BP_REST_Activity_Endpoint::prepare_item_for_response( BP_Activity_Activity $activity, WP_REST_Request $request )

	public function prepare_item_for_response( $activity, $request ) {
		$top_level_parent_id = 'activity_comment' === $activity->type ? $activity->item_id : 0;
		global $activities_template;
		$activities_template                            = new \stdClass();
		$activities_template->disable_blogforum_replies = (bool) bp_core_get_root_option( 'bp-disable-blogforum-comments' );
		$activities_template->activity                  = $activity;

		$data = array(
			'user_id'           => $activity->user_id,
			'name'              => bp_core_get_user_displayname( $activity->user_id ),
			'component'         => $activity->component,
			'content'           => array(
				'raw'      => $activity->content,
				'rendered' => $this->render_item( $activity ),
			),
			'date'              => bp_rest_prepare_date_response( $activity->date_recorded ),
			'id'                => $activity->id,
			'link'              => bp_activity_get_permalink( $activity->id ),
			'primary_item_id'   => $activity->item_id,
			'secondary_item_id' => $activity->secondary_item_id,
			'status'            => $activity->is_spam ? 'spam' : 'published',
			'title'             => $activity->action,
			'type'              => $activity->type,
			'favorited'         => in_array( $activity->id, $this->get_user_favorites(), true ),

			// extend response.
			'can_favorite'      => bp_activity_can_favorite(),
			'favorite_count'    => $this->get_activity_favorite_count( $activity->id ),
			'can_comment'       => ( 'activity_comment' === $activity->type ) ? bp_activity_can_comment_reply( $activity ) : bp_activity_can_comment(),
			'can_delete'        => bp_activity_user_can_delete( $activity ),
			'content_stripped'  => html_entity_decode( wp_strip_all_tags( $activity->content ) ),
			'privacy'           => ( isset( $activity->privacy ) ? $activity->privacy : false ),
		);

		// Get item schema.
		$schema = $this->get_item_schema();

		// Get comments (count).
		if ( ! empty( $activity->children ) ) {
			$comment_count         = wp_filter_object_list( $activity->children, array( 'type' => 'activity_comment' ), 'AND', 'id' );
			$data['comment_count'] = ! empty( $comment_count ) ? count( $comment_count ) : 0;

			if ( ! empty( $schema['properties']['comments'] ) && 'threaded' === $request['display_comments'] ) {
				$data['comments'] = $this->prepare_activity_comments( $activity->children, $request );
			}
		} else {
			$activities            = BP_Activity_Activity::get_activity_comments( $activity->id, $activity->mptt_left, $activity->mptt_right, $request['status'], $top_level_parent_id );
			$data['comment_count'] = ! empty( $activities ) ? count( $activities ) : 0;
		}

		if ( ! empty( $schema['properties']['user_avatar'] ) ) {
			$data['user_avatar'] = array(
				'full'  => bp_core_fetch_avatar(
					array(
						'item_id' => $activity->user_id,
						'html'    => false,
						'type'    => 'full',
					)
				),

				'thumb' => bp_core_fetch_avatar(
					array(
						'item_id' => $activity->user_id,
						'html'    => false,
					)
				),
			);
		}

		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
		$data    = $this->add_additional_fields_to_object( $data, $request );
		$data    = $this->filter_response_by_context( $data, $context );

		$response = rest_ensure_response( $data );
		$response->add_links( $this->prepare_links( $activity ) );

		/**
		 * Filter an activity value returned from the API.
		 *
		 * @param WP_REST_Response     $response The response data.
		 * @param WP_REST_Request      $request  Request used to generate the response.
		 * @param BP_Activity_Activity $activity The activity object.
		 *
		 * @since 0.1.0
		 */
		return apply_filters( 'bp_rest_activity_prepare_value', $response, $request, $activity );
	}