using System.Collections.Generic;
using System.Linq;
using UnityEngine;

namespace Code.Lab6
{
    [System.Serializable]
    public class Vertex : MonoBehaviour
    {
        public int id = -1;
        public List<Edge> neighbours;
        [HideInInspector]
        public Vertex prev;

        private void Awake()
        {
            neighbours ??= new List<Edge>();
        }

        private void OnDrawGizmos()
        {
            Gizmos.color = Color.cyan;
            Gizmos.DrawSphere(transform.position, 0.2f);
        }

        private void OnDrawGizmosSelected()
        {
            if (neighbours == null) return;
            
            Gizmos.color = Color.yellow;
            foreach (var edge in neighbours.Where(edge => edge?.Vertex != null))
            {
                Gizmos.DrawLine(transform.position, edge.Vertex.transform.position);
            }
        }
    }
}