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

namespace NexusReader.Domain.Entities;

/// <summary>
/// Represents an E-book uploaded or owned by a user.
/// </summary>
public class Ebook
{
    [Key]
    public Guid Id { get; set; } = Guid.NewGuid();

    [Required]
    [MaxLength(255)]
    public string Title { get; set; } = string.Empty;

    [MaxLength(255)]
    public string Author { get; set; } = "Unknown";

    [Required]
    public string FilePath { get; set; } = string.Empty;

    public string? CoverUrl { get; set; }

    [Required]
    [MaxLength(128)]
    public string TenantId { get; set; } = "global";

    public DateTime AddedDate { get; set; } = DateTime.UtcNow;

    public DateTime? LastReadDate { get; set; }

    // Relationship to NexusUser
    [Required]
    public string UserId { get; set; } = string.Empty;

    [ForeignKey(nameof(UserId))]
    public NexusUser? User { get; set; }
}