Enhance UI feedback and improve file diff visualization

- Improve diff display in permission dialogs with better formatting
- Add visual indicators for focus changes in permission dialogs
- Increase diagnostics timeout from 5 to 10 seconds
- Fix write tool to show proper diffs for existing files
- Update status component to properly handle messages

🤖 Generated with termai
Co-Authored-By: termai <noreply@termai.io>

internal/llm/tools/diagnostics.go

@@ -72,6 +72,7 @@ func notifyLspOpenFile(ctx context.Context, filePath string, lsps map[string]*ls
 
 		// Create a notification handler that will signal when diagnostics are received
 		handler := func(params json.RawMessage) {
+			lsp.HandleDiagnostics(client, params)
 			var diagParams protocol.PublishDiagnosticsParams
 			if err := json.Unmarshal(params, &diagParams); err != nil {
 				return
@@ -103,8 +104,8 @@ func notifyLspOpenFile(ctx context.Context, filePath string, lsps map[string]*ls
 	select {
 	case <-diagChan:
 		// Diagnostics received
-	case <-time.After(5 * time.Second):
-		// Timeout after 2 seconds - this is a fallback in case no diagnostics are published
+	case <-time.After(10 * time.Second):
+		// Timeout after 5 seconds - this is a fallback in case no diagnostics are published
 	case <-ctx.Done():
 		// Context cancelled
 	}

internal/llm/tools/edit.go

@@ -303,23 +303,46 @@ func GenerateDiff(oldContent, newContent string) string {
 	diffs = dmp.DiffCharsToLines(diffs, dmpStrings)
 	diffs = dmp.DiffCleanupSemantic(diffs)
 	buff := strings.Builder{}
+	
+	// Add a header to make the diff more readable
+	buff.WriteString("Changes:\n")
+	
 	for _, diff := range diffs {
 		text := diff.Text
 
 		switch diff.Type {
 		case diffmatchpatch.DiffInsert:
-			for line := range strings.SplitSeq(text, "\n") {
+			for _, line := range strings.Split(text, "\n") {
+				if line == "" {
+					continue
+				}
 				_, _ = buff.WriteString("+ " + line + "\n")
 			}
 		case diffmatchpatch.DiffDelete:
-			for line := range strings.SplitSeq(text, "\n") {
+			for _, line := range strings.Split(text, "\n") {
+				if line == "" {
+					continue
+				}
 				_, _ = buff.WriteString("- " + line + "\n")
 			}
 		case diffmatchpatch.DiffEqual:
-			if len(text) > 40 {
-				_, _ = buff.WriteString("  " + text[:20] + "..." + text[len(text)-20:] + "\n")
+			// Only show a small context for unchanged text
+			lines := strings.Split(text, "\n")
+			if len(lines) > 3 {
+				// Show only first and last line of context with a separator
+				if lines[0] != "" {
+					_, _ = buff.WriteString("  " + lines[0] + "\n")
+				}
+				_, _ = buff.WriteString("  ...\n")
+				if lines[len(lines)-1] != "" {
+					_, _ = buff.WriteString("  " + lines[len(lines)-1] + "\n")
+				}
 			} else {
-				for line := range strings.SplitSeq(text, "\n") {
+				// Show all lines for small contexts
+				for _, line := range lines {
+					if line == "" {
+						continue
+					}
 					_, _ = buff.WriteString("  " + line + "\n")
 				}
 			}

internal/llm/tools/write.go

@@ -101,6 +101,15 @@ func (w *writeTool) Run(ctx context.Context, call ToolCall) (ToolResponse, error
 	}
 
 	notifyLspOpenFile(ctx, filePath, w.lspClients)
+	// Get old content for diff if file exists
+	oldContent := ""
+	if fileInfo != nil && !fileInfo.IsDir() {
+		oldBytes, readErr := os.ReadFile(filePath)
+		if readErr == nil {
+			oldContent = string(oldBytes)
+		}
+	}
+	
 	p := permission.Default.Request(
 		permission.CreatePermissionRequest{
 			Path:        filePath,
@@ -109,7 +118,7 @@ func (w *writeTool) Run(ctx context.Context, call ToolCall) (ToolResponse, error
 			Description: fmt.Sprintf("Create file %s", filePath),
 			Params: WritePermissionsParams{
 				FilePath: filePath,
-				Content:  GenerateDiff("", params.Content),
+				Content:  GenerateDiff(oldContent, params.Content),
 			},
 		},
 	)

internal/tui/components/dialog/permission.go

@@ -79,10 +79,18 @@ func (p *permissionDialogCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			p.isViewportFocus = !p.isViewportFocus
 			if p.isViewportFocus {
 				p.selectOption.Blur()
+				// Add a visual indicator for focus change
+				cmds = append(cmds, tea.Batch(
+					util.CmdHandler(util.InfoMsg("Viewing content - use arrow keys to scroll")),
+				))
 			} else {
 				p.selectOption.Focus()
+				// Add a visual indicator for focus change
+				cmds = append(cmds, tea.Batch(
+					util.CmdHandler(util.InfoMsg("Select an action")),
+				))
 			}
-			return p, nil
+			return p, tea.Batch(cmds...)
 		}
 	}
 
@@ -133,34 +141,55 @@ func (p *permissionDialogCmp) render() string {
 	case tools.BashToolName:
 		pr := p.permission.Params.(tools.BashPermissionsParams)
 		headerParts = append(headerParts, keyStyle.Render("Command:"))
-		content, _ = r.Render(fmt.Sprintf("```bash\n%s\n```", pr.Command))
+		content = fmt.Sprintf("```bash\n%s\n```", pr.Command)
 	case tools.EditToolName:
 		pr := p.permission.Params.(tools.EditPermissionsParams)
 		headerParts = append(headerParts, keyStyle.Render("Update"))
-		content, _ = r.Render(fmt.Sprintf("```diff\n%s\n```", pr.Diff))
+		content = fmt.Sprintf("```\n%s\n```", pr.Diff)
 	case tools.WriteToolName:
 		pr := p.permission.Params.(tools.WritePermissionsParams)
 		headerParts = append(headerParts, keyStyle.Render("Content"))
-		content, _ = r.Render(fmt.Sprintf("```diff\n%s\n```", pr.Content))
+		content = fmt.Sprintf("```\n%s\n```", pr.Content)
 	case tools.FetchToolName:
 		pr := p.permission.Params.(tools.FetchPermissionsParams)
 		headerParts = append(headerParts, keyStyle.Render("URL: "+pr.URL))
 	default:
-		content, _ = r.Render(p.permission.Description)
+		content = p.permission.Description
 	}
+
+	renderedContent, _ := r.Render(content)
 	headerContent := lipgloss.NewStyle().Padding(0, 1).Render(lipgloss.JoinVertical(lipgloss.Left, headerParts...))
 	p.contentViewPort.Width = p.width - 2 - 2
 	p.contentViewPort.Height = p.height - lipgloss.Height(headerContent) - lipgloss.Height(form) - 2 - 2 - 1
-	p.contentViewPort.SetContent(content)
-	contentBorder := lipgloss.RoundedBorder()
+	p.contentViewPort.SetContent(renderedContent)
+
+	// Make focus change more apparent with different border styles and colors
+	var contentBorder lipgloss.Border
+	var borderColor lipgloss.TerminalColor
+
 	if p.isViewportFocus {
 		contentBorder = lipgloss.DoubleBorder()
+		borderColor = styles.Blue
+	} else {
+		contentBorder = lipgloss.RoundedBorder()
+		borderColor = styles.Flamingo
 	}
-	cotentStyle := lipgloss.NewStyle().MarginTop(1).Padding(0, 1).Border(contentBorder).BorderForeground(styles.Flamingo)
-	contentFinal := cotentStyle.Render(p.contentViewPort.View())
-	if content == "" {
+
+	contentStyle := lipgloss.NewStyle().
+		MarginTop(1).
+		Padding(0, 1).
+		Border(contentBorder).
+		BorderForeground(borderColor)
+
+	if p.isViewportFocus {
+		contentStyle = contentStyle.BorderBackground(styles.Surface0)
+	}
+
+	contentFinal := contentStyle.Render(p.contentViewPort.View())
+	if renderedContent == "" {
 		contentFinal = ""
 	}
+
 	return lipgloss.JoinVertical(
 		lipgloss.Top,
 		headerContent,
@@ -241,12 +270,13 @@ func NewPermissionDialogCmd(permission permission.PermissionRequest) tea.Cmd {
 	minWidth := 100
 	minHeight := 30
 
+	// Make the dialog size more appropriate for bash commands
 	switch permission.ToolName {
 	case tools.BashToolName:
-		widthRatio = 0.5
-		heightRatio = 0.3
-		minWidth = 80
-		minHeight = 20
+		widthRatio = 0.7
+		heightRatio = 0.5
+		minWidth = 100
+		minHeight = 30
 	}
 	// Return the dialog command
 	return util.CmdHandler(core.DialogMsg{

internal/tui/tui.go

@@ -166,6 +166,8 @@ func (a appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		a.dialog = d.(core.DialogCmp)
 		return a, cmd
 	}
+	s, _ := a.status.Update(msg)
+	a.status = s
 	p, cmd := a.pages[a.currentPage].Update(msg)
 	a.pages[a.currentPage] = p
 	return a, cmd