<?php

// Prevent loading this file directly

defined( 'ABSPATH' ) || exit;

require_once RWMB_FIELDS_DIR . 'image.php';

if ( ! class_exists( 'RWMB_Image_Advanced_Field' ) )

{

	class RWMB_Image_Advanced_Field extends RWMB_Image_Field

	{

		/**

		 * Enqueue scripts and styles

		 *

		 * @return void

		 */

		static function admin_enqueue_scripts()

		{

			parent::admin_enqueue_scripts();



			// Make sure scripts for new media uploader in WordPress 3.5 is enqueued

			wp_enqueue_media();

			wp_enqueue_script( 'rwmb-image-advanced', RWMB_JS_URL . 'image-advanced.js', array( 'jquery', 'underscore' ), RWMB_VER, true );

			wp_localize_script( 'rwmb-image-advanced', 'rwmbImageAdvanced', array(

				'frameTitle' => esc_html__( 'Select Images', 'harvest' ),

			) );

		}



		/**

		 * Add actions

		 *

		 * @return void

		 */

		static function add_actions()

		{

			// Do same actions as file field

			parent::add_actions();



			// Attach images via Ajax

			add_action( 'wp_ajax_rwmb_attach_media', array( __CLASS__, 'wp_ajax_attach_media' ) );

			add_action( 'print_media_templates', array( __CLASS__, 'print_templates' ) );

		}



		/**

		 * Ajax callback for attaching media to field

		 *

		 * @return void

		 */

		static function wp_ajax_attach_media()

		{

			$post_id = is_numeric( $_REQUEST['post_id'] ) ? $_REQUEST['post_id'] : 0;

			$field_id = isset( $_POST['field_id'] ) ? $_POST['field_id'] : 0;

			$attachment_ids = isset( $_POST['attachment_ids'] ) ? $_POST['attachment_ids'] : array();



			check_ajax_referer( "rwmb-attach-media_{$field_id}" );

			foreach ( $attachment_ids as $attachment_id )

			{

				add_post_meta( $post_id, $field_id, $attachment_id, false );

			}

			wp_send_json_success();

		}



		/**

		 * Get field HTML

		 *

		 * @param mixed  $meta

		 * @param array  $field

		 *

		 * @return string

		 */

		static function html( $meta, $field )

		{

			$i18n_title = apply_filters( 'rwmb_image_advanced_select_string', _x( 'Select or Upload Images', 'image upload', 'harvest' ), $field );

			$attach_nonce = wp_create_nonce( "rwmb-attach-media_{$field['id']}" );



			// Uploaded images

			$html = self::get_uploaded_images( $meta, $field );



			// Show form upload

			$classes = array( 'button', 'rwmb-image-advanced-upload', 'hide-if-no-js', 'new-files' );

			if ( ! empty( $field['max_file_uploads'] ) && count( $meta ) >= (int) $field['max_file_uploads'] )

				$classes[] = 'hidden';



			$classes = implode( ' ', $classes );

			$html .= "<a href='#' class='{$classes}' data-attach_media_nonce={$attach_nonce}>{$i18n_title}</a>";



			return $html;

		}



		/**

		 * Get field value

		 * It's the combination of new (uploaded) images and saved images

		 *

		 * @param array $new

		 * @param array $old

		 * @param int   $post_id

		 * @param array $field

		 *

		 * @return array|mixed

		 */

		static function value( $new, $old, $post_id, $field )

		{

			$new = (array) $new;

			return array_unique( array_merge( $old, $new ) );

		}



		static function print_templates()

		{

			$i18n_delete = apply_filters( 'rwmb_image_delete_string', _x( 'Delete', 'image upload', 'harvest' ) );

			$i18n_edit   = apply_filters( 'rwmb_image_edit_string', _x( 'Edit', 'image upload', 'harvest' ) );

			?>

            <script id="tmpl-rwmb-image-advanced" type="text/html">

				<# _.each( attachments, function( attachment ) { #>

				<li id="item_{{{ attachment.id }}}">

					<# if ( attachment.sizes.hasOwnProperty( 'thumbnail' ) ) { #>

						<img src="{{{ attachment.sizes.thumbnail.url }}}">

					<# } else { #>

						<img src="{{{ attachment.sizes.full.url }}}">

					<# } #>

					<div class="rwmb-image-bar">

						<a title="<?php echo $i18n_edit; ?>" class="rwmb-edit-file" href="{{{ attachment.editLink }}}" target="_blank"><?php echo $i18n_edit; ?></a> |

						<a title="<?php echo $i18n_delete; ?>" class="rwmb-delete-file" href="#" data-attachment_id="{{{ attachment.id }}}">&#42</a>

					</div>

				</li>

				<# } ); #>

			</script>

            <?php

		}



	}

}

