<?php
/**
 * Plugin Name: 108WP Content Protector Lite
 * Plugin URI: https://108wp.com/#plugin
 * Description: Give your content that extra protection it deserves. Lite version provides protection from human copiers and provides a path to protect your content from unwanted AI agents / bots silently stealing your content. 
 * Version: 1.0.8
 * Author: 108WP
 * Author URI: https://108wp.com
 * Text Domain: 108wp-content-protector-lite
 * Domain Path: /languages
 * Requires at least: 5.8
 * Requires PHP: 7.4
 * License: GPL v2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 */

// Exit if accessed directly
if (!defined('ABSPATH')) {
    exit;
}

// Define plugin constants
define('WP108_CP_VERSION', '1.0.8');
define('WP108_CP_PLUGIN_DIR', plugin_dir_path(__FILE__));
define('WP108_CP_PLUGIN_URL', plugin_dir_url(__FILE__));
define('WP108_CP_PLUGIN_BASENAME', plugin_basename(__FILE__));
define('WP108_CP_TEXT_DOMAIN', '108wp-content-protector-lite');

// IMPORTANT: Configure this URL when you have the Pro version URL
define('WP108_CP_BUY_URL', 'https://108wp.com/#plugin'); 

/**
 * Main Plugin Class - Lite Version
 */
class WP108_Content_Protector_Lite
{

    private static $instance = null;

    /**
     * Get singleton instance
     */
    public static function get_instance()
    {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }

    /**
     * Constructor
     */
    private function __construct()
    {
        $this->load_dependencies();
        $this->init_hooks();
    }

    /**
     * Load required files
     */
    private function load_dependencies()
    {
        require_once WP108_CP_PLUGIN_DIR . 'includes/class-router.php';
        require_once WP108_CP_PLUGIN_DIR . 'includes/class-admin-controller.php';
    }

    /**
     * Initialize WordPress hooks
     */
    private function init_hooks()
    {
        // Activation/Deactivation
        register_activation_hook(__FILE__, array($this, 'activate'));
        register_deactivation_hook(__FILE__, array($this, 'deactivate'));

        // Admin menu
        add_action('admin_menu', array($this, 'add_admin_menu'));

        // Enqueue scripts
        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts'));
        add_action('wp_enqueue_scripts', array($this, 'enqueue_frontend_scripts'));

        // AJAX Handlers (Lite - minimal)
        add_action('wp_ajax_wp108_cp_save_human_settings', array($this, 'ajax_save_human_settings'));
        add_action('wp_ajax_wp108_cp_get_human_settings', array($this, 'ajax_get_human_settings'));

        // Load text domain implicitly handled by WordPress since 4.6

        // Admin notices for lite version
        add_action('admin_notices', array($this, 'show_upgrade_notice'));
    }

    /**
     * Plugin activation
     */
    public function activate()
    {
        // Set default options - ALL human protection features available in Lite!
        $defaults = array(
            'disable_right_click' => false,
            'disable_left_click' => false,
            'disable_text_selection' => false,
            'disable_copy' => false,
            'disable_cut' => false,
            'disable_paste' => false,
            'disable_print' => false,
            'disable_save' => false,
            'disable_view_source' => false,
            'disable_reader_mode' => false,
            'disable_f12' => false,
            'disable_ctrl_u' => false,
            'disable_ctrl_shift_i' => false,
            'disable_ctrl_shift_j' => false,
            'disable_ctrl_shift_c' => false,
            'disable_image_dragging' => false,
            'disable_select_all' => false,
            'disable_developer_tools' => false,
        );
        add_option('wp108_cp_options', $defaults);
        add_option('wp108_cp_version', WP108_CP_VERSION);

        // Mark as lite version
        add_option('wp108_cp_is_lite', true);
    }

    /**
     * Plugin deactivation
     */
    public function deactivate()
    {
        // Cleanup if needed
    }

    /**
     * Add admin menu
     */
    public function add_admin_menu()
    {
        add_menu_page(
            __('108WP Content Protector Lite', '108wp-content-protector-lite'),
            __('108WP Protector Lite', '108wp-content-protector-lite'),
            'manage_options',
            '108wp-content-protector-lite',
            array($this, 'render_admin_page'),
            'dashicons-shield',
            30
        );
    }

    /**
     * Render admin page
     */
    public function render_admin_page()
    {
        $controller = new WP108_CP_Admin_Controller();
        $controller->render();
    }

    /**
     * Enqueue admin scripts
     */
    public function enqueue_admin_scripts($hook)
    {
        // Only load on our plugin page
        if ('toplevel_page_108wp-content-protector-lite' !== $hook) {
            return;
        }

        // Enqueue admin CSS
        wp_enqueue_style(
            'wp108-cp-admin-css',
            WP108_CP_PLUGIN_URL . 'assets/css/admin.css',
            array(),
            WP108_CP_VERSION
        );

        // Enqueue admin JS
        wp_enqueue_script(
            'wp108-cp-admin-js',
            WP108_CP_PLUGIN_URL . 'assets/js/admin.js',
            array('jquery'),
            WP108_CP_VERSION,
            true
        );

        // Localize script
        wp_localize_script('wp108-cp-admin-js', 'wp108Admin', array(
            'ajaxUrl' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('wp108_cp_nonce'),
            'pageUrl' => admin_url('admin.php?page=108wp-content-protector-lite'),
            'buyUrl' => WP108_CP_BUY_URL,
            'isLite' => true,
        ));
    }

    /**
     * Enqueue frontend scripts
     */
    public function enqueue_frontend_scripts()
    {
        // Don't load on admin pages
        if (is_admin()) {
            return;
        }

        // Get enabled settings (ALL features available in Lite)
        $options = get_option('wp108_cp_options', array());

        // Check if any protection is enabled
        $has_protection = false;
        $enabled_protections = array();

        foreach ($options as $key => $value) {
            if ($value) {
                $has_protection = true;
                $enabled_protections[$key] = true;
            }
        }

        if (!$has_protection) {
            return; // No protections enabled
        }

        // Enqueue frontend JS
        wp_enqueue_script(
            'wp108-cp-frontend-js',
            WP108_CP_PLUGIN_URL . 'assets/js/frontend.js',
            array('jquery'),
            WP108_CP_VERSION,
            true
        );

        // Pass settings to frontend
        wp_localize_script('wp108-cp-frontend-js', 'wp108Settings', array(
            'protections' => $enabled_protections,
            'customMessage' => __('Content protection is active on this site.', '108wp-content-protector-lite'),
        ));
    }

    /**
     * AJAX: Save human protection settings (Lite - ALL human features free!)
     */
    public function ajax_save_human_settings()
    {
        check_ajax_referer('wp108_cp_nonce', 'nonce');

        if (!current_user_can('manage_options')) {
            wp_send_json_error(__('Unauthorized', '108wp-content-protector-lite'));
            return;
        }

        $settings = isset($_POST['settings']) ? json_decode(stripslashes($_POST['settings']), true) : array();

        // In Lite, ALL human protection features are available!
        $allowed = array(
            'disable_right_click',
            'disable_left_click',
            'disable_text_selection',
            'disable_copy',
            'disable_cut',
            'disable_paste',
            'disable_print',
            'disable_save',
            'disable_view_source',
            'disable_reader_mode',
            'disable_f12',
            'disable_ctrl_u',
            'disable_ctrl_shift_i',
            'disable_ctrl_shift_j',
            'disable_ctrl_shift_c',
            'disable_image_dragging',
            'disable_select_all',
            'disable_developer_tools',
        );

        $sanitized = array();
        foreach ($allowed as $key) {
            $sanitized[$key] = isset($settings[$key]) ? (bool) $settings[$key] : false;
        }

        update_option('wp108_cp_options', $sanitized);

        wp_send_json_success(array('message' => __('Protection settings saved!', '108wp-content-protector-lite')));
    }

    /**
     * AJAX: Get human protection settings
     */
    public function ajax_get_human_settings()
    {
        check_ajax_referer('wp108_cp_nonce', 'nonce');

        if (!current_user_can('manage_options')) {
            wp_send_json_error(__('Unauthorized', '108wp-content-protector-lite'));
            return;
        }

        $options = get_option('wp108_cp_options', array());

        wp_send_json_success($options);
    }

    /**
     * Show upgrade notice
     */
    public function show_upgrade_notice()
    {
        $screen = get_current_screen();

        if ($screen && $screen->id === 'toplevel_page_108wp-content-protector-lite') {
            ?>
            <div class="notice notice-info is-dismissible">
                <p>
                    <strong><?php esc_html_e('108WP Content Protector Lite', '108wp-content-protector-lite'); ?></strong> -
                    <?php esc_html_e('You are using the free version. Upgrade to Pro for AI bot blocking, watermarking, activity logs, and more.', '108wp-content-protector-lite'); ?>
                    <a href="<?php echo esc_url(WP108_CP_BUY_URL); ?>" target="_blank" class="button button-primary"
                        style="margin-left: 10px;">
                        <?php esc_html_e('Upgrade to Pro', '108wp-content-protector-lite'); ?>
                    </a>
                </p>
            </div>
            <?php
        }
    }
    
    /**
     * Check if this is lite version
     */
    public static function is_lite()
    {
        return get_option('wp108_cp_is_lite', true);
    }

    /**
     * Get upgrade URL
     */
    public static function get_upgrade_url()
    {
        return WP108_CP_BUY_URL;
    }
}

// Initialize plugin
function wp108_content_protector_lite()
{
    return WP108_Content_Protector_Lite::get_instance();
}

// Start the plugin
wp108_content_protector_lite();