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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using MoonSharp.Interpreter;
using System.IO;
using UnityEngine.UI;

public class LuaHelper : MonoBehaviour
{
	[SerializeField]
	TextAsset _commonLua;
	Script script;
	public RawImage img;

	void Start ()
	{
		Setup ();
	}

	public void Setup ()
	{
		Debug.Log ("Setup");
		script = new Script ();
		script.Globals ["PrintLog"] = (System.Action<object>)PrintLog;
		script.DoString (_commonLua.text);
		// グローバル変数セットアップ

		// UserInfo注入
		UserData.RegisterType<UserInfo> ();
		ReloadCommonData ();
		script.Call (script.Globals ["DebugFunc"], "Test Execute");

		StartCoroutine (Load<TextAsset> ("sub.lua", x => ApplyLua (x)));


		StartCoroutine (Load<Texture2D> ("testimg", x => {
			img.texture = x;
		}));
	}

	public bool a;

	void Update ()
	{
		if (a) {
			ReloadCommonData ();
		}
	}

	int i;

	public void ReloadCommonData ()
	{
		UserInfo info = GetUserInfo (i++);
		var infoObj = UserData.Create (info);
		script.Globals.Set ("userData", infoObj);
		CallLuaFunc ("DebugUserData");
	}

	void CallLuaFunc (string funcName)
	{
		script.Call (script.Globals [funcName]);
	}

	void ApplyLua (TextAsset t)
	{
		Debug.Log ("ApplyLua");
		script.DoString (t.text);
	}

	/// <summary>
	/// 以下サンプルの場合のアセットバンドルの規則
	/// ObjectName : A
	/// AssetBundleName :a
	/// AssetName : a
	/// </summary>
	IEnumerator Load<T> (string name, System.Action<T> callback) where T : Object
	{
		string path = Application.streamingAssetsPath + "/" + name;
		byte[] b = File.ReadAllBytes (path);
		var req = AssetBundle.LoadFromMemoryAsync (b);
		yield return req;
		var ab = req.assetBundle;
		var t = ab.LoadAsset<T> (name);
		callback (t);
		abList.Add (ab);
	}

	List<AssetBundle> abList = new List<AssetBundle> ();

	void OnGUI ()
	{
		if (GUILayout.Button ("Unload")) {
			if (abList.Count > 0) {
				Debug.Log ("Unload Done");
//				ab.Unload (true);
				foreach (var ab in abList) {
					ab.Unload (false);
				}
				foreach (var ab in abList) {
					Debug.Log (ab);
				}
			}
		}
		if (GUILayout.Button ("ExecuteSub")) {
			script.Call (script.Globals ["SubFunc"]);
		}
	}

	UserInfo userInfo;

	UserInfo GetUserInfo (int i)
	{
		if (userInfo == null) {
			userInfo = new UserInfo ();
			userInfo.name = "Test";
		}
		userInfo.id = i;
		return userInfo;
	}

	UserPlaceInfo GetUserPlaceInfo ()
	{
		return new UserPlaceInfo () {
			region = Region.Hiroshima	
		};
	}

	void PrintLog (object obj)
	{
		Debug.Log (obj);
	}
}

public class UserInfo
{
	public int id;
	public int hp;
	public string name = "foo";
	public Region region;
}

public class UserPlaceInfo
{
	public Region region;
}

public enum Region
{
	Tokyo = 0,
	Osaka,
	Hiroshima,
	Hokkaido,
	Okinawa
}