feat(tui): file viewer, select messages

1 files changed, 15 insertions, 44 deletions

diff --git a/packages/tui/internal/components/diff/diff.go b/packages/tui/internal/components/diff/diff.go
index 3d0e41fc3..02c2c31e9 100644
--- a/packages/tui/internal/components/diff/diff.go
+++ b/packages/tui/internal/components/diff/diff.go
@@ -73,44 +73,6 @@ type linePair struct {
 	right *DiffLine
 }
 
-// -------------------------------------------------------------------------
-// Side-by-Side Configuration
-// -------------------------------------------------------------------------
-
-// SideBySideConfig configures the rendering of side-by-side diffs
-type SideBySideConfig struct {
-	TotalWidth int
-}
-
-// SideBySideOption modifies a SideBySideConfig
-type SideBySideOption func(*SideBySideConfig)
-
-// NewSideBySideConfig creates a SideBySideConfig with default values
-func NewSideBySideConfig(opts ...SideBySideOption) SideBySideConfig {
-	config := SideBySideConfig{
-		TotalWidth: 160, // Default width for side-by-side view
-	}
-
-	for _, opt := range opts {
-		opt(&config)
-	}
-
-	return config
-}
-
-// WithTotalWidth sets the total width for side-by-side view
-func WithTotalWidth(width int) SideBySideOption {
-	return func(s *SideBySideConfig) {
-		if width > 0 {
-			s.TotalWidth = width
-		}
-	}
-}
-
-// -------------------------------------------------------------------------
-// Unified Configuration
-// -------------------------------------------------------------------------
-
 // UnifiedConfig configures the rendering of unified diffs
 type UnifiedConfig struct {
 	Width int
@@ -122,13 +84,22 @@ type UnifiedOption func(*UnifiedConfig)
 // NewUnifiedConfig creates a UnifiedConfig with default values
 func NewUnifiedConfig(opts ...UnifiedOption) UnifiedConfig {
 	config := UnifiedConfig{
-		Width: 80, // Default width for unified view
+		Width: 80,
 	}
-
 	for _, opt := range opts {
 		opt(&config)
 	}
+	return config
+}
 
+// NewSideBySideConfig creates a SideBySideConfig with default values
+func NewSideBySideConfig(opts ...UnifiedOption) UnifiedConfig {
+	config := UnifiedConfig{
+		Width: 160,
+	}
+	for _, opt := range opts {
+		opt(&config)
+	}
 	return config
 }
 
@@ -907,7 +878,7 @@ func RenderUnifiedHunk(fileName string, h Hunk, opts ...UnifiedOption) string {
 }
 
 // RenderSideBySideHunk formats a hunk for side-by-side display
-func RenderSideBySideHunk(fileName string, h Hunk, opts ...SideBySideOption) string {
+func RenderSideBySideHunk(fileName string, h Hunk, opts ...UnifiedOption) string {
 	// Apply options to create the configuration
 	config := NewSideBySideConfig(opts...)
 
@@ -922,10 +893,10 @@ func RenderSideBySideHunk(fileName string, h Hunk, opts ...SideBySideOption) str
 	pairs := pairLines(hunkCopy.Lines)
 
 	// Calculate column width
-	colWidth := config.TotalWidth / 2
+	colWidth := config.Width / 2
 
 	leftWidth := colWidth
-	rightWidth := config.TotalWidth - colWidth
+	rightWidth := config.Width - colWidth
 	var sb strings.Builder
 
 	util.WriteStringsPar(&sb, pairs, func(p linePair) string {
@@ -963,7 +934,7 @@ func FormatUnifiedDiff(filename string, diffText string, opts ...UnifiedOption)
 }
 
 // FormatDiff creates a side-by-side formatted view of a diff
-func FormatDiff(filename string, diffText string, opts ...SideBySideOption) (string, error) {
+func FormatDiff(filename string, diffText string, opts ...UnifiedOption) (string, error) {
 	diffResult, err := ParseUnifiedDiff(diffText)
 	if err != nil {
 		return "", err