package com.mydreamjob.messaging;

import com.mydreamjob.messaging.dto.MessageResponse;
import org.springframework.stereotype.Component;

import java.util.Objects;

/** 集中处理 DIRECT 与 TALENT_INVITATION 消息的白名单映射。 */
@Component
public class MessageViewMapper {

    public static final String RECALLED_PLACEHOLDER = "消息已撤回";

    public MessageResponse toResponse(Message message, Long currentUserId, boolean talentInvitation) {
        if (message == null) return null;
        boolean recalled = "RECALLED".equals(message.getStatus());
        MessageResponse.MessageResponseBuilder builder = MessageResponse.builder()
                .id(message.getId())
                .conversationId(message.getConversationId())
                .content(recalled ? RECALLED_PLACEHOLDER : message.getContent())
                .status(message.getStatus() == null ? "SENT" : message.getStatus())
                .recalledAt(message.getRecalledAt())
                .createdAt(message.getCreatedAt());
        if (talentInvitation) {
            builder.senderScope(Objects.equals(message.getSenderUserId(), currentUserId)
                    ? "CURRENT_USER" : "OTHER_PARTICIPANT");
        } else {
            builder.senderUserId(message.getSenderUserId());
        }
        return builder.build();
    }
}