using System.Collections.ObjectModel;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Windows.Forms;
using System.Windows.Media;
using AxCopilot.Models;
using AxCopilot.Services;
using AxCopilot.Services.Agent;
using AxCopilot.Themes;
using AxCopilot.Views;

namespace AxCopilot.ViewModels;

/// <summary>
/// 설정 카드에 표시할 테마 미리보기 데이터
/// </summary>
public class ThemeCardModel : INotifyPropertyChanged
{
    private bool _isSelected;

    public string Key  { get; init; } = "";   // settings.json 값 (dark, light, ...)
    public string Name { get; init; } = "";   // 표시 이름

    // 미리보기용 색상
    public string PreviewBackground { get; init; } = "#1A1B2E";
    public string PreviewText       { get; init; } = "#F0F0FF";
    public string PreviewSubText    { get; init; } = "#7A7D9C";
    public string PreviewAccent     { get; init; } = "#4B5EFC";
    public string PreviewItem       { get; init; } = "#252637";
    public string PreviewBorder     { get; init; } = "#2E2F4A";

    public bool IsSelected
    {
        get => _isSelected;
        set { _isSelected = value; OnPropertyChanged(); }
    }

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? n = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
}

/// <summary>
/// 커스텀 테마 단일 색상 항목 (색상 편집 탭 1행 1색)
/// </summary>
public class ColorRowModel : INotifyPropertyChanged
{
    private string _hex;

    public string Label    { get; init; } = "";
    public string Property { get; init; } = ""; // CustomThemeColors의 속성명

    public string Hex
    {
        get => _hex;
        set { _hex = value; OnPropertyChanged(); OnPropertyChanged(nameof(Preview)); }
    }

    public SolidColorBrush Preview
    {
        get
        {
            try { return new SolidColorBrush((Color)ColorConverter.ConvertFromString(Hex)); }
            catch { return new SolidColorBrush(Colors.Transparent); }
        }
    }

    public ColorRowModel(string label, string property, string hex)
    {
        Label = label;
        Property = property;
        _hex = hex;
    }

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? n = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
}

/// <summary>
/// 빠른 실행 단축키 항목 (키워드 → 앱/URL/폴더)
/// </summary>
public class AppShortcutModel : INotifyPropertyChanged
{
    private string _key         = "";
    private string _description = "";
    private string _target      = "";
    private string _type        = "app";

    public string Key         { get => _key;         set { _key = value;         OnPropertyChanged(); } }
    public string Description { get => _description; set { _description = value; OnPropertyChanged(); } }
    public string Target      { get => _target;      set { _target = value;      OnPropertyChanged(); } }
    public string Type        { get => _type;        set { _type = value;        OnPropertyChanged(); OnPropertyChanged(nameof(TypeSymbol)); OnPropertyChanged(nameof(TypeLabel)); } }

    public string TypeSymbol => Type switch
    {
        "url"    => Symbols.Globe,
        "folder" => Symbols.Folder,
        _        => Symbols.App
    };

    public string TypeLabel => Type switch
    {
        "url"    => "URL",
        "folder" => "폴더",
        _        => "앱"
    };

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? n = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
}

/// <summary>
/// 배치 명령 항목 (> 프리픽스)
/// </summary>
public class BatchCommandModel : INotifyPropertyChanged
{
    private string _key     = "";
    private string _command = "";
    private bool   _showWindow;

    public string Key        { get => _key;        set { _key = value;        OnPropertyChanged(); } }
    public string Command    { get => _command;    set { _command = value;    OnPropertyChanged(); } }
    public bool   ShowWindow { get => _showWindow; set { _showWindow = value; OnPropertyChanged(); } }

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? n = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
}

public class SettingsViewModel : INotifyPropertyChanged
{
    private readonly SettingsService _service;
    internal SettingsService Service => _service;

    /// <summary>CodeSettings 바인딩용 프로퍼티. XAML에서 {Binding Code.EnableLsp} 등으로 접근.</summary>
    public Models.CodeSettings Code => _service.Settings.Llm.Code;

    // ─── 작업 복사본 ───────────────────────────────────────────────────────
    private string _hotkey;
    private int    _maxResults;
    private double _opacity;
    private string _selectedThemeKey;
    private string _launcherPosition;
    private string _webSearchEngine;
    private bool   _snippetAutoExpand;
    private string _language;
    private string _indexSpeed;
    private bool _aiEnabled = true;
    private string _operationMode = "internal";
    private string _agentTheme = "system";
    private string _agentThemePreset = "claw";

    // 기능 토글
    private bool _showNumberBadges;
    private bool _enableFavorites;
    private bool _enableRecent;
    private bool _enableActionMode;
    private bool _closeOnFocusLost;
    private bool _rememberPosition;
    private bool _showPrefixBadge;
    private bool _enableIconAnimation;
    private bool _enableRainbowGlow;
    private bool _enableSelectionGlow;
    private bool _enableRandomPlaceholder;
    private bool _showLauncherBorder;
    private bool _showWidgetPerf;
    private bool _showWidgetPomo;
    private bool _showWidgetNote;
    private bool _showWidgetWeather;
    private bool _showWidgetCalendar;
    private bool _showWidgetBattery;
    private bool _shortcutHelpUseThemeColor;

    // LLM 공통 설정
    private string _llmService;
    private bool   _llmStreaming;
    private int    _llmMaxContextTokens;
    private int    _llmRetentionDays;
    private double _llmTemperature;

    // 서비스별 독립 설정
    private string _ollamaEndpoint = "http://localhost:11434";
    private string _ollamaApiKey = "";
    private string _ollamaModel = "";
    private string _vllmEndpoint = "";
    private string _vllmApiKey = "";
    private string _vllmModel = "";
    private bool   _vllmAllowInsecureTls;
    private string _geminiApiKey = "";
    private string _geminiModel = "gemini-2.5-flash";
    private string _sigmoidApiKey = "";
    private string _sigmoidModel = "cl" + "aude-sonnet-4-6";

    // 등록 모델 목록
    public ObservableCollection<RegisteredModelRow> RegisteredModels { get; } = new();

    private static string NormalizeServiceKey(string? service)
        => (service ?? "ollama").Trim().ToLowerInvariant() switch
        {
            "sigmoid" => "claude",
            _ => (service ?? "ollama").Trim().ToLowerInvariant(),
        };

    public string LlmService
    {
        get => _llmService;
        set { _llmService = NormalizeServiceKey(value); OnPropertyChanged(); OnPropertyChanged(nameof(IsInternalService)); OnPropertyChanged(nameof(IsExternalService)); OnPropertyChanged(nameof(NeedsEndpoint)); OnPropertyChanged(nameof(NeedsApiKey)); OnPropertyChanged(nameof(IsGeminiSelected)); OnPropertyChanged(nameof(IsClaudeSelected)); OnPropertyChanged(nameof(IsSigmoidSelected)); }
    }
    public bool IsInternalService => _llmService is "ollama" or "vllm";
    public bool IsExternalService => _llmService is "gemini" or "claude";
    public bool NeedsEndpoint => _llmService is "ollama" or "vllm";
    public bool NeedsApiKey => _llmService is not "ollama";
    public bool IsGeminiSelected => _llmService == "gemini";
    public bool IsClaudeSelected => _llmService == "claude";
    public bool IsSigmoidSelected => IsClaudeSelected;

    // ── Ollama 설정 ──
    public string OllamaEndpoint { get => _ollamaEndpoint; set { _ollamaEndpoint = value; OnPropertyChanged(); } }
    public string OllamaApiKey   { get => _ollamaApiKey;   set { _ollamaApiKey = value; OnPropertyChanged(); } }
    public string OllamaModel    { get => _ollamaModel;    set { _ollamaModel = value; OnPropertyChanged(); } }

    // ── vLLM 설정 ──
    public string VllmEndpoint { get => _vllmEndpoint; set { _vllmEndpoint = value; OnPropertyChanged(); } }
    public string VllmApiKey   { get => _vllmApiKey;   set { _vllmApiKey = value; OnPropertyChanged(); } }
    public string VllmModel    { get => _vllmModel;    set { _vllmModel = value; OnPropertyChanged(); } }
    public bool VllmAllowInsecureTls { get => _vllmAllowInsecureTls; set { _vllmAllowInsecureTls = value; OnPropertyChanged(); } }

    // ── Gemini 설정 ──
    public string GeminiApiKey { get => _geminiApiKey; set { _geminiApiKey = value; OnPropertyChanged(); } }
    public string GeminiModel  { get => _geminiModel;  set { _geminiModel = value; OnPropertyChanged(); } }

    // ── Claude 설정 ──
    public string ClaudeApiKey { get => _sigmoidApiKey; set { _sigmoidApiKey = value; OnPropertyChanged(); OnPropertyChanged(nameof(SigmoidApiKey)); } }
    public string ClaudeModel  { get => _sigmoidModel;  set { _sigmoidModel = value; OnPropertyChanged(); OnPropertyChanged(nameof(SigmoidModel)); } }
    public string SigmoidApiKey { get => ClaudeApiKey; set => ClaudeApiKey = value; } // legacy binding
    public string SigmoidModel  { get => ClaudeModel;  set => ClaudeModel = value; }   // legacy binding

    // ── 공통 응답 설정 ──
    public bool LlmStreaming
    {
        get => _llmStreaming;
        set { _llmStreaming = value; OnPropertyChanged(); }
    }
    public int LlmMaxContextTokens
    {
        get => _llmMaxContextTokens;
        set { _llmMaxContextTokens = Math.Clamp(value, 1024, 1_000_000); OnPropertyChanged(); }
    }
    public int LlmRetentionDays
    {
        get => _llmRetentionDays;
        set { _llmRetentionDays = value; OnPropertyChanged(); }
    }
    public double LlmTemperature
    {
        get => _llmTemperature;
        set { _llmTemperature = Math.Round(Math.Clamp(value, 0.0, 2.0), 1); OnPropertyChanged(); }
    }

    // 에이전트 기본 파일 접근 권한
    private string _defaultAgentPermission;
    public string DefaultAgentPermission
    {
        get => _defaultAgentPermission;
        set { _defaultAgentPermission = PermissionModeCatalog.NormalizeGlobalMode(value); OnPropertyChanged(); }
    }

    // ── 코워크/에이전트 고급 설정 ──
    private string _defaultOutputFormat;
    public string DefaultOutputFormat
    {
        get => _defaultOutputFormat;
        set { _defaultOutputFormat = value; OnPropertyChanged(); }
    }

    private string _autoPreview;
    public string AutoPreview
    {
        get => _autoPreview;
        set { _autoPreview = value; OnPropertyChanged(); }
    }

    private int _maxAgentIterations;
    public int MaxAgentIterations
    {
        get => _maxAgentIterations;
        set { _maxAgentIterations = Math.Clamp(value, 1, 100); OnPropertyChanged(); }
    }

    private int _maxRetryOnError;
    public int MaxRetryOnError
    {
        get => _maxRetryOnError;
        set { _maxRetryOnError = Math.Clamp(value, 0, 10); OnPropertyChanged(); }
    }

    private bool _enableProactiveContextCompact;
    public bool EnableProactiveContextCompact
    {
        get => _enableProactiveContextCompact;
        set { _enableProactiveContextCompact = value; OnPropertyChanged(); }
    }

    private int _contextCompactTriggerPercent;
    public int ContextCompactTriggerPercent
    {
        get => _contextCompactTriggerPercent;
        set { _contextCompactTriggerPercent = Math.Clamp(value, 50, 95); OnPropertyChanged(); }
    }

    private string _agentLogLevel;
    public string AgentLogLevel
    {
        get => _agentLogLevel;
        set { _agentLogLevel = value; OnPropertyChanged(); }
    }

    private string _agentUiExpressionLevel = "balanced";
    public string AgentUiExpressionLevel
    {
        get => _agentUiExpressionLevel;
        set
        {
            _agentUiExpressionLevel = (value ?? "balanced").Trim().ToLowerInvariant() switch
            {
                "rich" => "rich",
                "simple" => "simple",
                _ => "balanced",
            };
            OnPropertyChanged();
        }
    }

    private int _planDiffSeverityMediumCount = 2;
    public int PlanDiffSeverityMediumCount
    {
        get => _planDiffSeverityMediumCount;
        set { _planDiffSeverityMediumCount = Math.Clamp(value, 1, 20); OnPropertyChanged(); }
    }

    private int _planDiffSeverityHighCount = 5;
    public int PlanDiffSeverityHighCount
    {
        get => _planDiffSeverityHighCount;
        set { _planDiffSeverityHighCount = Math.Clamp(value, 1, 30); OnPropertyChanged(); }
    }

    private int _planDiffSeverityMediumRatioPercent = 25;
    public int PlanDiffSeverityMediumRatioPercent
    {
        get => _planDiffSeverityMediumRatioPercent;
        set { _planDiffSeverityMediumRatioPercent = Math.Clamp(value, 1, 100); OnPropertyChanged(); }
    }

    private int _planDiffSeverityHighRatioPercent = 60;
    public int PlanDiffSeverityHighRatioPercent
    {
        get => _planDiffSeverityHighRatioPercent;
        set { _planDiffSeverityHighRatioPercent = Math.Clamp(value, 1, 100); OnPropertyChanged(); }
    }

    private string _agentDecisionLevel = "detailed";
    public string AgentDecisionLevel
    {
        get => _agentDecisionLevel;
        set { _agentDecisionLevel = value; OnPropertyChanged(); }
    }

    private bool _enableMultiPassDocument;
    public bool EnableMultiPassDocument
    {
        get => _enableMultiPassDocument;
        set { _enableMultiPassDocument = value; OnPropertyChanged(); }
    }

    private bool _enableCoworkVerification;
    public bool EnableCoworkVerification
    {
        get => _enableCoworkVerification;
        set { _enableCoworkVerification = value; OnPropertyChanged(); }
    }

    private bool _enableFilePathHighlight = true;
    public bool EnableFilePathHighlight
    {
        get => _enableFilePathHighlight;
        set { _enableFilePathHighlight = value; OnPropertyChanged(); }
    }

    private string _folderDataUsage;
    public string FolderDataUsage
    {
        get => _folderDataUsage;
        set { _folderDataUsage = value; OnPropertyChanged(); }
    }

    // ── 모델 폴백 + 보안 + MCP ──
    private bool _enableAuditLog;
    public bool EnableAuditLog
    {
        get => _enableAuditLog;
        set { _enableAuditLog = value; OnPropertyChanged(); }
    }

    private bool _enableAgentMemory;
    public bool EnableAgentMemory
    {
        get => _enableAgentMemory;
        set { _enableAgentMemory = value; OnPropertyChanged(); }
    }

    private bool _enableProjectRules = true;
    public bool EnableProjectRules
    {
        get => _enableProjectRules;
        set { _enableProjectRules = value; OnPropertyChanged(); }
    }

    private int _maxMemoryEntries;
    public int MaxMemoryEntries
    {
        get => _maxMemoryEntries;
        set { _maxMemoryEntries = value; OnPropertyChanged(); }
    }

    // ── 이미지 입력 (멀티모달) ──
    private bool _enableImageInput = true;
    public bool EnableImageInput
    {
        get => _enableImageInput;
        set { _enableImageInput = value; OnPropertyChanged(); }
    }

    private int _maxImageSizeKb = 5120;
    public int MaxImageSizeKb
    {
        get => _maxImageSizeKb;
        set { _maxImageSizeKb = value; OnPropertyChanged(); }
    }

    // ── 자동 모델 라우팅 ──
    private bool _enableAutoRouter;
    public bool EnableAutoRouter
    {
        get => _enableAutoRouter;
        set { _enableAutoRouter = value; OnPropertyChanged(); }
    }

    private double _autoRouterConfidence = 0.7;
    public double AutoRouterConfidence
    {
        get => _autoRouterConfidence;
        set { _autoRouterConfidence = value; OnPropertyChanged(); }
    }

    // ── 에이전트 훅 시스템 ──
    private bool _enableToolHooks = true;
    public bool EnableToolHooks
    {
        get => _enableToolHooks;
        set { _enableToolHooks = value; OnPropertyChanged(); }
    }

    private int _toolHookTimeoutMs = 10000;
    public int ToolHookTimeoutMs
    {
        get => _toolHookTimeoutMs;
        set { _toolHookTimeoutMs = value; OnPropertyChanged(); }
    }

    private bool _enableHookInputMutation;
    public bool EnableHookInputMutation
    {
        get => _enableHookInputMutation;
        set { _enableHookInputMutation = value; OnPropertyChanged(); }
    }

    private bool _enableHookPermissionUpdate;
    public bool EnableHookPermissionUpdate
    {
        get => _enableHookPermissionUpdate;
        set { _enableHookPermissionUpdate = value; OnPropertyChanged(); }
    }

    // ── 스킬 시스템 ──
    private bool _enableSkillSystem = true;
    public bool EnableSkillSystem
    {
        get => _enableSkillSystem;
        set { _enableSkillSystem = value; OnPropertyChanged(); }
    }

    private bool _enableForkSkillDelegationEnforcement = true;
    public bool EnableForkSkillDelegationEnforcement
    {
        get => _enableForkSkillDelegationEnforcement;
        set { _enableForkSkillDelegationEnforcement = value; OnPropertyChanged(); }
    }

    private string _skillsFolderPath = "";
    public string SkillsFolderPath
    {
        get => _skillsFolderPath;
        set { _skillsFolderPath = value; OnPropertyChanged(); }
    }

    private int _slashPopupPageSize = 6;
    public int SlashPopupPageSize
    {
        get => _slashPopupPageSize;
        set { _slashPopupPageSize = Math.Clamp(value, 3, 10); OnPropertyChanged(); }
    }

    private int _maxFavoriteSlashCommands = 10;
    public int MaxFavoriteSlashCommands
    {
        get => _maxFavoriteSlashCommands;
        set { _maxFavoriteSlashCommands = Math.Clamp(value, 1, 30); OnPropertyChanged(); }
    }

    private int _maxRecentSlashCommands = 20;
    public int MaxRecentSlashCommands
    {
        get => _maxRecentSlashCommands;
        set { _maxRecentSlashCommands = Math.Clamp(value, 5, 50); OnPropertyChanged(); }
    }

    // ── 드래그&드롭 AI ──
    private bool _enableDragDropAiActions = true;
    public bool EnableDragDropAiActions
    {
        get => _enableDragDropAiActions;
        set { _enableDragDropAiActions = value; OnPropertyChanged(); }
    }

    private bool _dragDropAutoSend;
    public bool DragDropAutoSend
    {
        get => _dragDropAutoSend;
        set { _dragDropAutoSend = value; OnPropertyChanged(); }
    }

    // ── 코드 리뷰 ──
    private bool _enableCodeReview = true;
    public bool EnableCodeReview
    {
        get => _enableCodeReview;
        set { _enableCodeReview = value; OnPropertyChanged(); }
    }

    // ── 시각 효과 + 알림 + 개발자 모드 (공통) ──
    private bool _enableChatRainbowGlow;
    public bool EnableChatRainbowGlow
    {
        get => _enableChatRainbowGlow;
        set { _enableChatRainbowGlow = value; OnPropertyChanged(); }
    }

    private bool _notifyOnComplete;
    public bool NotifyOnComplete
    {
        get => _notifyOnComplete;
        set { _notifyOnComplete = value; OnPropertyChanged(); }
    }

    private bool _showTips;
    public bool ShowTips
    {
        get => _showTips;
        set { _showTips = value; OnPropertyChanged(); }
    }

    private bool _devMode;
    public bool DevMode
    {
        get => _devMode;
        set { _devMode = value; OnPropertyChanged(); }
    }

    private bool _devModeStepApproval;
    public bool DevModeStepApproval
    {
        get => _devModeStepApproval;
        set { _devModeStepApproval = value; OnPropertyChanged(); }
    }

    private bool _workflowVisualizer;
    public bool WorkflowVisualizer
    {
        get => _workflowVisualizer;
        set { _workflowVisualizer = value; OnPropertyChanged(); }
    }

    private bool _freeTierMode;
    public bool FreeTierMode
    {
        get => _freeTierMode;
        set { _freeTierMode = value; OnPropertyChanged(); }
    }

    private int _freeTierDelaySeconds = 4;
    public int FreeTierDelaySeconds
    {
        get => _freeTierDelaySeconds;
        set { _freeTierDelaySeconds = value; OnPropertyChanged(); }
    }

    private bool _showTotalCallStats;
    public bool ShowTotalCallStats
    {
        get => _showTotalCallStats;
        set { _showTotalCallStats = value; OnPropertyChanged(); }
    }

    private string _defaultMood = "modern";
    public string DefaultMood
    {
        get => _defaultMood;
        set { _defaultMood = value; OnPropertyChanged(); }
    }

    // 차단 경로/확장자 (읽기 전용 UI)
    public ObservableCollection<string> BlockedPaths { get; } = new();
    public ObservableCollection<string> BlockedExtensions { get; } = new();

    public string Hotkey
    {
        get => _hotkey;
        set { _hotkey = value; OnPropertyChanged(); }
    }

    public int MaxResults
    {
        get => _maxResults;
        set { _maxResults = value; OnPropertyChanged(); }
    }

    public double Opacity
    {
        get => _opacity;
        set { _opacity = value; OnPropertyChanged(); OnPropertyChanged(nameof(OpacityPercent)); }
    }

    public int OpacityPercent => (int)Math.Round(_opacity * 100);

    public string SelectedThemeKey
    {
        get => _selectedThemeKey;
        set
        {
            _selectedThemeKey = value;
            OnPropertyChanged();
            OnPropertyChanged(nameof(IsCustomTheme));
            foreach (var card in ThemeCards)
                card.IsSelected = card.Key == value;
        }
    }

    public bool IsCustomTheme => _selectedThemeKey == "custom";

    public string LauncherPosition
    {
        get => _launcherPosition;
        set { _launcherPosition = value; OnPropertyChanged(); }
    }

    public string WebSearchEngine
    {
        get => _webSearchEngine;
        set { _webSearchEngine = value; OnPropertyChanged(); }
    }

    public bool SnippetAutoExpand
    {
        get => _snippetAutoExpand;
        set { _snippetAutoExpand = value; OnPropertyChanged(); }
    }

    public string Language
    {
        get => _language;
        set { _language = value; OnPropertyChanged(); }
    }

    public string IndexSpeed
    {
        get => _indexSpeed;
        set { _indexSpeed = value; OnPropertyChanged(); OnPropertyChanged(nameof(IndexSpeedHint)); }
    }

    public bool AiEnabled
    {
        get => _aiEnabled;
        set { _aiEnabled = value; OnPropertyChanged(); }
    }

    public string OperationMode
    {
        get => _operationMode;
        set { _operationMode = string.IsNullOrWhiteSpace(value) ? "internal" : value.Trim().ToLowerInvariant(); OnPropertyChanged(); }
    }

    public string AgentTheme
    {
        get => _agentTheme;
        set { _agentTheme = string.IsNullOrWhiteSpace(value) ? "system" : value.Trim().ToLowerInvariant(); OnPropertyChanged(); }
    }

    public string AgentThemePreset
    {
        get => _agentThemePreset;
        set { _agentThemePreset = string.IsNullOrWhiteSpace(value) ? "claw" : value.Trim().ToLowerInvariant(); OnPropertyChanged(); }
    }

    public string IndexSpeedHint => _indexSpeed switch
    {
        "fast" => "CPU 사용률이 높아질 수 있습니다. 고성능 PC에 권장합니다.",
        "slow" => "인덱싱이 오래 걸리지만 PC 성능에 영향을 주지 않습니다.",
        _      => "일반적인 PC에 적합한 균형 설정입니다.",
    };

    // ─── 기능 토글 속성 ───────────────────────────────────────────────────

    public bool ShowNumberBadges
    {
        get => _showNumberBadges;
        set { _showNumberBadges = value; OnPropertyChanged(); }
    }

    public bool EnableFavorites
    {
        get => _enableFavorites;
        set { _enableFavorites = value; OnPropertyChanged(); }
    }

    public bool EnableRecent
    {
        get => _enableRecent;
        set { _enableRecent = value; OnPropertyChanged(); }
    }

    public bool EnableActionMode
    {
        get => _enableActionMode;
        set { _enableActionMode = value; OnPropertyChanged(); }
    }

    public bool CloseOnFocusLost
    {
        get => _closeOnFocusLost;
        set { _closeOnFocusLost = value; OnPropertyChanged(); }
    }

    public bool RememberPosition
    {
        get => _rememberPosition;
        set { _rememberPosition = value; OnPropertyChanged(); }
    }

    public bool ShowPrefixBadge
    {
        get => _showPrefixBadge;
        set { _showPrefixBadge = value; OnPropertyChanged(); }
    }

    public bool ShowWidgetPerf
    {
        get => _showWidgetPerf;
        set { _showWidgetPerf = value; OnPropertyChanged(); }
    }

    public bool ShowWidgetPomo
    {
        get => _showWidgetPomo;
        set { _showWidgetPomo = value; OnPropertyChanged(); }
    }

    public bool ShowWidgetNote
    {
        get => _showWidgetNote;
        set { _showWidgetNote = value; OnPropertyChanged(); }
    }

    public bool ShowWidgetWeather
    {
        get => _showWidgetWeather;
        set { _showWidgetWeather = value; OnPropertyChanged(); }
    }

    public bool ShowWidgetCalendar
    {
        get => _showWidgetCalendar;
        set { _showWidgetCalendar = value; OnPropertyChanged(); }
    }

    public bool ShowWidgetBattery
    {
        get => _showWidgetBattery;
        set { _showWidgetBattery = value; OnPropertyChanged(); }
    }

    public bool EnableIconAnimation
    {
        get => _enableIconAnimation;
        set { _enableIconAnimation = value; OnPropertyChanged(); }
    }

    public bool EnableRainbowGlow
    {
        get => _enableRainbowGlow;
        set { _enableRainbowGlow = value; OnPropertyChanged(); }
    }

    public bool EnableSelectionGlow
    {
        get => _enableSelectionGlow;
        set { _enableSelectionGlow = value; OnPropertyChanged(); }
    }

    public bool EnableRandomPlaceholder
    {
        get => _enableRandomPlaceholder;
        set { _enableRandomPlaceholder = value; OnPropertyChanged(); }
    }

    public bool ShowLauncherBorder
    {
        get => _showLauncherBorder;
        set { _showLauncherBorder = value; OnPropertyChanged(); }
    }

    // ─── v1.4.0 신기능 설정 ──────────────────────────────────────────────────

    private bool _enableTextAction = true;
    public bool EnableTextAction
    {
        get => _enableTextAction;
        set { _enableTextAction = value; OnPropertyChanged(); }
    }

    private bool _enableFileDialogIntegration = false;
    public bool EnableFileDialogIntegration
    {
        get => _enableFileDialogIntegration;
        set { _enableFileDialogIntegration = value; OnPropertyChanged(); }
    }

    private bool _enableClipboardAutoCategory = true;
    public bool EnableClipboardAutoCategory
    {
        get => _enableClipboardAutoCategory;
        set { _enableClipboardAutoCategory = value; OnPropertyChanged(); }
    }

    private int _maxPinnedClipboardItems = 20;
    public int MaxPinnedClipboardItems
    {
        get => _maxPinnedClipboardItems;
        set { _maxPinnedClipboardItems = value; OnPropertyChanged(); }
    }

    private string _textActionTranslateLanguage = "auto";
    public string TextActionTranslateLanguage
    {
        get => _textActionTranslateLanguage;
        set { _textActionTranslateLanguage = value; OnPropertyChanged(); }
    }

    private int _maxSubAgents = 3;
    public int MaxSubAgents
    {
        get => _maxSubAgents;
        set { _maxSubAgents = value; OnPropertyChanged(); }
    }

    private string _pdfExportPath = "";
    public string PdfExportPath
    {
        get => _pdfExportPath;
        set { _pdfExportPath = value; OnPropertyChanged(); }
    }

    private int _tipDurationSeconds = 5;
    public int TipDurationSeconds
    {
        get => _tipDurationSeconds;
        set { _tipDurationSeconds = value; OnPropertyChanged(); }
    }

    public bool ShortcutHelpUseThemeColor
    {
        get => _shortcutHelpUseThemeColor;
        set { _shortcutHelpUseThemeColor = value; OnPropertyChanged(); }
    }

    // ─── 테마 카드 목록 ───────────────────────────────────────────────────
    public List<ThemeCardModel> ThemeCards { get; } = new()
    {
        new()
        {
            Key = "system", Name = "시스템",
            PreviewBackground = "#1E1E1E", PreviewText = "#FFFFFF",
            PreviewSubText = "#888888", PreviewAccent = "#0078D4",
            PreviewItem = "#2D2D2D", PreviewBorder = "#3D3D3D"
        },
        new()
        {
            Key = "dark", Name = "Dark",
            PreviewBackground = "#1A1B2E", PreviewText = "#F0F0FF",
            PreviewSubText = "#7A7D9C", PreviewAccent = "#4B5EFC",
            PreviewItem = "#252637", PreviewBorder = "#2E2F4A"
        },
        new()
        {
            Key = "light", Name = "Light",
            PreviewBackground = "#FAFAFA", PreviewText = "#1A1B2E",
            PreviewSubText = "#666680", PreviewAccent = "#4B5EFC",
            PreviewItem = "#F0F0F8", PreviewBorder = "#E0E0F0"
        },
        new()
        {
            Key = "oled", Name = "OLED",
            PreviewBackground = "#000000", PreviewText = "#FFFFFF",
            PreviewSubText = "#888899", PreviewAccent = "#5C6EFF",
            PreviewItem = "#0A0A14", PreviewBorder = "#1A1A2E"
        },
        new()
        {
            Key = "nord", Name = "Nord",
            PreviewBackground = "#2E3440", PreviewText = "#ECEFF4",
            PreviewSubText = "#D8DEE9", PreviewAccent = "#88C0D0",
            PreviewItem = "#3B4252", PreviewBorder = "#434C5E"
        },
        new()
        {
            Key = "monokai", Name = "Monokai",
            PreviewBackground = "#272822", PreviewText = "#F8F8F2",
            PreviewSubText = "#75715E", PreviewAccent = "#A6E22E",
            PreviewItem = "#3E3D32", PreviewBorder = "#49483E"
        },
        new()
        {
            Key = "catppuccin", Name = "Catppuccin",
            PreviewBackground = "#1E1E2E", PreviewText = "#CDD6F4",
            PreviewSubText = "#A6ADC8", PreviewAccent = "#CBA6F7",
            PreviewItem = "#313244", PreviewBorder = "#45475A"
        },
        new()
        {
            Key = "sepia", Name = "Sepia",
            PreviewBackground = "#F5EFE0", PreviewText = "#3C2F1A",
            PreviewSubText = "#7A6040", PreviewAccent = "#C0822A",
            PreviewItem = "#EDE6D6", PreviewBorder = "#D8CCBA"
        },
        new()
        {
            Key = "alfred", Name = "Indigo",
            PreviewBackground = "#26273B", PreviewText = "#EEEEFF",
            PreviewSubText = "#8888BB", PreviewAccent = "#8877EE",
            PreviewItem = "#3B3D60", PreviewBorder = "#40416A"
        },
        new()
        {
            Key = "alfredlight", Name = "Frost",
            PreviewBackground = "#FFFFFF", PreviewText = "#1A1A2E",
            PreviewSubText = "#9090AA", PreviewAccent = "#5555EE",
            PreviewItem = "#E8E9FF", PreviewBorder = "#DCDCEE"
        },
        new()
        {
            Key = "codex", Name = "Codex",
            PreviewBackground = "#FFFFFF", PreviewText = "#111111",
            PreviewSubText = "#6B7280", PreviewAccent = "#7C3AED",
            PreviewItem = "#F5F5F7", PreviewBorder = "#E5E7EB"
        },
        new()
        {
            Key = "custom", Name = "커스텀",
            PreviewBackground = "#1A1B2E", PreviewText = "#F0F0FF",
            PreviewSubText = "#7A7D9C", PreviewAccent = "#4B5EFC",
            PreviewItem = "#252637", PreviewBorder = "#2E2F4A"
        },
    };

    // ─── 커스텀 색상 행 목록 ──────────────────────────────────────────────
    public List<ColorRowModel> ColorRows { get; }

    // ─── 프롬프트 템플릿 ──────────────────────────────────────────────────
    public ObservableCollection<PromptTemplateRow> PromptTemplates { get; } = new();

    // ─── 배치 명령 ────────────────────────────────────────────────────────
    public ObservableCollection<BatchCommandModel> BatchCommands { get; } = new();

    private string _newBatchKey     = "";
    private string _newBatchCommand = "";
    private bool   _newBatchShowWindow;

    public string NewBatchKey
    {
        get => _newBatchKey;
        set { _newBatchKey = value; OnPropertyChanged(); }
    }
    public string NewBatchCommand
    {
        get => _newBatchCommand;
        set { _newBatchCommand = value; OnPropertyChanged(); }
    }
    public bool NewBatchShowWindow
    {
        get => _newBatchShowWindow;
        set { _newBatchShowWindow = value; OnPropertyChanged(); }
    }

    public bool AddBatchCommand()
    {
        if (string.IsNullOrWhiteSpace(_newBatchKey) || string.IsNullOrWhiteSpace(_newBatchCommand))
            return false;
        if (BatchCommands.Any(b => b.Key.Equals(_newBatchKey.Trim(), StringComparison.OrdinalIgnoreCase)))
            return false;

        BatchCommands.Add(new BatchCommandModel
        {
            Key        = _newBatchKey.Trim(),
            Command    = _newBatchCommand.Trim(),
            ShowWindow = _newBatchShowWindow
        });
        NewBatchKey = ""; NewBatchCommand = ""; NewBatchShowWindow = false;
        return true;
    }

    public void RemoveBatchCommand(BatchCommandModel cmd) => BatchCommands.Remove(cmd);

    // ─── 빠른 실행 단축키 ─────────────────────────────────────────────────
    public ObservableCollection<AppShortcutModel> AppShortcuts { get; } = new();

    private string _newKey         = "";
    private string _newDescription = "";
    private string _newTarget      = "";
    private string _newType        = "app";

    public string NewKey         { get => _newKey;         set { _newKey = value;         OnPropertyChanged(); } }
    public string NewDescription { get => _newDescription; set { _newDescription = value; OnPropertyChanged(); } }
    public string NewTarget      { get => _newTarget;      set { _newTarget = value;      OnPropertyChanged(); } }
    public string NewType        { get => _newType;        set { _newType = value;        OnPropertyChanged(); } }

    // ─── 이벤트 ───────────────────────────────────────────────────────────
    public event EventHandler? ThemePreviewRequested;
    public event EventHandler? SaveCompleted;

    public SettingsViewModel(SettingsService service)
    {
        _service = service;
        var s = service.Settings;

        _hotkey           = s.Hotkey;
        _maxResults       = s.Launcher.MaxResults;
        _opacity          = s.Launcher.Opacity;
        _selectedThemeKey = (s.Launcher.Theme ?? "system").ToLowerInvariant();
        _launcherPosition = s.Launcher.Position;
        _webSearchEngine  = s.Launcher.WebSearchEngine;
        _snippetAutoExpand = s.Launcher.SnippetAutoExpand;
        _language         = s.Launcher.Language;
        _indexSpeed       = s.IndexSpeed ?? "normal";

        // 기능 토글 로드
        _showNumberBadges = s.Launcher.ShowNumberBadges;
        _enableFavorites  = s.Launcher.EnableFavorites;
        _enableRecent     = s.Launcher.EnableRecent;
        _enableActionMode = s.Launcher.EnableActionMode;
        _closeOnFocusLost = s.Launcher.CloseOnFocusLost;
        _rememberPosition = s.Launcher.RememberPosition;
        _showPrefixBadge          = s.Launcher.ShowPrefixBadge;
        _enableIconAnimation      = s.Launcher.EnableIconAnimation;
        _enableRainbowGlow        = s.Launcher.EnableRainbowGlow;
        _enableSelectionGlow      = s.Launcher.EnableSelectionGlow;
        _enableRandomPlaceholder  = s.Launcher.EnableRandomPlaceholder;
        _showLauncherBorder       = s.Launcher.ShowLauncherBorder;
        _showWidgetPerf           = s.Launcher.ShowWidgetPerf;
        _showWidgetPomo           = s.Launcher.ShowWidgetPomo;
        _showWidgetNote           = s.Launcher.ShowWidgetNote;
        _showWidgetWeather        = s.Launcher.ShowWidgetWeather;
        _showWidgetCalendar       = s.Launcher.ShowWidgetCalendar;
        _showWidgetBattery        = s.Launcher.ShowWidgetBattery;
        _shortcutHelpUseThemeColor = s.Launcher.ShortcutHelpUseThemeColor;
        _enableTextAction           = s.Launcher.EnableTextAction;
        // v1.7.1: 파일 대화상자 통합 기본값을 false로 변경 (브라우저 업로드 오작동 방지)
        // 기존 저장값이 true이면 false로 재설정
        _enableFileDialogIntegration = false;
        s.Launcher.EnableFileDialogIntegration = false;
        _enableClipboardAutoCategory = s.Launcher.EnableClipboardAutoCategory;
        _maxPinnedClipboardItems     = s.Launcher.MaxPinnedClipboardItems;
        _textActionTranslateLanguage = s.Launcher.TextActionTranslateLanguage;
        _maxSubAgents        = s.Llm.MaxSubAgents;
        _pdfExportPath       = s.Llm.PdfExportPath;
        _tipDurationSeconds  = s.Llm.TipDurationSeconds;

        // LLM 설정 로드
        var llm = s.Llm;
        _llmService          = NormalizeServiceKey(llm.Service);
        _llmStreaming        = llm.Streaming;
        _llmMaxContextTokens = Math.Clamp(llm.MaxContextTokens, 1024, 1_000_000);
        _llmRetentionDays    = llm.RetentionDays;
        _llmTemperature      = llm.Temperature;
        _defaultAgentPermission = PermissionModeCatalog.NormalizeGlobalMode(llm.DefaultAgentPermission);
        _defaultOutputFormat    = llm.DefaultOutputFormat;
        _defaultMood            = string.IsNullOrEmpty(llm.DefaultMood) ? "modern" : llm.DefaultMood;
        _autoPreview            = llm.AutoPreview;
        _maxAgentIterations     = llm.MaxAgentIterations > 0 ? llm.MaxAgentIterations : 25;
        _maxRetryOnError        = llm.MaxRetryOnError > 0 ? llm.MaxRetryOnError : 3;
        _enableProactiveContextCompact = llm.EnableProactiveContextCompact;
        _contextCompactTriggerPercent = llm.ContextCompactTriggerPercent > 0
            ? Math.Clamp(llm.ContextCompactTriggerPercent, 50, 95)
            : 80;
        _aiEnabled              = _service.Settings.AiEnabled;
        _operationMode          = string.IsNullOrWhiteSpace(_service.Settings.OperationMode) ? "internal" : _service.Settings.OperationMode;
        _agentTheme             = string.IsNullOrWhiteSpace(llm.AgentTheme) ? "system" : llm.AgentTheme;
        _agentThemePreset       = string.IsNullOrWhiteSpace(llm.AgentThemePreset) ? "claw" : llm.AgentThemePreset;
        _agentLogLevel          = llm.AgentLogLevel;
        _agentUiExpressionLevel = (llm.AgentUiExpressionLevel ?? "balanced").Trim().ToLowerInvariant() switch
        {
            "rich" => "rich",
            "simple" => "simple",
            _ => "balanced",
        };
        _planDiffSeverityMediumCount = llm.PlanDiffSeverityMediumCount > 0 ? Math.Clamp(llm.PlanDiffSeverityMediumCount, 1, 20) : 2;
        _planDiffSeverityHighCount = llm.PlanDiffSeverityHighCount > 0 ? Math.Clamp(llm.PlanDiffSeverityHighCount, 1, 30) : 5;
        _planDiffSeverityMediumRatioPercent = llm.PlanDiffSeverityMediumRatioPercent > 0 ? Math.Clamp(llm.PlanDiffSeverityMediumRatioPercent, 1, 100) : 25;
        _planDiffSeverityHighRatioPercent = llm.PlanDiffSeverityHighRatioPercent > 0 ? Math.Clamp(llm.PlanDiffSeverityHighRatioPercent, 1, 100) : 60;
        _agentDecisionLevel     = llm.AgentDecisionLevel;
        _enableMultiPassDocument = llm.EnableMultiPassDocument;
        _enableCoworkVerification = llm.EnableCoworkVerification;
        _enableFilePathHighlight = llm.EnableFilePathHighlight;
        _folderDataUsage        = string.IsNullOrEmpty(llm.FolderDataUsage) ? "active" : llm.FolderDataUsage;
        _enableAuditLog         = llm.EnableAuditLog;
        _enableAgentMemory      = llm.EnableAgentMemory;
        _enableProjectRules     = llm.EnableProjectRules;
        _maxMemoryEntries       = llm.MaxMemoryEntries;
        _enableImageInput       = llm.EnableImageInput;
        _maxImageSizeKb         = llm.MaxImageSizeKb > 0 ? llm.MaxImageSizeKb : 5120;
        _enableToolHooks        = llm.EnableToolHooks;
        _toolHookTimeoutMs      = llm.ToolHookTimeoutMs > 0 ? llm.ToolHookTimeoutMs : 10000;
        _enableHookInputMutation = llm.EnableHookInputMutation;
        _enableHookPermissionUpdate = llm.EnableHookPermissionUpdate;
        _enableSkillSystem      = llm.EnableSkillSystem;
        _enableForkSkillDelegationEnforcement = llm.EnableForkSkillDelegationEnforcement;
        _skillsFolderPath       = llm.SkillsFolderPath;
        _slashPopupPageSize     = llm.SlashPopupPageSize > 0 ? Math.Clamp(llm.SlashPopupPageSize, 3, 10) : 6;
        _maxFavoriteSlashCommands = llm.MaxFavoriteSlashCommands > 0 ? Math.Clamp(llm.MaxFavoriteSlashCommands, 1, 30) : 10;
        _maxRecentSlashCommands   = llm.MaxRecentSlashCommands > 0 ? Math.Clamp(llm.MaxRecentSlashCommands, 5, 50) : 20;
        _enableDragDropAiActions = llm.EnableDragDropAiActions;
        _dragDropAutoSend       = llm.DragDropAutoSend;
        _enableCodeReview       = llm.Code.EnableCodeReview;
        _enableAutoRouter       = llm.EnableAutoRouter;
        _autoRouterConfidence   = llm.AutoRouterConfidence;
        _enableChatRainbowGlow  = llm.EnableChatRainbowGlow;
        _notifyOnComplete       = llm.NotifyOnComplete;
        _showTips               = llm.ShowTips;
        _devMode                = llm.DevMode;  // 저장된 설정 유지 (한 번 켜면 유지, 끄면 하위 기능 비활성)
        _devModeStepApproval    = llm.DevModeStepApproval;
        _workflowVisualizer     = llm.WorkflowVisualizer;
        _freeTierMode           = llm.FreeTierMode;
        _freeTierDelaySeconds   = llm.FreeTierDelaySeconds > 0 ? llm.FreeTierDelaySeconds : 4;
        _showTotalCallStats     = llm.ShowTotalCallStats;

        // 서비스별 독립 설정 로드
        _ollamaEndpoint = llm.OllamaEndpoint;
        _ollamaModel    = llm.OllamaModel;
        _vllmEndpoint   = llm.VllmEndpoint;
        _vllmModel      = llm.VllmModel;
        _vllmAllowInsecureTls = llm.VllmAllowInsecureTls;
        _geminiModel    = string.IsNullOrEmpty(llm.GeminiModel) ? "gemini-2.5-flash" : llm.GeminiModel;
        _sigmoidModel   = string.IsNullOrEmpty(llm.ClaudeModel) ? "cl" + "aude-sonnet-4-6" : llm.ClaudeModel;

        // API 키 로드: 서비스별 독립 저장
        _geminiApiKey = llm.GeminiApiKey;
        _sigmoidApiKey = llm.ClaudeApiKey;
        if (llm.EncryptionEnabled)
        {
            _ollamaApiKey = string.IsNullOrEmpty(llm.OllamaApiKey) ? "" : "(저장됨)";
            _vllmApiKey   = string.IsNullOrEmpty(llm.VllmApiKey) ? "" : "(저장됨)";
        }
        else
        {
            _ollamaApiKey = llm.OllamaApiKey;
            _vllmApiKey   = llm.VllmApiKey;
        }

        // 기존 단일 설정에서 마이그레이션 (최초 1회)
        if (string.IsNullOrEmpty(llm.OllamaEndpoint) && !string.IsNullOrEmpty(llm.Endpoint) && llm.Service == "ollama")
        {
            _ollamaEndpoint = llm.Endpoint;
            _ollamaModel = llm.Model;
            if (!llm.EncryptionEnabled) _ollamaApiKey = llm.EncryptedApiKey;
        }
        if (string.IsNullOrEmpty(llm.VllmEndpoint) && !string.IsNullOrEmpty(llm.Endpoint) && llm.Service == "vllm")
        {
            _vllmEndpoint = llm.Endpoint;
            _vllmModel = llm.Model;
            if (!llm.EncryptionEnabled) _vllmApiKey = llm.EncryptedApiKey;
        }
        if (string.IsNullOrEmpty(llm.GeminiApiKey) && !string.IsNullOrEmpty(llm.ApiKey) && llm.Service == "gemini")
        {
            _geminiApiKey = llm.ApiKey;
            _geminiModel = llm.Model;
        }
        if (string.IsNullOrEmpty(llm.ClaudeApiKey) && !string.IsNullOrEmpty(llm.ApiKey) && NormalizeServiceKey(llm.Service) == "claude")
        {
            _sigmoidApiKey = llm.ApiKey;
            _sigmoidModel = llm.Model;
        }

        // 차단 경로/확장자 로드
        foreach (var p in llm.BlockedPaths) BlockedPaths.Add(p);
        foreach (var e in llm.BlockedExtensions) BlockedExtensions.Add(e);

        // 등록 모델 로드
        foreach (var rm in llm.RegisteredModels)
            RegisteredModels.Add(new RegisteredModelRow
            {
                Alias = rm.Alias,
                EncryptedModelName = rm.EncryptedModelName,
                Service = rm.Service,
                Endpoint = rm.Endpoint,
                ApiKey = rm.ApiKey,
                AllowInsecureTls = rm.AllowInsecureTls,
                AuthType = rm.AuthType ?? "bearer",
                Cp4dUrl = rm.Cp4dUrl ?? "",
                Cp4dUsername = rm.Cp4dUsername ?? "",
                Cp4dPassword = rm.Cp4dPassword ?? "",
            });

        // 프롬프트 템플릿 로드
        foreach (var pt in llm.PromptTemplates)
            PromptTemplates.Add(new PromptTemplateRow { Name = pt.Name, Content = pt.Content, Icon = pt.Icon });

        foreach (var card in ThemeCards)
            card.IsSelected = card.Key == _selectedThemeKey;

        // 알림 설정 로드
        _reminderEnabled         = s.Reminder.Enabled;
        _reminderCorner          = s.Reminder.Corner;
        _reminderIntervalMinutes = s.Reminder.IntervalMinutes;
        _reminderDisplaySeconds  = s.Reminder.DisplaySeconds;

        // 캡처 설정 로드
        _capPrefix              = string.IsNullOrWhiteSpace(s.ScreenCapture.Prefix) ? "cap" : s.ScreenCapture.Prefix;
        _capGlobalHotkeyEnabled = s.ScreenCapture.GlobalHotkeyEnabled;
        _capGlobalHotkey        = string.IsNullOrWhiteSpace(s.ScreenCapture.GlobalHotkey) ? "PrintScreen" : s.ScreenCapture.GlobalHotkey;
        _capGlobalMode          = string.IsNullOrWhiteSpace(s.ScreenCapture.GlobalHotkeyMode) ? "screen" : s.ScreenCapture.GlobalHotkeyMode;
        _capScrollDelayMs       = s.ScreenCapture.ScrollDelayMs > 0 ? s.ScreenCapture.ScrollDelayMs : 120;

        // 클립보드 히스토리 설정 로드
        _clipboardEnabled  = s.ClipboardHistory.Enabled;
        _clipboardMaxItems = s.ClipboardHistory.MaxItems;

        // 시스템 명령 설정 로드
        var sys = s.SystemCommands;
        _sysShowLock       = sys.ShowLock;
        _sysShowSleep      = sys.ShowSleep;
        _sysShowRestart    = sys.ShowRestart;
        _sysShowShutdown   = sys.ShowShutdown;
        _sysShowHibernate  = sys.ShowHibernate;
        _sysShowLogout     = sys.ShowLogout;
        _sysShowRecycleBin = sys.ShowRecycleBin;

        // 시스템 명령 별칭 로드
        var ca = sys.CommandAliases;
        _aliasLock      = FormatAliases(ca, "lock");
        _aliasSleep     = FormatAliases(ca, "sleep");
        _aliasRestart   = FormatAliases(ca, "restart");
        _aliasShutdown  = FormatAliases(ca, "shutdown");
        _aliasHibernate = FormatAliases(ca, "hibernate");
        _aliasLogout    = FormatAliases(ca, "logout");
        _aliasRecycle   = FormatAliases(ca, "recycle");

        // 인덱스 경로 로드
        foreach (var path in s.IndexPaths)
            IndexPaths.Add(path);

        // 인덱스 확장자 로드
        foreach (var ext in s.IndexExtensions)
            IndexExtensions.Add(ext);

        // 스니펫 로드
        foreach (var sn in s.Snippets)
            Snippets.Add(new SnippetRowModel { Key = sn.Key, Name = sn.Name, Content = sn.Content });

        // 배치 명령 로드
        foreach (var alias in s.Aliases.Where(a => a.Type == "batch"))
        {
            BatchCommands.Add(new BatchCommandModel
            {
                Key        = alias.Key,
                Command    = alias.Target,
                ShowWindow = alias.ShowWindow
            });
        }

        // 기존 aliases 로드 (app/url/folder type만)
        foreach (var alias in s.Aliases.Where(a => a.Type is "app" or "url" or "folder"))
        {
            AppShortcuts.Add(new AppShortcutModel
            {
                Key         = alias.Key,
                Description = alias.Description ?? "",
                Target      = alias.Target,
                Type        = alias.Type
            });
        }

        var c = s.Launcher.CustomTheme ?? new CustomThemeColors();
        ColorRows = new List<ColorRowModel>
        {
            new("런처 배경",       nameof(CustomThemeColors.LauncherBackground),     c.LauncherBackground),
            new("항목 배경",       nameof(CustomThemeColors.ItemBackground),         c.ItemBackground),
            new("선택 항목 배경",  nameof(CustomThemeColors.ItemSelectedBackground), c.ItemSelectedBackground),
            new("호버 배경",       nameof(CustomThemeColors.ItemHoverBackground),    c.ItemHoverBackground),
            new("기본 텍스트",     nameof(CustomThemeColors.PrimaryText),           c.PrimaryText),
            new("보조 텍스트",     nameof(CustomThemeColors.SecondaryText),         c.SecondaryText),
            new("플레이스홀더",    nameof(CustomThemeColors.PlaceholderText),       c.PlaceholderText),
            new("강조색",         nameof(CustomThemeColors.AccentColor),           c.AccentColor),
            new("구분선",         nameof(CustomThemeColors.SeparatorColor),        c.SeparatorColor),
            new("힌트 배경",      nameof(CustomThemeColors.HintBackground),        c.HintBackground),
            new("힌트 텍스트",    nameof(CustomThemeColors.HintText),              c.HintText),
            new("테두리",         nameof(CustomThemeColors.BorderColor),           c.BorderColor),
            new("스크롤바",       nameof(CustomThemeColors.ScrollbarThumb),        c.ScrollbarThumb),
            new("그림자",         nameof(CustomThemeColors.ShadowColor),           c.ShadowColor),
        };

        _customWindowCornerRadius = c.WindowCornerRadius;
        _customItemCornerRadius   = c.ItemCornerRadius;
    }

    // ─── 커스텀 테마 모서리 라운딩 ───────────────────────────────────────────
    private int _customWindowCornerRadius = 20;
    private int _customItemCornerRadius   = 10;

    public int CustomWindowCornerRadius
    {
        get => _customWindowCornerRadius;
        set { _customWindowCornerRadius = Math.Clamp(value, 0, 30); OnPropertyChanged(); }
    }

    public int CustomItemCornerRadius
    {
        get => _customItemCornerRadius;
        set { _customItemCornerRadius = Math.Clamp(value, 0, 20); OnPropertyChanged(); }
    }

    // ─── 인덱스 경로 ──────────────────────────────────────────────────────
    public ObservableCollection<string> IndexPaths { get; } = new();

    public void AddIndexPath(string path)
    {
        var trimmed = path.Trim();
        if (string.IsNullOrWhiteSpace(trimmed)) return;
        if (IndexPaths.Any(p => p.Equals(trimmed, StringComparison.OrdinalIgnoreCase))) return;
        IndexPaths.Add(trimmed);
    }

    public void RemoveIndexPath(string path) => IndexPaths.Remove(path);

    // ─── 인덱스 확장자 ──────────────────────────────────────────────────
    public ObservableCollection<string> IndexExtensions { get; } = new();

    public void AddExtension(string ext)
    {
        var trimmed = ext.Trim().ToLowerInvariant();
        if (string.IsNullOrWhiteSpace(trimmed)) return;
        if (!trimmed.StartsWith(".")) trimmed = "." + trimmed;
        if (IndexExtensions.Any(e => e.Equals(trimmed, StringComparison.OrdinalIgnoreCase))) return;
        IndexExtensions.Add(trimmed);
    }

    public void RemoveExtension(string ext) => IndexExtensions.Remove(ext);

    public void BrowseIndexPath()
    {
        using var dlg = new FolderBrowserDialog
        {
            Description         = "인덱스할 폴더 선택",
            UseDescriptionForTitle = true,
            ShowNewFolderButton = false
        };
        if (dlg.ShowDialog() != DialogResult.OK) return;
        AddIndexPath(dlg.SelectedPath);
    }

    // ─── 빠른 실행 단축키 메서드 ──────────────────────────────────────────
    public bool AddShortcut()
    {
        if (string.IsNullOrWhiteSpace(_newKey) || string.IsNullOrWhiteSpace(_newTarget))
            return false;

        // 중복 키 확인
        if (AppShortcuts.Any(s => s.Key.Equals(_newKey.Trim(), StringComparison.OrdinalIgnoreCase)))
            return false;

        AppShortcuts.Add(new AppShortcutModel
        {
            Key         = _newKey.Trim(),
            Description = _newDescription.Trim(),
            Target      = _newTarget.Trim(),
            Type        = _newType
        });

        NewKey = ""; NewDescription = ""; NewTarget = ""; NewType = "app";
        return true;
    }

    public void RemoveShortcut(AppShortcutModel shortcut) => AppShortcuts.Remove(shortcut);

    /// <summary>파일 선택 대화상자. 선택 시 NewTarget에 자동 설정.</summary>
    public void BrowseTarget()
    {
        using var dlg = new OpenFileDialog
        {
            Filter = "실행 파일 (*.exe)|*.exe|모든 파일 (*.*)|*.*",
            Title  = "앱 선택"
        };
        if (dlg.ShowDialog() != DialogResult.OK) return;

        NewTarget = dlg.FileName;
        NewType   = "app";
        if (string.IsNullOrWhiteSpace(NewDescription))
            NewDescription = System.IO.Path.GetFileNameWithoutExtension(dlg.FileName);
    }

    public void SelectTheme(string key)
    {
        SelectedThemeKey = key;
        ThemePreviewRequested?.Invoke(this, EventArgs.Empty);
    }

    public void PickColor(ColorRowModel row)
    {
        using var dlg = new ColorDialog { FullOpen = true };
        try
        {
            var color = (Color)ColorConverter.ConvertFromString(row.Hex);
            dlg.Color = System.Drawing.Color.FromArgb(color.R, color.G, color.B);
        }
        catch { /* 기본값 사용 */ }

        if (dlg.ShowDialog() != DialogResult.OK) return;

        row.Hex = $"#{dlg.Color.R:X2}{dlg.Color.G:X2}{dlg.Color.B:X2}";
        if (_selectedThemeKey == "custom")
            ThemePreviewRequested?.Invoke(this, EventArgs.Empty);
    }

    // 시스템 예약 프리픽스 (핸들러에서 이미 사용 중인 키)
    private static readonly HashSet<string> ReservedPrefixes = new(StringComparer.OrdinalIgnoreCase)
    {
        "=", "?", "#", "$", ";", "@", "~", ">", "!",
        "emoji", "color", "recent", "note", "uninstall", "kill", "media",
        "info", "*", "json", "encode", "port", "env", "snap", "help",
        "pick", "date", "svc", "pipe", "journal", "routine", "batch",
        "diff", "win", "stats", "fav", "rename", "monitor", "scaffold",
    };

    /// <summary>설정 저장 전 프리픽스/키워드 충돌을 검사합니다. 충돌 시 메시지를 반환합니다.</summary>
    public string? ValidateBeforeSave()
    {
        // 캡처 프리픽스 충돌 검사
        var cap = string.IsNullOrWhiteSpace(_capPrefix) ? "cap" : _capPrefix.Trim();
        if (cap != "cap" && ReservedPrefixes.Contains(cap))
            return $"캡처 프리픽스 '{cap}'은(는) 이미 사용 중인 예약어입니다.";

        // 빠른 실행 별칭 키 중복 검사
        var aliasKeys = AppShortcuts.Select(s => s.Key.ToLowerInvariant()).ToList();
        var duplicateAlias = aliasKeys.GroupBy(k => k).FirstOrDefault(g => g.Count() > 1);
        if (duplicateAlias != null)
            return $"빠른 실행 키워드 '{duplicateAlias.Key}'이(가) 중복되었습니다.";

        // 빠른 실행 별칭 키 vs 예약 프리픽스 충돌
        foreach (var key in aliasKeys)
        {
            if (ReservedPrefixes.Contains(key))
                return $"빠른 실행 키워드 '{key}'은(는) 시스템 예약어와 충돌합니다.";
        }

        // 배치 명령 키 중복 검사
        var batchKeys = BatchCommands.Select(b => b.Key.ToLowerInvariant()).ToList();
        var duplicateBatch = batchKeys.GroupBy(k => k).FirstOrDefault(g => g.Count() > 1);
        if (duplicateBatch != null)
            return $"배치 명령 키워드 '{duplicateBatch.Key}'이(가) 중복되었습니다.";

        return null; // 문제 없음
    }

    public void Save()
    {
        // 충돌 검사
        var conflict = ValidateBeforeSave();
        if (conflict != null)
        {
            CustomMessageBox.Show(
                conflict,
                "AX Copilot — 설정 저장 오류",
                System.Windows.MessageBoxButton.OK,
                System.Windows.MessageBoxImage.Warning);
            return;
        }

        var s = _service.Settings;
        s.Hotkey                     = _hotkey;
        s.Launcher.MaxResults        = _maxResults;
        s.Launcher.Opacity           = _opacity;
        s.Launcher.Theme             = _selectedThemeKey;
        s.Launcher.Position          = _launcherPosition;
        s.Launcher.WebSearchEngine   = _webSearchEngine;
        s.Launcher.SnippetAutoExpand = _snippetAutoExpand;
        s.Launcher.Language          = _language;
        L10n.SetLanguage(_language);

        // 기능 토글 저장
        s.Launcher.ShowNumberBadges = _showNumberBadges;
        s.Launcher.EnableFavorites  = _enableFavorites;
        s.Launcher.EnableRecent     = _enableRecent;
        s.Launcher.EnableActionMode = _enableActionMode;
        s.Launcher.CloseOnFocusLost = _closeOnFocusLost;
        s.Launcher.RememberPosition = _rememberPosition;
        s.Launcher.ShowPrefixBadge          = _showPrefixBadge;
        s.Launcher.EnableIconAnimation      = _enableIconAnimation;
        s.Launcher.EnableRainbowGlow        = _enableRainbowGlow;
        s.Launcher.EnableSelectionGlow      = _enableSelectionGlow;
        s.Launcher.EnableRandomPlaceholder  = _enableRandomPlaceholder;
        s.Launcher.ShowLauncherBorder       = _showLauncherBorder;
        s.Launcher.ShowWidgetPerf           = _showWidgetPerf;
        s.Launcher.ShowWidgetPomo           = _showWidgetPomo;
        s.Launcher.ShowWidgetNote           = _showWidgetNote;
        s.Launcher.ShowWidgetWeather        = _showWidgetWeather;
        s.Launcher.ShowWidgetCalendar       = _showWidgetCalendar;
        s.Launcher.ShowWidgetBattery        = _showWidgetBattery;
        s.Launcher.ShortcutHelpUseThemeColor = _shortcutHelpUseThemeColor;
        s.Launcher.EnableTextAction           = _enableTextAction;
        s.Launcher.EnableFileDialogIntegration = _enableFileDialogIntegration;
        s.Launcher.EnableClipboardAutoCategory = _enableClipboardAutoCategory;
        s.Launcher.MaxPinnedClipboardItems     = _maxPinnedClipboardItems;
        s.Launcher.TextActionTranslateLanguage = _textActionTranslateLanguage;
        s.Llm.MaxSubAgents       = _maxSubAgents;
        s.Llm.PdfExportPath      = _pdfExportPath;
        s.Llm.TipDurationSeconds = _tipDurationSeconds;

        // LLM 공통 설정 저장
        s.Llm.Service          = _llmService;
        s.Llm.Streaming        = _llmStreaming;
        s.Llm.MaxContextTokens = Math.Clamp(_llmMaxContextTokens, 1024, 1_000_000);
        s.Llm.RetentionDays    = _llmRetentionDays;
        s.Llm.Temperature      = _llmTemperature;
        s.Llm.DefaultAgentPermission = PermissionModeCatalog.NormalizeGlobalMode(_defaultAgentPermission);
        s.Llm.DefaultOutputFormat    = _defaultOutputFormat;
        s.Llm.DefaultMood            = _defaultMood;
        s.Llm.AutoPreview            = _autoPreview;
        s.Llm.MaxAgentIterations     = _maxAgentIterations;
        s.Llm.MaxRetryOnError        = _maxRetryOnError;
        s.Llm.EnableProactiveContextCompact = _enableProactiveContextCompact;
        s.Llm.ContextCompactTriggerPercent = _contextCompactTriggerPercent;
        s.AiEnabled                = _aiEnabled;
        s.OperationMode            = _operationMode;
        s.Llm.AgentTheme           = _agentTheme;
        s.Llm.AgentThemePreset     = _agentThemePreset;
        s.Llm.AgentLogLevel          = _agentLogLevel;
        s.Llm.AgentUiExpressionLevel = _agentUiExpressionLevel;
        s.Llm.PlanDiffSeverityMediumCount = _planDiffSeverityMediumCount;
        s.Llm.PlanDiffSeverityHighCount = _planDiffSeverityHighCount;
        s.Llm.PlanDiffSeverityMediumRatioPercent = _planDiffSeverityMediumRatioPercent;
        s.Llm.PlanDiffSeverityHighRatioPercent = _planDiffSeverityHighRatioPercent;
        s.Llm.AgentDecisionLevel     = _agentDecisionLevel;
        s.Llm.EnableMultiPassDocument = _enableMultiPassDocument;
        s.Llm.EnableCoworkVerification = _enableCoworkVerification;
        s.Llm.EnableFilePathHighlight = _enableFilePathHighlight;
        s.Llm.FolderDataUsage        = _folderDataUsage;
        s.Llm.EnableAuditLog         = _enableAuditLog;
        s.Llm.EnableAgentMemory      = _enableAgentMemory;
        s.Llm.EnableProjectRules     = _enableProjectRules;
        s.Llm.MaxMemoryEntries       = _maxMemoryEntries;
        s.Llm.EnableImageInput       = _enableImageInput;
        s.Llm.MaxImageSizeKb         = _maxImageSizeKb;
        s.Llm.EnableToolHooks        = _enableToolHooks;
        s.Llm.ToolHookTimeoutMs      = _toolHookTimeoutMs;
        s.Llm.EnableHookInputMutation = _enableHookInputMutation;
        s.Llm.EnableHookPermissionUpdate = _enableHookPermissionUpdate;
        s.Llm.EnableSkillSystem      = _enableSkillSystem;
        s.Llm.EnableForkSkillDelegationEnforcement = _enableForkSkillDelegationEnforcement;
        s.Llm.SkillsFolderPath       = _skillsFolderPath;
        s.Llm.SlashPopupPageSize     = _slashPopupPageSize;
        s.Llm.MaxFavoriteSlashCommands = _maxFavoriteSlashCommands;
        s.Llm.MaxRecentSlashCommands   = _maxRecentSlashCommands;
        s.Llm.EnableDragDropAiActions = _enableDragDropAiActions;
        s.Llm.DragDropAutoSend       = _dragDropAutoSend;
        s.Llm.Code.EnableCodeReview  = _enableCodeReview;
        s.Llm.EnableAutoRouter       = _enableAutoRouter;
        s.Llm.AutoRouterConfidence   = _autoRouterConfidence;
        s.Llm.EnableChatRainbowGlow  = _enableChatRainbowGlow;
        s.Llm.NotifyOnComplete       = _notifyOnComplete;
        s.Llm.ShowTips               = _showTips;
        s.Llm.DevMode                = _devMode;
        s.Llm.DevModeStepApproval    = _devModeStepApproval;
        s.Llm.WorkflowVisualizer     = _workflowVisualizer;
        s.Llm.FreeTierMode           = _freeTierMode;
        s.Llm.FreeTierDelaySeconds   = _freeTierDelaySeconds;
        s.Llm.ShowTotalCallStats     = _showTotalCallStats;

        // 서비스별 독립 설정 저장
        s.Llm.OllamaEndpoint = _ollamaEndpoint;
        s.Llm.OllamaModel   = _ollamaModel;
        s.Llm.VllmEndpoint   = _vllmEndpoint;
        s.Llm.VllmModel      = _vllmModel;
        s.Llm.VllmAllowInsecureTls = _vllmAllowInsecureTls;
        s.Llm.GeminiModel    = _geminiModel;
        s.Llm.ClaudeModel    = _sigmoidModel;
        s.Llm.GeminiApiKey   = _geminiApiKey;
        s.Llm.ClaudeApiKey   = _sigmoidApiKey;

        // 내부 서비스 API 키 저장 (암호화 분기)
        if (!string.IsNullOrEmpty(_ollamaApiKey) && _ollamaApiKey != "(저장됨)")
            s.Llm.OllamaApiKey = CryptoService.EncryptIfEnabled(_ollamaApiKey, s.Llm.EncryptionEnabled);
        if (!string.IsNullOrEmpty(_vllmApiKey) && _vllmApiKey != "(저장됨)")
            s.Llm.VllmApiKey = CryptoService.EncryptIfEnabled(_vllmApiKey, s.Llm.EncryptionEnabled);

        // 활성 서비스의 설정을 기존 호환 필드에도 동기화 (LlmService.cs 호환)
        switch (_llmService)
        {
            case "ollama":
                s.Llm.Endpoint = _ollamaEndpoint;
                s.Llm.Model = _ollamaModel;
                s.Llm.EncryptedApiKey = s.Llm.OllamaApiKey;
                break;
            case "vllm":
                s.Llm.Endpoint = _vllmEndpoint;
                s.Llm.Model = _vllmModel;
                s.Llm.EncryptedApiKey = s.Llm.VllmApiKey;
                break;
            case "gemini":
                s.Llm.ApiKey = _geminiApiKey;
                s.Llm.Model = _geminiModel;
                break;
            case "claude":
            case "sigmoid":
                s.Llm.ApiKey = _sigmoidApiKey;
                s.Llm.Model = _sigmoidModel;
                break;
        }

        // 등록 모델 저장
        s.Llm.RegisteredModels = RegisteredModels
            .Where(rm => !string.IsNullOrWhiteSpace(rm.Alias))
            .Select(rm => new RegisteredModel
            {
                Alias = rm.Alias,
                EncryptedModelName = rm.EncryptedModelName,
                Service = rm.Service,
                Endpoint = rm.Endpoint,
                ApiKey = rm.ApiKey,
                AllowInsecureTls = rm.AllowInsecureTls,
                AuthType = rm.AuthType ?? "bearer",
                Cp4dUrl = rm.Cp4dUrl ?? "",
                Cp4dUsername = rm.Cp4dUsername ?? "",
                Cp4dPassword = rm.Cp4dPassword ?? "",
            })
            .ToList();

        // 프롬프트 템플릿 저장
        s.Llm.PromptTemplates = PromptTemplates
            .Where(pt => !string.IsNullOrWhiteSpace(pt.Name))
            .Select(pt => new PromptTemplate { Name = pt.Name, Content = pt.Content, Icon = pt.Icon })
            .ToList();

        // 인덱스 경로 + 확장자 저장
        s.IndexPaths = IndexPaths.ToList();
        s.IndexExtensions = IndexExtensions.ToList();
        s.IndexSpeed = _indexSpeed;

        // 커스텀 색상 + 모양 저장
        var c = s.Launcher.CustomTheme ??= new CustomThemeColors();
        foreach (var row in ColorRows)
        {
            var prop = typeof(CustomThemeColors).GetProperty(row.Property);
            prop?.SetValue(c, row.Hex);
        }
        c.WindowCornerRadius = _customWindowCornerRadius;
        c.ItemCornerRadius   = _customItemCornerRadius;

        // 빠른 실행 단축키 저장:
        // batch/api/clipboard type은 그대로 유지, app/url/folder는 ViewModel 내용으로 교체
        var otherAliases = s.Aliases
            .Where(a => a.Type is not ("app" or "url" or "folder" or "batch"))
            .ToList();
        s.Aliases = otherAliases
            .Concat(AppShortcuts.Select(sc => new AliasEntry
            {
                Key         = sc.Key,
                Type        = sc.Type,
                Target      = sc.Target,
                Description = string.IsNullOrWhiteSpace(sc.Description) ? null : sc.Description
            }))
            .Concat(BatchCommands.Select(b => new AliasEntry
            {
                Key        = b.Key,
                Type       = "batch",
                Target     = b.Command,
                ShowWindow = b.ShowWindow
            }))
            .ToList();

        // 스니펫 저장
        s.Snippets = Snippets.Select(sn => new SnippetEntry
        {
            Key     = sn.Key,
            Name    = sn.Name,
            Content = sn.Content
        }).ToList();

        // 알림 설정 저장
        s.Reminder.Enabled         = _reminderEnabled;
        s.Reminder.Corner          = _reminderCorner;
        s.Reminder.IntervalMinutes = _reminderIntervalMinutes;
        s.Reminder.DisplaySeconds  = _reminderDisplaySeconds;

        // 캡처 설정 저장
        s.ScreenCapture.Prefix              = string.IsNullOrWhiteSpace(_capPrefix) ? "cap" : _capPrefix.Trim();
        s.ScreenCapture.GlobalHotkeyEnabled = _capGlobalHotkeyEnabled;
        s.ScreenCapture.GlobalHotkey        = string.IsNullOrWhiteSpace(_capGlobalHotkey) ? "PrintScreen" : _capGlobalHotkey.Trim();
        s.ScreenCapture.GlobalHotkeyMode    = _capGlobalMode;
        s.ScreenCapture.ScrollDelayMs       = Math.Max(50, _capScrollDelayMs);

        // 클립보드 히스토리 설정 저장
        s.ClipboardHistory.Enabled  = _clipboardEnabled;
        s.ClipboardHistory.MaxItems = _clipboardMaxItems;

        // 시스템 명령 설정 저장
        var sc = s.SystemCommands;
        sc.ShowLock       = _sysShowLock;
        sc.ShowSleep      = _sysShowSleep;
        sc.ShowRestart    = _sysShowRestart;
        sc.ShowShutdown   = _sysShowShutdown;
        sc.ShowHibernate  = _sysShowHibernate;
        sc.ShowLogout     = _sysShowLogout;
        sc.ShowRecycleBin = _sysShowRecycleBin;

        // 시스템 명령 별칭 저장
        var cmdAliases = new Dictionary<string, List<string>>();
        void SaveAlias(string key, string val)
        {
            var list = ParseAliases(val);
            if (list.Count > 0) cmdAliases[key] = list;
        }
        SaveAlias("lock",      _aliasLock);
        SaveAlias("sleep",     _aliasSleep);
        SaveAlias("restart",   _aliasRestart);
        SaveAlias("shutdown",  _aliasShutdown);
        SaveAlias("hibernate", _aliasHibernate);
        SaveAlias("logout",    _aliasLogout);
        SaveAlias("recycle",   _aliasRecycle);
        sc.CommandAliases = cmdAliases;

        _service.Save();
        SaveCompleted?.Invoke(this, EventArgs.Empty);
    }

    // ─── 스니펫 설정 ──────────────────────────────────────────────────────────
    public ObservableCollection<SnippetRowModel> Snippets { get; } = new();

    private string _newSnippetKey     = "";
    private string _newSnippetName    = "";
    private string _newSnippetContent = "";

    public string NewSnippetKey     { get => _newSnippetKey;     set { _newSnippetKey = value;     OnPropertyChanged(); } }
    public string NewSnippetName    { get => _newSnippetName;    set { _newSnippetName = value;    OnPropertyChanged(); } }
    public string NewSnippetContent { get => _newSnippetContent; set { _newSnippetContent = value; OnPropertyChanged(); } }

    public bool AddSnippet()
    {
        if (string.IsNullOrWhiteSpace(_newSnippetKey) || string.IsNullOrWhiteSpace(_newSnippetContent))
            return false;
        if (Snippets.Any(sn => sn.Key.Equals(_newSnippetKey.Trim(), StringComparison.OrdinalIgnoreCase)))
            return false;

        Snippets.Add(new SnippetRowModel
        {
            Key     = _newSnippetKey.Trim(),
            Name    = _newSnippetName.Trim(),
            Content = _newSnippetContent.Trim()
        });
        NewSnippetKey = ""; NewSnippetName = ""; NewSnippetContent = "";
        return true;
    }

    public void RemoveSnippet(SnippetRowModel row) => Snippets.Remove(row);

    // ─── 클립보드 히스토리 설정 ────────────────────────────────────────────────
    private bool _clipboardEnabled;
    private int  _clipboardMaxItems;

    public bool ClipboardEnabled
    {
        get => _clipboardEnabled;
        set { _clipboardEnabled = value; OnPropertyChanged(); }
    }

    public int ClipboardMaxItems
    {
        get => _clipboardMaxItems;
        set { _clipboardMaxItems = value; OnPropertyChanged(); }
    }

    // ─── 스크린 캡처 설정 ──────────────────────────────────────────────────────
    private string _capPrefix    = "cap";
    private bool   _capGlobalHotkeyEnabled;
    private string _capGlobalHotkey  = "PrintScreen";
    private string _capGlobalMode    = "screen";
    private int    _capScrollDelayMs = 120;

    public string CapPrefix
    {
        get => _capPrefix;
        set { _capPrefix = value; OnPropertyChanged(); }
    }

    public void ResetCapPrefix() => CapPrefix = "cap";

    public bool CapGlobalHotkeyEnabled
    {
        get => _capGlobalHotkeyEnabled;
        set { _capGlobalHotkeyEnabled = value; OnPropertyChanged(); }
    }

    public string CapGlobalHotkey
    {
        get => _capGlobalHotkey;
        set { _capGlobalHotkey = value; OnPropertyChanged(); }
    }

    public string CapGlobalMode
    {
        get => _capGlobalMode;
        set { _capGlobalMode = value; OnPropertyChanged(); }
    }

    public int CapScrollDelayMs
    {
        get => _capScrollDelayMs;
        set { _capScrollDelayMs = value; OnPropertyChanged(); OnPropertyChanged(nameof(CapScrollDelayMsStr)); }
    }

    /// <summary>ComboBox SelectedValue와 string 바인딩 용도</summary>
    public string CapScrollDelayMsStr
    {
        get => _capScrollDelayMs.ToString();
        set { if (int.TryParse(value, out int v)) CapScrollDelayMs = v; }
    }

    public void ResetCapGlobalHotkey()
    {
        CapGlobalHotkey = "PrintScreen";
        CapGlobalMode   = "screen";
    }

    // ─── 잠금 해제 알림 설정 ──────────────────────────────────────────────────
    private bool   _reminderEnabled;
    private string _reminderCorner         = "bottom-right";
    private int    _reminderIntervalMinutes = 60;
    private int    _reminderDisplaySeconds  = 15;

    public List<string> GetReminderCategories() => _service.Settings.Reminder.EnabledCategories;

    public bool ReminderEnabled
    {
        get => _reminderEnabled;
        set { _reminderEnabled = value; OnPropertyChanged(); }
    }

    public string ReminderCorner
    {
        get => _reminderCorner;
        set { _reminderCorner = value; OnPropertyChanged(); }
    }

    public int ReminderIntervalMinutes
    {
        get => _reminderIntervalMinutes;
        set { _reminderIntervalMinutes = value; OnPropertyChanged(); }
    }

    public int ReminderDisplaySeconds
    {
        get => _reminderDisplaySeconds;
        set { _reminderDisplaySeconds = value; OnPropertyChanged(); }
    }

    // ─── 시스템 명령 설정 ──────────────────────────────────────────────────────
    private bool _sysShowLock;
    private bool _sysShowSleep;
    private bool _sysShowRestart;
    private bool _sysShowShutdown;
    private bool _sysShowHibernate;
    private bool _sysShowLogout;
    private bool _sysShowRecycleBin;

    public bool SysShowLock       { get => _sysShowLock;       set { _sysShowLock = value;       OnPropertyChanged(); } }
    public bool SysShowSleep      { get => _sysShowSleep;      set { _sysShowSleep = value;      OnPropertyChanged(); } }
    public bool SysShowRestart    { get => _sysShowRestart;    set { _sysShowRestart = value;    OnPropertyChanged(); } }
    public bool SysShowShutdown   { get => _sysShowShutdown;   set { _sysShowShutdown = value;   OnPropertyChanged(); } }
    public bool SysShowHibernate  { get => _sysShowHibernate;  set { _sysShowHibernate = value;  OnPropertyChanged(); } }
    public bool SysShowLogout     { get => _sysShowLogout;     set { _sysShowLogout = value;     OnPropertyChanged(); } }
    public bool SysShowRecycleBin { get => _sysShowRecycleBin; set { _sysShowRecycleBin = value; OnPropertyChanged(); } }

    // ─── 시스템 명령 별칭 (쉼표 구분 문자열) ───────────────────────────────────
    private string _aliasLock      = "";
    private string _aliasSleep     = "";
    private string _aliasRestart   = "";
    private string _aliasShutdown  = "";
    private string _aliasHibernate = "";
    private string _aliasLogout    = "";
    private string _aliasRecycle   = "";

    public string AliasLock      { get => _aliasLock;      set { _aliasLock = value;      OnPropertyChanged(); } }
    public string AliasSleep     { get => _aliasSleep;     set { _aliasSleep = value;     OnPropertyChanged(); } }
    public string AliasRestart   { get => _aliasRestart;   set { _aliasRestart = value;   OnPropertyChanged(); } }
    public string AliasShutdown  { get => _aliasShutdown;  set { _aliasShutdown = value;  OnPropertyChanged(); } }
    public string AliasHibernate { get => _aliasHibernate; set { _aliasHibernate = value; OnPropertyChanged(); } }
    public string AliasLogout    { get => _aliasLogout;    set { _aliasLogout = value;    OnPropertyChanged(); } }
    public string AliasRecycle   { get => _aliasRecycle;   set { _aliasRecycle = value;   OnPropertyChanged(); } }

    public void ResetSystemCommandAliases()
    {
        AliasLock = ""; AliasSleep = ""; AliasRestart = "";
        AliasShutdown = ""; AliasHibernate = ""; AliasLogout = ""; AliasRecycle = "";
    }

    private static string FormatAliases(Dictionary<string, List<string>> dict, string key)
        => dict.TryGetValue(key, out var list) ? string.Join(", ", list) : "";

    private static List<string> ParseAliases(string input)
        => input.Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
                .Where(s => !string.IsNullOrWhiteSpace(s))
                .ToList();

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? n = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
}

// ─── 프롬프트 템플릿 행 모델 ─────────────────────────────────────────────────────

public class PromptTemplateRow : INotifyPropertyChanged
{
    private string _name = "";
    private string _content = "";
    private string _icon = "\uE8BD";

    public string Name    { get => _name;    set { _name = value;    OnPropertyChanged(); } }
    public string Content { get => _content; set { _content = value; OnPropertyChanged(); OnPropertyChanged(nameof(Preview)); } }
    public string Icon    { get => _icon;    set { _icon = value;    OnPropertyChanged(); } }

    public string Preview => Content.Length > 60
        ? Content[..57].Replace("\n", " ") + "…"
        : Content.Replace("\n", " ");

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? n = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
}

// ─── 등록 모델 행 모델 ──────────────────────────────────────────────────────────

public class RegisteredModelRow : INotifyPropertyChanged
{
    private string _alias = "";
    private string _encryptedModelName = "";
    private string _service = "ollama";
    private string _endpoint = "";
    private string _apiKey = "";
    private bool _allowInsecureTls;

    /// <summary>UI 표시용 별칭</summary>
    public string Alias
    {
        get => _alias;
        set { _alias = value; OnPropertyChanged(); }
    }

    /// <summary>암호화된 실제 모델명 (PortableEncrypt)</summary>
    public string EncryptedModelName
    {
        get => _encryptedModelName;
        set { _encryptedModelName = value; OnPropertyChanged(); OnPropertyChanged(nameof(MaskedModelName)); }
    }

    /// <summary>서비스 타입 (ollama / vllm)</summary>
    public string Service
    {
        get => _service;
        set { _service = value; OnPropertyChanged(); OnPropertyChanged(nameof(ServiceLabel)); }
    }

    /// <summary>이 모델 전용 서버 엔드포인트. 비어있으면 기본 엔드포인트 사용.</summary>
    public string Endpoint
    {
        get => _endpoint;
        set { _endpoint = value; OnPropertyChanged(); OnPropertyChanged(nameof(EndpointDisplay)); }
    }

    /// <summary>이 모델 전용 API 키. 비어있으면 기본 API 키 사용.</summary>
    public string ApiKey
    {
        get => _apiKey;
        set { _apiKey = value; OnPropertyChanged(); }
    }

    /// <summary>이 모델 요청 시 TLS 인증서 검증을 생략합니다.</summary>
    public bool AllowInsecureTls
    {
        get => _allowInsecureTls;
        set { _allowInsecureTls = value; OnPropertyChanged(); }
    }

    // ── CP4D 인증 필드 ──────────────────────────────────────────────────

    private string _authType = "bearer";
    private string _cp4dUrl = "";
    private string _cp4dUsername = "";
    private string _cp4dPassword = "";

    /// <summary>인증 방식. bearer | ibm_iam | cp4d</summary>
    public string AuthType
    {
        get => _authType;
        set { _authType = value; OnPropertyChanged(); OnPropertyChanged(nameof(AuthLabel)); }
    }

    /// <summary>CP4D 서버 URL</summary>
    public string Cp4dUrl
    {
        get => _cp4dUrl;
        set { _cp4dUrl = value; OnPropertyChanged(); }
    }

    /// <summary>CP4D 사용자 이름</summary>
    public string Cp4dUsername
    {
        get => _cp4dUsername;
        set { _cp4dUsername = value; OnPropertyChanged(); }
    }

    /// <summary>CP4D 비밀번호 (암호화 저장)</summary>
    public string Cp4dPassword
    {
        get => _cp4dPassword;
        set { _cp4dPassword = value; OnPropertyChanged(); }
    }

    /// <summary>인증 방식 라벨</summary>
    public string AuthLabel => (_authType ?? "bearer").ToLowerInvariant() switch
    {
        "cp4d" => "CP4D",
        "ibm_iam" => "IBM IAM",
        _ => "Bearer",
    };

    /// <summary>UI에 표시할 엔드포인트 요약</summary>
    public string EndpointDisplay => string.IsNullOrEmpty(_endpoint) ? "(기본 서버)" : _endpoint;

    /// <summary>UI에 표시할 마스킹된 모델명</summary>
    public string MaskedModelName => string.IsNullOrEmpty(_encryptedModelName) ? "(미등록)" : "••••••••";

    /// <summary>서비스 라벨</summary>
    public string ServiceLabel => _service == "vllm" ? "vLLM" : "Ollama";

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? n = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
}

// ─── 스니펫 행 모델 ────────────────────────────────────────────────────────────

public class SnippetRowModel : INotifyPropertyChanged
{
    private string _key     = "";
    private string _name    = "";
    private string _content = "";

    public string Key     { get => _key;     set { _key = value;     OnPropertyChanged(); } }
    public string Name    { get => _name;    set { _name = value;    OnPropertyChanged(); } }
    public string Content { get => _content; set { _content = value; OnPropertyChanged(); } }

    public string Preview => Content.Length > 50
        ? Content[..47].Replace("\n", " ") + "…"
        : Content.Replace("\n", " ");

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? n = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
}