using System.Collections.Generic;
using UnityEngine;

namespace com.zibra.liquid.Utilities
{
    public static class PrimitiveHelper
    {
        private static readonly Dictionary<PrimitiveType, Mesh> PrimitiveMeshes = new Dictionary<PrimitiveType, Mesh>();

        public static GameObject CreatePrimitive(PrimitiveType type, bool withCollider)
        {
            if (withCollider)
            {
                return GameObject.CreatePrimitive(type);
            }

            var gameObject = new GameObject(type.ToString());
            var meshFilter = gameObject.AddComponent<MeshFilter>();
            meshFilter.sharedMesh = GetPrimitiveMesh(type);
            gameObject.AddComponent<MeshRenderer>();

            return gameObject;
        }

        public static Mesh GetPrimitiveMesh(PrimitiveType type)
        {
            if (!PrimitiveMeshes.ContainsKey(type))
            {
                CreatePrimitiveMesh(type);
            }

            return PrimitiveMeshes[type];
        }

        private static Mesh CreatePrimitiveMesh(PrimitiveType type)
        {
            var gameObject = GameObject.CreatePrimitive(type);
            var mesh = gameObject.GetComponent<MeshFilter>().sharedMesh;
            Object.Destroy(gameObject);

            PrimitiveMeshes[type] = mesh;
            return mesh;
        }
    }
}