Init

Signed-off-by: Hadi <112569860+anotherhadi@users.noreply.github.com>

internal/ui/overlay.go

@@ -0,0 +1,51 @@
+package ui
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/charmbracelet/x/ansi"
+)
+
+var dimStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("238"))
+
+// placeOverlay renders fg centered over bg, with bg stripped and rendered dim gray.
+func placeOverlay(bg, fg string, width, height int) string {
+	fgLines := strings.Split(fg, "\n")
+	fgH := len(fgLines)
+	fgW := 0
+	for _, l := range fgLines {
+		if w := lipgloss.Width(l); w > fgW {
+			fgW = w
+		}
+	}
+
+	bgLines := strings.Split(bg, "\n")
+
+	x0 := (width - fgW) / 2
+	y0 := (height - fgH) / 2
+
+	result := make([]string, height)
+	for i := 0; i < height; i++ {
+		raw := ""
+		if i < len(bgLines) {
+			raw = ansi.Strip(bgLines[i])
+		}
+		if w := lipgloss.Width(raw); w < width {
+			raw += strings.Repeat(" ", width-w)
+		}
+
+		fgIdx := i - y0
+		if fgIdx < 0 || fgIdx >= fgH {
+			result[i] = dimStyle.Render(raw)
+		} else {
+			fgLine := fgLines[fgIdx]
+			fgLineW := lipgloss.Width(fgLine)
+			left := ansi.Truncate(raw, x0, "")
+			right := ansi.Cut(raw, x0+fgLineW, width)
+			result[i] = dimStyle.Render(left) + fgLine + dimStyle.Render(right)
+		}
+	}
+
+	return strings.Join(result, "\n")
+}