next-ucap-messenger/projects/ucap-webmessenger-protocol-event/src/lib/models/info.ts

import { EventType } from '../types/event.type';

export interface Info<T = {}> {
  // 이벤트SEQ
  seq: number;
  // 이벤트타입
  type: EventType;
  // 발신자SEQ
  senderSeq: number;
  // 발신일시
  sendDate: string;
  // 발신내용
  sentMessage: string;
  // // 발신내용
  sentMessageJson?: T;
  // 수신자수
  receiverCount: number;
}

export function isCopyable(eventType: EventType): boolean {
  return (
    EventType.Character === eventType || EventType.Translation === eventType
  );
}

export function isRecalled(eventType: EventType): boolean {
  return EventType.RecalledMessage === eventType;
}

export function isRecallable(event: Info<any>, userSeq: number): boolean {
  return (
    event.senderSeq === userSeq && event.type !== EventType.RecalledMessage
  );
}

export function isForwardable(event: Info, expiredFileStdSeq: number): boolean {
  if (event.type === EventType.File) {
    if (!!expiredFileStdSeq && expiredFileStdSeq <= event.seq) {
      // valid..
      return true;
    } else {
      // expired..
      return false;
    }
  }
  return true;
}