Add "power" page

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

internal/ui/power/view.go

@@ -0,0 +1,69 @@
+package power
+
+import (
+	"strings"
+
+	tea "charm.land/bubbletea/v2"
+	"charm.land/lipgloss/v2"
+	ilovetui "github.com/anotherhadi/ilovetui"
+)
+
+func windowStyle() lipgloss.Style {
+	return lipgloss.NewStyle().
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(ilovetui.S.Subtle).
+		Padding(1, 2)
+}
+
+func (m Model) View() tea.View {
+	statusBar := m.renderStatusBar()
+	innerW, innerH := m.contentBudget()
+	tabBar := renderTabBar(innerW)
+
+	box := lipgloss.NewStyle().Width(innerW).Height(innerH).Render(m.renderBody(innerW))
+	content := windowStyle().Render(lipgloss.JoinVertical(lipgloss.Left, tabBar, box))
+
+	return tea.NewView(lipgloss.JoinVertical(lipgloss.Left, content, statusBar))
+}
+
+func (m Model) renderStatusBar() string {
+	km := powerKeyMap{m: m, width: m.width}
+	return lipgloss.NewStyle().Padding(0, 1).Render(m.help.View(km))
+}
+
+// contentBudget returns the exact space available inside the bordered page
+// box, below the tab bar and above the status bar.
+func (m Model) contentBudget() (w, h int) {
+	frameW := windowStyle().GetHorizontalFrameSize()
+	frameH := windowStyle().GetVerticalFrameSize()
+	w = m.width - frameW
+
+	statusH := strings.Count(m.renderStatusBar(), "\n") + 1
+	tabBarH := lipgloss.Height(renderTabBar(w))
+
+	h = m.height - tabBarH - frameH - statusH
+	if h < 1 {
+		h = 1
+	}
+	return w, h
+}
+
+// renderBody lays out the two sections side by side once there's enough
+// width for both to breathe, and stacks them otherwise.
+func (m Model) renderBody(width int) string {
+	const splitThreshold = 60
+	const gap = 3
+
+	if width < splitThreshold {
+		return lipgloss.JoinVertical(lipgloss.Left, m.renderProfiles(), "", m.renderBattery(width))
+	}
+
+	leftW := width / 3
+	if leftW < 20 {
+		leftW = 20
+	}
+	rightW := width - leftW - gap
+	left := lipgloss.NewStyle().Width(leftW).Render(m.renderProfiles())
+	right := lipgloss.NewStyle().Width(rightW).Render(m.renderBattery(rightW))
+	return lipgloss.JoinHorizontal(lipgloss.Top, left, strings.Repeat(" ", gap), right)
+}