using UnityEditor;
using UnityEditor.Overlays;
using UnityEditor.Toolbars;
using UnityEngine;

namespace Aliciza.UXTool
{
    [Overlay(typeof(SceneView), "Align")]
    public class AlignToolbarOverlay : ToolbarOverlay
    {
        AlignToolbarOverlay() : base(
            AlignTopLeft.id,
            AlignTopCenter.id,
            AlignTopRight.id,
            AlignBottomLeft.id,
            AlignBottomCenter.id,
            AlignBottomRight.id,
            AlignHorizontalLeft.id,
            AlignHorizontalCenter.id,
            AlignHorizontalRight.id
        )
        {
        }

        // 12 个按钮的初始化
        [EditorToolbarElement(AlignTopLeft.id, typeof(SceneView))]
        class AlignTopLeft : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignTopLeft";

            public AlignTopLeft()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_vertically_top_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "顶部左对齐";
                clicked += () => OnAlign(AlignType.TopLeft);
            }
        }

        [EditorToolbarElement(AlignTopCenter.id, typeof(SceneView))]
        class AlignTopCenter : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignTopCenter";

            public AlignTopCenter()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_vertically_center_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "顶部居中对齐";
                clicked += () => OnAlign(AlignType.TopCenter);
            }
        }

        [EditorToolbarElement(AlignTopRight.id, typeof(SceneView))]
        class AlignTopRight : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignTopRight";

            public AlignTopRight()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_vertically_top_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "顶部右对齐";
                clicked += () => OnAlign(AlignType.TopRight);
            }
        }


        [EditorToolbarElement(AlignBottomLeft.id, typeof(SceneView))]
        class AlignBottomLeft : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignBottomLeft";

            public AlignBottomLeft()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_vertically_bottom_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "左下对齐";
                clicked += () => OnAlign(AlignType.BottomLeft);
            }
        }

        [EditorToolbarElement(AlignBottomCenter.id, typeof(SceneView))]
        class AlignBottomCenter : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignBottomCenter";

            public AlignBottomCenter()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_vertically_center_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "底部居中对齐";
                clicked += () => OnAlign(AlignType.BottomCenter);
            }
        }

        [EditorToolbarElement(AlignBottomRight.id, typeof(SceneView))]
        class AlignBottomRight : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignBottomRight";

            public AlignBottomRight()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_vertically_bottom_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "右下对齐";
                clicked += () => OnAlign(AlignType.BottomRight);
            }
        }

        [EditorToolbarElement(AlignHorizontalLeft.id, typeof(SceneView))]
        class AlignHorizontalLeft : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignHorizontalLeft";

            public AlignHorizontalLeft()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_horizontally_left_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "水平左对齐";
                clicked += () => OnAlign(AlignType.HorizontalLeft);
            }
        }

        [EditorToolbarElement(AlignHorizontalCenter.id, typeof(SceneView))]
        class AlignHorizontalCenter : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignHorizontalCenter";

            public AlignHorizontalCenter()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_horizontally_center_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "水平居中对齐";
                clicked += () => OnAlign(AlignType.HorizontalCenter);
            }
        }

        [EditorToolbarElement(AlignHorizontalRight.id, typeof(SceneView))]
        class AlignHorizontalRight : EditorToolbarButton
        {
            public const string id = "AlignToolbarOverlay/AlignHorizontalRight";

            public AlignHorizontalRight()
            {
                text = "";
                icon = EditorGUIUtility.IconContent("d_align_horizontally_right_active").image as Texture2D; // 使用带 _active 后缀的图标
                tooltip = "水平右对齐";
                clicked += () => OnAlign(AlignType.HorizontalRight);
            }
        }

        // 枚举定义所有对齐类型
        public enum AlignType
        {
            TopLeft,
            TopCenter,
            TopRight,
            BottomLeft,
            BottomCenter,
            BottomRight,
            HorizontalLeft,
            HorizontalCenter,
            HorizontalRight
        }

        // 对齐方法
        private static void OnAlign(AlignType alignType)
        {
            GameObject selectedObject = Selection.activeGameObject;

            if (selectedObject == null) return;

            RectTransform rectTransform = selectedObject.GetComponent<RectTransform>();
            if (rectTransform == null) return;
            Undo.RecordObject(rectTransform, alignType.ToString());
            // 简化对齐逻辑，设置锚点和位置
            switch (alignType)
            {
                case AlignType.TopLeft:
                    rectTransform.anchorMin = new Vector2(0, 1);
                    rectTransform.anchorMax = new Vector2(0, 1);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
                case AlignType.TopCenter:
                    rectTransform.anchorMin = new Vector2(0.5f, 1);
                    rectTransform.anchorMax = new Vector2(0.5f, 1);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
                case AlignType.TopRight:
                    rectTransform.anchorMin = new Vector2(1, 1);
                    rectTransform.anchorMax = new Vector2(1, 1);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
                case AlignType.BottomLeft:
                    rectTransform.anchorMin = new Vector2(0, 0);
                    rectTransform.anchorMax = new Vector2(0, 0);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
                case AlignType.BottomCenter:
                    rectTransform.anchorMin = new Vector2(0.5f, 0);
                    rectTransform.anchorMax = new Vector2(0.5f, 0);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
                case AlignType.BottomRight:
                    rectTransform.anchorMin = new Vector2(1, 0);
                    rectTransform.anchorMax = new Vector2(1, 0);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
                case AlignType.HorizontalLeft:
                    rectTransform.anchorMin = new Vector2(0, 0.5f);
                    rectTransform.anchorMax = new Vector2(0, 0.5f);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
                case AlignType.HorizontalCenter:
                    rectTransform.anchorMin = new Vector2(0.5f, 0.5f);
                    rectTransform.anchorMax = new Vector2(0.5f, 0.5f);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
                case AlignType.HorizontalRight:
                    rectTransform.anchorMin = new Vector2(1, 0.5f);
                    rectTransform.anchorMax = new Vector2(1, 0.5f);
                    rectTransform.anchoredPosition = Vector2.zero;
                    break;
            }
        }
    }

}