Function loadingView

internal/tui/loading.go:157–201

loadingView renders an animated hourglass centered in the content area.

(width, contentHeight int, phase float64)

// loadingView renders an animated hourglass centered in the content area.
func loadingView(width, contentHeight int, phase float64) string {
	if width < hourglassVisualWidth || contentHeight < 2 {
		return "Loading..."
	}

	frame := hourglassFrames[hourglassFrameIndex(phase)]

	glass := lipgloss.NewStyle().Foreground(colorPrimary)
	label := styleMuted

	// Build centered lines
	padLeft := (width - hourglassVisualWidth) / 2
	if padLeft < 0 {
		padLeft = 0
	}
	prefix := strings.Repeat(" ", padLeft)

	var lines []string
	for _, line := range frame {
		lines = append(lines, prefix+glass.Render(line))
	}

	// "Loading..." label centered below
	labelText := "Loading..."
	labelPad := (width - len(labelText)) / 2
	if labelPad < 0 {
		labelPad = 0
	}
	lines = append(lines, strings.Repeat(" ", labelPad)+label.Render(labelText))

	// Vertical centering
	totalLines := len(lines)
	topPad := (contentHeight - totalLines) / 2
	if topPad < 0 {
		topPad = 0
	}

	var b strings.Builder
	for range topPad {
		b.WriteString("\n")
	}
	b.WriteString(strings.Join(lines, "\n"))

	return b.String()
}