using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UnityEditor;
using UnityEngine;
using UnityEngine.UI;

namespace VketCloudGUITools.Editor
{
    /// <summary>
    /// Editor用：Hierarchy右クリックメニュー追加
    /// VketCloudGUIToolsのUI作成
    /// </summary>
    public class VCGUIHierarchyMenu
    {
        public static class Constants
        {
            private const string CREATE_MENU_ITEM_PREFIX = "GameObject/VketCloudGUI/";

            public const string CREATE_LANDSCAPE_LAYER_MENU_ITEM_KEY = CREATE_MENU_ITEM_PREFIX + "LandscapeLayer";
            public const string CREATE_PORTRAIT_LAYER_MENU_ITEM_KEY = CREATE_MENU_ITEM_PREFIX + "PortraitLayer";
            public const string CREATE_CANVAS_MENU_ITEM_KEY = CREATE_MENU_ITEM_PREFIX + "Canvas";
            public const string CREATE_TEXT_MENU_ITEM_KEY = CREATE_MENU_ITEM_PREFIX + "Text";
            public const string CREATE_IMAGE_MENU_ITEM_KEY = CREATE_MENU_ITEM_PREFIX + "Image";
            public const string CREATE_BUTTON_MENU_ITEM_KEY = CREATE_MENU_ITEM_PREFIX + "Button";
            public const string CREATE_SLIDER_MENU_ITEM_KEY = CREATE_MENU_ITEM_PREFIX + "Slider";
        }

        private static void TrySetParent(GameObject gameObject, GameObject parent)
        {
            if (gameObject != null && parent != null)
            {
                gameObject.transform.SetParent(parent.transform, false);
                gameObject.transform.hasChanged = true;
            }
        }

        [MenuItem(Constants.CREATE_LANDSCAPE_LAYER_MENU_ITEM_KEY, false, 10)]
        private static void LandscapeLayer()
        {
            var selectedGameObject = Selection.activeGameObject;
            var createdGameObject = VCGUIEditorFactory.CreateLayer("VCGUILayer", Runtime.CanvasType.LandScape);
            TrySetParent(createdGameObject, selectedGameObject);
            Selection.activeGameObject = createdGameObject;
            EditorUtility.SetDirty(createdGameObject);
        }

        [MenuItem(Constants.CREATE_PORTRAIT_LAYER_MENU_ITEM_KEY, false, 11)]
        private static void PortraitLayer()
        {
            var selectedGameObject = Selection.activeGameObject;
            var createdGameObject = VCGUIEditorFactory.CreateLayer("VCGUILayer", Runtime.CanvasType.Portrait);
            TrySetParent(createdGameObject, selectedGameObject);
            Selection.activeGameObject = createdGameObject;
            EditorUtility.SetDirty(createdGameObject);
        }

        [MenuItem(Constants.CREATE_CANVAS_MENU_ITEM_KEY, false, 12)]
        private static void Canvas()
        {
            var selectedGameObject = Selection.activeGameObject;
            var createdGameObject = VCGUIEditorFactory.CreateCanvas("VCGUICanvas");
            TrySetParent(createdGameObject, selectedGameObject);
            Selection.activeGameObject = createdGameObject;
            EditorUtility.SetDirty(createdGameObject);
        }

        [MenuItem(Constants.CREATE_TEXT_MENU_ITEM_KEY, false, 13)]
        private static void Text()
        {
            var selectedGameObject = Selection.activeGameObject;
            var createdGameObject = VCGUIEditorFactory.CreateText("VCGUIText");
            TrySetParent(createdGameObject, selectedGameObject);
            Selection.activeGameObject = createdGameObject;
            EditorUtility.SetDirty(createdGameObject);
        }

        [MenuItem(Constants.CREATE_IMAGE_MENU_ITEM_KEY, false, 14)]
        private static void Image()
        {
            var selectedGameObject = Selection.activeGameObject;
            var createdGameObject = VCGUIEditorFactory.CreateImage("VCGUIImage");
            TrySetParent(createdGameObject, selectedGameObject);
            Selection.activeGameObject = createdGameObject;
            EditorUtility.SetDirty(createdGameObject);
        }

        [MenuItem(Constants.CREATE_BUTTON_MENU_ITEM_KEY, false, 15)]
        private static void Button()
        {
            var selectedGameObject = Selection.activeGameObject;
            var createdGameObject = VCGUIEditorFactory.CreateButton("VCGUIButton");
            TrySetParent(createdGameObject, selectedGameObject);
            Selection.activeGameObject = createdGameObject;
            EditorUtility.SetDirty(createdGameObject);
        }

        [MenuItem(Constants.CREATE_SLIDER_MENU_ITEM_KEY, false, 16)]
        private static void Slider()
        {
            var selectedGameObject = Selection.activeGameObject;
            var createdGameObject = VCGUIEditorFactory.CreateSlider("VCGUISlider");
            TrySetParent(createdGameObject, selectedGameObject);
            Selection.activeGameObject = createdGameObject;
            EditorUtility.SetDirty(createdGameObject);
        }
    }
}