package com.gcsc.guide.entity;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.NoArgsConstructor;

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

@Entity
@Table(name = "users")
@Getter
@NoArgsConstructor
public class User {

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

    @Column(nullable = false, unique = true)
    private String email;

    @Column(nullable = false, length = 100)
    private String name;

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

    @Enumerated(EnumType.STRING)
    @Column(nullable = false, length = 20)
    private UserStatus status = UserStatus.PENDING;

    @Column(name = "is_admin", nullable = false)
    private boolean isAdmin = false;

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

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

    @Column(name = "last_login_at")
    private LocalDateTime lastLoginAt;

    @ManyToMany(fetch = FetchType.LAZY)
    @JoinTable(
        name = "user_roles",
        joinColumns = @JoinColumn(name = "user_id"),
        inverseJoinColumns = @JoinColumn(name = "role_id")
    )
    private Set<Role> roles = new HashSet<>();

    public User(String email, String name, String avatarUrl) {
        this.email = email;
        this.name = name;
        this.avatarUrl = avatarUrl;
    }

    public void activate() {
        this.status = UserStatus.ACTIVE;
    }

    public void reject() {
        this.status = UserStatus.REJECTED;
    }

    public void disable() {
        this.status = UserStatus.DISABLED;
    }

    public void grantAdmin() {
        this.isAdmin = true;
    }

    public void revokeAdmin() {
        this.isAdmin = false;
    }

    public void updateLastLogin() {
        this.lastLoginAt = LocalDateTime.now();
    }

    public void updateProfile(String name, String avatarUrl) {
        this.name = name;
        this.avatarUrl = avatarUrl;
    }

    public void updateRoles(Set<Role> roles) {
        this.roles = roles;
    }

    @PrePersist
    protected void onCreate() {
        this.createdAt = LocalDateTime.now();
        this.updatedAt = LocalDateTime.now();
    }

    @PreUpdate
    protected void onUpdate() {
        this.updatedAt = LocalDateTime.now();
    }
}