<?php
/**
 * Setup the Posts Block Rest Calls
 *
 * @since   2.0.0
 * @package AFT Blocks
 */


/**
 * Class to setup new rest calls.
 */
if(!class_exists('Aft_Post_Rest_Controller')){
	class Aft_Post_Rest_Controller extends WP_REST_Controller {
		/**
		 * Type property name.
		 */
		const PROP_TYPE = 'type';

		/**
		 * Type property name.
		 */
		const PROP_TYPE_ARRAY = 'type_array';

		/**
		 * Query property name.
		 */
		const PROP_QUERY = 'query';
		/**
		 * Query property name.
		 */
		const PROP_MULTIPLE = 'multiple';

		/**
		 * Query property name.
		 */
		const PROP_ORDER_BY = 'order_by';

		/**
		 * Query property name.
		 */
		const PROP_ORDER = 'order';

		/**
		 * Query property name.
		 */
		const PROP_ALLOW_STICKY = 'allow_sticky';

		/**
		 * Query property name.
		 */
		const PROP_OFFSET = 'offset';

		/**
		 * Query property name.
		 */
		const PROP_TAX = 'tax';

		/**
		 * Query property name.
		 */
		const PROP_EXCLUDE = 'exclude';

		/**
		 * Query property name.
		 */
		const PROP_CUSTOM_TAX = 'custom_tax';
		/**
		 * Query property name.
		 */
		const PROP_TAGS = 'tags';
		/**
		 * Query property name.
		 */
		const PROP_CATEGORY = 'category';

		/**
		 * Query property name.
		 */
		const PROP_TAX_TYPE = 'tax_type';

		/**
		 * Search property name.
		 */
		const PROP_SEARCH = 'search';

		/**
		 * Include property name.
		 */
		const PROP_INCLUDE = 'include';

		/**
		 * Per page property name.
		 */
		const PROP_PER_PAGE = 'per_page';

		/**
		 * Per page property name.
		 */
		const PROP_POST_ID = 'post_id';

		/**
		 * Page property name.
		 */
		const PROP_PAGE = 'page';

		/**
		 * Constructor.
		 */
		public function __construct() {
			$this->namespace = 'aft/v1';
			$this->query_base = 'post-query';
		}

		/**
		 * Registers the routes for the objects of the controller.
		 *
		 * @see register_rest_route()
		 */
		public function register_routes() {
			
			register_rest_route(
				$this->namespace,
				'/' . $this->query_base,
				array(
					array(
						'methods'             => WP_REST_Server::READABLE,
						'callback'            => array( $this, 'get_query_items' ),
						'permission_callback' => array( $this, 'get_items_permission_check' ),
						'args'                => $this->get_query_params(),
					),
				)
			);
		}
		public function get_items_permission_check( $request ) {
			return current_user_can( 'edit_posts' );
		}
		public function get_query_items( $request ) {
			
			$prop_type      = $request->get_param( self::PROP_TYPE );
			$query_type     = $request->get_param( self::PROP_QUERY );
			$tax_type       = $request->get_param( self::PROP_TAX_TYPE );
			
			$categories     = ( $request->get_param( self::PROP_CATEGORY ) ? wp_parse_list( $request->get_param( self::PROP_CATEGORY ) ) : array() );
			$tags = ( $request->get_param( self::PROP_TAGS ) ? wp_parse_list( $request->get_param( self::PROP_TAGS ) ) : array() );
			if ( empty( $query_type ) ) {
				return array();
			}

			$query_args = array(
				'post_type' => $prop_type,
			);
			if ( 'individual' === $query_type ) {
				$query_args['post__in']            = $request->get_param( self::PROP_INCLUDE );
				$query_args['orderby']             = 'post__in';
				$query_args['posts_per_page']      = -1;
				$query_args['ignore_sticky_posts'] = 1;
			} else {
				$query_args['posts_per_page']      = $request->get_param( self::PROP_PER_PAGE );
				$query_args['tax_query']           = array();
				$query_args['orderby']             = $request->get_param( self::PROP_ORDER_BY );
				$query_args['order']               = $request->get_param( self::PROP_ORDER );
				$query_args['offset']              = $request->get_param( self::PROP_OFFSET );
				
				$query_args['post_status']         = 'publish';
				$query_args['ignore_sticky_posts'] = $request->get_param( self::PROP_ALLOW_STICKY );
				$current_post_id                   = $request->get_param( self::PROP_POST_ID );
				if ( ! empty( $current_post_id ) ) {
					$query_args['post__not_in']        = array( $current_post_id );
				}
				if ( 'post' !== $prop_type || $request->get_param( self::PROP_CUSTOM_TAX ) ) {
					if ( $tax_type ) {
						if(!empty($categories)){
							$query_args['tax_query'][] = array(
								'taxonomy' => ( isset( $tax_type ) ) ? $tax_type : 'category',
								'field'    => 'id',
								'terms'    => (isset($categories))?$categories:'',
								'operator' => ( isset( $exclude ) && 'exclude' === $exclude ? 'NOT IN' : 'IN' ),
							);
						}
					}
				} else {
					$tags = ( $request->get_param( self::PROP_TAGS ) ? wp_parse_list( $request->get_param( self::PROP_TAGS ) ) : array() );
					
						$query_args['category__in'] = $categories;
						$query_args['tag__in']      = $tags;
					
				}
			}
			$query = new WP_Query( $query_args );
			$posts = array();

			foreach ( $query->posts as $post ) {
				$posts[] = $this->prepare_query_item_for_response( $post, $request,$tax_type );
			}

			return rest_ensure_response( $posts );
		}

		public function prepare_query_item_for_response( $post, $request,$tax_type ) {
			$excerpt = $this->blockspare_api_excerpt($post,$length=15);
			$new_excerpt = apply_filters( 'the_excerpt', $excerpt );
			$data = array(
				'id' => $post->ID,
				'date' => $this->prepare_date_response( $post->post_date_gmt, $post->post_date ),
				'date_gmt' => $this->prepare_date_response( $post->post_date_gmt ),
				'modified' => $this->prepare_date_response( $post->post_modified_gmt, $post->post_modified ),
				'modified_gmt' => $this->prepare_date_response( $post->post_modified_gmt ),
				'title' => array(
					'raw'      => $post->post_title,
					'rendered' => get_the_title( $post->ID ),
				),
				'excerpt' => array(
					'raw'      => $post->post_excerpt,
					'rendered' => get_the_excerpt( $post->ID ),
				),
				'data_content'=>wp_kses_post($excerpt),
				'type' => $post->post_type,
				'slug' => $post->post_name,
				'status' => $post->post_status,
				'link' => get_permalink( $post->ID ),
				'author' => absint( $post->post_author ),
				'display_name'=> get_the_author_meta('display_name', $object['author']),
				'author_link'=>get_author_posts_url($object['author']),
				'featured_media' => get_post_thumbnail_id( $post->ID ),
			);

			$attachment_id = get_post_thumbnail_id( $post->ID );
			
				$image= wp_get_attachment_image_src(
					get_post_thumbnail_id( $post ),
					'full',
					false
				);
				$sizes = get_intermediate_image_sizes();
				
				$imageSizes = array(
					'full' => is_array($image) ? $image : '',
				);
				
				foreach ($sizes as $size) {
					$imageSizes[$size] = is_array($image) ? wp_get_attachment_image_src($attachment_id, $size, false) : '';
				}

				$data['featured_image_src_large'] = $imageSizes;
			
			//$author_data = array();
			if ( post_type_supports( $post->post_type, 'author' ) ) {
				$blockspare = new BlocksapreMultiAuthorForBackend();
				$data['author_info'] = $blockspare->blockspare_by_author($post);
			}
			if ( 'post' != $post->post_type || 'comments' != $post->post_type  || 'author' != $post->post_type ) {
			$blockspare = new BlocksapreMultiAuthorForBackend();
			
			$data['author_info'] = $blockspare->blockspare_by_author($post);
		
			}
			//$data['author_info'] = $author_data;
			if ( post_type_supports( $post->post_type, 'comments' ) ) {
				$comments_count = wp_count_comments( $post->ID );
				$data['comment_count'] = $comments_count->total_comments;
			}
			if ( 'post' === $post->post_type ) {
				$data['category_info'] = get_the_category( $post->ID );
				$data['tag_info']      = get_the_tags( $post->ID );
			}
			$taxonomies = get_object_taxonomies( $post->post_type, 'objects' );
			$taxs = array();
			$term_items = array();
			foreach ( $taxonomies as $term_slug => $term ) {
				if ( ! $term->public || ! $term->show_ui ) {
					continue;
				}
				$terms = get_the_terms( $post->ID, $term_slug );
				
				if ( ! empty( $terms ) ) {
					foreach ( $terms as $term_key => $term_item ) {
						$term_items[] = array(
							'value' => $term_item->term_id,
							'label' => $term_item->name,
						);
					}
					
				}
			}
			
			$data['taxonomy_info'] = json_encode($term_items);
			
			return $data;
		}

		protected function blockspare_api_excerpt($post,$length=''){
    
			$excerpt = get_post_field(
				'post_excerpt',
				$post->post_id,
				'display'
			);


			preg_replace( '~^(\s*(?:&nbsp;)?)*~i', '', $excerpt );
			
			
				if ( empty( $excerpt ) ) {
					
					$excerpt = preg_replace(
						array(
							'/\<figcaption>.*\<\/figcaption>/',
							'/\[caption.*\[\/caption\]/',
							'`[[^]]*]`'
						),
						'',
						$post->post_content
					);
				}
				
			
					// Trim the excerpt if necessary.
				if ( isset( $length ) ) {
					$excerpt = wp_trim_words(
						$excerpt,
						$length
					);
				}
		
				return $excerpt;
		}

		protected function prepare_date_response( $date_gmt, $date = null ) {
			// Use the date if passed.
			if ( isset( $date ) ) {
				return mysql2date( 'Y-m-d\TH:i:s', $date, false );
			}

			// Return null if $date_gmt is empty/zeros.
			if ( '0000-00-00 00:00:00' === $date_gmt ) {
				return null;
			}

			// Return the formatted datetime.
			return mysql2date( 'Y-m-d\TH:i:s', $date_gmt, false );
		}


		public function get_query_params() {
			$query_params  = parent::get_collection_params();

			$query_params[ self::PROP_TYPE ] = array(
				'description' => __( 'Limit results to items of a specific post type.', 'blockspare' ),
				'type'        => 'string',
				'sanitize_callback' => array( $this, 'sanitize_post_type_string' ),
				'validate_callback' => array( $this, 'validate_post_type_string' ),
			);
		
			$query_params[ self::PROP_INCLUDE ] = array(
				'description' => __( 'Include posts by ID.', 'blockspare' ),
				'type'        => 'array',
				'validate_callback' => array( $this, 'validate_post_ids' ),
				'sanitize_callback' => array( $this, 'sanitize_post_ids' ),
			);
			$query_params[ self::PROP_PER_PAGE ] = array(
				'description' => __( 'Number of results to return.', 'blockspare' ),
				'type'        => 'number',
				'sanitize_callback' => array( $this, 'sanitize_post_perpage' ),
				'default' => 25,
			);
			$query_params[ self::PROP_QUERY ] = array(
				'description' => __( 'Define Type of Query.', 'blockspare' ),
				'type'        => 'string',
			);
			$query_params[ self::PROP_ORDER ] = array(
				'description' => __( 'Define Query Order.', 'blockspare' ),
				'type'        => 'string',
			);
			$query_params[ self::PROP_ORDER_BY ] = array(
				'description' => __( 'Define Query Order By.', 'blockspare' ),
				'type'        => 'string',
			);
			$query_params[ self::PROP_ALLOW_STICKY ] = array(
				'description'       => __( 'Allow Sticky in Query.', 'blockspare' ),
				'type'              => 'boolean',
				'sanitize_callback' => array( $this, 'sanitize_allow_sticky' ),
			);
			$query_params[ self::PROP_EXCLUDE ] = array(
				'description' => __( 'Exclude Category.', 'blockspare' ),
				'type'        => 'string',
			);
			$query_params[ self::PROP_OFFSET ] = array(
				'description' => __( 'Number of items to offset in query.', 'blockspare' ),
				'type'        => 'number',
				'sanitize_callback' => array( $this, 'sanitize_results_page_number' ),
				'default' => 0,
			);
			$query_params[ self::PROP_POST_ID ] = array(
				'description' => __( 'The Current Post ID.', 'blockspare' ),
				'type'        => 'number',
			);
			$query_params[ self::PROP_CUSTOM_TAX ] = array(
				'description' => __( 'Check if using a custom Taxonomy', 'blockspare' ),
				'type'              => 'boolean',
				'sanitize_callback' => array( $this, 'sanitize_allow_sticky' ),
			);
			$query_params[ self::PROP_TAX_TYPE ] = array(
				'description' => __( 'Define Query Order By.', 'blockspare' ),
				'type'        => 'string',
			);
			$query_params[ self::PROP_CATEGORY ] = array(
				'description' => __( 'Include posts category.', 'blockspare' ),
				'type'              => 'string',
				'sanitize_callback' => 'wp_parse_id_list',
			);
			$query_params[ self::PROP_TAGS ] = array(
				'description' => __( 'Include posts tags.', 'blockspare' ),
				'type'              => 'string',
				'sanitize_callback' => 'wp_parse_id_list',
			);
			return $query_params;
		}

		public function sanitize_post_ids( $ids ) {
			return array_map( 'absint', $ids );
		}
		public function validate_post_ids( $ids ) {
			return count( $ids ) > 0;
		}
		public function sanitize_post_perpage( $val ) {
			return min( absint( $val ), 100 );
		}
		public function sanitize_allow_sticky( $val ) {
			return $val ? 0 : 1;
		}
		public function sanitize_results_page_number( $val ) {
			return absint( $val );
		}
		public function validate_post_type_string( $value ) {
			$allowed_types = $this->get_allowed_post_types();
			return in_array( $value, $allowed_types );
		}

		public function sanitize_post_type_string( $post_type, $request ) {
			return sanitize_text_field( $post_type );
		}

		public function get_allowed_post_types() {
			$allowed_types = array_values(
				get_post_types(
					array(
						'show_in_rest'       => true,
						'public'             => true,
					)
				)
			);

			$key = array_search( 'attachment', $allowed_types, true );

			if ( false !== $key ) {
				unset( $allowed_types[ $key ] );
			}

			/**
			 * Filter the allowed post types.
			 *
			 * Note that if you allow this for posts that are not otherwise public,
			 * this data will be accessible using this endpoint for any logged in user with the edit_post capability.
			 */
			return apply_filters( 'aft_blocks_allowed_post_types', $allowed_types );
		}

	}
}