<?php

/**
 *
 */
class Modula_Admin {

	private $tabs;
	private $menu_links;
	private $version     = '2.0.0';
	private $current_tab = 'general';

	function __construct() {

		// Register our submenus
		add_action( 'admin_menu', array( $this, 'register_submenus' ) );

		// Show general tab
		add_action( 'modula_admin_tab_general', array( $this, 'show_general_tab' ) );

		// Add CSS to admin menu
		add_action( 'admin_head', array( $this, 'admin_custom_css' ) );

		add_action( 'wp_ajax_modula_save_images', array( $this, 'save_images' ) );
		add_action( 'wp_ajax_modula_save_image', array( $this, 'save_image' ) );
		add_action( 'modula_scripts_before_wp_modula', array( $this, 'add_autosuggest_scripts' ) );
		add_action( 'wp_ajax_modula_autocomplete', array( $this, 'autocomplete_url' ) );
		add_action( 'delete_attachment', array( $this, 'delete_resized_image' ) );

		add_action( 'wp_ajax_modula_lbu_notice', array( $this, 'modula_lbu_notice' ) );
		add_action( 'admin_init', array( $this, 'register_affiliate_link' ) );
		add_filter( 'modula_admin_page_tabs', array( $this, 'add_affiliate_tab' ) );
		add_action( 'modula_admin_tab_affiliate', array( $this, 'show_affiliate_tab' ) );

		add_filter( 'admin_body_class', array( $this, 'add_body_class' ) );

	}

	public function delete_resized_image( $post_id ) {

		$post = get_post( $post_id );

		if ( 'attachment' !== $post->post_type ) {
			return false;
		}

		// Get the metadata.
		$metadata = wp_get_attachment_metadata( $post_id );
		if ( ! $metadata ) {
			return;
		}

		if ( !isset($metadata['file'] ) ) {
			return;
		}

		$info     = pathinfo( $metadata['file'] );
		$uploads  = wp_upload_dir();
		$filename = $info['filename'];
		$file_dir = $uploads['basedir'] . '/' . $info['dirname'];
		$ext      = $info['extension'];

		if ( ! isset( $metadata['image_meta']['resized_images'] ) ) {
			return;
		}

		if ( count( $metadata['image_meta']['resized_images'] ) > 0 ) {

			foreach ( $metadata['image_meta']['resized_images'] as $value ) {
				$size = '-' . $value;

				// Format the files in the appropriate format
				$file = $file_dir . '/' . $filename . $size . '.' . $ext;
				// Delete found files
				wp_delete_file_from_directory( $file, $file_dir );

			}
		}

	}

	public function register_submenus() {
		$tabs =  array(
			'shortcodes' => array(
				'label'    => esc_html__('Advanced Shortcodes', 'modula-best-grid-gallery'),
				'priority' => 40,
				'badge'    => 'PRO'
        	),
			'watermark' => array(
				'label'    => esc_html__('Watermark', 'modula-best-grid-gallery'),
				'priority' => 50,
				'badge'    => 'PRO'
        	),
			'compression' => array(
				'label'    => esc_html__('SpeedUp Settings', 'modula-best-grid-gallery'),
				'priority' => 30,
				'badge'    => 'PRO'
        	),
			'standalone' => array(
				'label'    => esc_html__('Standalone', 'modula-best-grid-gallery'),
				'priority' => 20,
				'badge'    => 'PRO'
        	),
			'roles' => array(
				'label'    => esc_html__('Roles', 'modula-best-grid-gallery'),
				'priority' => 120,
				'badge'    => 'PRO'
        	)
		);
		$this->tabs = apply_filters( 'modula_admin_page_tabs', $tabs );

		$links = array(
			array(
				'page_title' => esc_html__( 'Import/Export', 'modula-best-grid-gallery' ),
				'menu_title' => esc_html__( 'Import/Export', 'modula-best-grid-gallery' ),
				'capability' => 'manage_options',
				'menu_slug'  => 'modula-import-export',
				'function'   => array( $this, 'import_export_doc' ),
				'priority'   => 35,
			),
			'freevspro' => array(
				'page_title' => esc_html__( 'Free vs PRO', 'modula-best-grid-gallery' ),
				'menu_title' => esc_html__( 'Free vs PRO', 'modula-best-grid-gallery' ),
				'capability' => 'manage_options',
				'menu_slug'  => 'modula-lite-vs-pro',
				'function'   => array( $this, 'lite_vs_pro' ),
				'priority'   => 100,
			),
		);

		$links['modulaalbums'] = array(
			'page_title' => esc_html__( 'Albums', 'modula-best-grid-gallery' ),
			'menu_title' => esc_html__( 'Albums', 'modula-best-grid-gallery' ),
			'capability' => 'manage_options',
			'menu_slug'  => '#modula-albums',
			'function'   => array( $this, 'modula_albums' ),
			'priority'   => 25,
		);

		$links['moduladefaults'] = array(
			'page_title' => esc_html__( 'Gallery Defaults', 'modula-best-grid-gallery' ),
			'menu_title' => esc_html__( 'Gallery Defaults', 'modula-best-grid-gallery' ),
			'capability' => 'manage_options',
			'menu_slug'  => '#gallery-defaults',
			'function'   => array( $this, 'modula_gallery_defaults' ),
			'priority'   => 22,
		);

		$links['albumsdefaults'] = array(
			'page_title' => esc_html__( 'Albums Defaults', 'modula-best-grid-gallery' ),
			'menu_title' => esc_html__( 'Albums Defaults', 'modula-best-grid-gallery' ),
			'capability' => 'manage_options',
			'menu_slug'  => '#albums-defaults',
			'function'   => array( $this, 'modula_albums_defaults' ),
			'priority'   => 26,
		);


		if ( current_user_can( 'install_plugins' ) ) {
			$links[] =
				array(
					'page_title' => esc_html__( 'Extensions', 'modula-best-grid-gallery' ),
					'menu_title' => esc_html__( 'Extensions', 'modula-best-grid-gallery' ),
					'capability' => 'manage_options',
					'menu_slug'  => 'modula-addons',
					'function'   => array( $this, 'show_extension_page_tabs' ),
					'priority'   => 99,
				);
		}

		if ( ! empty( $this->tabs ) ) {
			$links[] = array(
				'page_title' => esc_html__( 'Settings', 'modula-best-grid-gallery' ),
				'menu_title' => esc_html__( 'Settings', 'modula-best-grid-gallery' ),
				'capability' => 'manage_options',
				'menu_slug'  => 'modula',
				'function'   => array( $this, 'show_submenu' ),
				'priority'   => 30,
			);
		}

		$this->menu_links = apply_filters( 'modula_admin_page_link', $links );

		// Sort tabs based on priority.
		uasort( $this->tabs, array( 'Modula_Helper', 'sort_data_by_priority' ) );

		// Sort menu items based on priority
		uasort( $this->menu_links, array( 'Modula_Helper', 'sort_data_by_priority' ) );

		if ( ! empty( $this->menu_links ) ) {
			foreach ( $this->menu_links as $link ) {
				if(!empty($link)){
					add_submenu_page( 'edit.php?post_type=modula-gallery', $link['page_title'], $link['menu_title'], $link['capability'], $link['menu_slug'], $link['function'], $link['priority'] );
				}
			}
		}

	}

	public function show_submenu() {

		// Get current tab
		if ( isset( $_GET['modula-tab'] ) && isset( $this->tabs[ $_GET['modula-tab'] ] ) ) {
			$this->current_tab = sanitize_text_field( wp_unslash( $_GET['modula-tab'] ) );
		} else {

			$tabs              = array_keys( $this->tabs );
			$this->current_tab = $tabs[0];

		}

		include 'tabs/modula.php';
	}

	public function show_extension_page_tabs() {

		$tabs = array(
			'galleries'       => array(
				'name'     => esc_html__( 'Galleries', 'modula-best-grid-gallery' ),
				'url'      => admin_url( 'edit.php?post_type=modula-gallery' ),
				'priority' => '1',
			),
			'suggest_feature' => array(
				'name'     => esc_html__( 'Suggest a feature', 'modula-best-grid-gallery' ),
				'icon'     => 'dashicons-external',
				'url'      => 'https://docs.google.com/forms/d/e/1FAIpQLSc5eAZbxGROm_WSntX_3JVji2cMfS3LIbCNDKG1yF_VNe3R4g/viewform',
				'target'   => '_blank',
				'priority' => '10',
			),
		);

		if ( current_user_can( 'install_plugins' ) ) {
			$tabs[ 'extensions' ] = array(
					'name'     => esc_html__( 'Extensions', 'modula-best-grid-gallery' ),
					'url'      => admin_url( 'edit.php?post_type=modula-gallery&page=modula-addons' ),
					'priority' => '5',
			);
		}

		$tabs = apply_filters( 'modula_extesions_tabs', $tabs );

		uasort( $tabs, array( 'Modula_Helper', 'sort_data_by_priority' ) );

		$active_tab = 'extensions';
		if ( isset( $_GET['tab'] ) && isset( $tabs[ $_GET['tab'] ] ) ) {
			$active_tab = sanitize_text_field( wp_unslash( $_GET['tab'] ) );
		}
		?>
		<div class="wrap">


		<h2 class="nav-tab-wrapper">
			<?php
			Modula_Admin_Helpers::modula_tab_navigation( $tabs, $active_tab );
			?>
			<?php do_action('modula_extensions_tabs_extra_actions'); ?>
			<div class="reload-extensions-wrapper">
				<?php
				$t_ext_timeout = get_transient( 'timeout_modula_all_extensions' );
				$timezone      = get_option( 'timezone_string' );
				$gmt_offset    = get_option( 'gmt_offset' );
				$offset        = ( 7 * 24 * 60 * 60 );

				$dt = new DateTime();


				if ( $t_ext_timeout ) {

					echo '<span class="description last-reloaded-extensions">' . esc_html__( 'Last reload: ', 'modula-best-grid-gallery' );

					if ( $timezone && '' != $timezone && (!$gmt_offset || '' == $gmt_offset )) {
						$dt->setTimezone( new DateTimeZone( $timezone ) );
					}

					if ( $gmt_offset && '' != $gmt_offset ) {
						$offset = $offset - ( (int)$gmt_offset * 60 * 60 );
					}

					$dt->setTimestamp( $t_ext_timeout - $offset );

					echo esc_html( $dt->format( get_option( 'date_format' ) . ' ' . get_option( 'time_format' ) ) );

					echo '</span>';
				}
				?>
				<a id="modula-reload-extensions" class="button button-secondary"
				   data-nonce="<?php echo esc_attr( wp_create_nonce( 'modula-reload-extensions' ) ); ?>"><span
							class="dashicons dashicons-update"></span><?php esc_html_e( 'Reload Extensions', 'modula-best-grid-gallery' ); ?>
				</a>
			</div>

		</h2>
		<?php

		if ( 'extensions' == $active_tab ) {

			$addons = new Modula_Addons();
			$pro_ext = false;

			if(!isset($_GET['extensions']) || 'pro' === $_GET['extensions']){
				$pro_ext = true;
			}

			if( $addons->check_free_addons() ){
			?>
				<div class="modula-subtab-navigation wp-clearfix wrap">
					<ul class="subsubsub">
						<li><a href="<?php echo esc_url( add_query_arg(array('extensions' =>'pro')) ); ?>" class="<?php echo $pro_ext ? 'current' : ''; ?>">PRO</a> | </li>
						<li><a href="<?php echo esc_url( add_query_arg(array('extensions' =>'free')) ); ?>" class="<?php echo !$pro_ext ? 'current' : ''; ?>">Free</a></li>
					</ul>
				</div>
			<?php
			 }
			?>

			<div class="modula-addons-container <?php echo !$pro_ext ? 'hidden' : ''; ?>">
				<?php $addons->render_addons(); ?>
			</div>
			<?php if( $addons->check_free_addons() ){ ?>
				<div class="modula-free-addons-container <?php echo $pro_ext ? 'hidden' : ''; ?>">
					<?php $addons->render_free_addons(); ?>
				</div>
				<?php
			}
		} else {
			do_action( "modula_exntesion_{$active_tab}_tab" );
		}

	}

	public function show_general_tab() {
		include 'tabs/general.php';
	}

	private function sanitize_image( $image ) {

		$new_image = array();

		// This list will not contain id because we save our images based on image id.
		$image_attributes = apply_filters(
			'modula_gallery_image_attributes',
			array(
				'id',
				'alt',
				'title',
				'description',
				'halign',
				'valign',
				'link',
				'target',
				'width',
				'height',
				'togglelightbox',
			)
		);

		foreach ( $image_attributes as $attribute ) {
			if ( isset( $image[ $attribute ] ) ) {

				switch ( $attribute ) {
					case 'alt':
						$new_image[ $attribute ] = sanitize_text_field( $image[ $attribute ] );
						break;
					case 'width':
					case 'height':
						$new_image[ $attribute ] = absint( $image[ $attribute ] );
						break;
					case 'title':
					case 'description':
						$new_image[ $attribute ] = wp_filter_post_kses( $image[ $attribute ] );
						break;
					case 'link':
						$new_image[ $attribute ] = esc_url_raw( $image[ $attribute ] );
						break;
					case 'target':
						if ( isset( $image[ $attribute ] ) ) {
							$new_image[ $attribute ] = absint( $image[ $attribute ] );
						} else {
							$new_image[ $attribute ] = 0;
						}
						break;
					case 'togglelightbox':
						if ( isset( $image[ $attribute ] ) ) {
							$new_image[ $attribute ] = absint( $image[ $attribute ] );
						} else {
							$new_image[ $attribute ] = 0;
						}
						break;
					case 'halign':
						if ( in_array( $image[ $attribute ], array( 'left', 'right', 'center' ) ) ) {
							$new_image[ $attribute ] = $image[ $attribute ];
						} else {
							$new_image[ $attribute ] = 'center';
						}
						break;
					case 'valign':
						if ( in_array( $image[ $attribute ], array( 'top', 'bottom', 'middle' ) ) ) {
							$new_image[ $attribute ] = $image[ $attribute ];
						} else {
							$new_image[ $attribute ] = 'middle';
						}
						break;
					default:
						$new_image[ $attribute ] = apply_filters( 'modula_image_field_sanitization', sanitize_text_field( $image[ $attribute ] ), $image[ $attribute ], $attribute );
						break;
				}
			} else {
				$new_image[ $attribute ] = '';
			}
		}

		return $new_image;

	}

	public function save_images() {

		$nonce = $_POST['_wpnonce'];
		if ( ! wp_verify_nonce( $nonce, 'modula-ajax-save' ) ) {
			wp_send_json( array( 'status' => 'failed' ) );
		}

		if ( ! isset( $_POST['gallery'] ) ) {
			wp_send_json( array( 'status' => 'failed' ) );
		}

		$gallery_id = absint( $_POST['gallery'] );

		if ( 'modula-gallery' != get_post_type( $gallery_id ) ) {
			wp_send_json( array( 'status' => 'failed' ) );
		}

		$current_user = wp_get_current_user();
		$ptype = get_post_type_object( 'modula-gallery' );

		if ( ! current_user_can( $ptype->cap->edit_others_posts ) && absint( get_post_field( 'post_author', $gallery_id ) ) !== absint( $current_user->ID ) ) {
			wp_send_json( array( 'status' => __( 'Sorry, you do not have enough permissions.' ) ) );
		}

		if ( ! isset( $_POST['images'] ) ) {
			wp_send_json( array( 'status' => 'failed' ) );
		}

		$old_images = get_post_meta( $gallery_id, 'modula-images', true );
		$images     = json_decode( stripslashes( $_POST['images'] ), true );
		$new_images = array();

		if ( is_array( $images ) ) {
			foreach ( $images as $image ) {
				$new_images[] = $this->sanitize_image( $image );
			}
		}

		update_post_meta( $gallery_id, 'modula-images', $new_images );
		wp_send_json( array( 'status' => 'succes' ) );

	}

	public function save_image() {

		$nonce = $_POST['_wpnonce'];
		if ( ! wp_verify_nonce( $nonce, 'modula-ajax-save' ) ) {
			wp_send_json( array( 'status' => 'failed' ) );
		}

		if ( ! isset( $_POST['gallery'] ) ) {
			wp_send_json( array( 'status' => 'failed' ) );
		}

		$gallery_id = absint( $_POST['gallery'] );

		if ( 'modula-gallery' != get_post_type( $gallery_id ) ) {
			wp_send_json( array( 'status' => 'failed' ) );
		}

		if ( ! isset( $_POST['image'] ) ) {
			wp_send_json( array( 'status' => 'failed' ) );
		}


		$image      = json_decode( stripslashes( $_POST['image'] ), true );
		$old_images = get_post_meta( $gallery_id, 'modula-images', true );

		foreach ( $old_images as $key => $old_image ) {
			if ( $old_image['id'] == $image['id'] ) {
				$old_images[ $key ] = $this->sanitize_image( $image );
			}
		}

		update_post_meta( $gallery_id, 'modula-images', $old_images );
		wp_send_json( array( 'status' => 'succes' ) );

	}

	public function admin_custom_css() {
		?>
		<style type="text/css">
			a#modula-uninstall-link {color: #FF0000 !important;font-weight:bold;}
			li#menu-posts-modula-gallery .wp-submenu li a[href$="modula-addons"] {color: #52ad3a;}
			li#menu-posts-modula-gallery .wp-submenu li a[href$="modula-lite-vs-pro"] {color: gold;}
		</style>

		<?php
	}


	/**
	 *  Add Import/Export tutorial
	 *
	 * @since 2.2.7
	 */
	public function import_export_doc() {
		?>
		<div class="wrap">
			<div class="card">
				<h3><?php esc_html_e( 'Import Galleries', 'modula-best-grid-gallery' ); ?></h3>
				<p><?php esc_html_e( 'In order to import exported galleries head over to "Tools -> Import" or click', 'modula-best-grid-gallery' ); ?>
					<a href="<?php echo esc_url( admin_url( 'import.php' ) ); ?>"><?php esc_html_e( 'here.', 'modula-best-grid-gallery' ); ?></a>
				</p>
				<p><?php echo '<a href="' . esc_url( 'https://wordpress.org/plugins/wordpress-importer/' ) . '" target="_blank">' . esc_html__( 'Install WordPress Importer', 'modula-best-grid-gallery' ) . '</a>' . esc_html__( '( if not installed ). If installed, click on WordPress "Run importer". After that select the export file you desire and click "Upload file and import".', 'modula-best-grid-gallery' ); ?></p>
			</div>
			<div class="card">
				<h3><?php esc_html_e( 'Export Galleries', 'modula-best-grid-gallery' ); ?></h3>
				<p><?php esc_html_e( 'In order to export Modula galleries head over to "Tools -> Export" or click', 'modula-best-grid-gallery' ); ?>
					<a href="<?php echo esc_url( admin_url( 'export.php' ) ); ?>"><?php esc_html_e( 'here.', 'modula-best-grid-gallery' ); ?></a>
				</p>
				<p><?php echo esc_html__( 'Select "Galleries" and click "Download Export File". An export file will be created and downloaded, which will be used to import the galleries somewhere else.', 'modula-best-grid-gallery' ); ?></p>
			</div>
		</div>
		<?php

	}


	/**
	 * Update modula-checks option for lightbox upgrade notice 1
	 *
	 * @since 2.3.0
	 */
	public function modula_lbu_notice() {

		$nonce = '';
		
		if( isset( $_POST['nonce'] ) ){
			$nonce = $_POST['nonce'];
		}


		if ( ! wp_verify_nonce( $nonce, 'modula-ajax-save' ) ) {
			wp_send_json_error();
			die();
		}

		$modula_checks               = get_option( 'modula-checks', array() );
		$modula_checks['lbu_notice'] = '1';

		update_option( 'modula-checks', $modula_checks );
		wp_die();

	}

	/**
	 * Enqueue jQuery autocomplete script
	 *
	 * /@since 2.3.2
	 */
	public function add_autosuggest_scripts() {

		wp_enqueue_script( 'jquery-ui-autocomplete' );

	}

	public function autocomplete_url() {

		$nonce = $_GET['nonce'];

		if ( ! wp_verify_nonce( $nonce, 'modula-ajax-save' ) ) {
			die();
		}

		$suggestions = array();
		$term        = sanitize_text_field( $_GET['term'] );

		$loop = new WP_Query( 's=' . $term );
		while ( $loop->have_posts() ) {
			$loop->the_post();
			$suggestion['label'] = get_the_title();
			$suggestion['type']  = get_post_type();
			$suggestion['value'] = get_permalink();
			$suggestions[]       = $suggestion;
		}

		echo json_encode( $suggestions );
		exit();
	}

	public function register_affiliate_link() {

		register_setting( 'modula_affiliate', 'modula_affiliate' );

	}


	public function add_affiliate_tab( $tabs ) {

		$tabs['affiliate'] = array(
			'label'    => esc_html__( 'Earn Money', 'modula-best-grid-gallery' ),
			'priority' => 100,
		);
		return $tabs;
	}

	public function show_affiliate_tab() {
		include MODULA_PATH . 'includes/admin/tabs/affiliate-options.php';
	}

	/**
	 *  Add LITE vs PRO page
	 *
	 * @since 2.5.0
	 */
	public function lite_vs_pro() {

	$pro_features = array(
			'gallery-filters' => array(
				'title'       => esc_html__( 'Gallery Filters', 'modula-best-grid-gallery' ),
				'description' => esc_html__( 'Let visitors filter your gallery items with a single click', 'modula-best-grid-gallery' ),
			),
			'gallery-sorting' => array(
				'title'       => esc_html__( 'Gallery Sorting', 'modula-best-grid-gallery' ),
				'description' => esc_html__( 'Multiple choices for sorting out images from your gallery: manual, date created, date modified, alphabetically, reverse or random', 'modula-best-grid-gallery' ),
			),
			'hover-effects' => array(
				'title'       => esc_html__( 'Hover Effects', 'modula-best-grid-gallery' ),
				'description' => esc_html__( 'Choose from 42 different hover effects.', 'modula-best-grid-gallery' ),
			),
			'loadng-effects' => array(
				'title'       => esc_html__( 'Loading Effects', 'modula-best-grid-gallery' ),
				'description' => esc_html__( 'Build your own effects with these new customizations', 'modula-best-grid-gallery' ),
			),
		);

		echo '<div class="modula wrap lite-vs-pro-section about-wrap">';

		do_action( 'modula_lite_vs_premium_page', $pro_features );

		echo '</div>';

	}

	public function modula_albums() {
		return;
	}

	public function modula_gallery_defaults() {
		return;
	}

	public function modula_albums_defaults() {
		return;
	}

	public function add_body_class( $classes ){
		$screen = get_current_screen();

		if ( 'modula-gallery' != $screen->post_type ) {
			return $classes;
		}

		if ( 'post' != $screen->base ) {
			return $classes;
		}

		$classes .= ' single-modula-gallery';
		return $classes;

	}

}

new Modula_Admin();