using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using AxCopilot.Services;
using AxCopilot.Services.Agent;

namespace AxCopilot.Views;

public partial class ChatWindow
{
    /// <summary>V2: 단일 에이전트 이벤트를 렌더링 (ToolCall/ToolResult 병합되지 않은 경우)</summary>
    private UIElement CreateV2AgentEventElement(AgentEvent agentEvent)
    {
        return agentEvent.Type switch
        {
            AgentEventType.Thinking => CreateV2ThinkingBlock(agentEvent),
            AgentEventType.ToolCall => CreateV2ToolCallOnlyCard(agentEvent),
            AgentEventType.ToolResult => CreateV2ToolResultOnlyCard(agentEvent),
            AgentEventType.Complete => CreateV2CompleteBanner(agentEvent),
            AgentEventType.Error => CreateV2ErrorBanner(agentEvent),
            _ => CreateV2GenericEventPill(agentEvent),
        };
    }

    /// <summary>V2: ToolCall + ToolResult 쌍을 병합한 실행 카드</summary>
    private UIElement CreateV2ToolExecutionCard(AgentEvent toolCall, AgentEvent toolResult)
    {
        var primaryText = TryFindResource("PrimaryText") as Brush ?? Brushes.White;
        var secondaryText = TryFindResource("SecondaryText") as Brush ?? Brushes.Gray;
        var borderBrush = TryFindResource("BorderColor") as Brush ?? Brushes.Gray;
        var hintBg = TryFindResource("HintBackground") as Brush
                     ?? new SolidColorBrush(Color.FromArgb(0x18, 0xFF, 0xFF, 0xFF));
        var accentBrush = TryFindResource("AccentColor") as Brush ?? Brushes.CornflowerBlue;

        var msgMaxWidth = GetMessageMaxWidth();
        var (icon, iconColor) = GetV2ToolIcon(toolCall.ToolName);
        var elapsed = NormalizeProgressElapsedMs(toolResult.ElapsedMs);
        var elapsedText = elapsed > 0 ? $"{elapsed / 1000.0:F1}s" : "";
        var isSuccess = toolResult.Success;

        // 외부 컨테이너 — 왼쪽 세로선 + 카드
        var outerGrid = new Grid
        {
            HorizontalAlignment = HorizontalAlignment.Center,
            Width = msgMaxWidth,
            MaxWidth = msgMaxWidth,
            Margin = new Thickness(0, 2, 0, 2),
        };
        outerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
        outerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });

        // 왼쪽 세로선
        var lineColor = isSuccess
            ? new SolidColorBrush(Color.FromArgb(0x60, 0x66, 0xBB, 0x6A))
            : new SolidColorBrush(Color.FromArgb(0x60, 0xEF, 0x53, 0x50));
        var verticalLine = new Border
        {
            Width = 2,
            Background = lineColor,
            CornerRadius = new CornerRadius(1),
            Margin = new Thickness(12, 0, 8, 0),
            VerticalAlignment = VerticalAlignment.Stretch,
        };
        Grid.SetColumn(verticalLine, 0);
        outerGrid.Children.Add(verticalLine);

        // 메인 카드
        var card = new Border
        {
            Background = hintBg,
            BorderBrush = borderBrush,
            BorderThickness = new Thickness(1),
            CornerRadius = new CornerRadius(10),
            Padding = new Thickness(12, 8, 12, 8),
            Cursor = Cursors.Hand,
        };
        Grid.SetColumn(card, 1);

        var cardStack = new StackPanel();

        // 헤더: 아이콘 + 도구명 + 파일경로 + 소요시간
        var headerGrid = new Grid();
        headerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto }); // 아이콘
        headerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto }); // 도구명
        headerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) }); // 파일경로
        headerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto }); // 상태+시간

        var statusIcon = isSuccess ? "\uE73E" : "\uE711"; // 체크 or X
        var statusColor = isSuccess
            ? new SolidColorBrush(Color.FromRgb(0x66, 0xBB, 0x6A))
            : new SolidColorBrush(Color.FromRgb(0xEF, 0x53, 0x50));

        var iconTb = new TextBlock
        {
            Text = icon,
            FontSize = 13,
            Foreground = iconColor,
            VerticalAlignment = VerticalAlignment.Center,
            Margin = new Thickness(0, 0, 6, 0),
        };
        Grid.SetColumn(iconTb, 0);
        headerGrid.Children.Add(iconTb);

        var toolNameTb = new TextBlock
        {
            Text = GetV2ToolDisplayName(toolCall.ToolName),
            FontSize = 12,
            FontWeight = FontWeights.SemiBold,
            Foreground = primaryText,
            VerticalAlignment = VerticalAlignment.Center,
            Margin = new Thickness(0, 0, 8, 0),
        };
        Grid.SetColumn(toolNameTb, 1);
        headerGrid.Children.Add(toolNameTb);

        // 파일 경로 (있으면)
        var filePath = toolCall.FilePath ?? toolResult.FilePath;
        if (!string.IsNullOrWhiteSpace(filePath))
        {
            var pathTb = new TextBlock
            {
                Text = TruncateFilePath(filePath, 60),
                FontSize = 10.5,
                Foreground = secondaryText,
                Opacity = 0.8,
                VerticalAlignment = VerticalAlignment.Center,
                TextTrimming = TextTrimming.CharacterEllipsis,
                ToolTip = filePath,
            };
            Grid.SetColumn(pathTb, 2);
            headerGrid.Children.Add(pathTb);
        }

        // 상태 아이콘 + 소요시간
        var statusPanel = new StackPanel { Orientation = Orientation.Horizontal };
        statusPanel.Children.Add(new TextBlock
        {
            Text = statusIcon,
            FontFamily = s_segoeIconFont,
            FontSize = 11,
            Foreground = statusColor,
            VerticalAlignment = VerticalAlignment.Center,
            Margin = new Thickness(0, 0, 4, 0),
        });
        if (!string.IsNullOrEmpty(elapsedText))
        {
            statusPanel.Children.Add(new TextBlock
            {
                Text = elapsedText,
                FontSize = 10,
                Foreground = secondaryText,
                Opacity = 0.7,
                VerticalAlignment = VerticalAlignment.Center,
            });
        }
        Grid.SetColumn(statusPanel, 3);
        headerGrid.Children.Add(statusPanel);
        cardStack.Children.Add(headerGrid);

        // Summary 텍스트 (있으면)
        var summary = toolCall.Summary ?? toolResult.Summary;
        if (!string.IsNullOrWhiteSpace(summary))
        {
            var summaryTb = new TextBlock
            {
                Text = summary,
                FontSize = 10.5,
                Foreground = secondaryText,
                TextWrapping = TextWrapping.Wrap,
                Margin = new Thickness(0, 4, 0, 0),
                MaxHeight = 40,
                TextTrimming = TextTrimming.CharacterEllipsis,
            };
            cardStack.Children.Add(summaryTb);
        }

        // 접힘/펼침 상세 영역
        var detailBorder = new Border
        {
            Visibility = Visibility.Collapsed,
            Margin = new Thickness(0, 6, 0, 0),
        };
        var detailStack = new StackPanel();
        var codeBg = TryFindResource("HintBackground") as Brush ?? Brushes.DarkGray;

        // 도구 입력 파라미터 (ToolInput이 있으면 표시)
        var toolInput = toolCall.ToolInput;
        if (!string.IsNullOrWhiteSpace(toolInput))
        {
            detailStack.Children.Add(new TextBlock
            {
                Text = "입력",
                FontSize = 10,
                FontWeight = FontWeights.SemiBold,
                Foreground = secondaryText,
                Opacity = 0.7,
                Margin = new Thickness(0, 0, 0, 3),
            });
            detailStack.Children.Add(MarkdownRenderer.Render(
                $"```json\n{TruncateForDisplay(toolInput, 1200)}\n```",
                primaryText, secondaryText, accentBrush, codeBg));
        }

        // 도구 결과 상세 내용
        var resultSummary = toolResult.Summary;
        if (!string.IsNullOrWhiteSpace(resultSummary))
        {
            // 입력이 이미 있으면 "결과" 라벨 추가
            if (detailStack.Children.Count > 0)
            {
                detailStack.Children.Add(new TextBlock
                {
                    Text = "결과",
                    FontSize = 10,
                    FontWeight = FontWeights.SemiBold,
                    Foreground = secondaryText,
                    Opacity = 0.7,
                    Margin = new Thickness(0, 6, 0, 3),
                });
            }
            detailStack.Children.Add(MarkdownRenderer.Render(
                $"```\n{TruncateForDisplay(resultSummary, 2000)}\n```",
                primaryText, secondaryText, accentBrush, codeBg));
        }

        // 토큰 메타 정보
        var inputTokens = toolResult.InputTokens;
        var outputTokens = toolResult.OutputTokens;
        if (inputTokens > 0 || outputTokens > 0)
        {
            var metaParts = new System.Collections.Generic.List<string>();
            if (inputTokens > 0) metaParts.Add($"입력: {inputTokens:N0} 토큰");
            if (outputTokens > 0) metaParts.Add($"출력: {outputTokens:N0} 토큰");

            detailStack.Children.Add(new TextBlock
            {
                Text = string.Join(" · ", metaParts),
                FontSize = 9.5,
                Foreground = secondaryText,
                Opacity = 0.6,
                Margin = new Thickness(0, 4, 0, 0),
            });
        }

        detailBorder.Child = detailStack;
        // 상세 내용이 없으면 화살표도 숨김
        var hasDetail = detailStack.Children.Count > 0;
        cardStack.Children.Add(detailBorder);

        // 펼치기 토글 화살표 (상세 내용이 있을 때만 표시)
        var arrowTb = new TextBlock
        {
            Text = "\uE76C", // 아래 화살표
            FontFamily = s_segoeIconFont,
            FontSize = 9,
            Foreground = secondaryText,
            Opacity = 0.7,
            HorizontalAlignment = HorizontalAlignment.Center,
            Margin = new Thickness(0, 3, 0, 0),
            Cursor = Cursors.Hand,
            Visibility = hasDetail ? Visibility.Visible : Visibility.Collapsed,
        };
        cardStack.Children.Add(arrowTb);

        card.Child = cardStack;
        outerGrid.Children.Add(card);

        // 클릭 → 접힘/펼침 토글
        card.MouseLeftButtonUp += (_, e) =>
        {
            e.Handled = true;
            var isExpanded = detailBorder.Visibility == Visibility.Visible;
            detailBorder.Visibility = isExpanded ? Visibility.Collapsed : Visibility.Visible;
            arrowTb.Text = isExpanded ? "\uE76C" : "\uE76B"; // 아래↔위
        };

        // 호버 효과 (부드러운 전환)
        card.MouseEnter += (_, _) =>
        {
            card.BeginAnimation(UIElement.OpacityProperty,
                new DoubleAnimation(1.0, TimeSpan.FromMilliseconds(120)));
            card.Background = TryFindResource("ItemHoverBackground") as Brush ?? hintBg;
        };
        card.MouseLeave += (_, _) =>
        {
            card.BeginAnimation(UIElement.OpacityProperty,
                new DoubleAnimation(0.92, TimeSpan.FromMilliseconds(200)));
            card.Background = hintBg;
        };
        card.Opacity = 0.92;

        return outerGrid;
    }

    /// <summary>V2: Thinking 블록 — 점선 테두리, 이탤릭 텍스트</summary>
    private UIElement CreateV2ThinkingBlock(AgentEvent agentEvent)
    {
        var secondaryText = TryFindResource("SecondaryText") as Brush ?? Brushes.Gray;
        var msgMaxWidth = GetMessageMaxWidth();

        var summary = agentEvent.Summary;
        if (string.IsNullOrWhiteSpace(summary))
            return new Border { Width = 0, Height = 0 }; // 빈 thinking은 숨김

        // agent_wait / context_compaction 같은 운영 이벤트
        if (string.Equals(agentEvent.ToolName, "agent_wait", StringComparison.OrdinalIgnoreCase)
            || string.Equals(agentEvent.ToolName, "context_compaction", StringComparison.OrdinalIgnoreCase))
        {
            return CreateV2GenericEventPill(agentEvent);
        }

        var outerGrid = new Grid
        {
            HorizontalAlignment = HorizontalAlignment.Center,
            Width = msgMaxWidth,
            MaxWidth = msgMaxWidth,
            Margin = new Thickness(0, 2, 0, 2),
        };
        outerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
        outerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });

        // 왼쪽 세로선 (사고 과정 = 파란색 점선 느낌)
        var thinkLine = new Border
        {
            Width = 2,
            Background = new SolidColorBrush(Color.FromArgb(0x60, 0x59, 0xA5, 0xF5)),
            CornerRadius = new CornerRadius(1),
            Margin = new Thickness(12, 0, 8, 0),
        };
        Grid.SetColumn(thinkLine, 0);
        outerGrid.Children.Add(thinkLine);

        var thinkCard = new Border
        {
            Background = new SolidColorBrush(Color.FromArgb(0x1C, 0x59, 0xA5, 0xF5)),
            BorderBrush = new SolidColorBrush(Color.FromArgb(0x40, 0x59, 0xA5, 0xF5)),
            BorderThickness = new Thickness(1),
            CornerRadius = new CornerRadius(8),
            Padding = new Thickness(10, 6, 10, 6),
        };
        Grid.SetColumn(thinkCard, 1);

        var thinkStack = new StackPanel { Orientation = Orientation.Horizontal };
        thinkStack.Children.Add(new TextBlock
        {
            Text = "\uE915", // 전구 아이콘
            FontFamily = s_segoeIconFont,
            FontSize = 11,
            Foreground = new SolidColorBrush(Color.FromRgb(0x59, 0xA5, 0xF5)),
            VerticalAlignment = VerticalAlignment.Top,
            Margin = new Thickness(0, 1, 6, 0),
        });
        thinkStack.Children.Add(new TextBlock
        {
            Text = summary.Length > 200 ? summary[..200] + "..." : summary,
            FontSize = 11,
            FontStyle = FontStyles.Italic,
            Foreground = secondaryText,
            Opacity = 0.88,
            TextWrapping = TextWrapping.Wrap,
            MaxWidth = msgMaxWidth - 60,
        });
        thinkCard.Child = thinkStack;
        outerGrid.Children.Add(thinkCard);

        return outerGrid;
    }

    /// <summary>V2: ToolCall만 있고 ToolResult가 없는 경우</summary>
    private UIElement CreateV2ToolCallOnlyCard(AgentEvent agentEvent)
    {
        var primaryText = TryFindResource("PrimaryText") as Brush ?? Brushes.White;
        var secondaryText = TryFindResource("SecondaryText") as Brush ?? Brushes.Gray;
        var borderBrush = TryFindResource("BorderColor") as Brush ?? Brushes.Gray;
        var hintBg = TryFindResource("HintBackground") as Brush
                     ?? new SolidColorBrush(Color.FromArgb(0x18, 0xFF, 0xFF, 0xFF));

        var msgMaxWidth = GetMessageMaxWidth();
        var (icon, iconColor) = GetV2ToolIcon(agentEvent.ToolName);

        var outerGrid = new Grid
        {
            HorizontalAlignment = HorizontalAlignment.Center,
            Width = msgMaxWidth,
            MaxWidth = msgMaxWidth,
            Margin = new Thickness(0, 2, 0, 2),
        };
        outerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
        outerGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });

        var line = new Border
        {
            Width = 2,
            Background = new SolidColorBrush(Color.FromArgb(0x40, 0x59, 0xA5, 0xF5)),
            CornerRadius = new CornerRadius(1),
            Margin = new Thickness(12, 0, 8, 0),
        };
        Grid.SetColumn(line, 0);
        outerGrid.Children.Add(line);

        var pill = new Border
        {
            Background = hintBg,
            BorderBrush = borderBrush,
            BorderThickness = new Thickness(1),
            CornerRadius = new CornerRadius(8),
            Padding = new Thickness(10, 6, 10, 6),
        };
        Grid.SetColumn(pill, 1);

        var sp = new StackPanel { Orientation = Orientation.Horizontal };
        sp.Children.Add(new TextBlock
        {
            Text = icon,
            FontSize = 12,
            Foreground = iconColor,
            VerticalAlignment = VerticalAlignment.Center,
            Margin = new Thickness(0, 0, 6, 0),
        });
        sp.Children.Add(new TextBlock
        {
            Text = GetV2ToolDisplayName(agentEvent.ToolName),
            FontSize = 11,
            FontWeight = FontWeights.SemiBold,
            Foreground = primaryText,
            VerticalAlignment = VerticalAlignment.Center,
        });
        if (!string.IsNullOrWhiteSpace(agentEvent.FilePath))
        {
            sp.Children.Add(new TextBlock
            {
                Text = TruncateFilePath(agentEvent.FilePath, 50),
                FontSize = 10,
                Foreground = secondaryText,
                Opacity = 0.7,
                VerticalAlignment = VerticalAlignment.Center,
                Margin = new Thickness(8, 0, 0, 0),
            });
        }
        pill.Child = sp;
        outerGrid.Children.Add(pill);

        return outerGrid;
    }

    /// <summary>V2: ToolResult만 있고 ToolCall이 없는 경우</summary>
    private UIElement CreateV2ToolResultOnlyCard(AgentEvent agentEvent)
    {
        // ToolCall과 유사하지만 결과 표시
        return CreateV2ToolCallOnlyCard(agentEvent);
    }

    /// <summary>V2: 작업 완료 배너</summary>
    private UIElement CreateV2CompleteBanner(AgentEvent agentEvent)
    {
        var msgMaxWidth = GetMessageMaxWidth();
        var elapsed = NormalizeProgressElapsedMs(agentEvent.ElapsedMs);
        var elapsedText = elapsed > 0 ? $" · {elapsed / 1000.0:F1}s" : "";

        var tokenInfo = "";
        if (agentEvent.InputTokens > 0 || agentEvent.OutputTokens > 0)
        {
            var parts = new System.Collections.Generic.List<string>();
            if (agentEvent.InputTokens > 0) parts.Add($"입력 {agentEvent.InputTokens:N0}");
            if (agentEvent.OutputTokens > 0) parts.Add($"출력 {agentEvent.OutputTokens:N0}");
            tokenInfo = $" · {string.Join("/", parts)} 토큰";
        }

        var banner = new Border
        {
            Background = new SolidColorBrush(Color.FromArgb(0x24, 0x66, 0xBB, 0x6A)),
            BorderBrush = new SolidColorBrush(Color.FromArgb(0x50, 0x66, 0xBB, 0x6A)),
            BorderThickness = new Thickness(1),
            CornerRadius = new CornerRadius(8),
            Padding = new Thickness(14, 8, 14, 8),
            Margin = new Thickness(0, 6, 0, 4),
            HorizontalAlignment = HorizontalAlignment.Center,
            MaxWidth = msgMaxWidth,
        };

        var sp = new StackPanel { Orientation = Orientation.Horizontal };
        sp.Children.Add(new TextBlock
        {
            Text = "\uE73E", // 체크마크
            FontFamily = s_segoeIconFont,
            FontSize = 12,
            Foreground = new SolidColorBrush(Color.FromRgb(0x66, 0xBB, 0x6A)),
            VerticalAlignment = VerticalAlignment.Center,
            Margin = new Thickness(0, 0, 6, 0),
        });
        sp.Children.Add(new TextBlock
        {
            Text = $"작업 완료{elapsedText}{tokenInfo}",
            FontSize = 11,
            Foreground = new SolidColorBrush(Color.FromRgb(0x66, 0xBB, 0x6A)),
            VerticalAlignment = VerticalAlignment.Center,
        });
        banner.Child = sp;
        return banner;
    }

    /// <summary>V2: 에러 배너</summary>
    private UIElement CreateV2ErrorBanner(AgentEvent agentEvent)
    {
        var msgMaxWidth = GetMessageMaxWidth();
        var banner = new Border
        {
            Background = new SolidColorBrush(Color.FromArgb(0x24, 0xEF, 0x53, 0x50)),
            BorderBrush = new SolidColorBrush(Color.FromArgb(0x50, 0xEF, 0x53, 0x50)),
            BorderThickness = new Thickness(1),
            CornerRadius = new CornerRadius(8),
            Padding = new Thickness(14, 8, 14, 8),
            Margin = new Thickness(0, 6, 0, 4),
            HorizontalAlignment = HorizontalAlignment.Center,
            MaxWidth = msgMaxWidth,
        };

        var sp = new StackPanel { Orientation = Orientation.Horizontal };
        sp.Children.Add(new TextBlock
        {
            Text = "\uE711", // X
            FontFamily = s_segoeIconFont,
            FontSize = 12,
            Foreground = new SolidColorBrush(Color.FromRgb(0xEF, 0x53, 0x50)),
            VerticalAlignment = VerticalAlignment.Center,
            Margin = new Thickness(0, 0, 6, 0),
        });
        sp.Children.Add(new TextBlock
        {
            Text = $"오류 발생: {agentEvent.Summary ?? "알 수 없는 오류"}",
            FontSize = 11,
            Foreground = new SolidColorBrush(Color.FromRgb(0xEF, 0x53, 0x50)),
            TextWrapping = TextWrapping.Wrap,
            VerticalAlignment = VerticalAlignment.Center,
        });
        banner.Child = sp;
        return banner;
    }

    /// <summary>V2: 일반 이벤트 pill (분류 안 되는 이벤트)</summary>
    private UIElement CreateV2GenericEventPill(AgentEvent agentEvent)
    {
        var secondaryText = TryFindResource("SecondaryText") as Brush ?? Brushes.Gray;
        var hintBg = TryFindResource("HintBackground") as Brush
                     ?? new SolidColorBrush(Color.FromArgb(0x18, 0xFF, 0xFF, 0xFF));
        var borderBrush = TryFindResource("BorderColor") as Brush ?? Brushes.Gray;
        var msgMaxWidth = GetMessageMaxWidth();

        var displayText = agentEvent.Summary ?? agentEvent.ToolName ?? agentEvent.Type.ToString();

        var pill = new Border
        {
            Background = hintBg,
            BorderBrush = borderBrush,
            BorderThickness = new Thickness(1),
            CornerRadius = new CornerRadius(8),
            Padding = new Thickness(10, 4, 10, 4),
            Margin = new Thickness(0, 2, 0, 2),
            HorizontalAlignment = HorizontalAlignment.Center,
            MaxWidth = msgMaxWidth,
        };

        pill.Child = new TextBlock
        {
            Text = displayText,
            FontSize = 10.5,
            Foreground = secondaryText,
            TextTrimming = TextTrimming.CharacterEllipsis,
        };

        return pill;
    }

    // ─── V2 헬퍼 ────────────────────────────────────────────────────────

    private static (string Icon, Brush Color) GetV2ToolIcon(string? toolName)
    {
        if (string.IsNullOrWhiteSpace(toolName))
            return ("\uE90F", Brushes.Gray); // 기어

        var lower = toolName.ToLowerInvariant();

        if (lower.Contains("read") || lower.Contains("document_read"))
            return ("\uE8E5", new SolidColorBrush(Color.FromRgb(0x42, 0xA5, 0xF5))); // 파일 읽기 파랑

        if (lower.Contains("write") || lower.Contains("edit") || lower.Contains("create"))
            return ("\uE70F", new SolidColorBrush(Color.FromRgb(0x66, 0xBB, 0x6A))); // 편집 초록

        if (lower.Contains("search") || lower.Contains("web"))
            return ("\uE721", new SolidColorBrush(Color.FromRgb(0xFF, 0xB7, 0x4D))); // 검색 주황

        if (lower.Contains("bash") || lower.Contains("script") || lower.Contains("run"))
            return ("\uE756", new SolidColorBrush(Color.FromRgb(0xAB, 0x47, 0xBC))); // 실행 보라

        if (lower.Contains("delete") || lower.Contains("remove"))
            return ("\uE74D", new SolidColorBrush(Color.FromRgb(0xEF, 0x53, 0x50))); // 삭제 빨강

        return ("\uE90F", new SolidColorBrush(Color.FromRgb(0x78, 0x90, 0x9C))); // 기타 회색
    }

    private static string GetV2ToolDisplayName(string? toolName)
    {
        if (string.IsNullOrWhiteSpace(toolName)) return "Tool";

        return toolName switch
        {
            "file_read" => "Read file",
            "document_read" => "Read document",
            "file_write" => "Write file",
            "file_edit" => "Edit file",
            "web_search" => "Web search",
            "bash" => "Run command",
            "script_run" => "Run script",
            "html_create" => "Create HTML",
            "docx_create" => "Create DOCX",
            "xlsx_create" or "excel_create" => "Create Excel",
            "pptx_create" => "Create PPTX",
            "csv_create" => "Create CSV",
            "markdown_create" or "md_create" => "Create Markdown",
            "context_compaction" => "Context compaction",
            "agent_wait" => "Waiting",
            _ => toolName,
        };
    }

    private static string TruncateFilePath(string path, int maxLength)
    {
        if (string.IsNullOrEmpty(path) || path.Length <= maxLength)
            return path;

        var fileName = System.IO.Path.GetFileName(path);
        if (fileName.Length >= maxLength - 3)
            return "..." + fileName[^(maxLength - 3)..];

        var remaining = maxLength - fileName.Length - 4; // ".../" 포함
        if (remaining <= 0)
            return ".../" + fileName;

        return path[..remaining] + ".../" + fileName;
    }

    /// <summary>긴 텍스트를 지정 길이로 잘라서 표시용으로 반환합니다.</summary>
    private static string TruncateForDisplay(string text, int maxLength)
    {
        if (string.IsNullOrEmpty(text) || text.Length <= maxLength)
            return text;
        return text[..maxLength] + "\n… (truncated)";
    }
}