using Butter.Types;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Lactose.Models;

/// <summary>
/// Represents a person with associated metadata and navigation properties.
/// </summary>
public class Person {
    /// <summary>
    /// Gets or sets the unique identifier for the person.
    /// </summary>
    [Key]
    public Guid Id { get; set; }

    /// <summary>
    /// Gets or sets the name of the person.
    /// </summary>
    [Column(TypeName = "VARCHAR(255)")]
    public string Name { get; set; } = string.Empty;

    /// <summary>
    /// Gets or sets the creation date and time of the person record.
    /// </summary>
    [Required]
    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

    /// <summary>
    /// Gets or sets the date and time when the person record was last updated.
    /// </summary>
    public DateTime? UpdatedAt { get; set; }

    /// <summary>
    /// Gets or sets the asset ID used as the profile picture for this person.
    /// </summary>
    public Guid? ProfileAssetId { get; set; }

    /// <summary>
    /// Gets or sets the horizontal crop offset for the profile picture (0–100, default 50 = center).
    /// </summary>
    public float? ProfileCropX { get; set; }

    /// <summary>
    /// Gets or sets the vertical crop offset for the profile picture (0–100, default 50 = center).
    /// </summary>
    public float? ProfileCropY { get; set; }

    /// <summary>
    /// Gets or sets the zoom level for the profile picture (1.0 = fit, higher = more zoomed in).
    /// </summary>
    public float? ProfileCropZoom { get; set; }

    /// <summary>
    /// Gets or sets the visibility level of the person.
    /// </summary>
    public EVisibility Visibility { get; set; }

#region Navigation Properties

    /// <summary>
    /// Gets or sets the profile picture asset.
    /// </summary>
    public Asset? ProfileAsset { get; set; }

    /// <summary>
    /// Gets or sets the list of faces associated with the person.
    /// </summary>
    public List<Face>? Faces { get; set; }

    /// <summary>
    /// Gets or sets the list of albums associated with the person.
    /// </summary>
    public List<Album>? Albums { get; set; }

    /// <summary>
    /// Gets or sets the list of users who maintain this cosplayer.
    /// </summary>
    public List<User>? Maintainers { get; set; }

#endregion

    /// <summary>
    /// Gets or sets the total number of albums (before pagination).
    /// Populated by <c>FindVisible</c>; ignored by EF Core.
    /// </summary>
    [NotMapped]
    public int AlbumTotalCount { get; set; }

    /// <summary>
    /// Gets or sets the total number of non-deleted assets across all visible albums.
    /// Populated by <c>FindVisible</c>; ignored by EF Core.
    /// </summary>
    [NotMapped]
    public int TotalAssetCount { get; set; }

    /// <summary>
    /// Gets or sets the per-album visible asset counts for the paged album list.
    /// Populated by <c>FindVisible</c>; ignored by EF Core.
    /// </summary>
    [NotMapped]
    public Dictionary<Guid, int>? AlbumAssetCounts { get; set; }
}