<?php

/**

 * Reusable blocks REST API: WP_REST_Blocks_Controller class

 *

 * @package WordPress

 * @subpackage REST_API

 * @since 5.0.0

 */

/**

 * Controller which provides a REST endpoint for the editor to read, create,

 * edit and delete reusable blocks. Blocks are stored as posts with the wp_block

 * post type.

 *

 * @since 5.0.0

 *

 * @see WP_REST_Posts_Controller

 * @see WP_REST_Controller

 */

class WP_REST_Blocks_Controller extends WP_REST_Posts_Controller {

	/**

	 * Checks if a block can be read.

	 *

	 * @since 5.0.0

	 *

	 * @return bool Whether the block can be read.

	 */

	public function check_read_permission( $post ) {

			return false;

		}

		return parent::check_read_permission( $post );

	}

	/**

	 * Filters a response based on the context defined in the schema.

	 *

	 * @since 5.0.0

	 *

	 * @param array  $data    Response data to fiter.

	 * @param string $context Context defined in the schema.

	 * @return array Filtered response.

	 */

	public function filter_response_by_context( $data, $context ) {

		$data = parent::filter_response_by_context( $data, $context );

		/*

		 * Remove `title.rendered` and `content.rendered` from the response. It

		 * doesn't make sense for a reusable block to have rendered content on its

		 * own, since rendering a block requires it to be inside a post or a page.

		 */

		unset( $data['title']['rendered'] );

		unset( $data['content']['rendered'] );

		return $data;

	}

	/**

	 * Retrieves the block's schema, conforming to JSON Schema.

	 *

	 * @since 5.0.0

	 *

	 * @return array Item schema data.

	 */

	public function get_item_schema() {

		$schema = parent::get_item_schema();

		/*

		 * Allow all contexts to access `title.raw` and `content.raw`. Clients always

		 * need the raw markup of a reusable block to do anything useful, e.g. parse

		 * it or display it in an editor.

		 */

		$schema['properties']['title']['properties']['raw']['context']   = array( 'view', 'edit' );

		$schema['properties']['content']['properties']['raw']['context'] = array( 'view', 'edit' );

		/*

		 * Remove `title.rendered` and `content.rendered` from the schema. It doesn’t

		 * make sense for a reusable block to have rendered content on its own, since

		 * rendering a block requires it to be inside a post or a page.

		 */

		unset( $schema['properties']['title']['properties']['rendered'] );

		unset( $schema['properties']['content']['properties']['rendered'] );

		return $schema;

	}

}