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

namespace public_valetax.Models
{
    [Table("nodes")]
    public class Node
    {
        [Key]
        [Column("id")]
        public long Id { get; set; }

        [Required]
        [Column("tree_id")]
        public long TreeId { get; set; }

        [Column("parent_id")]
        public long? ParentId { get; set; }

        [Required]
        [Column("name")]
        public string Name { get; set; } = string.Empty;

        [Column("created_at")]
        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

        // Navigation properties
        [ForeignKey("TreeId")]
        public Tree Tree { get; set; } = null!;

        [ForeignKey("ParentId")]
        public Node? Parent { get; set; }

        public ICollection<Node> Children { get; set; } = [];
    }
}