#nullable enable
using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UIElements;
using UVC.UIToolkit;
using UVC.UI.Commands;

/// <summary>
/// UTKStyleGuideSample의 Menu 카테고리 Initialize 메서드들
/// </summary>
public partial class UTKStyleGuideSample
{
    #region Menu Fields

    private UTKTopMenu? _sampleMenuHorizontal;
    private UTKTopMenuModel? _sampleModelHorizontal;
    private UTKTopMenu? _sampleMenuIcon;
    private UTKTopMenuModel? _sampleModelIcon;
    private UTKTopMenu? _sampleMenuVertical;
    private UTKTopMenuModel? _sampleModelVertical;

    #endregion

    #region Menu Initializers

    private void InitializeTopMenuSample(VisualElement root)
    {
        InitializeHorizontalMenu(root);
        InitializeIconMenu(root);
        InitializeVerticalMenu(root);
        InitializeApiTest(root);

        SetCodeSamples(root,
            csharpCode: @"// === 기본 가로 메뉴 ===
var menuView = new UTKTopMenu();
var menuModel = new UTKTopMenuModel();

// 메뉴 아이템 추가
var fileMenu = new UTKMenuItemData(""file"", ""파일"");
fileMenu.AddSubMenuItem(new UTKMenuItemData(
    ""file_new"", ""새 파일"",
    new DebugLogCommand(""새 파일 생성""),
    shortcut: ""Ctrl+N""
));
fileMenu.AddSubMenuItem(UTKMenuItemData.CreateSeparator());
fileMenu.AddSubMenuItem(new UTKMenuItemData(
    ""file_save"", ""저장"",
    new DebugLogCommand(""저장""),
    shortcut: ""Ctrl+S""
));
menuModel.AddMenuItem(fileMenu);

// View에 메뉴 생성
menuView.CreateMenuItems(
    menuModel.MenuItems, menuView.MenuContainer);

// 클릭 이벤트
menuView.OnMenuItemClicked += (data) =>
    Debug.Log($""클릭: {data.ItemId}"");

// === 세로 메뉴 ===
var vertMenu = new UTKTopMenu();
vertMenu.Orientation = UTKMenuOrientation.Vertical;
vertMenu.ItemSpacing = 4f;

// === 아이콘 메뉴 ===
var iconMenu = new UTKMenuImageItemData(
    ""settings"",
    UTKMaterialIcons.Settings,
    useMaterialIcon: true,
    imageSize: 24f
);

// === API ===
// ItemId로 Command 실행
bool ok = menuView.ExecuteCommand(""file_new"");

// ItemId로 데이터 조회
if (menuView.TryGetMenuItemData(""file_save"", out var d))
    Debug.Log($""Enabled: {d?.IsEnabled}"");",
            uxmlCode: @"<!-- 네임스페이스 선언 -->
<ui:UXML xmlns:utk=""UVC.UIToolkit"">

<!-- 기본 가로 메뉴 (C#에서 동적 생성) -->
<utk:UTKTopMenu />

<!-- UXML 어트리뷰트로 설정 -->
<utk:UTKTopMenu
    orientation=""Vertical""
    item-spacing=""4"" />

</ui:UXML>");
    }

    /// <summary>
    /// 가로 메뉴 초기화
    /// </summary>
    private void InitializeHorizontalMenu(VisualElement root)
    {
        var container = root.Q<VisualElement>("horizontal-menu-container");
        if (container == null) return;

        _sampleMenuHorizontal = new UTKTopMenu();
        _sampleModelHorizontal = new UTKTopMenuModel();

        // 파일 메뉴
        var fileMenu = new UTKMenuItemData("s_file", "파일");
        fileMenu.AddSubMenuItem(new UTKMenuItemData("s_file_new", "새 파일", new DebugLogCommand("새 파일 생성"), shortcut: "Ctrl+N"));
        fileMenu.AddSubMenuItem(new UTKMenuItemData("s_file_open", "열기", new DebugLogCommand("파일 열기"), shortcut: "Ctrl+O"));
        fileMenu.AddSubMenuItem(UTKMenuItemData.CreateSeparator());
        fileMenu.AddSubMenuItem(new UTKMenuItemData("s_file_save", "저장", new DebugLogCommand("파일 저장"), shortcut: "Ctrl+S"));
        fileMenu.AddSubMenuItem(new UTKMenuItemData("s_file_exit", "종료", new DebugLogCommand("종료"), shortcut: "Alt+F4"));
        _sampleModelHorizontal.AddMenuItem(fileMenu);

        // 편집 메뉴
        var editMenu = new UTKMenuItemData("s_edit", "편집");
        editMenu.AddSubMenuItem(new UTKMenuItemData("s_edit_undo", "실행 취소", new DebugLogCommand("실행 취소"), shortcut: "Ctrl+Z"));
        editMenu.AddSubMenuItem(new UTKMenuItemData("s_edit_redo", "다시 실행", new DebugLogCommand("다시 실행"), shortcut: "Ctrl+Y"));
        editMenu.AddSubMenuItem(UTKMenuItemData.CreateSeparator());
        editMenu.AddSubMenuItem(new UTKMenuItemData("s_edit_copy", "복사", new DebugLogCommand("복사"), shortcut: "Ctrl+C"));
        editMenu.AddSubMenuItem(new UTKMenuItemData("s_edit_paste", "붙여넣기", new DebugLogCommand("붙여넣기"), shortcut: "Ctrl+V"));
        _sampleModelHorizontal.AddMenuItem(editMenu);

        // 보기 메뉴 (2 depth)
        var viewMenu = new UTKMenuItemData("s_view", "보기");
        var layoutMenu = new UTKMenuItemData("s_view_layout", "레이아웃");
        layoutMenu.AddSubMenuItem(new UTKMenuItemData("s_view_layout_default", "기본", new DebugLogCommand("기본 레이아웃")));
        layoutMenu.AddSubMenuItem(new UTKMenuItemData("s_view_layout_wide", "와이드", new DebugLogCommand("와이드 레이아웃")));
        viewMenu.AddSubMenuItem(layoutMenu);
        viewMenu.AddSubMenuItem(new UTKMenuItemData("s_view_fullscreen", "전체 화면", new DebugLogCommand("전체 화면"), shortcut: "F11"));
        _sampleModelHorizontal.AddMenuItem(viewMenu);

        // 도움말 메뉴
        var helpMenu = new UTKMenuItemData("s_help", "도움말");
        helpMenu.AddSubMenuItem(new UTKMenuItemData("s_help_doc", "문서", new DebugLogCommand("문서 열기"), shortcut: "F1"));
        helpMenu.AddSubMenuItem(new UTKMenuItemData("s_help_about", "정보", new DebugLogCommand("정보")));
        _sampleModelHorizontal.AddMenuItem(helpMenu);

        // View에 메뉴 생성
        if (_sampleMenuHorizontal.MenuContainer != null)
        {
            _sampleMenuHorizontal.CreateMenuItems(_sampleModelHorizontal.MenuItems, _sampleMenuHorizontal.MenuContainer);
        }

        _sampleMenuHorizontal.OnMenuItemClicked += OnSampleMenuClicked;
        container.Add(_sampleMenuHorizontal);
    }

    /// <summary>
    /// 아이콘 메뉴 초기화 (ItemSpacing 적용)
    /// </summary>
    private void InitializeIconMenu(VisualElement root)
    {
        var container = root.Q<VisualElement>("icon-menu-container");
        if (container == null) return;

        _sampleMenuIcon = new UTKTopMenu();
        _sampleMenuIcon.ItemSpacing = 4f;
        _sampleModelIcon = new UTKTopMenuModel();

        // 홈 아이콘
        var homeMenu = new UTKMenuImageItemData("s_icon_home", UTKMaterialIcons.Home, useMaterialIcon: true, imageSize: 24f);
        homeMenu.AddSubMenuItem(new UTKMenuItemData("s_icon_home_dashboard", "대시보드", new DebugLogCommand("대시보드")));
        homeMenu.AddSubMenuItem(new UTKMenuItemData("s_icon_home_recent", "최근 항목", new DebugLogCommand("최근 항목")));
        _sampleModelIcon.AddMenuItem(homeMenu);

        // 설정 아이콘
        var settingsMenu = new UTKMenuImageItemData("s_icon_settings", UTKMaterialIcons.Settings, useMaterialIcon: true, imageSize: 24f);
        settingsMenu.AddSubMenuItem(new UTKMenuItemData("s_icon_settings_general", "일반", new DebugLogCommand("일반 설정")));
        settingsMenu.AddSubMenuItem(new UTKMenuItemData("s_icon_settings_display", "화면", new DebugLogCommand("화면 설정")));
        _sampleModelIcon.AddMenuItem(settingsMenu);

        // 알림 아이콘
        var notifMenu = new UTKMenuImageItemData("s_icon_notif", UTKMaterialIcons.Notifications, useMaterialIcon: true, imageSize: 24f);
        notifMenu.AddSubMenuItem(new UTKMenuItemData("s_icon_notif_all", "전체 알림", new DebugLogCommand("전체 알림")));
        notifMenu.AddSubMenuItem(new UTKMenuItemData("s_icon_notif_clear", "알림 지우기", new DebugLogCommand("알림 지우기")));
        _sampleModelIcon.AddMenuItem(notifMenu);

        // 계정 아이콘
        var accountMenu = new UTKMenuImageItemData("s_icon_account", UTKMaterialIcons.AccountCircle, useMaterialIcon: true, imageSize: 24f);
        accountMenu.AddSubMenuItem(new UTKMenuItemData("s_icon_account_profile", "프로필", new DebugLogCommand("프로필")));
        accountMenu.AddSubMenuItem(new UTKMenuItemData("s_icon_account_logout", "로그아웃", new DebugLogCommand("로그아웃")));
        _sampleModelIcon.AddMenuItem(accountMenu);

        if (_sampleMenuIcon.MenuContainer != null)
        {
            _sampleMenuIcon.CreateMenuItems(_sampleModelIcon.MenuItems, _sampleMenuIcon.MenuContainer);
        }

        _sampleMenuIcon.OnMenuItemClicked += OnSampleMenuClicked;
        container.Add(_sampleMenuIcon);
    }

    /// <summary>
    /// 세로 메뉴 초기화
    /// </summary>
    private void InitializeVerticalMenu(VisualElement root)
    {
        var container = root.Q<VisualElement>("vertical-menu-container");
        if (container == null) return;

        _sampleMenuVertical = new UTKTopMenu();
        _sampleMenuVertical.Orientation = UTKMenuOrientation.Vertical;
        _sampleMenuVertical.ItemSpacing = 2f;
        _sampleMenuVertical.SubMenuOffsetX = -10f;
        _sampleMenuVertical.SubMenuOffsetY = 4f;
        _sampleModelVertical = new UTKTopMenuModel();

        // 파일
        var fileMenu = new UTKMenuItemData("sv_file", "파일");
        fileMenu.AddSubMenuItem(new UTKMenuItemData("sv_file_new", "새 파일", new DebugLogCommand("세로: 새 파일"), shortcut: "Ctrl+N"));
        fileMenu.AddSubMenuItem(new UTKMenuItemData("sv_file_open", "열기", new DebugLogCommand("세로: 열기"), shortcut: "Ctrl+O"));
        fileMenu.AddSubMenuItem(UTKMenuItemData.CreateSeparator());
        fileMenu.AddSubMenuItem(new UTKMenuItemData("sv_file_save", "저장", new DebugLogCommand("세로: 저장"), shortcut: "Ctrl+S"));
        _sampleModelVertical.AddMenuItem(fileMenu);

        // 편집
        var editMenu = new UTKMenuItemData("sv_edit", "편집");
        editMenu.AddSubMenuItem(new UTKMenuItemData("sv_edit_undo", "실행 취소", new DebugLogCommand("세로: 실행 취소"), shortcut: "Ctrl+Z"));
        editMenu.AddSubMenuItem(new UTKMenuItemData("sv_edit_redo", "다시 실행", new DebugLogCommand("세로: 다시 실행"), shortcut: "Ctrl+Y"));
        _sampleModelVertical.AddMenuItem(editMenu);

        // 보기
        var viewMenu = new UTKMenuItemData("sv_view", "보기");
        viewMenu.AddSubMenuItem(new UTKMenuItemData("sv_view_fullscreen", "전체 화면", new DebugLogCommand("세로: 전체 화면"), shortcut: "F11"));
        _sampleModelVertical.AddMenuItem(viewMenu);

        // 도움말
        var helpMenu = new UTKMenuItemData("sv_help", "도움말");
        helpMenu.AddSubMenuItem(new UTKMenuItemData("sv_help_about", "정보", new DebugLogCommand("세로: 정보")));
        _sampleModelVertical.AddMenuItem(helpMenu);

        if (_sampleMenuVertical.MenuContainer != null)
        {
            _sampleMenuVertical.CreateMenuItems(_sampleModelVertical.MenuItems, _sampleMenuVertical.MenuContainer);
        }

        _sampleMenuVertical.OnMenuItemClicked += OnSampleMenuClicked;
        container.Add(_sampleMenuVertical);
    }

    /// <summary>
    /// API 테스트 버튼 초기화
    /// </summary>
    private void InitializeApiTest(VisualElement root)
    {
        var container = root.Q<VisualElement>("api-test-container");
        var resultLabel = root.Q<Label>("api-result-label");
        if (container == null || resultLabel == null) return;

        // ExecuteCommand 테스트
        var executeBtn = new UTKButton("ExecuteCommand");
        executeBtn.OnClicked += () =>
        {
            if (_sampleMenuHorizontal == null) return;

            bool result = _sampleMenuHorizontal.ExecuteCommand("s_file_new");
            resultLabel.text = $"ExecuteCommand(\"s_file_new\"): {result}";
        };
        container.Add(executeBtn);

        // TryGetMenuItemData 테스트
        var getDataBtn = new UTKButton("TryGetMenuItemData");
        getDataBtn.OnClicked += () =>
        {
            if (_sampleMenuHorizontal == null) return;

            if (_sampleMenuHorizontal.TryGetMenuItemData("s_file_save", out var data))
            {
                resultLabel.text = $"TryGetMenuItemData(\"s_file_save\"): " +
                    $"DisplayName={data?.DisplayName}, " +
                    $"IsEnabled={data?.IsEnabled}, " +
                    $"Shortcut={data?.Shortcut}";
            }
            else
            {
                resultLabel.text = "TryGetMenuItemData(\"s_file_save\"): 찾을 수 없음";
            }
        };
        container.Add(getDataBtn);

        // CloseAllOpenSubMenus 테스트
        var closeBtn = new UTKButton("CloseAll");
        closeBtn.OnClicked += () =>
        {
            _sampleMenuHorizontal?.CloseAllOpenSubMenus();
            _sampleMenuIcon?.CloseAllOpenSubMenus();
            _sampleMenuVertical?.CloseAllOpenSubMenus();
            resultLabel.text = "모든 서브메뉴 닫기 완료";
        };
        container.Add(closeBtn);
    }

    /// <summary>
    /// 샘플 메뉴 클릭 핸들러
    /// </summary>
    private void OnSampleMenuClicked(UTKMenuItemData itemData)
    {
        if (itemData == null) return;
        Debug.Log($"[UTKTopMenu Sample] 클릭: {itemData.ItemId} - {itemData.DisplayName}");

        if (itemData.Command != null)
        {
            itemData.Command.Execute(itemData.CommandParameter);
        }
    }

    /// <summary>
    /// 메뉴 샘플 리소스 정리
    /// </summary>
    private void CleanupTopMenuSample()
    {
        if (_sampleMenuHorizontal != null)
        {
            _sampleMenuHorizontal.OnMenuItemClicked -= OnSampleMenuClicked;
            _sampleMenuHorizontal.Dispose();
            _sampleMenuHorizontal = null;
        }

        if (_sampleMenuIcon != null)
        {
            _sampleMenuIcon.OnMenuItemClicked -= OnSampleMenuClicked;
            _sampleMenuIcon.Dispose();
            _sampleMenuIcon = null;
        }

        if (_sampleMenuVertical != null)
        {
            _sampleMenuVertical.OnMenuItemClicked -= OnSampleMenuClicked;
            _sampleMenuVertical.Dispose();
            _sampleMenuVertical = null;
        }

        _sampleModelHorizontal?.Dispose();
        _sampleModelHorizontal = null;
        _sampleModelIcon?.Dispose();
        _sampleModelIcon = null;
        _sampleModelVertical?.Dispose();
        _sampleModelVertical = null;
    }

    #endregion
}