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

namespace ProjectX
{
    public class App : MonoBehaviour
    {
        public static App instance { get; private set; }
        
        public static T Module<T>() where T : MonoBehaviour
        {
            var type = typeof(T);
            MonoBehaviour module = null;
            instance.moduleTable.TryGetValue(type, out module);
            return module as T;
        }

        public List<MonoBehaviour> moduleList = new List<MonoBehaviour>();

        private Dictionary<System.Type, MonoBehaviour> moduleTable = new Dictionary<Type, MonoBehaviour>();

        public virtual void Awake()
        {
            instance = this;
            
            foreach (var m in this.moduleList)
            {
                this.moduleTable.Add(m.GetType(), m);
            }
        }

        public void OnDestroy()
        {
            this.moduleTable.Clear();
        }

        public virtual void Start()
        {
        }

        public virtual void Update()
        {
        }
    }
}