package com.tourguide.modules.user.dto;

import com.tourguide.modules.user.entity.MiniUser;
import org.springframework.util.StringUtils;
import java.math.BigDecimal;
import java.time.LocalDateTime;

/** 后台游客详情，消费统计字段将在订单模块接入后由聚合查询填充。 */
public class MiniUserDetailResponse {
    private final Long id;
    private final String username;
    private final String nickname;
    private final String mobile;
    private final String avatar;
    private final String realName;
    private final String idCardNoMasked;
    private final boolean realNameVerified;
    private final Integer status;
    private final LocalDateTime createdAt;
    private final long orderCount;
    private final BigDecimal totalConsumption;
    private final long reviewCount;

    private MiniUserDetailResponse(MiniUser user, long orderCount, BigDecimal totalConsumption, long reviewCount) {
        this.id = user.getId();
        this.username = user.getUsername();
        this.nickname = user.getNickname();
        this.mobile = user.getMobile();
        this.avatar = user.getAvatar();
        this.realName = user.getRealName();
        this.idCardNoMasked = maskIdCardNo(user.getIdCardNo());
        this.realNameVerified = StringUtils.hasText(user.getRealName()) && StringUtils.hasText(user.getIdCardNo());
        this.status = user.getStatus();
        this.createdAt = user.getCreatedAt();
        this.orderCount = orderCount;
        this.totalConsumption = totalConsumption == null ? BigDecimal.ZERO : totalConsumption;
        this.reviewCount = reviewCount;
    }

    public static MiniUserDetailResponse from(MiniUser user) { return from(user, 0L, BigDecimal.ZERO, 0L); }
    public static MiniUserDetailResponse from(MiniUser user, long orderCount, BigDecimal totalConsumption, long reviewCount) {
        return new MiniUserDetailResponse(user, orderCount, totalConsumption, reviewCount);
    }
    public Long getId() { return id; }
    public String getUsername() { return username; }
    public String getNickname() { return nickname; }
    public String getMobile() { return mobile; }
    public String getAvatar() { return avatar; }
    public String getRealName() { return realName; }
    public String getIdCardNoMasked() { return idCardNoMasked; }
    public boolean isRealNameVerified() { return realNameVerified; }
    public Integer getStatus() { return status; }
    public LocalDateTime getCreatedAt() { return createdAt; }
    public long getOrderCount() { return orderCount; }
    public BigDecimal getTotalConsumption() { return totalConsumption; }
    public long getReviewCount() { return reviewCount; }

    private static String maskIdCardNo(String idCardNo) {
        if (!StringUtils.hasText(idCardNo) || idCardNo.length() != 18) { return ""; }
        return idCardNo.substring(0, 6) + "********" + idCardNo.substring(14);
    }
}