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

namespace RobotNet10.MapManager.Data;

/// <summary>
/// Layout version entity - Version history for each layout
/// Maps to VDMA LIF: layouts[].layoutVersion
/// </summary>
[Table("LayoutVersions")]
public class LayoutVersion
{
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public Guid Id { get; set; }

    /// <summary>
    /// Parent layout reference
    /// </summary>
    [Required]
    public Guid LayoutId { get; set; }

    /// <summary>
    /// Version number (VDMA LIF: layoutVersion)
    /// Suggested: "1", "2", "3" or "1.0", "1.1"
    /// </summary>
    [Required]
    [StringLength(32)]
    public string Version { get; set; } = string.Empty;

    /// <summary>
    /// Version description (VDMA LIF: layoutDescription)
    /// </summary>
    public string? LayoutDescription { get; set; }

    /// <summary>
    /// Creator of this version
    /// </summary>
    [StringLength(256)]
    public string? CreatedBy { get; set; }

    /// <summary>
    /// Creation date
    /// </summary>
    [Required]
    public DateTime CreatedDate { get; set; } = DateTime.UtcNow;

    /// <summary>
    /// Is this the active version?
    /// Only ONE version can be active per layout
    /// Active version is READ-ONLY
    /// </summary>
    [Required]
    public bool IsActive { get; set; } = true;

    // Navigation properties
    [ForeignKey(nameof(LayoutId))]
    public virtual Layout Layout { get; set; } = null!;

    public virtual ICollection<LayoutLevel> Levels { get; set; } = new List<LayoutLevel>();
}