using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace back.DataModels;

[Table("Users")]
public class User : IEquatable<User>
{
    [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public string Id { get; set; } = null!;
    [Required, EmailAddress]
    public string Email { get; set; } = null!;
    [Required, MinLength(8)]
    public string Password { get; set; } = null!;
    [Required]
    public string Salt { get; set; } = null!;
    public string CreatedAt { get; set; } = null!;

    public virtual Person IdNavigation { get; set; } = null!;
    public virtual ICollection<Gallery> Galleries { get; set; } = [];
    public virtual ICollection<Gallery> GalleriesNavigation { get; set; } = [];
    public virtual ICollection<Photo> Photos { get; set; } = [];
    public virtual ICollection<Role> Roles { get; set; } = [];

    public User() { }
    public User(string id, string email, string password, DateTimeOffset createdAt)
    {
        Id = id;
        Email = email;
        Password = password;
        CreatedAt = createdAt.ToString("dd-MM-yyyy HH:mm:ss zz");
    }

    public bool IsAdmin() => Roles.Any(r => r.IsAdmin());
    public bool IsContentManager() => Roles.Any(r => r.IsContentManager());
    public bool IsUser() => Roles.Any(r => r.IsUser());

    public override int GetHashCode() => HashCode.Combine(Id, Email);

    public override bool Equals(object? obj) => obj is User otherEvent && Equals(otherEvent);

    public bool Equals(User? other)
    {
        if (other is null) return false;
        if (ReferenceEquals(this, other)) return true;
        return Id == other.Id && Email == other.Email;
    }

    public const string SystemUserId = "00000000-0000-0000-0000-000000000001";

    public static readonly User SystemUser = new(
        id: SystemUserId,
        email: "@system",
        password: "",
        createdAt: DateTime.UtcNow
    );
}