using UnityEngine;
using UnityEditor;
using System.Linq;
using System;

public class UnityResourcesEditor : EditorWindow {
	public string resourcesAssetPath = @"Assets/unity editor resources.asset";
	public GUISkin LightSkin;
	public GUISkin DarkSkin;

	[MenuItem ("L/UnityResourcesEditor")]
	static void Init () {
		UnityResourcesEditor window = (UnityResourcesEditor)EditorWindow.GetWindow (typeof (UnityResourcesEditor));
		window.Show();
	}

	void CopyProperties<T>(T from, T to, string[] exclude = null){
		var props = typeof(T).GetProperties ().Where(v=>v.CanWrite && v.CanWrite).ToArray();
		foreach (var p in props) {
			Debug.Log(p.Name);
			if(exclude != null && exclude.Any(v => v == p.Name)){
				Debug.Log("Skin property: " + p.Name);
				continue;
			}
			p.SetValue(to,  p.GetValue(from, null), null);
		}
	}

	void CopyGuiSkin(GUISkin from, GUISkin to){
		Debug.Log ("Copy skins");
		CopyProperties (from, to, new []{"name"});

		CopyProperties (from.settings, to.settings);
	}
	
	void OnGUI () {
		GUILayout.Label ("Asset path", EditorStyles.boldLabel);
		resourcesAssetPath = GUILayout.TextField (resourcesAssetPath);

		if (GUILayout.Button ("Load resources")) {
			var resources = AssetDatabase.LoadAllAssetsAtPath (resourcesAssetPath);
			var skins = resources.Where(v=>v is GUISkin).Cast<GUISkin>().ToArray();

			var lightSkin = skins.First(v=>v.name.ToLower() == "LightSkin".ToLower());
			var darkSkin = skins.First(v=>v.name.ToLower() == "DarkSkin".ToLower());

			CopyGuiSkin(darkSkin, lightSkin);

			Debug.Log("Light skin name: " + lightSkin.name);
			Debug.Log("Dark skin name: " + darkSkin.name);

			AssetDatabase.SaveAssets();



		}

	}
}