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

namespace RobotNet10.MapManager.Data;

/// <summary>
/// Node entity - Waypoints/nodes on the map
/// Maps to VDMA LIF: layouts[].nodes[]
/// </summary>
[Table("Nodes")]
public class Node
{
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public Guid Id { get; set; }

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

    /// <summary>
    /// Node identifier (VDMA LIF: nodeId) - Required
    /// Unique within level
    /// </summary>
    [Required]
    [StringLength(128)]
    public string NodeId { get; set; } = string.Empty;

    /// <summary>
    /// Node name (VDMA LIF: nodeName) - Optional
    /// </summary>
    [StringLength(256)]
    public string? NodeName { get; set; }

    /// <summary>
    /// Node description (VDMA LIF: nodeDescription) - Optional
    /// </summary>
    public string? NodeDescription { get; set; }

    /// <summary>
    /// Map identifier (VDMA LIF: mapId) - Optional
    /// Reference to map image or data
    /// </summary>
    [StringLength(128)]
    public string? MapId { get; set; }

    /// <summary>
    /// X coordinate in meters (VDMA LIF: nodePosition.x) - Required
    /// </summary>
    [Required]
    public double X { get; set; }

    /// <summary>
    /// Y coordinate in meters (VDMA LIF: nodePosition.y) - Required
    /// </summary>
    [Required]
    public double Y { get; set; }

    // Navigation properties
    [ForeignKey(nameof(LevelId))]
    public virtual LayoutLevel Level { get; set; } = null!;

    public virtual ICollection<NodeVehicleProperty> VehicleProperties { get; set; } = new List<NodeVehicleProperty>();
    public virtual ICollection<Edge> OutgoingEdges { get; set; } = new List<Edge>();
    public virtual ICollection<Edge> IncomingEdges { get; set; } = new List<Edge>();
    public virtual ICollection<StationInteractionNode> StationInteractions { get; set; } = new List<StationInteractionNode>();
}