BP_REST_Group_Invites_Endpoint::update_item_permissions_check( WP_REST_Request $request )

	public function update_item_permissions_check( $request ) {
		$retval  = true;
		$user_id = bp_loggedin_user_id();
		$invite  = $this->fetch_single_invite( $request['invite_id'] );

		if ( ! $user_id ) {
			$retval = new WP_Error(
				'bp_rest_authorization_required',
				__( 'Sorry, you need to be logged in to see the group invitations.', 'buddyboss' ),
				array(
					'status' => rest_authorization_required_code(),
				)
			);
		}

		if ( true === $retval && ! $invite ) {
			$retval = new WP_Error(
				'bp_rest_group_invite_invalid_id',
				__( 'Invalid group invitation ID.', 'buddyboss' ),
				array(
					'status' => 404,
				)
			);
		}

		// Only the invitee or a site admin should be able to accept an invitation.
		if (
			true === $retval
			&& ! bp_current_user_can( 'bp_moderate' )
			&& $user_id !== $invite->user_id
		) {
			$retval = new WP_Error(
				'bp_rest_group_invite_cannot_update_item',
				__( 'Sorry, you are not allowed to accept the invitation as requested.', 'buddyboss' ),
				array(
					'status' => rest_authorization_required_code(),
				)
			);
		}

		/**
		 * Filter the group invites `update_item` permissions check.
		 *
		 * @param bool|WP_Error   $retval  Whether the request can continue.
		 * @param WP_REST_Request $request The request sent to the API.
		 *
		 * @since 0.1.0
		 */
		return apply_filters( 'bp_rest_group_invites_update_item_permissions_check', $retval, $request );
	}