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

public class DAL : Singleton<DAL>
{
    private Dictionary<Type, Proxy> m_map;

    public DAL()
    {
        m_map = new Dictionary<Type, Proxy>();
    }

    public Proxy Get(Type type)
    {
        Proxy proxy;
        if (!m_map.TryGetValue(type, out proxy))
        {
            proxy = (DataProxy)Activator.CreateInstance(type, true);
            m_map.Add(type, proxy);
            proxy.OnRegister();
        }
        return proxy;
    }

    public T Get<T>() where T : DataProxy, new()
    {
        return Get(typeof(T)) as T;
    }

    public bool Remove(Type type)
    {
        Proxy proxy;
        if(m_map.TryGetValue(type, out proxy))
        {
            proxy.OnRemove();
            return m_map.Remove(type);
        }
        return false;
    }

    public bool Remove<T>() where T : DataProxy
    {
        return Remove(typeof(T));
    }

    public void Clear()
    {
        foreach (var item in m_map)
            item.Value.OnRemove();
        m_map.Clear();
    }
}