import { ChatAggregate } from '../../../Domain/Chat/ChatAggregate';
import { ShortChatDto, DetailChatDto } from '../ChatDto';

export class ChatMapper {
  static toShortDto(chat: ChatAggregate): ShortChatDto {
    return {
      id: chat.id,
      userCount: chat.users?.length ?? 0,
      state: chat.state,
    };
  }

  static toDetailDto(chat: ChatAggregate): DetailChatDto {
    return {
      id: chat.id,
      users: chat.users ?? [],
      messages: chat.messages,
      updateDate: chat.updateDate,
      state: chat.state,
    };
  }

  static toShortDtoList(chats: ChatAggregate[]): ShortChatDto[] {
    return chats.map(this.toShortDto);
  }
}