<?php

if ( fusion_is_element_enabled( 'fusion_images' ) ) {

	if ( ! class_exists( 'FusionSC_ImageCarousel' ) ) {
		/**
		 * Shortcode class.
		 *
		 * @package fusion-builder
		 * @since 1.0
		 */
		class FusionSC_ImageCarousel extends Fusion_Element {

			/**
			 * Image Carousels counter.
			 *
			 * @access private
			 * @since 1.0
			 * @var int
			 */
			private $image_carousel_counter = 1;

			/**
			 * Total number of images.
			 *
			 * @access private
			 * @since 1.8
			 * @var int
			 */
			private $number_of_images = 1;

			/**
			 * The image data.
			 *
			 * @access private
			 * @since 1.0
			 * @var false|array
			 */
			private $image_data = false;

			/**
			 * Parent SC arguments.
			 *
			 * @access protected
			 * @since 1.0
			 * @var array
			 */
			protected $parent_args;

			/**
			 * Child SC arguments.
			 *
			 * @access protected
			 * @since 1.0
			 * @var array
			 */
			protected $child_args;

			/**
			 * Constructor.
			 *
			 * @access public
			 * @since 1.0
			 */
			public function __construct() {
				parent::__construct();
				add_filter( 'fusion_attr_image-carousel-shortcode', array( $this, 'attr' ) );
				add_filter( 'fusion_attr_image-carousel-shortcode-carousel', array( $this, 'carousel_attr' ) );
				add_filter( 'fusion_attr_image-carousel-shortcode-slide-link', array( $this, 'slide_link_attr' ) );
				add_filter( 'fusion_attr_fusion-image-wrapper', array( $this, 'image_wrapper' ) );

				/*
				TODO:
				add_filter( 'fusion_attr_fusion-nav-prev', array( $this, 'fusion_nav_prev' ) );
				add_filter( 'fusion_attr_fusion-nav-next', array( $this, 'fusion_nav_next' ) );
				*/

				add_shortcode( 'fusion_images', array( $this, 'render_parent' ) );
				add_shortcode( 'fusion_image', array( $this, 'render_child' ) );

				add_shortcode( 'fusion_clients', array( $this, 'render_parent' ) );
				add_shortcode( 'fusion_client', array( $this, 'render_child' ) );

			}

			/**
			 * Render the parent shortcode.
			 *
			 * @access public
			 * @since 1.0
			 * @param  array  $args    Shortcode parameters.
			 * @param  string $content Content between shortcode.
			 * @return string          HTML output.
			 */
			public function render_parent( $args, $content = '' ) {

				$defaults = FusionBuilder::set_shortcode_defaults(
					array(
						'hide_on_mobile' => fusion_builder_default_visibility( 'string' ),
						'class'          => '',
						'id'             => '',
						'autoplay'       => 'no',
						'border'         => 'yes',
						'columns'        => '5',
						'column_spacing' => '13',
						'image_id'       => '',
						'lightbox'       => 'no',
						'mouse_scroll'   => 'no',
						'picture_size'   => 'fixed',
						'scroll_items'   => '',
						'show_nav'       => 'yes',
						'hover_type'     => 'none',
					),
					$args,
					'fusion_images'
				);

				$defaults['column_spacing'] = FusionBuilder::validate_shortcode_attr_value( $defaults['column_spacing'], '' );

				extract( $defaults );

				$this->parent_args = $defaults;

				preg_match_all( '/\[fusion_image (.*?)\]/s', $content, $matches );

				if ( isset( $matches[0] ) ) {
					$this->number_of_images = count( $matches[0] );
				}

				$html  = '<div ' . FusionBuilder::attributes( 'image-carousel-shortcode' ) . '>';
				$html .= '<div ' . FusionBuilder::attributes( 'image-carousel-shortcode-carousel' ) . '>';
				$html .= '<div ' . FusionBuilder::attributes( 'fusion-carousel-positioner' ) . '>';

				// The main carousel.
				$html .= '<ul ' . FusionBuilder::attributes( 'fusion-carousel-holder' ) . '>';
				$html .= do_shortcode( $content );
				$html .= '</ul>';

				// Check if navigation should be shown.
				if ( 'yes' === $show_nav ) {
					$html .= '<div ' . FusionBuilder::attributes( 'fusion-carousel-nav' ) . '>';
					$html .= '<span ' . FusionBuilder::attributes( 'fusion-nav-prev' ) . '></span>';
					$html .= '<span ' . FusionBuilder::attributes( 'fusion-nav-next' ) . '></span>';
					$html .= '</div>';
				}
				$html .= '</div>';
				$html .= '</div>';
				$html .= '</div>';

				$this->image_carousel_counter++;

				return $html;

			}

			/**
			 * Builds the attributes array.
			 *
			 * @access public
			 * @since 1.0
			 * @return array
			 */
			public function attr() {

				$attr = fusion_builder_visibility_atts(
					$this->parent_args['hide_on_mobile'],
					array(
						'class' => 'fusion-image-carousel fusion-image-carousel-' . $this->parent_args['picture_size'],
					)
				);

				if ( 'yes' === $this->parent_args['lightbox'] ) {
					$attr['class'] .= ' lightbox-enabled';
				}

				if ( 'yes' === $this->parent_args['border'] ) {
					$attr['class'] .= ' fusion-carousel-border';
				}

				if ( $this->parent_args['class'] ) {
					$attr['class'] .= ' ' . $this->parent_args['class'];
				}

				if ( $this->parent_args['id'] ) {
					$attr['id'] = $this->parent_args['id'];
				}

				return $attr;

			}

			/**
			 * Builds the carousel attributes array.
			 *
			 * @access public
			 * @since 1.0
			 * @return array
			 */
			public function carousel_attr() {

				$attr['class']            = 'fusion-carousel';
				$attr['data-autoplay']    = $this->parent_args['autoplay'];
				$attr['data-columns']     = $this->parent_args['columns'];
				$attr['data-itemmargin']  = $this->parent_args['column_spacing'];
				$attr['data-itemwidth']   = 180;
				$attr['data-touchscroll'] = $this->parent_args['mouse_scroll'];
				$attr['data-imagesize']   = $this->parent_args['picture_size'];
				$attr['data-scrollitems'] = $this->parent_args['scroll_items'];
				return $attr;

			}

			/**
			 * Render the child shortcode.
			 *
			 * @access public
			 * @since 1.0
			 * @param  array  $args   Shortcode parameters.
			 * @param  string $content Content between shortcode.
			 * @return string         HTML output.
			 */
			public function render_child( $args, $content = '' ) {
				global $fusion_library;

				$defaults = FusionBuilder::set_shortcode_defaults(
					array(
						'alt'        => '',
						'image'      => '',
						'image_id'   => '',
						'link'       => '',
						'linktarget' => '_self',
					),
					$args,
					'fusion_image'
				);

				extract( $defaults );

				$this->child_args = $defaults;

				$width = $height = '';

				$image_size = 'full';
				if ( 'fixed' === $this->parent_args['picture_size'] ) {
					$image_size = 'portfolio-two';
					if ( '6' === $this->parent_args['columns'] || '5' === $this->parent_args['columns'] || '4' === $this->parent_args['columns'] ) {
						$image_size = 'blog-medium';
					}
				}

				$this->image_data = $fusion_library->images->get_attachment_data_by_helper( $this->child_args['image_id'], $image );

				$output = '';
				if ( $this->image_data['id'] ) {

					// Responsive images.
					$number_of_columns = ( $this->number_of_images < $this->parent_args['columns'] ) ? $this->number_of_images : $this->parent_args['columns'];

					$fusion_library->images->set_grid_image_meta(
						array(
							'layout'       => 'grid',
							'columns'      => $number_of_columns,
							'gutter_width' => $this->parent_args['column_spacing'],
						)
					);

					if ( $alt ) {
						$output = wp_get_attachment_image( $this->image_data['id'], $image_size, false, array( 'alt' => $alt ) );
					} else {
						$output = wp_get_attachment_image( $this->image_data['id'], $image_size );
					}

					if ( 'full' === $image_size ) {
						$output = $fusion_library->images->edit_grid_image_src( $output, null, $this->image_data['id'], 'full' );
					}

					$fusion_library->images->set_grid_image_meta( array() );
				} else {
					$output = '<img src="' . $image . '" alt="' . $alt . '"/>';
				}

				$output = $fusion_library->images->apply_lazy_loading( $output, null, $this->image_data['id'], 'full' );

				if ( 'no' === $this->parent_args['mouse_scroll'] && ( $link || 'yes' === $this->parent_args['lightbox'] ) ) {
					$output = '<a ' . FusionBuilder::attributes( 'image-carousel-shortcode-slide-link' ) . '>' . $output . '</a>';
				}

				return '<li ' . FusionBuilder::attributes( 'fusion-carousel-item' ) . '><div ' . FusionBuilder::attributes( 'fusion-carousel-item-wrapper' ) . '><div ' . FusionBuilder::attributes( 'fusion-image-wrapper' ) . '>' . $output . '</div></div></li>';
			}

			/**
			 * Builds the slide-link attributes array.
			 *
			 * @access public
			 * @since 1.0
			 * @return array
			 */
			public function slide_link_attr() {

				$attr = array();

				if ( 'yes' === $this->parent_args['lightbox'] ) {

					if ( ! $this->child_args['link'] ) {
						$this->child_args['link'] = $this->child_args['image'];
					}

					$attr['data-rel'] = 'iLightbox[gallery_image_' . $this->image_carousel_counter . ']';

					if ( $this->image_data ) {
						$attr['data-caption'] = $this->image_data['caption'];
						$attr['data-title']   = $this->image_data['title'];
						$attr['aria-label']   = $this->image_data['title'];
					}
				}

				$attr['href'] = $this->child_args['link'];

				$attr['target'] = $this->child_args['linktarget'];
				if ( '_blank' === $this->child_args['linktarget'] ) {
					$attr['rel'] = 'noopener noreferrer';
				}
				return $attr;

			}

			/**
			 * Builds the image-wrapper attributes array.
			 *
			 * @access public
			 * @since 1.0
			 * @return array
			 */
			public function image_wrapper() {
				if ( $this->parent_args['hover_type'] ) {
					return array(
						'class' => 'fusion-image-wrapper hover-type-' . $this->parent_args['hover_type'],
					);
				}
				return array(
					'class' => 'fusion-image-wrapper',
				);
			}

			/**
			 * Builds the "previous" nav attributes array.
			 *
			 * @access public
			 * @since 1.0
			 * @return array
			 */
			public function fusion_nav_prev() {
				return array(
					'class' => 'fusion-nav-prev fusion-icon-left',
				);
			}

			/**
			 * Builds the "next" nav attributes array.
			 *
			 * @access public
			 * @since 1.0
			 * @return array
			 */
			public function fusion_nav_next() {
				return array(
					'class' => 'fusion-nav-next fusion-icon-right',
				);
			}

			/**
			 * Builds the dynamic styling.
			 *
			 * @access public
			 * @since 1.1
			 * @return array
			 */
			public function add_styling() {

				global $wp_version, $content_media_query, $six_fourty_media_query, $three_twenty_six_fourty_media_query, $ipad_portrait_media_query, $fusion_library, $fusion_settings, $dynamic_css_helpers;

				$elements = array(
					'.fusion-carousel .fusion-carousel-nav .fusion-nav-prev',
					'.fusion-carousel .fusion-carousel-nav .fusion-nav-next',
				);
				$css['global'][ $dynamic_css_helpers->implode( $elements ) ]['background-color'] = $fusion_library->sanitize->color( $fusion_settings->get( 'carousel_nav_color' ) );

				$css['global'][ $dynamic_css_helpers->implode( $elements ) ]['width'] = $fusion_library->sanitize->size( $fusion_settings->get( 'slider_nav_box_dimensions', 'width' ) );

				preg_match_all( '!\d+!', $fusion_settings->get( 'slider_nav_box_dimensions', 'height' ), $matches );
				$half_slider_nav_box_height = '' !== $fusion_settings->get( 'slider_nav_box_dimensions', 'height' ) ? $matches[0][0] / 2 . $fusion_library->sanitize->get_unit( $fusion_settings->get( 'slider_nav_box_dimensions', 'height' ) ) : '';

				$css['global'][ $dynamic_css_helpers->implode( $elements ) ]['height']     = $fusion_library->sanitize->size( $fusion_settings->get( 'slider_nav_box_dimensions', 'height' ) );
				$css['global'][ $dynamic_css_helpers->implode( $elements ) ]['margin-top'] = '-' . $half_slider_nav_box_height;

				$elements = array(
					'.fusion-carousel .fusion-carousel-nav .fusion-nav-prev:before',
					'.fusion-carousel .fusion-carousel-nav .fusion-nav-next:before',
				);

				$css['global'][ $dynamic_css_helpers->implode( $elements ) ]['line-height'] = $fusion_library->sanitize->size( $fusion_settings->get( 'slider_nav_box_dimensions', 'height' ) );

				$css['global'][ $dynamic_css_helpers->implode( $elements ) ]['font-size'] = $fusion_library->sanitize->size( $fusion_settings->get( 'slider_arrow_size' ) );

				return $css;
			}

			/**
			 * Sets the necessary scripts.
			 *
			 * @access public
			 * @since 1.1
			 * @return void
			 */
			public function add_scripts() {
				Fusion_Dynamic_JS::enqueue_script( 'fusion-lightbox' );
				Fusion_Dynamic_JS::enqueue_script( 'fusion-carousel' );
			}
		}
	}

	new FusionSC_ImageCarousel();

}

/**
 * Map shortcode to Fusion Builder.
 */
function fusion_element_images() {
	fusion_builder_map(
		array(
			'name'          => esc_attr__( 'Image Carousel', 'fusion-builder' ),
			'shortcode'     => 'fusion_images',
			'multi'         => 'multi_element_parent',
			'element_child' => 'fusion_image',
			'icon'          => 'fusiona-images',
			'preview'       => FUSION_BUILDER_PLUGIN_DIR . 'inc/templates/previews/fusion-image-carousel-preview.php',
			'preview_id'    => 'fusion-builder-block-module-image-carousel-preview-template',
			'params'        => array(
				array(
					'type'        => 'tinymce',
					'heading'     => esc_attr__( 'Content', 'fusion-builder' ),
					'description' => esc_attr__( 'Enter some content for this contentbox.', 'fusion-builder' ),
					'param_name'  => 'element_content',
					'value'       => '[fusion_image link="" linktarget="_self" alt="" /]',
				),
				array(
					'type'             => 'multiple_upload',
					'heading'          => esc_attr__( 'Bulk Image Upload', 'fusion-builder' ),
					'description'      => __( 'This option allows you to select multiple images at once and they will populate into individual items. It saves time instead of adding one image at a time.', 'fusion-builder' ),
					'param_name'       => 'multiple_upload',
					'element_target'   => 'fusion_image',
					'param_target'     => 'image',
					'remove_from_atts' => true,
				),
				array(
					'type'        => 'radio_button_set',
					'heading'     => esc_attr__( 'Picture Size', 'fusion-builder' ),
					'description' => __( 'fixed = width and height will be fixed <br />auto = width and height will adjust to the image.', 'fusion-builder' ),
					'param_name'  => 'picture_size',
					'value'       => array(
						'fixed' => esc_attr__( 'Fixed', 'fusion-builder' ),
						'auto'  => esc_attr__( 'Auto', 'fusion-builder' ),
					),
					'default'     => 'fixed',
				),
				array(
					'type'        => 'select',
					'heading'     => esc_attr__( 'Hover Type', 'fusion-builder' ),
					'description' => esc_attr__( 'Select the hover effect type.', 'fusion-builder' ),
					'param_name'  => 'hover_type',
					'value'       => array(
						'none'    => esc_attr__( 'None', 'fusion-builder' ),
						'zoomin'  => esc_attr__( 'Zoom In', 'fusion-builder' ),
						'zoomout' => esc_attr__( 'Zoom Out', 'fusion-builder' ),
						'liftup'  => esc_attr__( 'Lift Up', 'fusion-builder' ),
					),
					'default'     => 'none',
				),
				array(
					'type'        => 'radio_button_set',
					'heading'     => esc_attr__( 'Autoplay', 'fusion-builder' ),
					'description' => esc_attr__( 'Choose to autoplay the carousel.', 'fusion-builder' ),
					'param_name'  => 'autoplay',
					'value'       => array(
						'yes' => esc_attr__( 'Yes', 'fusion-builder' ),
						'no'  => esc_attr__( 'No', 'fusion-builder' ),
					),
					'default'     => 'no',
				),
				array(
					'type'        => 'range',
					'heading'     => esc_attr__( 'Maximum Columns', 'fusion-builder' ),
					'description' => esc_attr__( 'Select the number of max columns to display.', 'fusion-builder' ),
					'param_name'  => 'columns',
					'value'       => '5',
					'min'         => '1',
					'max'         => '6',
					'step'        => '1',
				),
				array(
					'type'        => 'range',
					'heading'     => esc_attr__( 'Column Spacing', 'fusion-builder' ),
					'description' => esc_attr__( 'Insert the amount of spacing between items without "px". ex: 13.', 'fusion-builder' ),
					'param_name'  => 'column_spacing',
					'value'       => '13',
					'min'         => '0',
					'max'         => '300',
					'step'        => '1',
				),
				array(
					'type'        => 'textfield',
					'heading'     => esc_attr__( 'Scroll Items', 'fusion-builder' ),
					'description' => esc_attr__( 'Insert the amount of items to scroll. Leave empty to scroll number of visible items.', 'fusion-builder' ),
					'param_name'  => 'scroll_items',
					'value'       => '',
				),
				array(
					'type'        => 'radio_button_set',
					'heading'     => esc_attr__( 'Show Navigation', 'fusion-builder' ),
					'description' => esc_attr__( 'Choose to show navigation buttons on the carousel.', 'fusion-builder' ),
					'param_name'  => 'show_nav',
					'value'       => array(
						'yes' => esc_attr__( 'Yes', 'fusion-builder' ),
						'no'  => esc_attr__( 'No', 'fusion-builder' ),
					),
					'default'     => 'yes',
				),
				array(
					'type'        => 'radio_button_set',
					'heading'     => esc_attr__( 'Mouse Scroll', 'fusion-builder' ),
					'description' => esc_attr__( 'Choose to enable mouse drag control on the carousel. IMPORTANT: For easy draggability, when mouse scroll is activated, links will be disabled.', 'fusion-builder' ),
					'param_name'  => 'mouse_scroll',
					'value'       => array(
						'yes' => esc_attr__( 'Yes', 'fusion-builder' ),
						'no'  => esc_attr__( 'No', 'fusion-builder' ),
					),
					'default'     => 'no',
				),
				array(
					'type'        => 'radio_button_set',
					'heading'     => esc_attr__( 'Border', 'fusion-builder' ),
					'description' => esc_attr__( 'Choose to enable a border around the images.', 'fusion-builder' ),
					'param_name'  => 'border',
					'value'       => array(
						'yes' => esc_attr__( 'Yes', 'fusion-builder' ),
						'no'  => esc_attr__( 'No', 'fusion-builder' ),
					),
					'default'     => 'yes',
				),
				array(
					'type'        => 'radio_button_set',
					'heading'     => esc_attr__( 'Image lightbox', 'fusion-builder' ),
					'description' => esc_attr__( 'Show image in lightbox. Lightbox must be enabled in Theme Options or the image will open up in the same tab by itself.', 'fusion-builder' ),
					'param_name'  => 'lightbox',
					'value'       => array(
						'yes' => esc_attr__( 'Yes', 'fusion-builder' ),
						'no'  => esc_attr__( 'No', 'fusion-builder' ),
					),
					'default'     => 'no',
				),
				array(
					'type'        => 'checkbox_button_set',
					'heading'     => esc_attr__( 'Element Visibility', 'fusion-builder' ),
					'param_name'  => 'hide_on_mobile',
					'value'       => fusion_builder_visibility_options( 'full' ),
					'default'     => fusion_builder_default_visibility( 'array' ),
					'description' => __( 'Choose to show or hide the element on small, medium or large screens. You can choose more than one at a time.', 'fusion-builder' ),
				),
				array(
					'type'        => 'textfield',
					'heading'     => esc_attr__( 'CSS Class', 'fusion-builder' ),
					'description' => esc_attr__( 'Add a class to the wrapping HTML element.', 'fusion-builder' ),
					'param_name'  => 'class',
					'value'       => '',
					'group'       => esc_attr__( 'General', 'fusion-builder' ),
				),
				array(
					'type'        => 'textfield',
					'heading'     => esc_attr__( 'CSS ID', 'fusion-builder' ),
					'description' => esc_attr__( 'Add an ID to the wrapping HTML element.', 'fusion-builder' ),
					'param_name'  => 'id',
					'value'       => '',
					'group'       => esc_attr__( 'General', 'fusion-builder' ),
				),
			),
		)
	);
}
add_action( 'fusion_builder_before_init', 'fusion_element_images' );

/**
 * Map shortcode to Fusion Builder.
 */
function fusion_element_fusion_image() {
	fusion_builder_map(
		array(
			'name'              => esc_attr__( 'Image', 'fusion-builder' ),
			'description'       => esc_attr__( 'Enter some content for this textblock.', 'fusion-builder' ),
			'shortcode'         => 'fusion_image',
			'hide_from_builder' => true,
			'params'            => array(
				array(
					'type'        => 'upload',
					'heading'     => esc_attr__( 'Image', 'fusion-builder' ),
					'description' => esc_attr__( 'Upload an image to display.', 'fusion-builder' ),
					'param_name'  => 'image',
					'value'       => '',
				),
				array(
					'type'        => 'textfield',
					'heading'     => esc_attr__( 'Image ID', 'fusion-builder' ),
					'description' => esc_attr__( 'Image ID from Media Library.', 'fusion-builder' ),
					'param_name'  => 'image_id',
					'value'       => '',
					'hidden'      => true,
				),
				array(
					'type'        => 'link_selector',
					'heading'     => esc_attr__( 'Image Link', 'fusion-builder' ),
					'description' => esc_attr__( 'Add the url the image should link to. If lightbox option is enabled, you can also use this to open a different image in the lightbox.', 'fusion-builder' ),
					'param_name'  => 'link',
					'value'       => '',
				),
				array(
					'type'        => 'radio_button_set',
					'heading'     => esc_attr__( 'Link Target', 'fusion-builder' ),
					'description' => __( '_self = open in same window <br />_blank = open in new window.', 'fusion-builder' ),
					'param_name'  => 'linktarget',
					'value'       => array(
						'_self'  => esc_attr__( '_self', 'fusion-builder' ),
						'_blank' => esc_attr__( '_blank', 'fusion-builder' ),
					),
					'default'     => '_self',
				),
				array(
					'type'        => 'textfield',
					'heading'     => esc_attr__( 'Image Alt Text', 'fusion-builder' ),
					'description' => esc_attr__( 'The alt attribute provides alternative information if an image cannot be viewed.', 'fusion-builder' ),
					'param_name'  => 'alt',
					'value'       => '',
				),
			),
		)
	);
}
add_action( 'fusion_builder_before_init', 'fusion_element_fusion_image' );
