Add text selection and copy capability to terminal UI

internal/tui/components/search.go

@@ -1,6 +1,7 @@
 package components
 
 import (
+	"strconv"
 	"strings"
 
 	"github.com/charmbracelet/bubbles/textinput"
@@ -263,7 +264,7 @@ func (m *SearchModel) HighlightMatches(value string) string {
 		Bold(true)
 
 	before := value[:index]
-	match := value[index+len(query)]
+	match := value[index : index+len(query)]
 	after := value[index+len(query):]
 
 	return lipgloss.JoinHorizontal(

internal/tui/screens/detail.go

@@ -152,7 +152,9 @@ func (s *DetailScreen) renderContent() string {
 
 	statusText := s.status
 	if s.status == wireguard.StatusConnected {
-		statusText = theme.StyleSuccess.Bold(true).Render("● " + s.status)
+		duration := time.Since(s.lastHandshake)
+		quality := wireguard.CalculateQuality(duration)
+		statusText = theme.StyleSuccess.Bold(true).Render("● " + s.status + " (" + quality + ")")
 	} else {
 		statusText = theme.StyleError.Bold(true).Render("● " + s.status)
 	}

internal/tui/screens/help.go

@@ -41,7 +41,6 @@ func (s *HelpScreen) View() string {
 	// Breadcrumb: Help
 	breadcrumb := components.RenderBreadcrumb([]components.BreadcrumbItem{{Label: "Help", ID: "help"}})
 
-
 	// Styles
 	borderStyle := lipgloss.NewStyle().
 		BorderStyle(lipgloss.RoundedBorder()).
@@ -90,6 +89,11 @@ func (s *HelpScreen) View() string {
 		keyStyle.Render("/") + descStyle.Render("Search") + "\n" +
 		keyStyle.Render("q") + descStyle.Render("Quit")
 
+	copyGroup := categoryStyle.Render("Text Selection & Copy") + "\n" +
+		keyStyle.Render("SHIFT+drag") + descStyle.Render("Select text") + "\n" +
+		keyStyle.Render("Ctrl+Shift+C") + descStyle.Render("Copy (Linux)") + "\n" +
+		keyStyle.Render("Cmd+C") + descStyle.Render("Copy (macOS)")
+
 	// Two-column layout
 	leftColumn := lipgloss.JoinVertical(lipgloss.Left,
 		navigationGroup,
@@ -99,6 +103,8 @@ func (s *HelpScreen) View() string {
 
 	rightColumn := lipgloss.JoinVertical(lipgloss.Left,
 		otherGroup,
+		"",
+		copyGroup,
 	)
 
 	content := lipgloss.JoinHorizontal(lipgloss.Top, leftColumn, "  ", rightColumn)

internal/tui/theme/theme.go

@@ -30,14 +30,20 @@ var (
 	once         sync.Once
 
 	// Global styles that can be used throughout the application
-	StylePrimary  lipgloss.Style
-	StyleSuccess  lipgloss.Style
-	StyleWarning  lipgloss.Style
-	StyleError    lipgloss.Style
-	StyleMuted    lipgloss.Style
-	StyleTitle    lipgloss.Style
-	StyleSubtitle lipgloss.Style
-	StyleHelpKey  lipgloss.Style
+	StylePrimary       lipgloss.Style
+	StyleSuccess       lipgloss.Style
+	StyleWarning       lipgloss.Style
+	StyleError         lipgloss.Style
+	StyleMuted         lipgloss.Style
+	StyleTitle         lipgloss.Style
+	StyleSubtitle      lipgloss.Style
+	StyleHelpKey       lipgloss.Style
+	StyleValue         lipgloss.Style
+	StyleDimmed        lipgloss.Style
+	StyleTableHeader   lipgloss.Style
+	StyleTableSelected lipgloss.Style
+	StyleBorder        lipgloss.Color
+	StyleBackground    lipgloss.Color
 )
 
 // DefaultTheme is the standard blue-based theme
@@ -176,6 +182,33 @@ func ApplyTheme(theme *Theme) {
 	StyleHelpKey = lipgloss.NewStyle().
 		Foreground(theme.Scheme.Primary).
 		Bold(true)
+
+	// Value style for content values
+	StyleValue = lipgloss.NewStyle().
+		Foreground(lipgloss.Color("255"))
+
+	// Dimmed style for overlay content
+	StyleDimmed = lipgloss.NewStyle().
+		Foreground(theme.Scheme.Muted)
+
+	// Table header style
+	StyleTableHeader = lipgloss.NewStyle().
+		BorderStyle(lipgloss.NormalBorder()).
+		BorderForeground(lipgloss.Color("240")).
+		BorderBottom(true).
+		Bold(true)
+
+	// Table selected style
+	StyleTableSelected = lipgloss.NewStyle().
+		Foreground(lipgloss.Color("229")).
+		Background(lipgloss.Color("57")).
+		Bold(false)
+
+	// Border color
+	StyleBorder = lipgloss.Color("240")
+
+	// Background color for modals
+	StyleBackground = lipgloss.Color("235")
 }
 
 // GetThemeNames returns a list of available theme names

internal/wireguard/status.go

@@ -15,6 +15,15 @@ const (
 	StatusConnected = "Connected"
 	// StatusDisconnected indicates a peer is not connected
 	StatusDisconnected = "Disconnected"
+
+	// QualityExcellent indicates handshake was very recent (< 30s)
+	QualityExcellent = "Excellent"
+	// QualityGood indicates handshake was recent (< 2m)
+	QualityGood = "Good"
+	// QualityFair indicates handshake was acceptable (< 5m)
+	QualityFair = "Fair"
+	// QualityPoor indicates handshake was old (> 5m)
+	QualityPoor = "Poor"
 )
 
 // PeerStatus represents the status of a WireGuard peer
@@ -25,7 +34,8 @@ type PeerStatus struct {
 	LatestHandshake time.Time `json:"latest_handshake"`
 	TransferRx      string    `json:"transfer_rx"`
 	TransferTx      string    `json:"transfer_tx"`
-	Status          string    `json:"status"` // "Connected" or "Disconnected"
+	Status          string    `json:"status"`            // "Connected" or "Disconnected"
+	Quality         string    `json:"quality,omitempty"` // "Excellent", "Good", "Fair", "Poor" (if connected)
 }
 
 // GetClientStatus checks if a specific client is connected
@@ -119,6 +129,20 @@ func parsePeersOutput(output string) []PeerStatus {
 	return peers
 }
 
+// CalculateQuality returns the connection quality based on handshake time
+func CalculateQuality(timeSinceHandshake time.Duration) string {
+	if timeSinceHandshake < 30*time.Second {
+		return QualityExcellent
+	}
+	if timeSinceHandshake < 2*time.Minute {
+		return QualityGood
+	}
+	if timeSinceHandshake < 5*time.Minute {
+		return QualityFair
+	}
+	return QualityPoor
+}
+
 // finalizePeerStatus determines the peer's status based on handshake time
 func finalizePeerStatus(peer *PeerStatus, handshake string, transfer string) PeerStatus {
 	peer.TransferRx = ""
@@ -140,13 +164,16 @@ func finalizePeerStatus(peer *PeerStatus, handshake string, transfer string) Pee
 		}
 	}
 
-	// Determine status based on handshake
+	// Determine status and quality based on handshake
 	if handshake != "" {
 		peer.LatestHandshake = parseHandshake(handshake)
+		timeSinceHandshake := time.Since(peer.LatestHandshake)
+
 		// Peer is considered connected if handshake is recent (within 5 minutes)
 		// This allows for ~12 missed keepalive intervals (at 25 seconds each)
-		if time.Since(peer.LatestHandshake) < 5*time.Minute {
+		if timeSinceHandshake < 5*time.Minute {
 			peer.Status = StatusConnected
+			peer.Quality = calculateQuality(timeSinceHandshake)
 		} else {
 			peer.Status = StatusDisconnected
 		}