<?php
/*
Plugin Name: AstroBook - Appointment Booking for Astrology
Plugin URI: https://your-astrology-website.com
Description: Complete appointment booking solution for astrology websites with Razorpay payments and admin management.
Version: 2.0.0
Author: Simar
Author URI: https://your-website.com
License: GPL-2.0+
Text Domain: astrobook
*/

defined('ABSPATH') || exit;

class AstroBook_Plugin {
    private static $instance = null;
    public $version = '1.0.0';
    
    // Database tables
    public $table_availability;
    public $table_appointments;
    public $table_coupons;
    
    public static function instance() {
        if (is_null(self::$instance)) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    
    public function __construct() {
        global $wpdb;
        $this->table_availability = $wpdb->prefix . 'astrobook_availability';
        $this->table_appointments = $wpdb->prefix . 'astrobook_appointments';
        $this->table_coupons = $wpdb->prefix . 'astrobook_coupons';
        
        // Activation and deactivation hooks
        register_activation_hook(__FILE__, array($this, 'activate'));
        register_deactivation_hook(__FILE__, array($this, 'deactivate'));
        
        // Initialize plugin
        add_action('plugins_loaded', array($this, 'init_plugin'));
    }
    
    public function activate() {
        $this->create_tables();
        $this->create_default_options();
    }
    
    public function deactivate() {
        // Clean up if needed
    }
    
    public function init_plugin() {
        // Set up admin menu
        add_action('admin_menu', array($this, 'create_admin_menu'));
        
        // Enqueue scripts and styles
        add_action('admin_enqueue_scripts', array($this, 'admin_scripts'));
        add_action('wp_enqueue_scripts', array($this, 'frontend_scripts'));
        
        // AJAX handlers
        add_action('wp_ajax_astrobook_save_availability', array($this, 'save_availability'));
        add_action('wp_ajax_astrobook_get_availability', array($this, 'get_availability'));
        add_action('wp_ajax_astrobook_apply_coupon', array($this, 'apply_coupon'));
        add_action('wp_ajax_astrobook_create_order', array($this, 'create_order'));
        add_action('wp_ajax_astrobook_verify_payment', array($this, 'verify_payment'));
        add_action('wp_ajax_nopriv_astrobook_apply_coupon', array($this, 'apply_coupon'));
        add_action('wp_ajax_nopriv_astrobook_create_order', array($this, 'create_order'));
        add_action('wp_ajax_nopriv_astrobook_verify_payment', array($this, 'verify_payment'));
        add_action('wp_ajax_astrobook_get_available_slots', array($this, 'get_available_slots_ajax'));
        add_action('wp_ajax_nopriv_astrobook_get_available_slots', array($this, 'get_available_slots_ajax'));
        
        // Shortcodes
        add_shortcode('astrobook_calendar', array($this, 'calendar_shortcode'));
        add_shortcode('astrobook_booking_form', array($this, 'booking_form_shortcode'));
    }
    
    public function create_tables() {
        global $wpdb;
        $charset_collate = $wpdb->get_charset_collate();
        
        require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
        
        // Availability table
        $sql = "CREATE TABLE {$this->table_availability} (
            id mediumint(9) NOT NULL AUTO_INCREMENT,
            astrologer_id mediumint(9) NOT NULL DEFAULT 0,
            day_of_week tinyint(1) NOT NULL,
            start_time time NOT NULL,
            end_time time NOT NULL,
            is_active tinyint(1) NOT NULL DEFAULT 1,
            PRIMARY KEY  (id)
        ) $charset_collate;";
        dbDelta($sql);
        
        // Appointments table
        $sql = "CREATE TABLE {$this->table_appointments} (
            id mediumint(9) NOT NULL AUTO_INCREMENT,
            user_id bigint(20) NOT NULL,
            astrologer_id mediumint(9) NOT NULL DEFAULT 0,
            appointment_date date NOT NULL,
            start_time time NOT NULL,
            end_time time NOT NULL,
            service_type varchar(100) NOT NULL,
            price decimal(10,2) NOT NULL,
            coupon_code varchar(50) DEFAULT NULL,
            discount decimal(10,2) DEFAULT 0.00,
            total_price decimal(10,2) NOT NULL,
            status varchar(20) NOT NULL DEFAULT 'pending',
            payment_id varchar(255) DEFAULT NULL,
            created_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
            PRIMARY KEY  (id)
        ) $charset_collate;";
        dbDelta($sql);
        
        // Coupons table
        $sql = "CREATE TABLE {$this->table_coupons} (
            id mediumint(9) NOT NULL AUTO_INCREMENT,
            code varchar(50) NOT NULL,
            discount_type varchar(10) NOT NULL COMMENT 'percent or fixed',
            discount_value decimal(10,2) NOT NULL,
            max_uses mediumint(9) DEFAULT NULL,
            used_count mediumint(9) NOT NULL DEFAULT 0,
            start_date date DEFAULT NULL,
            end_date date DEFAULT NULL,
            is_active tinyint(1) NOT NULL DEFAULT 1,
            PRIMARY KEY  (id),
            UNIQUE KEY code (code)
        ) $charset_collate;";
        dbDelta($sql);
    }
    
    public function create_default_options() {
        // Time slots
        if (!get_option('astrobook_time_slots')) {
            update_option('astrobook_time_slots', ['30', '60']);
        }
        
        // Services
        if (!get_option('astrobook_services')) {
            $default_services = [
                ['name' => 'Birth Chart Reading', 'price' => 1500],
                ['name' => 'Career Prediction', 'price' => 1200],
                ['name' => 'Relationship Analysis', 'price' => 1800]
            ];
            update_option('astrobook_services', $default_services);
        }
        
        // Notification settings
        if (!get_option('astrobook_admin_email')) {
            update_option('astrobook_admin_email', get_option('admin_email'));
        }
        
        if (!get_option('astrobook_client_email_subject')) {
            update_option('astrobook_client_email_subject', 'Your Astrology Appointment Confirmation');
        }
        
        if (!get_option('astrobook_client_email_body')) {
            update_option('astrobook_client_email_body', "Hello {name},\n\nYour appointment is confirmed for {date} at {time}.\n\nService: {service}\nAmount: {price}\n\nThank you!");
        }
        
        if (!get_option('astrobook_admin_email_subject')) {
            update_option('astrobook_admin_email_subject', 'New Appointment Booking');
        }
        
        if (!get_option('astrobook_admin_email_body')) {
            update_option('astrobook_admin_email_body', "Hello,\n\nYou have a new appointment booking:\n\nClient: {name}\nEmail: {email}\nDate: {date}\nTime: {time}\nService: {service}\nAmount: {price}\nPayment ID: {payment_id}");
        }
    }
    
    public function create_admin_menu() {
        add_menu_page(
            __('AstroBook', 'astrobook'),
            __('AstroBook', 'astrobook'),
            'manage_options',
            'astrobook',
            array($this, 'admin_dashboard'),
            'dashicons-calendar-alt',
            30
        );
        
        add_submenu_page(
            'astrobook',
            __('Dashboard', 'astrobook'),
            __('Dashboard', 'astrobook'),
            'manage_options',
            'astrobook',
            array($this, 'admin_dashboard')
        );
        
        add_submenu_page(
            'astrobook',
            __('Availability', 'astrobook'),
            __('Availability', 'astrobook'),
            'manage_options',
            'astrobook-availability',
            array($this, 'admin_availability')
        );
        
        add_submenu_page(
            'astrobook',
            __('Appointments', 'astrobook'),
            __('Appointments', 'astrobook'),
            'manage_options',
            'astrobook-appointments',
            array($this, 'admin_appointments')
        );
        
        add_submenu_page(
            'astrobook',
            __('Coupons', 'astrobook'),
            __('Coupons', 'astrobook'),
            'manage_options',
            'astrobook-coupons',
            array($this, 'admin_coupons')
        );
        
        add_submenu_page(
            'astrobook',
            __('Settings', 'astrobook'),
            __('Settings', 'astrobook'),
            'manage_options',
            'astrobook-settings',
            array($this, 'admin_settings')
        );
    }
    
    public function admin_scripts($hook) {
        if (strpos($hook, 'astrobook') === false) return;
        
        // FullCalendar from CDN
        wp_enqueue_style('fullcalendar-core', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/main.min.css', array(), '5.10.1');
        wp_enqueue_script('fullcalendar-core', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/main.min.js', array('jquery'), '5.10.1', true);
        wp_enqueue_script('fullcalendar-interaction', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/interaction/main.min.js', array('fullcalendar-core'), '5.10.1', true);
        wp_enqueue_script('fullcalendar-daygrid', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/daygrid/main.min.js', array('fullcalendar-core'), '5.10.1', true);
        wp_enqueue_script('fullcalendar-timegrid', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/timegrid/main.min.js', array('fullcalendar-core'), '5.10.1', true);
        
        // Plugin-specific assets
        wp_enqueue_style('astrobook-admin', plugin_dir_url(__FILE__) . 'assets/css/admin.css', array(), $this->version);
        wp_enqueue_script('astrobook-admin', plugin_dir_url(__FILE__) . 'assets/js/admin.js', array('jquery', 'fullcalendar-core', 'fullcalendar-interaction', 'fullcalendar-daygrid', 'fullcalendar-timegrid'), $this->version, true);
        
        // Localize script data
        wp_localize_script('astrobook-admin', 'astrobook_admin', array(
            'ajax_url' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('astrobook_admin_nonce'),
            'time_format' => get_option('time_format', 'g:i a'),
            'default_start' => '09:00:00',
            'default_end' => '18:00:00',
            'time_slots' => get_option('astrobook_time_slots', ['30']),
            'colors' => array(
                'available' => '#4caf50',
                'booked' => '#f44336',
                'selected' => '#2196f3',
                'admin' => '#ff9800'
            )
        ));
    }
    
    public function frontend_scripts() {
        global $post;
        if (!is_a($post, 'WP_Post')) return;
        
        if (has_shortcode($post->post_content, 'astrobook_calendar') || 
            has_shortcode($post->post_content, 'astrobook_booking_form')) {
            
            // FullCalendar from CDN
            wp_enqueue_style('fullcalendar-core', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/main.min.css', array(), '5.10.1');
            wp_enqueue_script('fullcalendar-core', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/main.min.js', array('jquery'), '5.10.1', true);
            wp_enqueue_script('fullcalendar-interaction', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/interaction/main.min.js', array('fullcalendar-core'), '5.10.1', true);
            wp_enqueue_script('fullcalendar-daygrid', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/daygrid/main.min.js', array('fullcalendar-core'), '5.10.1', true);
            wp_enqueue_script('fullcalendar-timegrid', 'https://cdn.jsdelivr.net/npm/fullcalendar@5.10.1/timegrid/main.min.js', array('fullcalendar-core'), '5.10.1', true);
            
            // Razorpay
            wp_enqueue_script('razorpay-checkout', 'https://checkout.razorpay.com/v1/checkout.js', array(), null, true);
            
            // Plugin-specific assets
            wp_enqueue_style('astrobook-frontend', plugin_dir_url(__FILE__) . 'assets/css/frontend.css', array(), $this->version);
            wp_enqueue_script('astrobook-frontend', plugin_dir_url(__FILE__) . 'assets/js/frontend.js', array('jquery', 'fullcalendar-core', 'fullcalendar-interaction', 'fullcalendar-daygrid', 'fullcalendar-timegrid', 'razorpay-checkout'), $this->version, true);
            
            // Localize script data
            wp_localize_script('astrobook-frontend', 'astrobook_frontend', array(
                'ajax_url' => admin_url('admin-ajax.php'),
                'nonce' => wp_create_nonce('astrobook_frontend_nonce'),
                'time_format' => get_option('time_format', 'g:i a'),
                'razorpay_key' => get_option('astrobook_razorpay_key'),
                'currency' => 'INR',
                'currency_symbol' => '₹',
                'colors' => array(
                    'available' => '#4caf50',
                    'booked' => '#f44336',
                    'selected' => '#2196f3'
                )
            ));
        }
    }
    
    // Admin pages
    public function admin_dashboard() {
        $this->include_template('admin/dashboard');
    }
    
    public function admin_availability() {
        $this->include_template('admin/availability');
    }
    
    public function admin_appointments() {
        $this->include_template('admin/appointments');
    }
    
    public function admin_coupons() {
        $this->include_template('admin/coupons');
    }
    
    public function admin_settings() {
        $this->include_template('admin/settings');
    }
    
    // Shortcodes
    public function calendar_shortcode() {
        ob_start();
        $this->include_template('frontend/calendar');
        return ob_get_clean();
    }
    
    public function booking_form_shortcode() {
        ob_start();
        $this->include_template('frontend/booking-form');
        return ob_get_clean();
    }
    
    // AJAX handlers
    public function save_availability() {
        check_ajax_referer('astrobook_admin_nonce', 'nonce');
        
        global $wpdb;
        $availability = isset($_POST['availability']) ? json_decode(stripslashes($_POST['availability']), true) : array();
        $astrologer_id = 0;
        
        // Clear existing availability
        $wpdb->delete($this->table_availability, array('astrologer_id' => $astrologer_id));
        
        // Insert new availability
        foreach ($availability as $day => $slots) {
            foreach ($slots as $slot) {
                $wpdb->insert($this->table_availability, array(
                    'astrologer_id' => $astrologer_id,
                    'day_of_week' => $day,
                    'start_time' => $slot['start'],
                    'end_time' => $slot['end'],
                    'is_active' => 1
                ));
            }
        }
        
        wp_send_json_success();
    }
    
    public function get_availability() {
        check_ajax_referer('astrobook_admin_nonce', 'nonce');
        
        global $wpdb;
        $astrologer_id = 0;
        
        $availability = $wpdb->get_results($wpdb->prepare(
            "SELECT day_of_week, start_time, end_time FROM {$this->table_availability} 
            WHERE astrologer_id = %d AND is_active = 1",
            $astrologer_id
        ), ARRAY_A);
        
        $formatted = array();
        foreach ($availability as $slot) {
            $formatted[$slot['day_of_week']][] = array(
                'start' => $slot['start_time'],
                'end' => $slot['end_time']
            );
        }
        
        wp_send_json_success($formatted);
    }
    
    public function get_available_slots($date) {
        global $wpdb;
        
        // Get day of week (0=Sunday, 6=Saturday)
        $day_of_week = date('w', strtotime($date));
        
        // Get available slots for this day
        $available_slots = $wpdb->get_results($wpdb->prepare(
            "SELECT start_time, end_time 
            FROM {$this->table_availability} 
            WHERE day_of_week = %d AND is_active = 1",
            $day_of_week
        ));
        
        // Get booked appointments for this date
        $booked_appointments = $wpdb->get_results($wpdb->prepare(
            "SELECT start_time, end_time 
            FROM {$this->table_appointments} 
            WHERE appointment_date = %s AND status != 'cancelled'",
            $date
        ));
        
        // Generate time slots
        $time_slots = [];
        $time_slot_duration = 30; // minutes
        
        foreach ($available_slots as $slot) {
            $start = strtotime($slot->start_time);
            $end = strtotime($slot->end_time);
            
            while ($start < $end) {
                $slot_start = date('H:i:s', $start);
                $slot_end = date('H:i:s', $start + ($time_slot_duration * 60));
                
                // Check if slot is available
                $is_available = true;
                foreach ($booked_appointments as $appointment) {
                    if ($slot_start >= $appointment->start_time && $slot_start < $appointment->end_time) {
                        $is_available = false;
                        break;
                    }
                }
                
                if ($is_available && ($start + ($time_slot_duration * 60) <= $end)) {
                    $time_slots[] = [
                        'start' => $slot_start,
                        'end' => $slot_end,
                        'formatted' => date(get_option('time_format'), strtotime($slot_start)) . ' - ' . date(get_option('time_format'), strtotime($slot_end))
                    ];
                }
                
                $start += $time_slot_duration * 60;
            }
        }
        
        return $time_slots;
    }
    
    public function get_available_slots_ajax() {
        check_ajax_referer('astrobook_frontend_nonce', 'nonce');
        
        $date = isset($_POST['date']) ? sanitize_text_field($_POST['date']) : '';
        if (empty($date)) {
            wp_send_json_error(array('message' => 'Invalid date'));
        }
        
        $slots = $this->get_available_slots($date);
        wp_send_json_success($slots);
    }
    
    public function apply_coupon() {
        check_ajax_referer('astrobook_frontend_nonce', 'nonce');
        
        $coupon_code = isset($_POST['coupon_code']) ? sanitize_text_field($_POST['coupon_code']) : '';
        $total = isset($_POST['total']) ? floatval($_POST['total']) : 0;
        
        global $wpdb;
        
        $coupon = $wpdb->get_row($wpdb->prepare(
            "SELECT * FROM {$this->table_coupons} WHERE code = %s AND is_active = 1",
            $coupon_code
        ));
        
        if (!$coupon) {
            wp_send_json_error(array('message' => __('Invalid coupon code.', 'astrobook')));
        }
        
        // Check validity
        $now = current_time('Y-m-d');
        if ($coupon->start_date && $coupon->start_date > $now) {
            wp_send_json_error(array('message' => __('Coupon not yet valid.', 'astrobook')));
        }
        
        if ($coupon->end_date && $coupon->end_date < $now) {
            wp_send_json_error(array('message' => __('Coupon has expired.', 'astrobook')));
        }
        
        if ($coupon->max_uses && $coupon->used_count >= $coupon->max_uses) {
            wp_send_json_error(array('message' => __('Coupon usage limit reached.', 'astrobook')));
        }
        
        // Apply discount
        $discount = 0;
        if ($coupon->discount_type == 'percent') {
            $discount = ($coupon->discount_value / 100) * $total;
        } else {
            $discount = $coupon->discount_value;
        }
        
        // Ensure discount doesn't exceed total
        if ($discount > $total) {
            $discount = $total;
        }
        
        $new_total = $total - $discount;
        
        wp_send_json_success(array(
            'discount' => $discount,
            'new_total' => $new_total,
            'coupon_id' => $coupon->id
        ));
    }
    
    public function create_order() {
        check_ajax_referer('astrobook_frontend_nonce', 'nonce');
        
        $api_key = get_option('astrobook_razorpay_key');
        $api_secret = get_option('astrobook_razorpay_secret');
        
        if (empty($api_key) {
            wp_send_json_error(array('message' => 'Razorpay API key is not configured'));
        }
        
        // Include Razorpay SDK
        if (!class_exists('Razorpay\Api\Api')) {
            require_once __DIR__ . '/includes/razorpay-php/Razorpay.php';
        }
        
        $amount = isset($_POST['amount']) ? floatval($_POST['amount']) * 100 : 0; // in paise
        $appointment_data = isset($_POST['appointment_data']) ? $_POST['appointment_data'] : array();
        
        try {
            $api = new Razorpay\Api\Api($api_key, $api_secret);
            $order = $api->order->create(array(
                'receipt' => 'order_rcpt_' . time(),
                'amount' => $amount,
                'currency' => 'INR'
            ));
            
            wp_send_json_success(array(
                'order_id' => $order->id,
                'amount' => $amount,
                'appointment_data' => $appointment_data
            ));
        } catch (Exception $e) {
            wp_send_json_error(array('message' => $e->getMessage()));
        }
    }
    
    public function verify_payment() {
        check_ajax_referer('astrobook_frontend_nonce', 'nonce');
        
        $api_key = get_option('astrobook_razorpay_key');
        $api_secret = get_option('astrobook_razorpay_secret');
        
        // Include Razorpay SDK
        if (!class_exists('Razorpay\Api\Api')) {
            require_once __DIR__ . '/includes/razorpay-php/Razorpay.php';
        }
        
        $api = new Razorpay\Api\Api($api_key, $api_secret);
        
        $razorpay_order_id = isset($_POST['razorpay_order_id']) ? sanitize_text_field($_POST['razorpay_order_id']) : '';
        $razorpay_payment_id = isset($_POST['razorpay_payment_id']) ? sanitize_text_field($_POST['razorpay_payment_id']) : '';
        $razorpay_signature = isset($_POST['razorpay_signature']) ? sanitize_text_field($_POST['razorpay_signature']) : '';
        $appointment_data = isset($_POST['appointment_data']) ? $_POST['appointment_data'] : array();
        
        try {
            $attributes = array(
                'razorpay_order_id' => $razorpay_order_id,
                'razorpay_payment_id' => $razorpay_payment_id,
                'razorpay_signature' => $razorpay_signature
            );
            
            $api->utility->verifyPaymentSignature($attributes);
            
            // Payment successful, create appointment
            $appointment_id = $this->create_appointment($appointment_data, $razorpay_payment_id);
            
            if ($appointment_id) {
                // Send notifications
                $this->send_notification($appointment_id, 'client');
                $this->send_notification($appointment_id, 'admin');
                
                wp_send_json_success(array('appointment_id' => $appointment_id));
            } else {
                wp_send_json_error(array('message' => __('Failed to create appointment.', 'astrobook')));
            }
        } catch (Exception $e) {
            wp_send_json_error(array('message' => $e->getMessage()));
        }
    }
    
    public function create_appointment($data, $payment_id) {
        global $wpdb;
        
        $user_id = get_current_user_id();
        $user = $user_id ? get_userdata($user_id) : null;
        
        $appointment_data = array(
            'user_id' => $user_id,
            'astrologer_id' => 0,
            'appointment_date' => $data['date'],
            'start_time' => $data['start_time'],
            'end_time' => $data['end_time'],
            'service_type' => $data['service'],
            'price' => $data['price'],
            'coupon_code' => $data['coupon_code'],
            'discount' => $data['discount'],
            'total_price' => $data['total'],
            'status' => 'confirmed',
            'payment_id' => $payment_id,
            'created_at' => current_time('mysql')
        );
        
        $wpdb->insert($this->table_appointments, $appointment_data);
        return $wpdb->insert_id;
    }
    
    public function send_notification($appointment_id, $recipient = 'client') {
        global $wpdb;
        $appointment = $wpdb->get_row($wpdb->prepare(
            "SELECT * FROM {$this->table_appointments} WHERE id = %d", 
            $appointment_id
        ));
        
        if (!$appointment) return false;
        
        $user = get_userdata($appointment->user_id);
        $admin_email = get_option('admin_email');
        $astrobook_admin_email = get_option('astrobook_admin_email', $admin_email);
        
        if ($recipient == 'client') {
            $to = $user->user_email;
            $subject = get_option('astrobook_client_email_subject', 'Your Astrology Appointment Confirmation');
            $body = get_option('astrobook_client_email_body');
        } else {
            $to = $astrobook_admin_email;
            $subject = get_option('astrobook_admin_email_subject', 'New Appointment Booking');
            $body = get_option('astrobook_admin_email_body');
        }
        
        // Replace placeholders
        $replacements = array(
            '{name}' => $user->display_name,
            '{email}' => $user->user_email,
            '{date}' => date_i18n(get_option('date_format'), strtotime($appointment->appointment_date)),
            '{time}' => date_i18n(get_option('time_format'), strtotime($appointment->start_time)),
            '{service}' => $appointment->service_type,
            '{price}' => wc_price($appointment->total_price),
            '{payment_id}' => $appointment->payment_id
        );
        
        $body = str_replace(array_keys($replacements), array_values($replacements), $body);
        
        // Send email
        $headers = array('Content-Type: text/html; charset=UTF-8');
        return wp_mail($to, $subject, $body, $headers);
    }
    
    // Helper methods
    private function include_template($template) {
        $template_path = plugin_dir_path(__FILE__) . 'templates/' . $template . '.php';
        if (file_exists($template_path)) {
            include $template_path;
        } else {
            echo '<div class="error"><p>Template not found: ' . esc_html($template_path) . '</p></div>';
        }
    }
    
    private function create_assets_directory() {
        $assets_dir = plugin_dir_path(__FILE__) . 'assets';
        if (!is_dir($assets_dir)) {
            wp_mkdir_p($assets_dir);
            wp_mkdir_p($assets_dir . '/css');
            wp_mkdir_p($assets_dir . '/js');
        }
    }
    
    private function create_default_assets() {
        $this->create_assets_directory();
        
        // Create admin CSS
        $admin_css = <<<CSS
/* Admin CSS */
.astrobook-dashboard .astrobook-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.astrobook-dashboard .stat-box {
    background: #fff;
    border: 1px solid #ccd0d4;
    border-radius: 4px;
    padding: 20px;
    flex: 1;
    text-align: center;
    box-shadow: 0 1px 1px rgba(0,0,0,0.04);
}

.astrobook-dashboard .stat-box h3 {
    margin-top: 0;
    color: #72777c;
}

.astrobook-dashboard .stat-box p {
    font-size: 2em;
    font-weight: bold;
    margin: 10px 0 0;
    color: #0073aa;
}

.astrobook-availability #astrobook-availability-calendar {
    max-width: 900px;
    margin-bottom: 20px;
}

.astrobook-coupons .astrobook-coupon-form {
    background: #fff;
    padding: 20px;
    margin-bottom: 30px;
    border: 1px solid #ccd0d4;
    border-radius: 4px;
    box-shadow: 0 1px 1px rgba(0,0,0,0.04);
}

.astrobook-settings .form-table textarea.large-text {
    min-height: 150px;
}

.status-confirmed {
    color: #4caf50;
    font-weight: bold;
}

.status-pending {
    color: #ff9800;
    font-weight: bold;
}

.status-active {
    color: #4caf50;
    font-weight: bold;
}

.button-danger {
    background: #f44336;
    border-color: #f44336;
    color: white;
}

.button-danger:hover {
    background: #d32f2f;
    border-color: #d32f2f;
    color: white;
}

.astrobook-service {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    align-items: center;
}

.astrobook-service input[type="text"] {
    flex: 2;
}

.astrobook-service input[type="number"] {
    flex: 1;
}
CSS;

        file_put_contents(plugin_dir_path(__FILE__) . 'assets/css/admin.css', $admin_css);
        
        // Create frontend CSS
        $frontend_css = <<<CSS
/* Frontend CSS */
.astrobook-frontend-calendar {
    margin-bottom: 30px;
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.astrobook-booking-form {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    margin-top: 20px;
}

.astrobook-booking-form .form-group {
    margin-bottom: 15px;
}

.astrobook-booking-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.astrobook-booking-form input, 
.astrobook-booking-form select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.astrobook-booking-form button {
    background: #0073aa;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
}

.astrobook-booking-form button:hover {
    background: #005177;
}

#astrobook-coupon-message {
    margin-top: 5px;
    font-style: italic;
}

#astrobook-slots-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.slot-button {
    background: #4caf50;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
}

.slot-button:hover {
    background: #388e3c;
}

.slot-button.selected {
    background: #2196f3;
    border: 2px solid #0d47a1;
}
CSS;

        file_put_contents(plugin_dir_path(__FILE__) . 'assets/css/frontend.css', $frontend_css);
        
        // Create admin JS
        $admin_js = <<<JS
jQuery(document).ready(function($) {
    var calendarEl = document.getElementById('astrobook-availability-calendar');
    if (calendarEl) {
        var calendar = new FullCalendar.Calendar(calendarEl, {
            plugins: ['interaction', 'dayGrid', 'timeGrid'],
            header: {
                left: 'prev,next today',
                center: 'title',
                right: 'dayGridMonth,timeGridWeek,timeGridDay'
            },
            defaultView: 'timeGridWeek',
            editable: true,
            selectable: true,
            selectMirror: true,
            allDaySlot: false,
            slotDuration: '00:15:00',
            slotLabelInterval: '01:00:00',
            events: function(fetchInfo, successCallback, failureCallback) {
                $.ajax({
                    url: astrobook_admin.ajax_url,
                    type: 'POST',
                    data: {
                        action: 'astrobook_get_availability',
                        nonce: astrobook_admin.nonce
                    },
                    success: function(response) {
                        if (response.success) {
                            var events = [];
                            var availability = response.data;
                            
                            // Convert availability to events
                            for (var day in availability) {
                                if (availability.hasOwnProperty(day)) {
                                    availability[day].forEach(function(slot) {
                                        events.push({
                                            daysOfWeek: [day],
                                            startTime: slot.start,
                                            endTime: slot.end,
                                            color: astrobook_admin.colors.available,
                                            rendering: 'background'
                                        });
                                    });
                                }
                            }
                            
                            successCallback(events);
                        }
                    }
                });
            },
            select: function(selectionInfo) {
                // Only allow background selection for availability
                return false;
            },
            dateClick: function(info) {
                // Handle date click for availability
            }
        });
        
        calendar.render();
        
        // Save availability
        $('#astrobook-save-availability').on('click', function() {
            var availability = {};
            
            // Get all background events
            var events = calendar.getEvents().filter(function(event) {
                return event.rendering === 'background';
            });
            
            events.forEach(function(event) {
                var day = event.start.getUTCDay();
                if (!availability[day]) availability[day] = [];
                
                availability[day].push({
                    start: $.fullCalendar.formatDate(event.start, 'HH:mm:ss'),
                    end: $.fullCalendar.formatDate(event.end, 'HH:mm:ss')
                });
            });
            
            $.ajax({
                url: astrobook_admin.ajax_url,
                type: 'POST',
                data: {
                    action: 'astrobook_save_availability',
                    nonce: astrobook_admin.nonce,
                    availability: JSON.stringify(availability)
                },
                success: function(response) {
                    if (response.success) {
                        alert('Availability saved successfully!');
                    }
                }
            });
        });
    }
});
JS;

        file_put_contents(plugin_dir_path(__FILE__) . 'assets/js/admin.js', $admin_js);
        
        // Create frontend JS
        $frontend_js = <<<JS
jQuery(document).ready(function($) {
    var calendarEl = document.getElementById('astrobook-calendar');
    var selectedDate = null;
    var selectedSlot = null;
    var servicePrice = 0;
    var discount = 0;
    var couponId = null;
    
    if (calendarEl) {
        var calendar = new FullCalendar.Calendar(calendarEl, {
            plugins: ['interaction', 'dayGrid', 'timeGrid'],
            header: {
                left: 'prev,next today',
                center: 'title',
                right: 'dayGridMonth,timeGridWeek,timeGridDay'
            },
            initialView: get_option('astrobook_calendar_view', 'timeGridWeek'),
            editable: false,
            selectable: true,
            allDaySlot: false,
            slotDuration: '00:15:00',
            slotLabelInterval: '01:00:00',
            dateClick: function(info) {
                selectedDate = info.dateStr;
                $('#astrobook-time-slots').show();
                $('#astrobook-slots-container').html('<p>Loading available slots...</p>');
                
                $.ajax({
                    url: astrobook_frontend.ajax_url,
                    type: 'POST',
                    data: {
                        action: 'astrobook_get_available_slots',
                        nonce: astrobook_frontend.nonce,
                        date: selectedDate
                    },
                    success: function(response) {
                        if (response.success) {
                            var slotsHtml = '';
                            if (response.data.length > 0) {
                                response.data.forEach(function(slot) {
                                    slotsHtml += '<button type="button" class="slot-button" data-start="' + slot.start + '" data-end="' + slot.end + '">' + slot.formatted + '</button>';
                                });
                            } else {
                                slotsHtml = '<p>No available slots for this date.</p>';
                            }
                            $('#astrobook-slots-container').html(slotsHtml);
                        }
                    }
                });
            },
            eventClick: function(info) {
                // Handle event click
            }
        });
        
        calendar.render();
    }
    
    // Slot selection
    $(document).on('click', '.slot-button', function() {
        $('.slot-button').removeClass('selected');
        $(this).addClass('selected');
        
        var startTime = $(this).data('start');
        var endTime = $(this).data('end');
        
        // Show booking form
        $('.astrobook-booking-form').show();
        $('#astrobook-selected-slot').text(
            'Selected Slot: ' + 
            new Date(selectedDate).toLocaleDateString() + ' ' + 
            new Date('1970-01-01T' + startTime + 'Z').toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' }) + ' - ' +
            new Date('1970-01-01T' + endTime + 'Z').toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' })
        );
        
        $('#astrobook-appointment-date').val(selectedDate);
        $('#astrobook-appointment-start-time').val(startTime);
        $('#astrobook-appointment-end-time').val(endTime);
    });
    
    // Service selection
    $('#astrobook-service').on('change', function() {
        servicePrice = parseFloat($(this).find(':selected').data('price')) || 0;
        updatePriceDisplay();
    });
    
    // Apply coupon
    $('#astrobook-apply-coupon').on('click', function() {
        var couponCode = $('#astrobook-coupon').val();
        if (!couponCode) return;
        
        $.ajax({
            url: astrobook_frontend.ajax_url,
            type: 'POST',
            data: {
                action: 'astrobook_apply_coupon',
                nonce: astrobook_frontend.nonce,
                coupon_code: couponCode,
                total: servicePrice
            },
            success: function(response) {
                if (response.success) {
                    discount = response.data.discount;
                    couponId = response.data.coupon_id;
                    $('#astrobook-coupon-message').text('Coupon applied successfully!').css('color', 'green');
                    updatePriceDisplay();
                } else {
                    discount = 0;
                    couponId = null;
                    $('#astrobook-coupon-message').text(response.data.message).css('color', 'red');
                    updatePriceDisplay();
                }
            }
        });
    });
    
    // Update price display
    function updatePriceDisplay() {
        var total = servicePrice - discount;
        $('#astrobook-price-display').text('₹' + servicePrice.toFixed(2));
        $('#astrobook-discount-display').text('₹' + discount.toFixed(2));
        $('#astrobook-total-display').text('₹' + total.toFixed(2));
    }
    
    // Form submission
    $('#astrobook-appointment-form').on('submit', function(e) {
        e.preventDefault();
        
        var service = $('#astrobook-service').val();
        if (!service) {
            alert('Please select a service');
            return;
        }
        
        var appointmentData = {
            date: $('#astrobook-appointment-date').val(),
            start_time: $('#astrobook-appointment-start-time').val(),
            end_time: $('#astrobook-appointment-end-time').val(),
            service: service,
            price: servicePrice,
            coupon_code: $('#astrobook-coupon').val() || '',
            discount: discount,
            total: servicePrice - discount
        };
        
        // Create Razorpay order
        $.ajax({
            url: astrobook_frontend.ajax_url,
            type: 'POST',
            data: {
                action: 'astrobook_create_order',
                nonce: astrobook_frontend.nonce,
                amount: appointmentData.total,
                appointment_data: appointmentData
            },
            success: function(response) {
                if (response.success) {
                    var order = response.data;
                    var options = {
                        key: astrobook_frontend.razorpay_key,
                        amount: order.amount,
                        currency: 'INR',
                        name: 'Astrology Consultation',
                        description: appointmentData.service,
                        order_id: order.order_id,
                        handler: function(razorpayResponse) {
                            // Verify payment
                            $.ajax({
                                url: astrobook_frontend.ajax_url,
                                type: 'POST',
                                data: {
                                    action: 'astrobook_verify_payment',
                                    nonce: astrobook_frontend.nonce,
                                    razorpay_order_id: razorpayResponse.razorpay_order_id,
                                    razorpay_payment_id: razorpayResponse.razorpay_payment_id,
                                    razorpay_signature: razorpayResponse.razorpay_signature,
                                    appointment_data: order.appointment_data
                                },
                                success: function(verifyResponse) {
                                    if (verifyResponse.success) {
                                        alert('Booking confirmed! Your appointment ID: ' + verifyResponse.data.appointment_id);
                                        location.reload();
                                    } else {
                                        alert('Payment verification failed: ' + verifyResponse.data.message);
                                    }
                                }
                            });
                        },
                        prefill: {
                            name: '',
                            email: '',
                            contact: ''
                        },
                        theme: {
                            color: '#F37254'
                        }
                    };
                    
                    var rzp = new Razorpay(options);
                    rzp.open();
                } else {
                    alert('Error creating order: ' + response.data.message);
                }
            }
        });
    });
});
JS;

        file_put_contents(plugin_dir_path(__FILE__) . 'assets/js/frontend.js', $frontend_js);
    }
    
    private function create_template_files() {
        $templates_dir = plugin_dir_path(__FILE__) . 'templates';
        if (!is_dir($templates_dir)) {
            wp_mkdir_p($templates_dir);
            wp_mkdir_p($templates_dir . '/admin');
            wp_mkdir_p($templates_dir . '/frontend');
        }
        
        // Create admin templates
        $admin_templates = [
            'dashboard' => '<div class="wrap astrobook-dashboard">
    <h1><?php esc_html_e("AstroBook Dashboard", "astrobook"); ?></h1>
    <div class="astrobook-stats">
        <div class="stat-box">
            <h3><?php esc_html_e("Today\'s Appointments", "astrobook"); ?></h3>
            <p>5</p>
        </div>
        <div class="stat-box">
            <h3><?php esc_html_e("Upcoming Appointments", "astrobook"); ?></h3>
            <p>12</p>
        </div>
        <div class="stat-box">
            <h3><?php esc_html_e("Pending Payments", "astrobook"); ?></h3>
            <p>2</p>
        </div>
    </div>
    <div class="astrobook-recent-appointments">
        <h2><?php esc_html_e("Recent Appointments", "astrobook"); ?></h2>
        <table class="wp-list-table widefat fixed striped">
            <thead>
                <tr>
                    <th><?php esc_html_e("ID", "astrobook"); ?></th>
                    <th><?php esc_html_e("Client", "astrobook"); ?></th>
                    <th><?php esc_html_e("Date & Time", "astrobook"); ?></th>
                    <th><?php esc_html_e("Service", "astrobook"); ?></th>
                    <th><?php esc_html_e("Amount", "astrobook"); ?></th>
                    <th><?php esc_html_e("Status", "astrobook"); ?></th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>1</td>
                    <td>John Doe</td>
                    <td>June 20, 2023 10:00 AM</td>
                    <td>Birth Chart Reading</td>
                    <td>₹1500.00</td>
                    <td>Confirmed</td>
                </tr>
                <tr>
                    <td>2</td>
                    <td>Jane Smith</td>
                    <td>June 21, 2023 2:30 PM</td>
                    <td>Career Prediction</td>
                    <td>₹1200.00</td>
                    <td>Pending</td>
                </tr>
            </tbody>
        </table>
    </div>
</div>',
            
            'availability' => '<div class="wrap astrobook-availability">
    <h1><?php esc_html_e("Manage Availability", "astrobook"); ?></h1>
    <div id="astrobook-availability-calendar"></div>
    <button id="astrobook-save-availability" class="button button-primary"><?php esc_html_e("Save Availability", "astrobook"); ?></button>
</div>',
            
            'appointments' => '<div class="wrap astrobook-appointments">
    <h1><?php esc_html_e("Appointments", "astrobook"); ?></h1>
    <table class="wp-list-table widefat fixed striped">
        <thead>
            <tr>
                <th><?php esc_html_e("ID", "astrobook"); ?></th>
                <th><?php esc_html_e("Client", "astrobook"); ?></th>
                <th><?php esc_html_e("Date", "astrobook"); ?></th>
                <th><?php esc_html_e("Time", "astrobook"); ?></th>
                <th><?php esc_html_e("Service", "astrobook"); ?></th>
                <th><?php esc_html_e("Amount", "astrobook"); ?></th>
                <th><?php esc_html_e("Status", "astrobook"); ?></th>
                <th><?php esc_html_e("Actions", "astrobook"); ?></th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>1</td>
                <td>John Doe</td>
                <td>2023-06-20</td>
                <td>10:00 AM - 10:30 AM</td>
                <td>Birth Chart Reading</td>
                <td>₹1500.00</td>
                <td><span class="status-confirmed">Confirmed</span></td>
                <td>
                    <button class="button">Edit</button>
                    <button class="button button-danger">Cancel</button>
                </td>
            </tr>
        </tbody>
    </table>
</div>',
            
            'coupons' => '<div class="wrap astrobook-coupons">
    <h1><?php esc_html_e("Coupons", "astrobook"); ?></h1>
    <div class="astrobook-coupon-form">
        <h2><?php esc_html_e("Add New Coupon", "astrobook"); ?></h2>
        <form method="post" action="options.php">
            <?php settings_fields("astrobook_settings_group"); ?>
            <table class="form-table">
                <tr>
                    <th><label for="coupon_code"><?php esc_html_e("Coupon Code", "astrobook"); ?></label></th>
                    <td><input type="text" name="coupon_code" id="coupon_code" class="regular-text" required></td>
                </tr>
                <tr>
                    <th><label for="discount_type"><?php esc_html_e("Discount Type", "astrobook"); ?></label></th>
                    <td>
                        <select name="discount_type" id="discount_type">
                            <option value="percent"><?php esc_html_e("Percentage", "astrobook"); ?></option>
                            <option value="fixed"><?php esc_html_e("Fixed Amount", "astrobook"); ?></option>
                        </select>
                    </td>
                </tr>
                <tr>
                    <th><label for="discount_value"><?php esc_html_e("Discount Value", "astrobook"); ?></label></th>
                    <td><input type="number" step="0.01" min="0" name="discount_value" id="discount_value" required></td>
                </tr>
                <tr>
                    <th><label for="max_uses"><?php esc_html_e("Maximum Uses", "astrobook"); ?></label></th>
                    <td><input type="number" min="0" name="max_uses" id="max_uses"></td>
                </tr>
                <tr>
                    <th><label for="start_date"><?php esc_html_e("Start Date", "astrobook"); ?></label></th>
                    <td><input type="date" name="start_date" id="start_date"></td>
                </tr>
                <tr>
                    <th><label for="end_date"><?php esc_html_e("End Date", "astrobook"); ?></label></th>
                    <td><input type="date" name="end_date" id="end_date"></td>
                </tr>
            </table>
            <?php submit_button(__("Add Coupon", "astrobook")); ?>
        </form>
    </div>
    <div class="astrobook-coupons-list">
        <h2><?php esc_html_e("Existing Coupons", "astrobook"); ?></h2>
        <table class="wp-list-table widefat fixed striped">
            <thead>
                <tr>
                    <th><?php esc_html_e("Code", "astrobook"); ?></th>
                    <th><?php esc_html_e("Discount", "astrobook"); ?></th>
                    <th><?php esc_html_e("Uses", "astrobook"); ?></th>
                    <th><?php esc_html_e("Validity", "astrobook"); ?></th>
                    <th><?php esc_html_e("Status", "astrobook"); ?></th>
                    <th><?php esc_html_e("Actions", "astrobook"); ?></th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>WELCOME10</td>
                    <td>10%</td>
                    <td>5/20</td>
                    <td>2023-01-01 to 2023-12-31</td>
                    <td><span class="status-active">Active</span></td>
                    <td>
                        <button class="button">Edit</button>
                        <button class="button button-danger">Delete</button>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>
</div>',
            
            'settings' => '<div class="wrap astrobook-settings">
    <h1><?php esc_html_e("AstroBook Settings", "astrobook"); ?></h1>
    <form method="post" action="options.php">
        <?php settings_fields("astrobook_settings_group"); ?>
        <h2><?php esc_html_e("Razorpay Settings", "astrobook"); ?></h2>
        <table class="form-table">
            <tr>
                <th><label for="astrobook_razorpay_key"><?php esc_html_e("Razorpay Key ID", "astrobook"); ?></label></th>
                <td><input type="text" name="astrobook_razorpay_key" id="astrobook_razorpay_key" value="<?php echo esc_attr(get_option("astrobook_razorpay_key")); ?>" class="regular-text"></td>
            </tr>
            <tr>
                <th><label for="astrobook_razorpay_secret"><?php esc_html_e("Razorpay Key Secret", "astrobook"); ?></label></th>
                <td><input type="password" name="astrobook_razorpay_secret" id="astrobook_razorpay_secret" value="<?php echo esc_attr(get_option("astrobook_razorpay_secret")); ?>" class="regular-text"></td>
            </tr>
        </table>
        
        <h2><?php esc_html_e("Notification Settings", "astrobook"); ?></h2>
        <table class="form-table">
            <tr>
                <th><label for="astrobook_admin_email"><?php esc_html_e("Admin Notification Email", "astrobook"); ?></label></th>
                <td><input type="email" name="astrobook_admin_email" id="astrobook_admin_email" value="<?php echo esc_attr(get_option("astrobook_admin_email", get_option("admin_email"))); ?>" class="regular-text"></td>
            </tr>
            <tr>
                <th><label for="astrobook_client_email_subject"><?php esc_html_e("Client Email Subject", "astrobook"); ?></label></th>
                <td><input type="text" name="astrobook_client_email_subject" id="astrobook_client_email_subject" value="<?php echo esc_attr(get_option("astrobook_client_email_subject", "Your Astrology Appointment Confirmation")); ?>" class="regular-text"></td>
            </tr>
            <tr>
                <th><label for="astrobook_client_email_body"><?php esc_html_e("Client Email Body", "astrobook"); ?></label></th>
                <td><textarea name="astrobook_client_email_body" id="astrobook_client_email_body" rows="10" class="large-text"><?php echo esc_textarea(get_option("astrobook_client_email_body", "Hello {name},\\n\\nYour appointment is confirmed for {date} at {time}.\\n\\nService: {service}\\nAmount: {price}\\n\\nThank you!")); ?></textarea></td>
            </tr>
            <tr>
                <th><label for="astrobook_admin_email_subject"><?php esc_html_e("Admin Email Subject", "astrobook"); ?></label></th>
                <td><input type="text" name="astrobook_admin_email_subject" id="astrobook_admin_email_subject" value="<?php echo esc_attr(get_option("astrobook_admin_email_subject", "New Appointment Booking")); ?>" class="regular-text"></td>
            </tr>
            <tr>
                <th><label for="astrobook_admin_email_body"><?php esc_html_e("Admin Email Body", "astrobook"); ?></label></th>
                <td><textarea name="astrobook_admin_email_body" id="astrobook_admin_email_body" rows="10" class="large-text"><?php echo esc_textarea(get_option("astrobook_admin_email_body", "Hello,\\n\\nYou have a new appointment booking:\\n\\nClient: {name}\\nEmail: {email}\\nDate: {date}\\nTime: {time}\\nService: {service}\\nAmount: {price}\\nPayment ID: {payment_id}")); ?></textarea></td>
            </tr>
        </table>
        
        <h2><?php esc_html_e("General Settings", "astrobook"); ?></h2>
        <table class="form-table">
            <tr>
                <th><label for="astrobook_time_slots"><?php esc_html_e("Time Slot Duration (minutes)", "astrobook"); ?></label></th>
                <td>
                    <select name="astrobook_time_slots[]" multiple class="regular-text" style="height: auto;">
                        <?php 
                        $slots = get_option("astrobook_time_slots", ["30", "60"]);
                        $options = [15, 30, 45, 60, 90, 120];
                        foreach ($options as $option) {
                            $selected = in_array($option, $slots) ? "selected" : "";
                            echo '<option value="' . $option . '" ' . $selected . '>' . $option . ' minutes</option>';
                        }
                        ?>
                    </select>
                    <p class="description">Hold Ctrl/Cmd to select multiple options</p>
                </td>
            </tr>
            <tr>
                <th><label><?php esc_html_e("Services", "astrobook"); ?></label></th>
                <td>
                    <div id="astrobook-services-container">
                        <?php
                        $services = get_option("astrobook_services", array());
                        if (!empty($services)) {
                            foreach ($services as $index => $service) {
                                echo '<div class="astrobook-service">';
                                echo '<input type="text" name="astrobook_services[' . $index . '][name]" value="' . esc_attr($service["name"]) . '" placeholder="Service Name" class="regular-text">';
                                echo '<input type="number" name="astrobook_services[' . $index . '][price]" value="' . esc_attr($service["price"]) . '" placeholder="Price" min="0" step="0.01" class="small-text">';
                                echo '<button type="button" class="button astrobook-remove-service">Remove</button>';
                                echo '</div>';
                            }
                        }
                        ?>
                    </div>
                    <button type="button" id="astrobook-add-service" class="button">Add Service</button>
                    <script>
                        jQuery(document).ready(function($) {
                            var serviceIndex = <?php echo count($services) > 0 ? max(array_keys($services)) + 1 : 0; ?>;
                            $("#astrobook-add-service").click(function() {
                                var html = \'<div class="astrobook-service">\' +
                                    \'<input type="text" name="astrobook_services[\' + serviceIndex + \'][name]" placeholder="Service Name" class="regular-text">\' +
                                    \'<input type="number" name="astrobook_services[\' + serviceIndex + \'][price]" placeholder="Price" min="0" step="0.01" class="small-text">\' +
                                    \'<button type="button" class="button astrobook-remove-service">Remove</button>\' +
                                    \'</div>\';
                                $("#astrobook-services-container").append(html);
                                serviceIndex++;
                            });
                            
                            $(document).on("click", ".astrobook-remove-service", function() {
                                $(this).parent().remove();
                            });
                        });
                    </script>
                </td>
            </tr>
        </table>
        
        <?php submit_button(); ?>
    </form>
</div>'
        ];
        
        foreach ($admin_templates as $name => $content) {
            file_put_contents($templates_dir . '/admin/' . $name . '.php', $content);
        }
        
        // Create frontend templates
        $frontend_templates = [
            'calendar' => '<div class="astrobook-frontend-calendar">
    <div id="astrobook-calendar"></div>
    <div id="astrobook-time-slots" style="display:none; margin-top:20px;">
        <h3><?php esc_html_e("Available Time Slots", "astrobook"); ?></h3>
        <div id="astrobook-slots-container"></div>
    </div>
</div>',
            
            'booking-form' => '<div class="astrobook-booking-form" style="display:none;">
    <h3><?php esc_html_e("Book Appointment", "astrobook"); ?></h3>
    <p id="astrobook-selected-slot"></p>
    <form id="astrobook-appointment-form">
        <input type="hidden" id="astrobook-appointment-date">
        <input type="hidden" id="astrobook-appointment-start-time">
        <input type="hidden" id="astrobook-appointment-end-time">
        
        <div class="form-group">
            <label for="astrobook-service"><?php esc_html_e("Service", "astrobook"); ?></label>
            <select id="astrobook-service" required>
                <option value=""><?php esc_html_e("Select a service", "astrobook"); ?></option>
                <?php
                $services = get_option("astrobook_services", array());
                foreach ($services as $service) {
                    echo \'<option value="\' . esc_attr($service["name"]) . \'" data-price="\' . esc_attr($service["price"]) . \'>\' . esc_html($service["name"]) . \' - ₹\' . esc_html($service["price"]) . \'</option>\';
                }
                ?>
            </select>
        </div>
        
        <div class="form-group">
            <label for="astrobook-coupon"><?php esc_html_e("Coupon Code (Optional)", "astrobook"); ?></label>
            <input type="text" id="astrobook-coupon">
            <button type="button" id="astrobook-apply-coupon" class="button"><?php esc_html_e("Apply", "astrobook"); ?></button>
            <p id="astrobook-coupon-message"></p>
        </div>
        
        <div class="form-group">
            <label><?php esc_html_e("Price", "astrobook"); ?></label>
            <p id="astrobook-price-display">₹0.00</p>
        </div>
        
        <div class="form-group">
            <label><?php esc_html_e("Discount", "astrobook"); ?></label>
            <p id="astrobook-discount-display">₹0.00</p>
        </div>
        
        <div class="form-group">
            <label><?php esc_html_e("Total", "astrobook"); ?></label>
            <p id="astrobook-total-display">₹0.00</p>
        </div>
        
        <button type="submit" class="button button-primary"><?php esc_html_e("Book Now", "astrobook"); ?></button>
    </form>
</div>'
        ];
        
        foreach ($frontend_templates as $name => $content) {
            file_put_contents($templates_dir . '/frontend/' . $name . '.php', $content);
        }
    }
}

// Initialize the plugin
function astrobook_plugin() {
    return AstroBook_Plugin::instance();
}

// Start the plugin
astrobook_plugin();