package com.mydreamjob.auth;

import jakarta.persistence.*;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.annotation.LastModifiedDate;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;

import java.time.LocalDateTime;
import java.util.Set;

/**
 * 用户实体
 */
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
@Entity
@Table(name = "users")
@EntityListeners(AuditingEntityListener.class)
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "phone", nullable = false, unique = true, length = 20)
    private String phone;

    @Column(name = "email", length = 100)
    private String email;

    @Column(name = "nickname", length = 50)
    private String nickname;

    @Column(name = "avatar_url", length = 500)
    private String avatarUrl;

    @Column(name = "password_hash", length = 255)
    private String passwordHash;

    @Column(name = "password_changed_at")
    private LocalDateTime passwordChangedAt;

    @Enumerated(EnumType.STRING)
    @Column(name = "role", nullable = false, length = 30)
    @Builder.Default
    private Role role = Role.STUDENT;

    @ElementCollection(targetClass = Role.class)
    @CollectionTable(name = "user_roles", joinColumns = @JoinColumn(name = "user_id"))
    @Column(name = "role")
    @Enumerated(EnumType.STRING)
    @Builder.Default
    private Set<Role> roles = Set.of(Role.STUDENT);

    @Column(name = "is_active", nullable = false)
    @Builder.Default
    private Boolean active = true;

    @Column(name = "is_verified", nullable = false)
    @Builder.Default
    private Boolean verified = false;

    @CreatedDate
    @Column(name = "created_at", nullable = false, updatable = false)
    private LocalDateTime createdAt;

    @LastModifiedDate
    @Column(name = "updated_at", nullable = false)
    private LocalDateTime updatedAt;

    public enum Role {
        UNASSIGNED,
        STUDENT,
        COMPANY,
        ADMIN
    }
}