<?php

namespace AdBlockGuard;

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

use Carbon_Fields\Container\Container;
use Carbon_Fields\Field\Field;
use Carbon_Fields\Datastore\Datastore;
use AdBlockGuard\CarbonFieldsSetup;
use AdBlockGuard\LicenseChecker;
use AdBlockGuard\PluginLogger;
use AdBlockGuard\Notices;

class Admin
{
    private static $instance = null;

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

    public function __construct()
    {
        // Register hooks
        $this->register_hooks();
    }

    private function register_hooks()
    {
        // Enqueue admin scripts and styles
        add_action('admin_enqueue_scripts', [$this, 'enqueue_admin_scripts']);
        // Add notices
        add_action('admin_footer', [$this, 'display_admin_notices']);
    }

	public function display_admin_notices()
	{
	    $screen = get_current_screen();
	    if (!$screen || !isset($screen->id) || !in_array($screen->id, [
	        'toplevel_page_wuadblockguard_settings',
	        'adblock-guard_page_wuadblockguard_demo_page',
	        'adblock-guard_page_wuadblockguard_review',
	        'adblock-guard_page_wuadblockguard_help'
	    ])) {
	        return;
	    }

	    // Warning if not enabled
	    if (get_option('_wuadblockguard_enable') !== 'yes') {
	        Notices::instance()->add_notice(
	            'wuadblockguard_disabled_notice',
	            'AdBlock Guard is currently disabled globally. Enable it under the [Detection options] tab. Disable overlays per user role if needed.',
	            'warning',
	            false, // Non-persistent
	            false, // Non-dismissible
	            null // No action button
	        );
	    } else {
	        // Ensure at least one detection method is chosen
	        if (empty(get_option('_wuadblockguard_fast_detection')) &&
	            empty(get_option('_wuadblockguard_custom_load_js_enable')) &&
	            empty(get_option('_wuadblockguard_network_detection')) &&
	            empty(get_option('_wuadblockguard_timing_check_enable')) &&
	            empty(get_option('_wuadblockguard_remote_detection'))) 
	        {
	            Notices::instance()->add_notice(
	                'wuadblockguard_no_detection_notice',
	                'AdBlock Guard requires at least one detection method be selected in the [Detection options] tab.',
	                'error',
	                false, // Non-persistent
	                false, // Non-dismissible
	                null // No action button
	            );
	        }

            $default_devices = ['desktop', 'mobile_tablet'];
            $is_pro_license = (get_option('wuadblockguard_license_status', 'inactive') === 'valid');

            // Free/expired licenses always behave as "both selected".
            if (!$is_pro_license) {
                $render_devices = $default_devices;
                $render_devices_enable = false;
            } else {
                $render_devices_enable = (get_option('_wuadblockguard_render_devices_enable') === 'yes');
                $render_devices = get_option('_wuadblockguard_render_devices', $default_devices);
                $render_devices = is_array($render_devices) ? $render_devices : [];
            }

            $normalized_render_devices = [];
            foreach ($render_devices as $device) {
                if ($device === 'desktop') {
                    $normalized_render_devices['desktop'] = true;
                    continue;
                }

                // Backward compatibility with old three-option values.
                if ($device === 'mobile' || $device === 'tablet' || $device === 'mobile_tablet') {
                    $normalized_render_devices['mobile_tablet'] = true;
                }
            }

            $render_devices = array_keys($normalized_render_devices);

            if ($render_devices_enable && empty($render_devices)) {
                Notices::instance()->add_notice(
                    'wuadblockguard_no_render_device_notice',
                    'AdBlock Guard requires at least one render target device in [Advanced settings] under [Show AdBlock Guard on these device types].',
                    'error',
                    false, // Non-persistent
                    false, // Non-dismissible
                    null // No action button
                );
            }
	    }


	    // Explicitly display notices to ensure rendering
	    Notices::instance()->display_notices();
	}

    public function enqueue_admin_scripts()
    {
        $screen = get_current_screen();

        // Ensure $screen is valid
        if (!$screen) {
            return;
        }

        // Define the allowed screen IDs
        $allowed_screen_ids = [
            'toplevel_page_wuadblockguard_settings',
            'adblock-guard_page_wuadblockguard_demo_page',
            'adblock-guard_page_wuadblockguard_license_key',
            'adblock-guard_page_wuadblockguard_system_check',
        ];

        // If current screen isn't one of these, bail early
        if (!in_array($screen->id, $allowed_screen_ids, true)) {
            return;
        }

        // ---- Enqueues for MAIN SETTINGS PAGE ----
        if (
            strpos($screen->id, 'wuadblockguard_settings') !== false ||
            strpos($screen->id, 'wuadblockguard_demo_page') !== false ||
            strpos($screen->id, 'wuadblockguard_system_check') !== false ||
            strpos($screen->id, 'wuadblockguard_license_key') !== false
        ) {
            // JS: admin-linking
            wp_enqueue_script(
                'wuadblockguard_admin_js_linking',
                ADBLOCKGUARD_PLUGIN_URL . 'assets/js/admin-linking.js',
                ['wp-i18n'],
                ADBLOCKGUARD_VERSION,
                true
            );

            // JS: form-dirty
            wp_enqueue_script(
                'wuadblockguard_admin_form_dirty',
                ADBLOCKGUARD_PLUGIN_URL . 'assets/js/admin-form-dirty.js',
                ['wp-i18n'],
                ADBLOCKGUARD_VERSION,
                true
            );

            // JS: main admin
            wp_enqueue_script(
                'wuadblockguard_admin_js',
                ADBLOCKGUARD_PLUGIN_URL . 'assets/js/admin.js',
                ['wp-i18n'],
                ADBLOCKGUARD_VERSION,
                true
            );

            // JS: admin notices
            wp_enqueue_script(
                'wuadblockguard_admin_js_notices',
                ADBLOCKGUARD_PLUGIN_URL . 'assets/js/admin-notices.js',
                ['wp-i18n'],
                ADBLOCKGUARD_VERSION,
                true
            );

            // JS: validation
            wp_enqueue_script(
                'wuadblockguard_admin_validation_js',
                ADBLOCKGUARD_PLUGIN_URL . 'assets/js/admin-validation.js',
                ['wp-i18n'],
                ADBLOCKGUARD_VERSION,
                true
            );

            // Thickbox
            add_thickbox();

            // JS: demo
            wp_enqueue_script(
                'wuadblockguard_admin_js_demo',
                ADBLOCKGUARD_PLUGIN_URL . 'assets/js/demo.js',
                ['wp-i18n'],
                ADBLOCKGUARD_VERSION,
                true
            );

            $this->enableEncoding();

            if (!defined('ADBLOCKGUARD_IS_PRO')) {
                wp_enqueue_script(
                    'wuadblockguard_free_js',
                    ADBLOCKGUARD_PLUGIN_URL . 'assets/js/free.js',
                    ['wp-i18n'],
                    ADBLOCKGUARD_VERSION,
                    true
                );
            } else {
                wp_enqueue_script(
                    'wuadblockguard_paid_js',
                    ADBLOCKGUARD_PLUGIN_URL . 'assets/js/paid.js',
                    ['wp-i18n'],
                    ADBLOCKGUARD_VERSION,
                    true
                );
            }

            wp_enqueue_style(
                'wuadblockguard_admin_css',
                ADBLOCKGUARD_PLUGIN_URL . 'assets/css/admin.css',
                [],
                ADBLOCKGUARD_VERSION
            );

            wp_enqueue_style(
                'wuadblockguard_form_styles_css',
                ADBLOCKGUARD_PLUGIN_URL . 'assets/css/form-styles.css',
                [],
                ADBLOCKGUARD_VERSION
            );
        }

        // ---- Localization ----
        wp_localize_script(
            'wuadblockguard_admin_js',
            'customAdminData',
            [
                'proFeatureMessage' => 'This is a pro feature',
            ]
        );
    }

    public function wuadblockguard_admin_notice($message, $type = 'warning', $dismissible = false)
    {
        add_action('admin_notices', function () use ($message, $type, $dismissible) {
            // Ensure the type is one of the allowed values
            $allowed_types = ['warning', 'error', 'info', 'success'];
            if (!in_array($type, $allowed_types)) {
                $type = 'warning';
            }

            // Capitalize the first letter of the type for display
            $type_display = ucfirst($type);

            // Check if we are on one of the plugin's admin pages
            $screen = get_current_screen();

            // Determine the class based on whether the notice is dismissible
            $class = $dismissible ? 'is-dismissible' : '';

            if ($screen && isset($screen->id) && 
                (
                    $screen->id === 'toplevel_page_wuadblockguard_settings' 
                    || $screen->id === 'adblock-guard_page_wuadblockguard_demo_page'
                    || $screen->id === 'adblock-guard_page_wuadblockguard_review'
                    || $screen->id === 'adblock-guard_page_wuadblockguard_help'
                )) {
                // Output the notice with the message
                echo sprintf(
                    '<div class="notice notice-%1$s %2$s"><p><strong>%3$s:</strong> %4$s</p></div>',
                    esc_attr($type),
                    esc_html($class),
                    esc_html($type_display),
                    wp_kses_post($message)
                );
            }
        });
    }

    private function enableEncoding()
    {
        if (LicenseChecker::getInstance()->isLicenseValid()) {
            if (!defined('ADBLOCKGUARD_IS_PRO')) {
                define('ADBLOCKGUARD_IS_PRO', true);
            }
        }
    }
}