<?php

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

class Adv_Vis_Ele_Admin {
	private $plugin_name, $version, $library;
	
	public function __construct($plugin_name, $version) {
		$this->plugin_name = $plugin_name;
		$this->version = $version;
		$this->library = new Adv_Vis_Ele_Library();
	}
	
	/**
	 * Register the stylesheets for the admin area.
	 */
	public function enqueue_styles() {
		if (Adv_Vis_Ele_Admin::visiting_plugin_pages()) {
			if (!wp_style_is('wp-color-picker')) {
				wp_enqueue_style('wp-color-picker');
			}
			
			if (!wp_style_is('font-awesome')) {
				wp_enqueue_style('font-awesome', ADV_VIS_ELE_PLUGIN_URL . 'vendor/fontawesome-5.15.1/css/all.min.css', [], $this->version, 'all');
			}
			
			if (!wp_style_is($this->plugin_name)) {
				wp_enqueue_style($this->plugin_name, ADV_VIS_ELE_PLUGIN_URL . 'admin/css/adv-vis-ele-admin.css', [], $this->version, 'all');
			}
		}
	}
	
	/**
	 * Check if we're on any of the plugin pages
	 */
	public static function visiting_plugin_pages() {
		return in_array(get_current_screen()->id, ADV_VIS_ELE_PAGE_SCREEN_IDS) || (get_current_screen()->base === 'post' && get_current_screen()->post_type === 'adv-vis-element');
	}
	
	/**
	 * Register JavaScript for the admin area.
	 */
	public function enqueue_scripts() {
		if (Adv_Vis_Ele_Admin::visiting_plugin_pages()) {
			global $pagenow;
			
			// disable auto saves
			switch (get_post_type()) {
				case 'adv-vis-element':
					wp_dequeue_script('autosave');
					break;
			}
			
			$editing_element = (isset($_GET['post_type']) && $pagenow === 'edit.php' && sanitize_text_field($_GET['post_type']) === 'adv-vis-element') || ($pagenow == 'post.php' && get_post_type() == 'adv-vis-element');
			
			if (!did_action('wp_enqueue_media')) {
				wp_enqueue_media();
			}
			
			if (!wp_script_is('jquery')) {
				wp_enqueue_script('jquery');
			}
			
			$adv_ce_settings['codeEditor'] = wp_enqueue_code_editor(['type' => 'text/css']);
			
			if (!wp_script_is('wp-theme-plugin-editor')) {
				wp_enqueue_script('wp-theme-plugin-editor', '', ['jquery'], false, true);
			}
			
			if (!wp_style_is('wp-codemirror')) {
				wp_enqueue_style('wp-codemirror');
			}
			
			if (!wp_script_is('wp-color-picker')) {
				wp_enqueue_script('wp-color-picker');
			}
			if (!wp_script_is('wp-color-picker-alpha')) {
				wp_enqueue_script('wp-color-picker-alpha', ADV_VIS_ELE_PLUGIN_URL . 'admin/js/wp-color-picker-alpha.js', ['wp-color-picker'], '3.0.0', true);
			}
			if (!wp_script_is('popper-js')) {
				wp_enqueue_script('popper-js', ADV_VIS_ELE_PLUGIN_URL . 'vendor/tippyjs/popper.min.js', [], $this->version, true);
			}
			if (!wp_script_is('tippy-js')) {
				wp_enqueue_script('tippy-js', ADV_VIS_ELE_PLUGIN_URL . 'vendor/tippyjs/tippy-bundle.umd.min.js', [], $this->version, true);
			}
			
			if (!wp_script_is($this->plugin_name)) {
				wp_enqueue_script($this->plugin_name, ADV_VIS_ELE_PLUGIN_URL . 'admin/js/adv-vis-ele-admin.js', ['jquery'], $this->version, true);
			}
			
			$is_add_new_btn = is_admin() && $editing_element;
			
			$library_ordering = get_user_meta(get_current_user_id(), 'adv_vis_ele_library_ordering', true);
			
			if (empty($library_ordering)) {
				$library_ordering = 'asc';
				
				add_user_meta(get_current_user_id(), 'adv_vis_ele_library_ordering', $library_ordering);
			}
			
			wp_localize_script($this->plugin_name, 'adv_vis_ele_admin_vars', [
				'nonce' => wp_create_nonce('ave_ajax'),
				'site_url' => site_url(),
				'ajax_url' => admin_url('admin-ajax.php'),
				'admin_url' => admin_url('admin.php'),
				'wp_admin_url' => admin_url(),
				'is_pro' => wpave_fs()->can_use_premium_code(),
				'translations' => Adv_Vis_Ele_i18n::$translations,
				'auto_play_library_videos' => get_option('adv_vis_ele_auto_play_library_videos') == 'on' ? 1 : 0,
				'is_add_new_btn' => $is_add_new_btn,
				'cm_settings' => $adv_ce_settings,
				'library_ordering' => $library_ordering,
				'dev_update_finished' => isset($_GET['adv-vis-ele-library-action']) && sanitize_text_field($_GET['adv-vis-ele-library-action']) === 'update-finished-dev',
				'dynamic_setting_delimiter_start' => Adv_Vis_Ele_Library::$dynamic_settings_delimiter_start,
				'dynamic_setting_delimiter_end' => Adv_Vis_Ele_Library::$dynamic_settings_delimiter_end
			]);
		}
	}
	
	/**
	 * Creates the plugin configuration page(s)
	 */
	public function create_plugin_admin_page() {
		add_menu_page('Advanced Visual Elements', 'Advanced Visual Elements', 'manage_options', 'adv-vis-ele', function () {
			include_once 'partials/adv-vis-ele-admin-library.php';
		}, ADV_VIS_ELE_PLUGIN_URL . 'img/adv-vis-ele-dashicon.png');
		
		add_submenu_page('adv-vis-ele', 'Advanced Visual Elements Library', 'Library', 'manage_options', 'adv-vis-ele', function () {
			include_once 'partials/adv-vis-ele-admin-library.php';
		});
		
		add_submenu_page('adv-vis-ele', 'Advanced Visual Shortcodes', 'Shortcodes', 'manage_options', 'edit.php?post_type=adv-vis-element');
		
		add_submenu_page('adv-vis-ele', 'Advanced Visual Elements Settings', 'Settings', 'manage_options', 'adv-vis-ele-settings', function () {
			include_once 'partials/adv-vis-ele-admin-settings.php';
		});
	}
	
	/**
	 * Add element ID when publishing it for the first time
	 */
	public function on_publish_element($post_id) {
		if (isset($_POST['element-id'])) {
			$element_id = sanitize_text_field($_POST['element-id']);
		}
		
		if (!empty($element_id)) { // this means we are in editor
			update_post_meta($post_id, 'adv-vis-ele-element_id', $element_id);
			update_post_meta($post_id, 'adv-vis-ele-custom_css', sanitize_textarea_field($_POST['adv-vis-ele-editor-custom-css']));
			update_post_meta($post_id, 'adv-vis-ele-mobile_breakpoint', sanitize_text_field($_POST['adv-vis-ele-editor-mobile-breakpoint']));
			update_post_meta($post_id, 'adv-vis-ele-disable_on_mobile', isset($_POST['adv-vis-ele-editor-disable-on-mobile']) ? 'on' : false);
			update_post_meta($post_id, 'adv-vis-ele-container_styles', sanitize_textarea_field($_POST['adv-vis-ele-editor-container-styles']));
			update_post_meta($post_id, 'adv-vis-ele-container_styles_vertical', sanitize_textarea_field($_POST['adv-vis-ele-editor-container-styles-vertical']));
		}
		
		if (isset($_POST['adv-vis-ele-editor-settings'])) {
			$settings = [];
			
			foreach ($_POST['adv-vis-ele-editor-settings'] as $key => $setting) {
				$key = sanitize_text_field($key);
				
				if (is_array($setting)) {
					$settings[$key] = array_map('wp_kses_post', $setting);
				} else {
					$settings[$key] = wp_kses_post($setting);
				}
			}
		}
		
		if (!empty($_POST['adv-vis-ele-editor-settings-dynamic'])) {
			foreach ($_POST['adv-vis-ele-editor-settings-dynamic'] as $setting_name => $dynamic_setting) {
				$setting_name = sanitize_text_field($setting_name);
				
				$settings[$setting_name] = sanitize_text_field($dynamic_setting);
			}
		}
		
		if (isset($_POST['adv-vis-ele-editor-settings-bool'])) {
			foreach ($_POST['adv-vis-ele-editor-settings-bool'] as $bool_name => $bool_value) {
				$bool_name = sanitize_text_field($bool_name);
				
				$settings[$bool_name] = isset($_POST['adv-vis-ele-editor-settings'][$bool_name]) ? sanitize_text_field($_POST['adv-vis-ele-editor-settings'][$bool_name]) : false;
			}
		}
		
		if (!isset($settings) || !isset($element_id)) {
			return;
		}
		
		if (!empty($settings) && !empty($element_id)) {
			$post_meta = Adv_Vis_Ele_Admin::get_element_meta_settings($post_id);
			
			$saving = [];
			
			foreach ($settings as $setting_name => $setting_value) {
				$setting = $this->library->get_element_setting($element_id, $setting_name);
				
				if ($setting) {
					if ($setting->license !== 'free') {
						if (wpave_fs()->can_use_premium_code()) {
							$saving[$setting_name] = Adv_Vis_Ele_Admin::filter_setting($setting, $setting_value);
						} else {
							if (!empty($post_meta)) {
								$saving[$setting_name] = $post_meta[$setting_name];
							} else {
								$saving[$setting_name] = $setting->default;
							}
						}
					} else {
						$saving[$setting_name] = Adv_Vis_Ele_Admin::filter_setting($setting, $setting_value);
					}
				}
			}
			
			Adv_Vis_Ele_Admin::save_element_meta_settings($saving, $post_id);
		}
	}
	
	/**
	 * Get meta settings
	 */
	public static function get_element_meta_settings($post_id) {
		$meta_settings = get_post_meta($post_id, 'adv-vis-ele-editor-settings', true);
		
		if (empty($meta_settings)) {
			return [];
		}
		
		// WordPress automatically adds slashes before they're saved to post meta
		foreach ($meta_settings as $key => $meta_setting) {
			if (is_array($meta_setting)) {
				$meta_settings[$key] = array_map('wp_unslash', $meta_setting);
			} else {
				$meta_settings[$key] = wp_unslash($meta_setting);
			}
		}
		
		return $meta_settings;
	}
	
	/**
	 * Save meta settings
	 */
	public static function save_element_meta_settings($saving, $post_id) {
		return update_post_meta($post_id, 'adv-vis-ele-editor-settings', $saving);
	}
	
	/**
	 * Filter settings
	 */
	public static function filter_setting($setting, $setting_value) {
		if ($setting->type === 'number') {
			if (!empty($setting->min) && !empty($setting->max)) {
				$value = Adv_Vis_Ele_Helpers::clamp($setting_value, $setting->min, $setting->max);
			} else {
				$value = $setting_value;
			}
		} else if ($setting->type === 'boolean') {
			if (strtolower($setting_value) === 'on' || $setting_value === '1' || $setting_value === true) {
				return true;
			}
			
			return false;
		} else {
			$value = $setting_value;
		}
		
		return $value;
	}
	
	/**
	 * Add shortcodes to element lists
	 */
	public function add_shortcodes_to_element_list($defaults) {
		$defaults['ave_element_id'] = 'Library Element';
		$defaults['ave_shortcode'] = 'Shortcode/PHP code';
		
		return $defaults;
	}
	
	/**
	 * Populate shortcodes in element list
	 */
	public function populate_shortcodes_in_element_list($column_name, $post_id) {
		if ($column_name === 'ave_shortcode') {
			echo '<div class="adv-vis-ele-shortcode-list-container">';
			echo '<div><code>[ave-element id=&quot;' . (int)$post_id . '&quot;]</code><i class="adv-vis-ele-elements-list-clipboard fas fa-copy"></i></div>';
			echo '<div><code>&lt;?php echo do_shortcode(&#39;[ave-element id=&quot;' . (int)$post_id . '&quot;]&#39;); ?&gt;</code><i class="adv-vis-ele-elements-list-clipboard fas fa-copy"></i></div>';
			echo '</div>';
		}
		
		if ($column_name === 'ave_element_id') {
			$element_id = get_post_meta($post_id, 'adv-vis-ele-element_id', true);
			
			if (!empty($element_id)) {
				$element = $this->library->get_element($element_id);
				
				echo '<div class="adv-vis-ele-element-list-container">';
				if ($element) {
					echo '<div>' . esc_html($element->name) . '</div>';
				} else {
					echo '<div>' . __('Missing Element.', 'wp-ave') . '</div>';
				}
				echo '</div>';
			}
		}
	}
	
	/**
	 * Get duplicate Element URL/link
	 */
	public static function get_duplicate_link($post_id) {
		$url = admin_url('edit.php');
		
		return add_query_arg([
			'post_type' => 'adv-vis-element',
			'post_id' => $post_id,
			'ave_action' => 'adv_vis_ele_duplicate_element',
			'nonce' => wp_create_nonce('adv_vis_ele_duplicate_element')
		], $url);
	}
	
	/**
	 * Add duplicate button to elements list
	 */
	public function add_duplicate_button($actions, $post) {
		if ($post->post_type === 'adv-vis-element') {
			$actions = array_merge($actions, [
				'adv_vis_ele_duplicate_element' => sprintf('<a href="%1$s">%2$s</a>',
					esc_url(Adv_Vis_Ele_Admin::get_duplicate_link($post->ID)),
					__('Duplicate Element')
				)
			]);
		}
		
		return $actions;
	}
	
	/**
	 * Duplicate element
	 */
	public function duplicate_element() {
		if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
			return;
		}
		
		if (defined('DOING_AJAX') && DOING_AJAX) {
			return;
		}
		
		if (!isset($_GET['ave_action'])) {
			return;
		}
		
		$nonce_verified = isset($_GET['nonce']) && wp_verify_nonce($_GET['nonce'], 'adv_vis_ele_duplicate_element');
		
		if (!$nonce_verified) {
			return;
		}
		
		if (sanitize_text_field($_GET['ave_action']) === 'adv_vis_ele_duplicate_element') {
			$post_id = (int)$_GET['post_id'];
			
			if (!current_user_can('administrator')) {
				return;
			}
			
			$title = get_the_title($post_id);
			
			$oldpost = get_post($post_id);
			
			$current_user = wp_get_current_user();
			$author = $current_user->ID;
			
			$post = [
				'post_title' => $title . ' (duplicate)',
				'post_status' => 'draft',
				'post_type' => $oldpost->post_type,
				'post_author' => $author
			];
			
			$new_post_id = wp_insert_post($post);
			
			$element_id = get_post_meta($post_id, 'adv-vis-ele-element_id', true);
			add_post_meta($new_post_id, 'adv-vis-ele-element_id', $element_id);
			
			$meta_settings = get_post_meta($post_id, 'adv-vis-ele-editor-settings', true);
			add_post_meta($new_post_id, 'adv-vis-ele-editor-settings', $meta_settings);
			
			wp_redirect(admin_url('edit.php?post_type=adv-vis-element'));
			
			die();
		}
	}
	
	/**
	 * Add preview link to elements list
	 */
	public function add_preview_link($actions, $post) {
		if ($post->post_type === 'adv-vis-element') {
			$actions = array_merge($actions, [
				'adv_vis_ele_preview_on_front_end' => sprintf('<a href="%1$s" target="_blank">%2$s</a>',
					esc_url(site_url('?ave-preview-on-front=' . esc_attr($post->ID))),
					__('Preview on front-end')
				)
			]);
		}
		
		return $actions;
	}
	
	/**
	 * Plugin settings
	 */
	public function register_plugin_settings() {
		if (empty(get_option('adv_vis_ele_global_mobile_breakpoint'))) {
			add_option('adv_vis_ele_global_mobile_breakpoint', ADV_VIS_ELE_GLOBAL_MOBILE_BREAKPOINT);
			add_option('adv_vis_ele_auto_play_library_videos', 'on');
			add_option('adv_vis_ele_enable_default_meta_viewport', '');
			add_option('adv_vis_ele_delete_settings_on_uninstall', '');
			add_option('adv_vis_ele_disable_admin_commands_frontend', '');
		}
		
		register_setting('adv_vis_ele_general_settings', 'adv_vis_ele_global_mobile_breakpoint');
		register_setting('adv_vis_ele_general_settings', 'adv_vis_ele_auto_play_library_videos');
		register_setting('adv_vis_ele_general_settings', 'adv_vis_ele_enable_default_meta_viewport');
		register_setting('adv_vis_ele_general_settings', 'adv_vis_ele_disable_admin_commands_frontend');
		register_setting('adv_vis_ele_general_settings', 'adv_vis_ele_delete_settings_on_uninstall');
	}
	
	/**
	 * Add "Settings" link to the plugin list page
	 */
	public function add_plugin_page_links($links) {
		$links[] = '<a href="' .
			admin_url('admin.php?page=adv-vis-ele-settings') .
			'">' . __('Settings', 'wp-ave') . '</a>';
		
		return $links;
	}
	
	/**
	 * Add editor body classes to stylize editor interface,
	 */
	public function add_editor_body_classes($classes) {
		if (function_exists('get_current_screen') && get_current_screen() !== null) {
			if (Adv_Vis_Ele_Admin::visiting_plugin_pages()) {
				return $classes . ' adv-vis-ele-admin-editor-interface ';
			}
		}
		
		return $classes;
	}
	
	/**
	 * Keep plugin menu item open in admin menu when editing shortcodes
	 */
	public function keep_admin_menu_parent_item_open($parent_file) {
		if (function_exists('get_current_screen') && get_current_screen() !== null) {
			if (get_current_screen()->id === 'adv-vis-element') {
				$parent_file = 'adv-vis-ele';
				
				global $submenu_file;
				
				$submenu_file = 'edit.php?post_type=adv-vis-element';
			}
		}
		
		return $parent_file;
	}
	
	/**
	 * Adds preview link to publish meta box
	 */
	public function add_preview_link_to_publish_box($post) {
		if ($post->post_type === 'adv-vis-element') {
			if ($post->post_status === 'publish') {
				?>
				<div class="misc-pub-section adv-vis-ele-preview-link">
					<?php
					if (Adv_Vis_Ele_Admin::is_dev()) {
						if (isset($_GET['element-id'])) {
							$element_id = sanitize_text_field($_GET['element-id']);
						} else {
							$element_id = get_post_meta($post->ID, 'adv-vis-ele-element_id', true);
						}
						
						echo '<div>';
						echo '<a target="_blank" href="' . site_url('?ave-preview-on-front=' . esc_attr($post->ID) . '&element-id=' . esc_attr($element_id)) . '">Front end (DEV)</a>';
						echo '</div>';
					}
					?>
					<a href="#" target="_blank"><?php _e('Quick update', 'wp-ave'); ?></a><span class="adv-vis-ele-abbr" data-title="<?php _e('This will refresh Quick preview below and save current options.', 'wp-ave'); ?>">?</span>
				</div>
				<?php
			}
		}
	}
	
	/**
	 * Output shortcode on preview front page
	 */
	public function quick_preview() {
		if (current_user_can('administrator')) {
			if (isset($_GET['ave-preview-on-front']) && !empty($_GET['ave-preview-on-front'])) {
				$shortcode_id = (int)$_GET['ave-preview-on-front'];
				
				if ($shortcode_id > 0) {
					wp_head();
					
					$theme = 'light';
					
					if (isset($_GET['ave-preview-theme'])) {
						$theme = sanitize_text_field($_GET['ave-preview-theme']) === 'dark' ? 'dark' : 'light';
					}
					
					echo '<div class="adv-vis-ele-preview-front-container" data-theme="' . esc_attr($theme) . '">' . do_shortcode('[ave-element id="' . $shortcode_id . '"]') . '</div>';
					
					wp_footer();
					
					die();
				}
			}
		}
	}
	
	/**
	 * Checks if website URL has changed and deactivate localhost mode if it did
	 */
	public function check_site_url($current_screen) {
		if (in_array($current_screen->id, ADV_VIS_ELE_PAGE_SCREEN_IDS) || ($current_screen->base === 'post' && $current_screen->post_type === 'adv-vis-element')) {
			$stored_url = get_option('adv_vis_ele_site_url');
			
			if (empty($stored_url)) {
				update_option('adv_vis_ele_site_url', Adv_Vis_Ele_Helpers::get_root_site_url());
				
				return;
			}
			
			$current_url = Adv_Vis_Ele_Helpers::get_root_site_url();
			
			if ($current_url !== $stored_url) {
				add_action('admin_notices', function () { ?>
					<div class="adv-vis-ele-notice notice notice-error">
						<p><?php _e('It appears your website URL has changed. Localhost mode was deactivated just in case this is a production website. You can reactivate it on the Settings page.', 'wp-ave'); ?></p>
					</div>
				<?php });
			}
		}
	}
	
	/**
	 * Checks if we're the developer
	 */
	public static function is_dev() {
		return defined('ADV_VIS_ELE_DEV') && ADV_VIS_ELE_DEV === true;
	}
	
	/**
	 * Adds a Developer command dashboard
	 */
	public function dev_control_dashboard() {
		if (function_exists('get_current_screen') && get_current_screen() !== null) {
			if (Adv_Vis_Ele_Admin::visiting_plugin_pages()) {
				?>
				<div class="adv-vis-ele-dev-dashboard">
					<h3>WPAVE DEV Dashboard</h3>
					<p>Library version <b><?php echo esc_html($this->library->library_version); ?></b></p>
					<p>Total elements <b><?php echo count($this->library->library_info); ?></b></p>
					<a href="<?php echo admin_url('admin.php?page=adv-vis-ele&adv-vis-ele-library-action=update&adv-vis-ele-library-dev=true'); ?>" class="adv-vis-ele-btn adv-vis-ele-dev-dashboard-to-dev"><b>DEV</b> Update Library</a>
					<a href="<?php echo admin_url('admin.php?page=adv-vis-ele&adv-vis-ele-library-action=update&adv-vis-ele-library-reset=true'); ?>" class="adv-vis-ele-btn adv-vis-ele-dev-dashboard-reset">Reset Library</a>

					<button class="adv-vis-ele-dev-dashboard-toggle"><</button>
				</div>
				<?php
			}
		}
	}
	
	/**
	 * Adds Viewport Meta Tag
	 */
	public function add_viewport_meta_tag() {
		echo '<meta name="viewport" content="width=device-width, initial-scale=1"/>';
	}
}