tigerstyle-whiskers'),
                'dataRequestProcessed' => __('Data request processed successfully!', 'tigerstyle-whiskers'),
                'errorOccurred' => __('An error occurred. Please check your whiskers and try again.', 'tigerstyle-whiskers'),
            )
        ));
    }
    
    /**
     * Check Heat integration status
     */
    private function check_heat_integration() {
        if (class_exists('TigerStyleSEO')) {
            update_option('whiskers_heat_integration', 'active');
        } else {
            update_option('whiskers_heat_integration', 'missing');
        }
    }
    
    /**
     * Display admin notices
     */
    public function display_admin_notices() {
        $heat_integration = get_option('whiskers_heat_integration', 'unknown');
        
        if ($heat_integration === 'missing') {
            echo '<div class="notice notice-info is-dismissible">';
            echo '<p><strong>🐱 TigerStyle Whiskers:</strong> ';
            echo __('Install TigerStyle Heat for enhanced SEO-privacy integration!', 'tigerstyle-whiskers');
            echo '</p>';
            echo '</div>';
        } elseif ($heat_integration === 'active') {
            echo '<div class="notice notice-success is-dismissible">';
            echo '<p><strong>🔥🐱 Integration Active:</strong> ';
            echo __('Heat respects Whiskers consent boundaries perfectly!', 'tigerstyle-whiskers');
            echo '</p>';
            echo '</div>';
        }
    }
    
    /**
     * Render main dashboard page
     */
    public function render_main_page() {
        TigerStyleWhiskers_Admin_Pages::render_dashboard();
    }
    
    /**
     * Render consent analytics page
     */
    public function render_consent_analytics() {
        TigerStyleWhiskers_Admin_Pages::render_consent_analytics();
    }
    
    /**
     * Render data requests page
     */
    public function render_data_requests() {
        TigerStyleWhiskers_Admin_Pages::render_data_requests();
    }
    
    /**
     * Render cookie scanner page
     */
    public function render_cookie_scanner() {
        TigerStyleWhiskers_Admin_Pages::render_cookie_scanner();
    }
    
    /**
     * Render compliance monitor page
     */
    public function render_compliance_monitor() {
        TigerStyleWhiskers_Admin_Pages::render_compliance_monitor();
    }
    
    /**
     * Render settings page
     */
    public function render_settings() {
        TigerStyleWhiskers_Admin_Pages::render_settings();
    }
    
    /**
     * AJAX: Handle data request
     */
    public function handle_data_request() {
        check_ajax_referer('whiskers_admin_nonce', 'nonce');
        
        if (!current_user_can('manage_options')) {
            wp_die(__('Insufficient permissions', 'tigerstyle-whiskers'));
        }
        
        $request_type = sanitize_text_field($_POST['request_type']);
        $email = sanitize_email($_POST['email']);
        
        // Process through data deletion whisker
        $data_deletion = tigerstyle_whiskers()->get_whisker('data_deletion');
        if ($data_deletion) {
            $result = $data_deletion->process_request($request_type, $email);
            wp_send_json_success($result);
        } else {
            wp_send_json_error(__('Data deletion whisker not available', 'tigerstyle-whiskers'));
        }
    }
    
    /**
     * AJAX: Run cookie scan
     */
    public function run_cookie_scan() {
        check_ajax_referer('whiskers_admin_nonce', 'nonce');
        
        if (!current_user_can('manage_options')) {
            wp_die(__('Insufficient permissions', 'tigerstyle-whiskers'));
        }
        
        // Simulate cookie scanning (would integrate with actual scanner)
        sleep(2); // Simulate scanning time
        
        $cookies = array(
            'necessary' => array('wordpress_test_cookie', 'PHPSESSID'),
            'analytics' => array('_ga', '_gid', '_gat'),
            'marketing' => array('_fbp', 'tr'),
            'preferences' => array('wp-settings-1'),
        );
        
        wp_send_json_success(array(
            'message' => __('Cookie scan completed with feline precision!', 'tigerstyle-whiskers'),
            'cookies' => $cookies,
            'total' => array_sum(array_map('count', $cookies))
        ));
    }
    
    /**
     * AJAX: Update compliance settings
     */
    public function update_compliance_settings() {
        check_ajax_referer('whiskers_admin_nonce', 'nonce');
        
        if (!current_user_can('manage_options')) {
            wp_die(__('Insufficient permissions', 'tigerstyle-whiskers'));
        }
        
        $settings = $_POST['settings'];
        
        // Sanitize and update settings
        $sanitized_settings = array();
        foreach ($settings as $key => $value) {
            $sanitized_settings[sanitize_key($key)] = sanitize_text_field($value);
        }
        
        update_option('whiskers_compliance_settings', $sanitized_settings);
        
        wp_send_json_success(array(
            'message' => __('Compliance settings updated successfully!', 'tigerstyle-whiskers')
        ));
    }
    
    /**
     * Save data inventory completion status
     */
    public function save_inventory_completion() {
        // Verify nonce
        if (!wp_verify_nonce($_POST['nonce'], 'tigerstyle_whiskers_ajax')) {
            wp_die('Security check failed', 'Error', array('response' => 403));
        }
        
        // Update option to mark inventory as completed
        update_option('tigerstyle_whiskers_data_inventory_completed', true);
        
        wp_send_json_success(array(
            'message' => 'Data inventory completion saved successfully'
        ));
    }
    
    /**
     * Schedule compliance review
     */
    public function schedule_compliance_review() {
        // Verify nonce
        if (!wp_verify_nonce($_POST['nonce'], 'whiskers_admin_nonce')) {
            wp_die('Security check failed', 'Error', array('response' => 403));
        }
        
        // Calculate next quarterly review date (3 months from now)
        $next_review_date = date('Y-m-d H:i:s', strtotime('+3 months'));
        
        // Get existing scheduled reviews
        $scheduled_reviews = get_option('tigerstyle_whiskers_scheduled_reviews', array());
        
        // Add new review to the schedule
        $new_review = array(
            'id' => uniqid(),
            'type' => 'quarterly_compliance',
            'scheduled_date' => $next_review_date,
            'status' => 'scheduled',
            'created_date' => current_time('mysql'),
            'created_by' => get_current_user_id(),
            'description' => 'Quarterly compliance review for multi-jurisdiction privacy regulations'
        );
        
        $scheduled_reviews[] = $new_review;
        
        // Save updated schedule
        update_option('tigerstyle_whiskers_scheduled_reviews', $scheduled_reviews);
        
        // Also set a flag that reviews are scheduled
        update_option('tigerstyle_whiskers_reviews_scheduled', true);
        
        wp_send_json_success(array(
            'message' => 'Compliance review scheduled successfully',
            'next_review_date' => $next_review_date,
            'formatted_date' => date('F j, Y', strtotime($next_review_date))
        ));
    }
}