<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
/**
 * Update post endpoint v1.1
 *
 * Endpoints:
 * Create a post:  /sites/%s/posts/new
 * Update a post:  /sites/%s/posts/%d
 * Delete a post:  /sites/%s/posts/%d/delete
 * Restore a post: /sites/%s/posts/%d/restore
 */

new WPCOM_JSON_API_Update_Post_v1_1_Endpoint(
	array(
		'description'          => 'Create a post.',
		'group'                => 'posts',
		'stat'                 => 'posts:new',
		'new_version'          => '1.2',
		'min_version'          => '1.1',
		'max_version'          => '1.1',
		'method'               => 'POST',
		'path'                 => '/sites/%s/posts/new',
		'path_labels'          => array(
			'$site' => '(int|string) Site ID or domain',
		),

		'request_format'       => array(
			// explicitly document all input.
			'date'              => "(ISO 8601 datetime) The post's creation time.",
			'title'             => '(HTML) The post title.',
			'content'           => '(HTML) The post content.',
			'excerpt'           => '(HTML) An optional post excerpt.',
			'slug'              => '(string) The name (slug) for the post, used in URLs.',
			'author'            => '(string) The username or ID for the user to assign the post to.',
			'publicize'         => '(array|bool) True or false if the post be shared to external services. An array of services if we only want to share to a select few. Defaults to true.',
			'publicize_message' => '(string) Custom message to be shared to external services.',
			'status'            => array(
				'publish'    => 'Publish the post.',
				'private'    => 'Privately publish the post.',
				'draft'      => 'Save the post as a draft.',
				'pending'    => 'Mark the post as pending editorial approval.',
				'future'     => 'Schedule the post (alias for publish; you must also set a future date).',
				'auto-draft' => 'Save a placeholder for a newly created post, with no content.',
			),
			'sticky'            => array(
				'false' => 'Post is not marked as sticky.',
				'true'  => 'Stick the post to the front page.',
			),
			'password'          => '(string) The plaintext password protecting the post, or, more likely, the empty string if the post is not password protected.',
			'parent'            => "(int) The post ID of the new post's parent.",
			'type'              => "(string) The post type. Defaults to 'post'. Post types besides post and page need to be whitelisted using the <code>rest_api_allowed_post_types</code> filter.",
			'terms'             => '(object) Mapping of taxonomy to comma-separated list or array of terms (name or id)',
			'categories'        => '(array|string) Comma-separated list or array of categories (name or id)',
			'tags'              => '(array|string) Comma-separated list or array of tags (name or id)',
			'format'            => array_merge( array( 'default' => 'Use default post format' ), get_post_format_strings() ),
			'featured_image'    => '(string) The post ID of an existing attachment to set as the featured image. Pass an empty string to delete the existing image.',
			'media'             => '(media) An array of files to attach to the post. To upload media, the entire request should be multipart/form-data encoded. Multiple media items will be displayed in a gallery. Accepts  jpg, jpeg, png, gif, pdf, doc, ppt, odt, pptx, docx, pps, ppsx, xls, xlsx, key. Audio and Video may also be available. See <code>allowed_file_types</code> in the options response of the site endpoint. Errors produced by media uploads, if any, will be in `media_errors` in the response. <br /><br /><strong>Example</strong>:<br />' .
							"<code>curl \<br />--form 'title=Image Post' \<br />--form 'media[0]=@/path/to/file.jpg' \<br />--form 'media_attrs[0][caption]=My Great Photo' \<br />-H 'Authorization: BEARER your-token' \<br />'https://public-api.wordpress.com/rest/v1/sites/123/posts/new'</code>",
			'media_urls'        => '(array) An array of URLs for images to attach to a post. Sideloads the media in for a post. Errors produced by media sideloading, if any, will be in `media_errors` in the response.',
			'media_attrs'       => '(array) An array of attributes (`title`, `description` and `caption`) are supported to assign to the media uploaded via the `media` or `media_urls` properties. You must use a numeric index for the keys of `media_attrs` which follow the same sequence as `media` and `media_urls`. <br /><br /><strong>Example</strong>:<br />' .
							"<code>curl \<br />--form 'title=Gallery Post' \<br />--form 'media[]=@/path/to/file1.jpg' \<br />--form 'media_urls[]=http://exapmple.com/file2.jpg' \<br /> \<br />--form 'media_attrs[0][caption]=This will be the caption for file1.jpg' \<br />--form 'media_attrs[1][title]=This will be the title for file2.jpg' \<br />-H 'Authorization: BEARER your-token' \<br />'https://public-api.wordpress.com/rest/v1/sites/123/posts/new'</code>",
			'metadata'          => '(array) Array of metadata objects containing the following properties: `key` (metadata key), `id` (meta ID), `previous_value` (if set, the action will only occur for the provided previous value), `value` (the new value to set the meta to), `operation` (the operation to perform: `update` or `add`; defaults to `update`). All unprotected meta keys are available by default for read requests. Both unprotected and protected meta keys are avaiable for authenticated requests with proper capabilities. Protected meta keys can be made available with the <code>rest_api_allowed_public_metadata</code> filter.',
			'discussion'        => '(object) A hash containing one or more of the following boolean values, which default to the blog\'s discussion preferences: `comments_open`, `pings_open`',
			'likes_enabled'     => "(bool) Should the post be open to likes? Defaults to the blog's preference.",
			'sharing_enabled'   => '(bool) Should sharing buttons show on this post? Defaults to true.',
			'menu_order'        => '(int) (Pages Only) the order pages should appear in. Use 0 to maintain alphabetical order.',
			'page_template'     => '(string) (Pages Only) The page template this page should use.',
		),

		'example_request'      => 'https://public-api.wordpress.com/rest/v1.1/sites/82974409/posts/new/',

		'example_request_data' => array(
			'headers' => array(
				'authorization' => 'Bearer YOUR_API_TOKEN',
			),

			'body'    => array(
				'title'      => 'Hello World',
				'content'    => 'Hello. I am a test post. I was created by the API',
				'tags'       => 'tests',
				'categories' => 'API',
			),
		),
	)
);

new WPCOM_JSON_API_Update_Post_v1_1_Endpoint(
	array(
		'description'          => 'Edit a post.',
		'group'                => 'posts',
		'stat'                 => 'posts:1:POST',
		'new_version'          => '1.2',
		'min_version'          => '1.1',
		'max_version'          => '1.1',
		'method'               => 'POST',
		'path'                 => '/sites/%s/posts/%d',
		'path_labels'          => array(
			'$site'    => '(int|string) Site ID or domain',
			'$post_ID' => '(int) The post ID',
		),

		'request_format'       => array(
			'date'              => "(ISO 8601 datetime) The post's creation time.",
			'title'             => '(HTML) The post title.',
			'content'           => '(HTML) The post content.',
			'excerpt'           => '(HTML) An optional post excerpt.',
			'slug'              => '(string) The name (slug) for the post, used in URLs.',
			'author'            => '(string) The username or ID for the user to assign the post to.',
			'publicize'         => '(array|bool) True or false if the post be shared to external services. An array of services if we only want to share to a select few. Defaults to true.',
			'publicize_message' => '(string) Custom message to be shared to external services.',
			'status'            => array(
				'publish' => 'Publish the post.',
				'private' => 'Privately publish the post.',
				'draft'   => 'Save the post as a draft.',
				'future'  => 'Schedule the post (alias for publish; you must also set a future date).',
				'pending' => 'Mark the post as pending editorial approval.',
				'trash'   => 'Set the post as trashed.',
			),
			'sticky'            => array(
				'false' => 'Post is not marked as sticky.',
				'true'  => 'Stick the post to the front page.',
			),
			'password'          => '(string) The plaintext password protecting the post, or, more likely, the empty string if the post is not password protected.',
			'parent'            => "(int) The post ID of the new post's parent.",
			'terms'             => '(object) Mapping of taxonomy to comma-separated list or array of terms (name or id)',
			'categories'        => '(array|string) Comma-separated list or array of categories (name or id)',
			'tags'              => '(array|string) Comma-separated list or array of tags (name or id)',
			'format'            => array_merge( array( 'default' => 'Use default post format' ), get_post_format_strings() ),
			'discussion'        => '(object) A hash containing one or more of the following boolean values, which default to the blog\'s discussion preferences: `comments_open`, `pings_open`',
			'likes_enabled'     => '(bool) Should the post be open to likes?',
			'menu_order'        => '(int) (Pages only) the order pages should appear in. Use 0 to maintain alphabetical order.',
			'page_template'     => '(string) (Pages Only) The page template this page should use.',
			'sharing_enabled'   => '(bool) Should sharing buttons show on this post?',
			'featured_image'    => '(string) The post ID of an existing attachment to set as the featured image. Pass an empty string to delete the existing image.',
			'media'             => '(media) An array of files to attach to the post. To upload media, the entire request should be multipart/form-data encoded. Multiple media items will be displayed in a gallery. Accepts  jpg, jpeg, png, gif, pdf, doc, ppt, odt, pptx, docx, pps, ppsx, xls, xlsx, key. Audio and Video may also be available. See <code>allowed_file_types</code> in the options resposne of the site endpoint. <br /><br /><strong>Example</strong>:<br />' .
							"<code>curl \<br />--form 'title=Image' \<br />--form 'media[]=@/path/to/file.jpg' \<br />-H 'Authorization: BEARER your-token' \<br />'https://public-api.wordpress.com/rest/v1/sites/123/posts/new'</code>",
			'media_urls'        => '(array) An array of URLs for images to attach to a post. Sideloads the media in for a post.',
			'metadata'          => '(array) Array of metadata objects containing the following properties: `key` (metadata key), `id` (meta ID), `previous_value` (if set, the action will only occur for the provided previous value), `value` (the new value to set the meta to), `operation` (the operation to perform: `update` or `add`; defaults to `update`). All unprotected meta keys are available by default for read requests. Both unprotected and protected meta keys are available for authenticated requests with proper capabilities. Protected meta keys can be made available with the <code>rest_api_allowed_public_metadata</code> filter.',
		),

		'example_request'      => 'https://public-api.wordpress.com/rest/v1.1/sites/82974409/posts/881',

		'example_request_data' => array(
			'headers' => array(
				'authorization' => 'Bearer YOUR_API_TOKEN',
			),

			'body'    => array(
				'title'      => 'Hello World (Again)',
				'content'    => 'Hello. I am an edited post. I was edited by the API',
				'tags'       => 'tests',
				'categories' => 'API',
			),
		),
	)
);

new WPCOM_JSON_API_Update_Post_v1_1_Endpoint(
	array(
		'description'          => 'Delete a post. Note: If the trash is enabled, this request will send the post to the trash. A second request will permanently delete the post.',
		'group'                => 'posts',
		'stat'                 => 'posts:1:delete',
		'min_version'          => '1.1',
		'max_version'          => '1.1',
		'method'               => 'POST',
		'path'                 => '/sites/%s/posts/%d/delete',
		'path_labels'          => array(
			'$site'    => '(int|string) Site ID or domain',
			'$post_ID' => '(int) The post ID',
		),

		'example_request'      => 'https://public-api.wordpress.com/rest/v1.1/sites/82974409/posts/$post_ID/delete/',

		'example_request_data' => array(
			'headers' => array(
				'authorization' => 'Bearer YOUR_API_TOKEN',
			),
		),
	)
);

new WPCOM_JSON_API_Update_Post_v1_1_Endpoint(
	array(
		'description'          => 'Restore a post or page from the trash to its previous status.',
		'group'                => 'posts',
		'stat'                 => 'posts:1:restore',
		'min_version'          => '1.1',
		'max_version'          => '1.1',
		'method'               => 'POST',
		'path'                 => '/sites/%s/posts/%d/restore',
		'path_labels'          => array(
			'$site'    => '(int|string) Site ID or domain',
			'$post_ID' => '(int) The post ID',
		),

		'example_request'      => 'https://public-api.wordpress.com/rest/v1.1/sites/82974409/posts/$post_ID/restore/',

		'example_request_data' => array(
			'headers' => array(
				'authorization' => 'Bearer YOUR_API_TOKEN',
			),
		),
	)
);

// phpcs:disable PEAR.NamingConventions.ValidClassName.Invalid
/**
 * Update post v1.1 endpoint class.
 */
class WPCOM_JSON_API_Update_Post_v1_1_Endpoint extends WPCOM_JSON_API_Post_v1_1_Endpoint {
	/**
	 * WPCOM_JSON_API_Update_Post_v1_1_Endpoint constructor.
	 *
	 * @param array $args Args.
	 */
	public function __construct( $args ) {
		parent::__construct( $args );
		if ( $this->api->ends_with( $this->path, '/delete' ) ) {
			$this->post_object_format['status']['deleted'] = 'The post has been deleted permanently.';
		}
	}

	/**
	 * Update post API v1.1 callback.
	 *
	 * /sites/%s/posts/new        -> $blog_id
	 * /sites/%s/posts/%d         -> $blog_id, $post_id
	 * /sites/%s/posts/%d/delete  -> $blog_id, $post_id
	 * /sites/%s/posts/%d/restore -> $blog_id, $post_id
	 *
	 * @param string $path API path.
	 * @param int    $blog_id Blog ID.
	 * @param int    $post_id Post ID.
	 *
	 * @return array|bool|WP_Error
	 */
	public function callback( $path = '', $blog_id = 0, $post_id = 0 ) {
		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
		if ( is_wp_error( $blog_id ) ) {
			return $blog_id;
		}

		if ( $this->api->ends_with( $path, '/delete' ) ) {
			return $this->delete_post( $path, $blog_id, $post_id );
		} elseif ( $this->api->ends_with( $path, '/restore' ) ) {
			return $this->restore_post( $path, $blog_id, $post_id );
		} else {
			return $this->write_post( $path, $blog_id, $post_id );
		}
	}

	/**
	 * Create or update a post.
	 *
	 * /sites/%s/posts/new -> $blog_id
	 * /sites/%s/posts/%d  -> $blog_id, $post_id
	 *
	 * @param string $path API path.
	 * @param int    $blog_id Blog ID.
	 * @param int    $post_id Post ID.
	 */
	public function write_post( $path, $blog_id, $post_id ) {
		$delete_featured_image = null;
		$media_results         = array();
		$post                  = null;
		global $wpdb;

		$new  = $this->api->ends_with( $path, '/new' );
		$args = $this->query_args();

		// unhook publicize, it's hooked again later -- without this, skipping services is impossible.
		if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
			remove_action( 'save_post', array( $GLOBALS['publicize_ui']->publicize, 'async_publicize_post' ), 100, 2 );
			add_action( 'rest_api_inserted_post', array( $GLOBALS['publicize_ui']->publicize, 'async_publicize_post' ) );

			if ( $this->should_load_theme_functions( $post_id ) ) {
				$this->load_theme_functions();
			}
		}

		if ( $new ) {
			$input = $this->input( true );

			// 'future' is an alias for 'publish' for now
			if ( 'future' === $input['status'] ) {
				$input['status'] = 'publish';
			}

			// default to post.
			if ( empty( $input['type'] ) ) {
				$input['type'] = 'post';
			}

			if ( 'revision' === $input['type'] ) {
				if ( ! isset( $input['parent'] ) ) {
					return new WP_Error( 'invalid_input', 'Invalid request input', 400 );
				}
				$input['status'] = 'inherit'; // force inherit for revision type.
				$input['slug']   = $input['parent'] . '-autosave-v1';
			} elseif ( ! isset( $input['title'] ) && ! isset( $input['content'] ) && ! isset( $input['excerpt'] ) ) {
				return new WP_Error( 'invalid_input', 'Invalid request input', 400 );
			}

			$post_type = get_post_type_object( $input['type'] );

			if ( ! $this->is_post_type_allowed( $input['type'] ) ) {
				return new WP_Error( 'unknown_post_type', 'Unknown post type', 404 );
			}

			if ( ! empty( $input['author'] ) ) {
				$author_id = $this->parse_and_set_author( $input['author'], $input['type'] );
				unset( $input['author'] );
				if ( is_wp_error( $author_id ) ) {
					return $author_id;
				}
			}

			if ( 'publish' === $input['status'] ) {
				if ( ! current_user_can( $post_type->cap->publish_posts ) ) {
					if ( current_user_can( $post_type->cap->edit_posts ) ) {
						$input['status'] = 'pending';
					} else {
						return new WP_Error( 'unauthorized', 'User cannot publish posts', 403 );
					}
				}
			} elseif ( ! current_user_can( $post_type->cap->edit_posts ) ) {
				return new WP_Error( 'unauthorized', 'User cannot edit posts', 403 );
			}
		} else {
			$input = $this->input( false );

			if ( ! is_array( $input ) || ! $input ) {
				return new WP_Error( 'invalid_input', 'Invalid request input', 400 );
			}

			$post = get_post( $post_id );
			if ( ! $post || is_wp_error( $post ) ) {
				return new WP_Error( 'unknown_post', 'Unknown post', 404 );
			}

			if ( isset( $input['status'] ) && 'trash' === $input['status'] && ! current_user_can( 'delete_post', $post_id ) ) {
				return new WP_Error( 'unauthorized', 'User cannot delete post', 403 );
			}

			// 'future' is an alias for 'publish' for now
			if ( isset( $input['status'] ) && 'future' === $input['status'] ) {
				$input['status'] = 'publish';
			}

			$_post_type = ( ! empty( $input['type'] ) ) ? $input['type'] : $post->post_type;
			$post_type  = get_post_type_object( $_post_type );

			if ( ! current_user_can( 'edit_post', $post->ID ) ) {
				return new WP_Error( 'unauthorized', 'User cannot edit post', 403 );
			}

			if ( ! empty( $input['author'] ) ) {
				$author_id = $this->parse_and_set_author( $input['author'], $_post_type );
				unset( $input['author'] );
				if ( is_wp_error( $author_id ) ) {
					return $author_id;
				}
			}

			if ( ( isset( $input['status'] ) && 'publish' === $input['status'] ) && 'publish' !== $post->post_status && ! current_user_can( 'publish_post', $post->ID ) ) {
				$input['status'] = 'pending';
			}
			$last_status = $post->post_status;
			$new_status  = isset( $input['status'] ) ? $input['status'] : $last_status;

			// Make sure that drafts get the current date when transitioning to publish if not supplied in the post.
			// Similarly, scheduled posts that are manually published before their scheduled date should have the date reset.
			$date_in_past         = ( strtotime( $post->post_date_gmt ) < time() );
			$reset_draft_date     = 'publish' === $new_status && 'draft' === $last_status && ! isset( $input['date_gmt'] ) && $date_in_past;
			$reset_scheduled_date = 'publish' === $new_status && 'future' === $last_status && ! isset( $input['date_gmt'] ) && ! $date_in_past;

			if ( $reset_draft_date || $reset_scheduled_date ) {
				$input['date_gmt'] = gmdate( 'Y-m-d H:i:s' );
			}

			// Untrash a post so that the proper hooks get called as well as the comments get untrashed.
			if ( $this->should_untrash_post( $last_status, $new_status, $post ) ) {
				$input = $this->untrash_post( $post, $input );
			}
		}

		if ( function_exists( 'wpcom_switch_to_blog_locale' ) ) {
			// fixes calypso-pre-oss #12476: respect blog locale when creating the post slug.
			wpcom_switch_to_blog_locale( $blog_id );
		}

		// If date was set, $this->input will set date_gmt, date still needs to be adjusted for the blog's offset.
		if ( isset( $input['date_gmt'] ) ) {
			$gmt_offset       = get_option( 'gmt_offset' );
			$time_with_offset = strtotime( $input['date_gmt'] ) + $gmt_offset * HOUR_IN_SECONDS;
			$input['date']    = gmdate( 'Y-m-d H:i:s', $time_with_offset );
		}

		if ( ! empty( $author_id ) && get_current_user_id() !== $author_id ) {
			if ( ! current_user_can( $post_type->cap->edit_others_posts ) ) {
				return new WP_Error( 'unauthorized', "User is not allowed to publish others' posts.", 403 );
			} elseif ( ! user_can( $author_id, $post_type->cap->edit_posts ) ) {
				return new WP_Error( 'unauthorized', 'Assigned author cannot publish post.', 403 );
			}
		}

		if ( ! is_post_type_hierarchical( $post_type->name ) && 'revision' !== $post_type->name ) {
			unset( $input['parent'] );
		}

		$input['terms'] = isset( $input['terms'] ) ? (array) $input['terms'] : array();

		// Convert comma-separated terms to array before attempting to
		// merge with hardcoded taxonomies.
		foreach ( $input['terms'] as $taxonomy => $terms ) {
			if ( is_string( $terms ) ) {
				$input['terms'][ $taxonomy ] = explode( ',', $terms );
			} elseif ( ! is_array( $terms ) ) {
				$input['terms'][ $taxonomy ] = array();
			}
		}

		// For each hard-coded taxonomy, merge into terms object.
		foreach ( array(
			'categories' => 'category',
			'tags'       => 'post_tag',
		) as $taxonomy_key => $taxonomy ) {
			if ( ! isset( $input[ $taxonomy_key ] ) ) {
				continue;
			}

			if ( ! isset( $input['terms'][ $taxonomy ] ) ) {
				$input['terms'][ $taxonomy ] = array();
			}

			$terms = $input[ $taxonomy_key ];
			if ( is_string( $terms ) ) {
				$terms = explode( ',', $terms );
			} elseif ( ! is_array( $terms ) ) {
				continue;
			}

			$input['terms'][ $taxonomy ] = array_merge(
				$input['terms'][ $taxonomy ],
				$terms
			);
		}

		$tax_input = array();

		foreach ( $input['terms'] as $taxonomy => $terms ) {
			$tax_input[ $taxonomy ] = array();
			$is_hierarchical        = is_taxonomy_hierarchical( $taxonomy );

			foreach ( $terms as $term ) {
				/**
				 * `curl --data 'terms[category][]=123'` should be interpreted as a category ID,
				 * not a category whose name is '123'.
				 *
				 * Consequence: To add a category/tag whose name is '123', the client must
				 * first look up its ID.
				 */
				$term = (string) $term; // ctype_digit compat.
				if ( ctype_digit( $term ) ) {
					$term = (int) $term;
				}

				$term_info = term_exists( $term, $taxonomy );

				if ( ! $term_info ) {
					// A term ID that doesn't already exist. Ignore it: we don't know what name to give it.
					if ( is_int( $term ) ) {
						continue;
					}
					// only add a new tag/cat if the user has access to.
					$tax = get_taxonomy( $taxonomy );

					// see https://core.trac.wordpress.org/ticket/26409 .
					if ( $is_hierarchical && ! current_user_can( $tax->cap->edit_terms ) ) {
						continue;
					} elseif ( ! current_user_can( $tax->cap->assign_terms ) ) {
						continue;
					}

					$term_info = wp_insert_term( $term, $taxonomy );
				}

				if ( ! is_wp_error( $term_info ) ) {
					if ( $is_hierarchical ) {
						// Hierarchical terms must be added by ID.
						$tax_input[ $taxonomy ][] = (int) $term_info['term_id'];
					} elseif ( is_int( $term ) ) { // Non-hierarchical terms must be added by name.
						$term                     = get_term( $term, $taxonomy );
						$tax_input[ $taxonomy ][] = $term->name;
					} else {
						$tax_input[ $taxonomy ][] = $term;
					}
				}
			}
		}

		if ( isset( $input['terms']['category'] ) && empty( $tax_input['category'] ) && 'revision' !== $post_type->name ) {
			$tax_input['category'][] = get_option( 'default_category' );
		}

		unset( $input['terms'], $input['tags'], $input['categories'] );

		$insert = array();

		if ( ! empty( $input['slug'] ) ) {
			$insert['post_name'] = $input['slug'];
			unset( $input['slug'] );
		}

		if ( isset( $input['discussion'] ) ) {
			$discussion = (array) $input['discussion'];
			foreach ( array( 'comment', 'ping' ) as $discussion_type ) {
				$discussion_open   = sprintf( '%ss_open', $discussion_type );
				$discussion_status = sprintf( '%s_status', $discussion_type );

				if ( isset( $discussion[ $discussion_open ] ) ) {
					$is_open                          = WPCOM_JSON_API::is_truthy( $discussion[ $discussion_open ] );
					$discussion[ $discussion_status ] = $is_open ? 'open' : 'closed';
				}

				if ( in_array( $discussion[ $discussion_status ], array( 'open', 'closed' ), true ) ) {
					$insert[ $discussion_status ] = $discussion[ $discussion_status ];
				}
			}
		}

		unset( $input['discussion'] );

		if ( isset( $input['menu_order'] ) ) {
			$insert['menu_order'] = $input['menu_order'];
			unset( $input['menu_order'] );
		}

		$publicize = isset( $input['publicize'] ) ? $input['publicize'] : null;
		unset( $input['publicize'] );

		$publicize_custom_message = isset( $input['publicize_message'] ) ? $input['publicize_message'] : null;
		unset( $input['publicize_message'] );

		if ( isset( $input['featured_image'] ) ) {
			$featured_image        = trim( $input['featured_image'] );
			$delete_featured_image = empty( $featured_image );
			unset( $input['featured_image'] );
		}

		$metadata = isset( $input['metadata'] ) ? $input['metadata'] : null;
		unset( $input['metadata'] );

		$likes = isset( $input['likes_enabled'] ) ? $input['likes_enabled'] : null;
		unset( $input['likes_enabled'] );

		$sharing = isset( $input['sharing_enabled'] ) ? $input['sharing_enabled'] : null;
		unset( $input['sharing_enabled'] );

		$sticky = isset( $input['sticky'] ) ? $input['sticky'] : null;
		unset( $input['sticky'] );

		foreach ( $input as $key => $value ) {
			$insert[ "post_$key" ] = $value;
		}

		if ( ! empty( $author_id ) ) {
			$insert['post_author'] = absint( $author_id );
		}

		if ( ! empty( $tax_input ) ) {
			$insert['tax_input'] = $tax_input;
		}

		$has_media        = ! empty( $input['media'] ) ? count( $input['media'] ) : false;
		$has_media_by_url = ! empty( $input['media_urls'] ) ? count( $input['media_urls'] ) : false;

		$media_id_string = '';
		if ( $has_media || $has_media_by_url ) {
			$media_files     = ! empty( $input['media'] ) ? $input['media'] : array();
			$media_urls      = ! empty( $input['media_urls'] ) ? $input['media_urls'] : array();
			$media_attrs     = ! empty( $input['media_attrs'] ) ? $input['media_attrs'] : array();
			$media_results   = $this->handle_media_creation_v1_1( $media_files, $media_urls, $media_attrs );
			$media_id_string = implode( ',', array_filter( array_map( 'absint', $media_results['media_ids'] ) ) );
		}

		if ( $new ) {
			if ( isset( $input['content'] ) && ! has_shortcode( $input['content'], 'gallery' ) && ( $has_media || $has_media_by_url ) ) {
				switch ( ( $has_media + $has_media_by_url ) ) {
					case 0:
						// No images - do nothing.
						break;
					case 1:
						// 1 image - make it big
						$input['content']       = sprintf(
							"[gallery size=full ids='%s' columns=1]\n\n",
							$media_id_string
						) . $input['content'];
						$insert['post_content'] = $input['content'];
						break;
					default:
						// Several images - 3 column gallery.
						$input['content']       = sprintf(
							"[gallery ids='%s']\n\n",
							$media_id_string
						) . $input['content'];
						$insert['post_content'] = $input['content'];
						break;
				}
			}

			$post_id = wp_insert_post( add_magic_quotes( $insert ), true );
		} else {
			$insert['ID'] = $post->ID;

			// wp_update_post ignores date unless edit_date is set
			// See: https://codex.wordpress.org/Function_Reference/wp_update_post#Scheduling_posts .
			// See: https://core.trac.wordpress.org/browser/tags/3.9.2/src/wp-includes/post.php#L3302 .
			if ( isset( $input['date_gmt'] ) || isset( $input['date'] ) ) {
				$insert['edit_date'] = true;
			}

			// this two-step process ensures any changes submitted along with status=trash get saved before trashing.
			if ( isset( $input['status'] ) && 'trash' === $input['status'] ) {
				// if we insert it with status='trash', it will get double-trashed, so insert it as a draft first.
				unset( $insert['status'] );
				$post_id = wp_update_post( (object) $insert );
				// now call wp_trash_post so post_meta gets set and any filters get called.
				wp_trash_post( $post_id );
			} else {
				$post_id = wp_update_post( (object) $insert );
			}
		}

		if ( ! $post_id || is_wp_error( $post_id ) ) {
			return $post_id;
		}

		// make sure this post actually exists and is not an error of some kind (ie, trying to load media in the posts endpoint).
		$post_check = $this->get_post_by( 'ID', $post_id, $args['context'] );
		if ( is_wp_error( $post_check ) ) {
			return $post_check;
		}

		if ( $media_id_string ) {
			// Yes - this is really how wp-admin does it.
			$wpdb->query(
				$wpdb->prepare(
					"UPDATE $wpdb->posts SET post_parent = %d WHERE post_type = 'attachment' AND ID IN ( $media_id_string )", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- IDs are filtered to absint above.
					$post_id
				)
			);
			foreach ( $media_results['media_ids'] as $media_id ) {
				clean_attachment_cache( $media_id );
			}
			clean_post_cache( $post_id );
		}

		// set page template for this post.
		if ( isset( $input['page_template'] ) && 'page' === $post_type->name ) {
			$page_template  = $input['page_template'];
			$page_templates = wp_get_theme()->get_page_templates( get_post( $post_id ) );
			if ( empty( $page_template ) || 'default' === $page_template || isset( $page_templates[ $page_template ] ) ) {
				update_post_meta( $post_id, '_wp_page_template', $page_template );
			}
		}

		// Set like status for the post.
		/** This filter is documented in modules/likes.php */
		$sitewide_likes_enabled = (bool) apply_filters( 'wpl_is_enabled_sitewide', ! get_option( 'disabled_likes' ) );
		if ( $new ) {
			if ( $sitewide_likes_enabled ) {
				if ( false === $likes ) {
					update_post_meta( $post_id, 'switch_like_status', 0 );
				} else {
					delete_post_meta( $post_id, 'switch_like_status' );
				}
			} elseif ( $likes ) {
				update_post_meta( $post_id, 'switch_like_status', 1 );
			} else {
				delete_post_meta( $post_id, 'switch_like_status' );
			}
		} elseif ( isset( $likes ) ) {
			if ( $sitewide_likes_enabled ) {
				if ( false === $likes ) {
					update_post_meta( $post_id, 'switch_like_status', 0 );
				} else {
					delete_post_meta( $post_id, 'switch_like_status' );
				}
			} elseif ( true === $likes ) {
				update_post_meta( $post_id, 'switch_like_status', 1 );
			} else {
				delete_post_meta( $post_id, 'switch_like_status' );
			}
		}

		// Set sharing status of the post.
		if ( $new ) {
			$sharing_enabled = isset( $sharing ) ? (bool) $sharing : true;
			if ( false === $sharing_enabled ) {
				update_post_meta( $post_id, 'sharing_disabled', 1 );
			}
		} elseif ( isset( $sharing ) && true === $sharing ) {
			delete_post_meta( $post_id, 'sharing_disabled' );
		} elseif ( isset( $sharing ) && false == $sharing ) { // phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual
			update_post_meta( $post_id, 'sharing_disabled', 1 );
		}

		if ( isset( $sticky ) ) {
			if ( true === $sticky ) {
				stick_post( $post_id );
			} else {
				unstick_post( $post_id );
			}
		}

		// WPCOM Specific (Jetpack's will get bumped elsewhere
		// Tracks how many posts are published and sets meta
		// so we can track some other cool stats (like likes & comments on posts published).
		if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
			if (
				( $new && 'publish' === $input['status'] )
				|| (
					! $new && isset( $last_status )
					&& 'publish' !== $last_status
					&& isset( $new_status )
					&& 'publish' === $new_status
				)
			) {
				/** This action is documented in modules/widgets/social-media-icons.php */
				do_action( 'jetpack_bump_stats_extras', 'api-insights-posts', $this->api->token_details['client_id'] );
				update_post_meta( $post_id, '_rest_api_published', 1 );
				update_post_meta( $post_id, '_rest_api_client_id', $this->api->token_details['client_id'] );
			}
		}

		// We ask the user/dev to pass Publicize services he/she wants activated for the post, but Publicize expects us
		// to instead flag the ones we don't want to be skipped. proceed with said logic.
		// Any posts coming from Path (client ID 25952) should also not publicize.
		if ( false === $publicize || ( isset( $this->api->token_details['client_id'] ) && 25952 === (int) $this->api->token_details['client_id'] ) ) {
			// No publicize at all, skip all by ID.
			foreach ( $GLOBALS['publicize_ui']->publicize->get_services( 'all' ) as $name => $service ) {
				delete_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_SKIP . $name );
				$service_connections = $GLOBALS['publicize_ui']->publicize->get_connections( $name );
				if ( ! $service_connections ) {
					continue;
				}
				foreach ( $service_connections as $service_connection ) {
					update_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_SKIP . $service_connection->unique_id, 1 );
				}
			}
		} elseif ( is_array( $publicize ) && ( $publicize !== array() ) ) {
			foreach ( $GLOBALS['publicize_ui']->publicize->get_services( 'all' ) as $name => $service ) {
				/*
				 * We support both indexed and associative arrays:
				 * * indexed are to pass entire services
				 * * associative are to pass specific connections per service
				 *
				 * We do support mixed arrays: mixed integer and string keys (see 3rd example below).
				 *
				 * EG: array( 'linkedin', 'facebook') will only publicize to those, ignoring the other available services
				 *      Form data: publicize[]=linkedin&publicize[]=facebook
				 * EG: array( 'linkedin' => '(int) $pub_conn_id_0, (int) $pub_conn_id_3', 'facebook' => (int) $pub_conn_id_7 ) will publicize to two LinkedIn accounts, and one Facebook connection, of potentially many.
				 *      Form data: publicize[linkedin]=$pub_conn_id_0,$pub_conn_id_3&publicize[facebook]=$pub_conn_id_7
				 * EG: array( 'linkedin', 'facebook' => '(int) $pub_conn_id_0, (int) $pub_conn_id_3' ) will publicize to all available LinkedIn accounts, but only 2 of potentially many Facebook connections
				 *      Form data: publicize[]=linkedin&publicize[facebook]=$pub_conn_id_0,$pub_conn_id_3
				 */

				// Delete any stale SKIP value for the service by name. We'll add it back by ID.
				delete_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_SKIP . $name );

				// Get the user's connections.
				$service_connections = $GLOBALS['publicize_ui']->publicize->get_connections( $name );

				// if the user doesn't have any connections for this service, move on.
				if ( ! $service_connections ) {
					continue;
				}

				if ( ! in_array( $name, $publicize, true ) && ! array_key_exists( $name, $publicize ) ) {
					// Skip the whole service by adding each connection ID.
					foreach ( $service_connections as $service_connection ) {
						update_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_SKIP . $service_connection->unique_id, 1 );
					}
				} elseif ( ! empty( $publicize[ $name ] ) ) {
					// Seems we're being asked to only push to [a] specific connection[s].
					// Explode the list on commas, which will also support a single passed ID.
					$requested_connections = explode( ',', ( preg_replace( '/[\s]*/', '', $publicize[ $name ] ) ) );

					// Flag the connections we can't match with the requested list to be skipped.
					foreach ( $service_connections as $service_connection ) {
						if ( ! in_array( $service_connection->meta['connection_data']->id, $requested_connections, true ) ) {
							update_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_SKIP . $service_connection->unique_id, 1 );
						} else {
							delete_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_SKIP . $service_connection->unique_id );
						}
					}
				} else {
					// delete all SKIP values; it's okay to publish to all connected IDs for this service.
					foreach ( $service_connections as $service_connection ) {
						delete_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_SKIP . $service_connection->unique_id );
					}
				}
			}
		}

		if ( $publicize_custom_message !== null ) {
			if ( empty( $publicize_custom_message ) ) {
				delete_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_MESS );
			} else {
				update_post_meta( $post_id, $GLOBALS['publicize_ui']->publicize->POST_MESS, trim( $publicize_custom_message ) );
			}
		}

		if ( ! empty( $insert['post_format'] ) ) {
			if ( 'default' !== strtolower( $insert['post_format'] ) ) {
				set_post_format( $post_id, $insert['post_format'] );
			} else {
				set_post_format( $post_id, get_option( 'default_post_format' ) );
			}
		}

		if ( isset( $featured_image ) ) {
			$this->parse_and_set_featured_image( $post_id, $delete_featured_image, $featured_image );
		}

		if ( ! empty( $metadata ) ) {
			foreach ( (array) $metadata as $meta ) {

				$meta = (object) $meta;

				if (
					in_array( $meta->key, Jetpack_SEO_Posts::POST_META_KEYS_ARRAY, true ) &&
					! Jetpack_SEO_Utils::is_enabled_jetpack_seo()
				) {
					return new WP_Error( 'unauthorized', __( 'SEO tools are not enabled for this site.', 'jetpack' ), 403 );
				}

				$existing_meta_item = new stdClass();

				if ( empty( $meta->operation ) ) {
					$meta->operation = 'update';
				}

				if ( ! empty( $meta->value ) ) {
					if ( 'true' == $meta->value ) { // phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual
						$meta->value = true;
					}
					if ( 'false' == $meta->value ) { // phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual
						$meta->value = false;
					}
				}

				if ( ! empty( $meta->id ) ) {
					$meta->id           = absint( $meta->id );
					$existing_meta_item = get_metadata_by_mid( 'post', $meta->id );
					if ( $post_id !== (int) $existing_meta_item->post_id ) {
						// Only allow updates for metadata on this post.
						continue;
					}
				}

				$unslashed_meta_key           = wp_unslash( $meta->key ); // should match what the final key will be.
				$meta->key                    = wp_slash( $meta->key );
				$unslashed_existing_meta_key  = wp_unslash( $existing_meta_item->meta_key );
				$existing_meta_item->meta_key = wp_slash( $existing_meta_item->meta_key );

				// make sure that the meta id passed matches the existing meta key.
				if ( ! empty( $meta->id ) && ! empty( $meta->key ) ) {
					$meta_by_id = get_metadata_by_mid( 'post', $meta->id );
					if ( $meta_by_id->meta_key !== $meta->key ) {
						continue; // skip this meta.
					}
				}

				switch ( $meta->operation ) {
					case 'delete':
						if ( ! empty( $meta->id ) && ! empty( $existing_meta_item->meta_key ) && current_user_can( 'delete_post_meta', $post_id, $unslashed_existing_meta_key ) ) {
							delete_metadata_by_mid( 'post', $meta->id );
						} elseif ( ! empty( $meta->key ) && ! empty( $meta->previous_value ) && current_user_can( 'delete_post_meta', $post_id, $unslashed_meta_key ) ) {
							delete_post_meta( $post_id, $meta->key, $meta->previous_value );
						} elseif ( ! empty( $meta->key ) && current_user_can( 'delete_post_meta', $post_id, $unslashed_meta_key ) ) {
							delete_post_meta( $post_id, $meta->key );
						}

						break;
					case 'add':
						if ( ! empty( $meta->id ) || ! empty( $meta->previous_value ) ) {
							break;
						} elseif ( ! empty( $meta->key ) && ! empty( $meta->value ) && ( current_user_can( 'add_post_meta', $post_id, $unslashed_meta_key ) ) || WPCOM_JSON_API_Metadata::is_public( $meta->key ) ) {
							add_post_meta( $post_id, $meta->key, $meta->value );
						}

						break;
					case 'update':
						if ( ! isset( $meta->value ) ) {
							break;
						} elseif ( ! empty( $meta->id ) && ! empty( $existing_meta_item->meta_key ) && ( current_user_can( 'edit_post_meta', $post_id, $unslashed_existing_meta_key ) || WPCOM_JSON_API_Metadata::is_public( $meta->key ) ) ) {
							update_metadata_by_mid( 'post', $meta->id, $meta->value );
						} elseif ( ! empty( $meta->key ) && ! empty( $meta->previous_value ) && ( current_user_can( 'edit_post_meta', $post_id, $unslashed_meta_key ) || WPCOM_JSON_API_Metadata::is_public( $meta->key ) ) ) {
							update_post_meta( $post_id, $meta->key, $meta->value, $meta->previous_value );
						} elseif ( ! empty( $meta->key ) && ( current_user_can( 'edit_post_meta', $post_id, $unslashed_meta_key ) || WPCOM_JSON_API_Metadata::is_public( $meta->key ) ) ) {
							update_post_meta( $post_id, $meta->key, $meta->value );
						}

						break;
				}
			}
		}

		/** This action is documented in json-endpoints/class.wpcom-json-api-update-post-endpoint.php */
		do_action( 'rest_api_inserted_post', $post_id, $insert, $new );

		$return = $this->get_post_by( 'ID', $post_id, $args['context'] );
		if ( ! $return || is_wp_error( $return ) ) {
			return $return;
		}

		if ( isset( $input['type'] ) && 'revision' === $input['type'] ) {
			$return['preview_nonce'] = wp_create_nonce( 'post_preview_' . $input['parent'] );
		}

		if ( isset( $sticky ) ) {
			// workaround for sticky test occasionally failing, maybe a race condition with stick_post() above.
			$return['sticky'] = ( true === $sticky );
		}

		if ( ! empty( $media_results['errors'] ) ) {
			$return['media_errors'] = $media_results['errors'];
		}

		if ( 'publish' !== $post->post_status ) {
			$sal_site             = $this->get_sal_post_by( 'ID', $post_id, $args['context'] );
			$return['other_URLs'] = (object) $sal_site->get_permalink_suggestions( $input['title'] );
		}

		/** This action is documented in json-endpoints/class.wpcom-json-api-site-settings-endpoint.php */
		do_action( 'wpcom_json_api_objects', 'posts' );

		return $return;
	}

	/**
	 * Delete a post.
	 *
	 * /sites/%s/posts/%d/delete -> $blog_id, $post_id
	 *
	 * @param string $path API path.
	 * @param array  $blog_id Blog ID.
	 * @param array  $post_id Post ID.
	 *
	 * @return array|WP_Error
	 */
	public function delete_post( $path, $blog_id, $post_id ) {
		$post = get_post( $post_id );
		if ( ! $post || is_wp_error( $post ) ) {
			return new WP_Error( 'unknown_post', 'Unknown post', 404 );
		}

		if ( ! $this->is_post_type_allowed( $post->post_type ) ) {
			return new WP_Error( 'unknown_post_type', 'Unknown post type', 404 );
		}

		if ( ! current_user_can( 'delete_post', $post->ID ) ) {
			return new WP_Error( 'unauthorized', 'User cannot delete posts', 403 );
		}

		$args   = $this->query_args();
		$return = $this->get_post_by( 'ID', $post->ID, $args['context'] );
		if ( ! $return || is_wp_error( $return ) ) {
			return $return;
		}

		/** This action is documented in json-endpoints/class.wpcom-json-api-site-settings-endpoint.php */
		do_action( 'wpcom_json_api_objects', 'posts' );

		// we need to call wp_trash_post so that untrash will work correctly for all post types.
		if ( 'trash' === $post->post_status ) {
			wp_delete_post( $post->ID );
		} else {
			wp_trash_post( $post->ID );
		}

		$status = get_post_status( $post->ID );
		if ( false === $status ) {
			$return['status'] = 'deleted';
			return $return;
		}

		return $this->get_post_by( 'ID', $post->ID, $args['context'] );
	}

	/**
	 * Restore a post.
	 *
	 * /sites/%s/posts/%d/restore -> $blog_id, $post_id
	 *
	 * @param string $path API path.
	 * @param int    $blog_id Blog ID.
	 * @param int    $post_id Post ID.
	 *
	 * @return array|WP_Error
	 */
	public function restore_post( $path, $blog_id, $post_id ) {
		$args = $this->query_args();
		$post = get_post( $post_id );

		if ( ! $post || is_wp_error( $post ) ) {
			return new WP_Error( 'unknown_post', 'Unknown post', 404 );
		}

		if ( ! current_user_can( 'delete_post', $post->ID ) ) {
			return new WP_Error( 'unauthorized', 'User cannot restore trashed posts', 403 );
		}

		/** This action is documented in json-endpoints/class.wpcom-json-api-site-settings-endpoint.php */
		do_action( 'wpcom_json_api_objects', 'posts' );

		wp_untrash_post( $post->ID );

		return $this->get_post_by( 'ID', $post->ID, $args['context'] );
	}

	/**
	 * Set or delete a post's featured image.
	 *
	 * @param int  $post_id Post ID.
	 * @param bool $delete_featured_image Whether to delete the featured image.
	 * @param int  $featured_image Thumbnail ID to attach.
	 *
	 * @return null|int|bool
	 */
	protected function parse_and_set_featured_image( $post_id, $delete_featured_image, $featured_image ) {
		if ( $delete_featured_image ) {
			delete_post_thumbnail( $post_id );
			return;
		}

		$featured_image = (string) $featured_image;

		// if we got a post ID, we can just set it as the thumbnail.
		if ( ctype_digit( $featured_image ) && 'attachment' === get_post_type( $featured_image ) ) {
			set_post_thumbnail( $post_id, $featured_image );
			return $featured_image;
		}

		$featured_image_id = $this->handle_media_sideload( $featured_image, $post_id, 'image' );

		if ( empty( $featured_image_id ) || ! is_int( $featured_image_id ) ) {
			return false;
		}

		set_post_thumbnail( $post_id, $featured_image_id );
		return $featured_image_id;
	}

	/**
	 * Get the Author ID for a post.
	 *
	 * @param int|string $author Author ID.
	 * @param string     $post_type Post type.
	 *
	 * @return int|WP_Error
	 */
	protected function parse_and_set_author( $author = null, $post_type = 'post' ) {
		if ( empty( $author ) || ! post_type_supports( $post_type, 'author' ) ) {
			return get_current_user_id();
		}

		$author = (string) $author;
		if ( ctype_digit( $author ) ) {
			$_user = get_user_by( 'id', $author );
			if ( ! $_user || is_wp_error( $_user ) ) {
				return new WP_Error( 'invalid_author', 'Invalid author provided' );
			}

			return $_user->ID;
		}

		$_user = get_user_by( 'login', $author );
		if ( ! $_user || is_wp_error( $_user ) ) {
			return new WP_Error( 'invalid_author', 'Invalid author provided' );
		}

		return $_user->ID;
	}

	/**
	 * Determine if a post can be untrashed.
	 *
	 * @param string  $last_status Last post status.
	 * @param string  $new_status New post status.
	 * @param WP_Post $post Post.
	 *
	 * @return bool
	 */
	protected function should_untrash_post( $last_status, $new_status, $post ) {
		return 'trash' === $last_status && 'trash' !== $new_status && isset( $post->ID );
	}

	/**
	 * Untrash a post.
	 *
	 * @param WP_Post $post Post to untrash.
	 * @param array   $input POST body data.
	 */
	protected function untrash_post( $post, $input ) {
		wp_untrash_post( $post->ID );
		$untrashed_post = get_post( $post->ID );
		// Lets make sure that we use the reverted the slug.
		if ( isset( $untrashed_post->post_name ) && $untrashed_post->post_name . '__trashed' === $input['slug'] ) {
			unset( $input['slug'] );
		}
		return $input;
	}

	/**
	 * Determine if a theme's functions.php file should be loaded.
	 *
	 * @param int $post_id Post ID.
	 *
	 * @return bool
	 */
	protected function should_load_theme_functions( $post_id = null ) {
		if ( empty( $post_id ) ) {
			$input = $this->input( true );
			$type  = $input['type'];
		} else {
			$type = get_post_type( $post_id );
		}

		return ! empty( $type ) && ! in_array( $type, array( 'post', 'revision' ), true );
	}
}
