package com.xuqm.bugcollect.entity;

import jakarta.persistence.*;
import java.time.LocalDateTime;

/**
 * 记录每个 Issue 影响的唯一用户，用于正确计算 affectedUsers（去重）。
 * 通过联合主键 (issue_id, user_id) 保证唯一性。
 */
@Entity
@Table(name = "log_issue_users")
@IdClass(LogIssueUserEntity.IssueUserId.class)
public class LogIssueUserEntity {

    @Id
    @Column(nullable = false)
    private Long issueId;

    @Id
    @Column(nullable = false, length = 128)
    private String userId;

    @Column(nullable = false)
    private LocalDateTime firstSeenAt;

    public Long getIssueId() { return issueId; }
    public void setIssueId(Long issueId) { this.issueId = issueId; }

    public String getUserId() { return userId; }
    public void setUserId(String userId) { this.userId = userId; }

    public LocalDateTime getFirstSeenAt() { return firstSeenAt; }
    public void setFirstSeenAt(LocalDateTime firstSeenAt) { this.firstSeenAt = firstSeenAt; }

    public static class IssueUserId implements java.io.Serializable {
        private Long issueId;
        private String userId;

        public IssueUserId() {}
        public IssueUserId(Long issueId, String userId) {
            this.issueId = issueId;
            this.userId = userId;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (!(o instanceof IssueUserId that)) return false;
            return java.util.Objects.equals(issueId, that.issueId) && java.util.Objects.equals(userId, that.userId);
        }

        @Override
        public int hashCode() {
            return java.util.Objects.hash(issueId, userId);
        }
    }
}