using UnityEditor;
using UnityEngine;
using UnityEngine.UIElements;
using UnityEditor.UIElements;
using System;

public class MeinErstesTool : EditorWindow
{
    public Button myButton;

    [MenuItem("Window/UI Toolkit/MeinErstesTool")]
    public static void ShowExample()
    {
        MeinErstesTool wnd = GetWindow<MeinErstesTool>();
        wnd.titleContent = new GUIContent("MeinErstesTool");
    }

    public void CreateGUI()
    {
        // Each editor window contains a root VisualElement object
        VisualElement root = rootVisualElement;

        // VisualElements objects can contain other VisualElement following a tree hierarchy.
        VisualElement label = new Label("Hello World! From C#");
        root.Add(label);

        // Import UXML
        var visualTree = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/Editor/MeinErstesTool.uxml");
        VisualElement labelFromUXML = visualTree.Instantiate();
        root.Add(labelFromUXML);

        // Call UI Builder stuff
        AssignBuilderEvents();

        // A stylesheet can be added to a VisualElement.
        // The style will be applied to the VisualElement and all of its children.
        var styleSheet = AssetDatabase.LoadAssetAtPath<StyleSheet>("Assets/Editor/MeinErstesTool.uss");
        VisualElement labelWithStyle = new Label("Hello World! With Style");
        labelWithStyle.styleSheets.Add(styleSheet);
        root.Add(labelWithStyle);
    }

    void AssignBuilderEvents()
    {
        var myBtn = rootVisualElement.Q<Button>("BtnGenPrefab");
        myBtn.clicked += GeneratePrefab;
        //rootVisualElement.Add(myBtn);
    }

    private void GeneratePrefab()
    {
        Debug.Log("Spawn Prefab");
        var go = ObjectFactory.CreatePrimitive(PrimitiveType.Sphere);
        go.transform.position = new Vector3(UnityEngine.Random.Range(-10, 10), 0, 0);
    }
}