minimum window size package

Signed-off-by: Hadi <[email protected]>

minsize/minsize.go

@@ -0,0 +1,60 @@
+package minsize
+
+import (
+	"fmt"
+
+	"charm.land/lipgloss/v2"
+
+	"github.com/anotherhadi/ilovetui/style"
+)
+
+type Model struct {
+	MinWidth  int
+	MinHeight int
+	Style     lipgloss.Style
+}
+
+type Option func(*Model)
+
+func WithStyle(s lipgloss.Style) Option {
+	return func(m *Model) { m.Style = s }
+}
+
+func New(minWidth, minHeight int, opts ...Option) Model {
+	m := Model{
+		MinWidth:  minWidth,
+		MinHeight: minHeight,
+		Style:     lipgloss.NewStyle().Foreground(style.S.Muted),
+	}
+	for _, opt := range opts {
+		opt(&m)
+	}
+	return m
+}
+
+func (m Model) Fits(width, height int) bool {
+	return width >= m.MinWidth && height >= m.MinHeight
+}
+
+func (m Model) View(width, height int) string {
+	msg := m.Style.Render(m.message(width, height))
+	if width < 1 || height < 1 {
+		return msg
+	}
+	return lipgloss.Place(width, height, lipgloss.Center, lipgloss.Center, msg)
+}
+
+func (m Model) message(width, height int) string {
+	tooNarrow := width < m.MinWidth
+	tooShort := height < m.MinHeight
+	switch {
+	case tooNarrow && tooShort:
+		return fmt.Sprintf("minimum is %dx%d", m.MinWidth, m.MinHeight)
+	case tooNarrow:
+		return fmt.Sprintf("minimum width: %d", m.MinWidth)
+	case tooShort:
+		return fmt.Sprintf("minimum height: %d", m.MinHeight)
+	default:
+		return ""
+	}
+}