BP_REST_Document_Endpoint::bp_rest_create_document( array $args )

	public function bp_rest_create_document( $args ) {

		$document_privacy    = ( ! empty( $args['privacy'] ) ? $args['privacy'] : 'public' );
		$document_upload_ids = ( ! empty( $args['document_ids'] ) ? $args['document_ids'] : '' );
		$activity_id         = ( ! empty( $args['activity_id'] ) ? $args['activity_id'] : false );
		$content             = ( ! empty( $args['content'] ) ? $args['content'] : false );
		$user_id             = ( ! empty( $args['user_id'] ) ? $args['user_id'] : get_current_user_id() );
		$id                  = ( ! empty( $args['id'] ) ? $args['id'] : '' );

		$group_id  = ( ! empty( $args['group_id'] ) ? $args['group_id'] : false );
		$folder_id = ( ! empty( $args['folder_id'] ) ? $args['folder_id'] : false );

		// Override the privacy if Folder ID is given.
		if ( ! empty( $folder_id ) ) {
			$folders = bp_folder_get_specific( array( 'folder_ids' => array( $folder_id ) ) );
			if ( ! empty( $folders['folders'] ) ) {
				$folder           = array_pop( $folders['folders'] );
				$document_privacy = $folder->privacy;
			}
		}

		// Update Document.
		if ( ! empty( $id ) ) {

			$wp_attachment_id  = $args['attachment_id'];
			$wp_attachment_url = wp_get_attachment_url( $wp_attachment_id );

			// when the file found to be empty it's means it's not a valid attachment.
			if ( empty( $wp_attachment_url ) ) {
				return;
			}

			$document_activity_id = $activity_id;

			// extract the nice title name.
			$title = get_the_title( $wp_attachment_id );

			$document_id = bp_document_add(
				array(
					'id'            => $id,
					'attachment_id' => $wp_attachment_id,
					'title'         => $title,
					'activity_id'   => $document_activity_id,
					'folder_id'     => ( ! empty( $args['folder_id'] ) ? $args['folder_id'] : false ),
					'group_id'      => ( ! empty( $args['group_id'] ) ? $args['group_id'] : false ),
					'privacy'       => $document_privacy,
					'user_id'       => $user_id,
					'error_type'    => 'wp_error',
				)
			);

			if ( is_int( $document_id ) ) {

				// save document is saved in attachment.
				update_post_meta( $wp_attachment_id, 'bp_document_saved', true );

				// save document meta for activity.
				if ( ! empty( $document_activity_id ) ) {
					update_post_meta( $wp_attachment_id, 'bp_document_activity_id', $document_activity_id );
				}

				$created_document_ids[] = $document_id;

			}
		}

		// created Documents.
		if ( ! empty( $document_upload_ids ) ) {
			$valid_upload_ids = array();

			foreach ( $document_upload_ids as $wp_attachment_id ) {
				$wp_attachment_url = wp_get_attachment_url( $wp_attachment_id );

				// when the file found to be empty it's means it's not a valid attachment.
				if ( empty( $wp_attachment_url ) ) {
					continue;
				}

				$valid_upload_ids[] = $wp_attachment_id;
			}

			$documents = array();
			if ( ! empty( $valid_upload_ids ) ) {
				foreach ( $valid_upload_ids as $wp_attachment_id ) {

					// extract the nice title name.
					$title = get_the_title( $wp_attachment_id );

					$documents[] = array(
						'id'   => $wp_attachment_id,
						'name' => $title,
					);
				}
			}

			if ( ! empty( $documents ) ) {
				$created_document_ids = bp_document_add_handler( $documents, $document_privacy, $content, $group_id, $folder_id );
			}
		}

		if ( empty( $created_document_ids ) ) {
			return new WP_Error(
				'bp_rest_document_creation_error',
				__( 'Error creating document, please try again.', 'buddyboss' ),
				array(
					'status' => 400,
				)
			);
		}

		// Link all uploaded document to main activity.
		if ( ! empty( $activity_id ) && empty( $id ) ) {
			$created_document_ids_joined = implode( ',', $created_document_ids );
			bp_activity_update_meta( $activity_id, 'bp_document_ids', $created_document_ids_joined );

			$main_activity = new BP_Activity_Activity( $activity_id );
			if ( ! empty( $main_activity ) && empty( $group_id ) ) {
				$main_activity->privacy = $document_privacy;
				$main_activity->save();
			}
		}

		return $created_document_ids;
	}