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

namespace RobotNet10.MapManager.Data;

/// <summary>
/// Layout entity - Root level representing a Building/Facility
/// Maps to VDMA LIF: layouts[].layoutId
/// </summary>
[Table("Layouts")]
public class Layout
{
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public Guid Id { get; set; }

    /// <summary>
    /// Unique layout identifier (VDMA LIF: layoutId)
    /// </summary>
    [Required]
    [StringLength(128)]
    public string LayoutId { get; set; } = string.Empty;

    /// <summary>
    /// Layout name (VDMA LIF: layoutName)
    /// </summary>
    [Required]
    [StringLength(256)]
    public string LayoutName { get; set; } = string.Empty;

    /// <summary>
    /// Description
    /// </summary>
    public string? Description { get; set; }

    /// <summary>
    /// Is layout currently active/operational
    /// </summary>
    [Required]
    public bool IsActive { get; set; } = true;

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

    /// <summary>
    /// Last modified date
    /// </summary>
    [Required]
    public DateTime ModifiedDate { get; set; } = DateTime.UtcNow;

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

    /// <summary>
    /// Last modifier
    /// </summary>
    [StringLength(256)]
    public string? ModifiedBy { get; set; }

    // Navigation properties
    public virtual ICollection<LayoutVersion> Versions { get; set; } = new List<LayoutVersion>();
}