Init

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

internal/style/border.go

@@ -0,0 +1,43 @@
+package style
+
+import (
+	"strings"
+
+	"charm.land/lipgloss/v2"
+)
+
+// PanelContentH returns the usable inner content height for a panel rendered by
+// RenderWithTitle. It subtracts the two border lines (top + bottom) from the
+// total panel height.
+func PanelContentH(totalH int) int {
+	h := totalH - 2
+	if h < 0 {
+		return 0
+	}
+	return h
+}
+
+// RenderWithTitle renders a lipgloss bordered box with a title embedded in the
+// top border, matching the border's own foreground color. height is the total
+// desired output height (including both border lines).
+func RenderWithTitle(border lipgloss.Style, title, content string, width, height int) string {
+	boxH := height - 1
+	if contentH := boxH - 1; contentH > 0 {
+		lines := strings.Split(content, "\n")
+		if len(lines) > contentH {
+			content = strings.Join(lines[:contentH], "\n")
+		}
+	}
+	box := border.BorderTop(false).Width(width).Height(boxH).Render(content)
+
+	boxWidth := lipgloss.Width(strings.SplitN(box, "\n", 2)[0])
+	label := " " + title + " "
+	fillW := boxWidth - lipgloss.Width(label) - 2
+	if fillW < 0 {
+		fillW = 0
+	}
+	topLine := "╭" + label + strings.Repeat("─", fillW) + "╮"
+	topLine = lipgloss.NewStyle().Foreground(border.GetBorderTopForeground()).Render(topLine)
+
+	return lipgloss.JoinVertical(lipgloss.Left, topLine, box)
+}