Extract group widget functionality into generic widget container

internal/widget/container.go

@@ -0,0 +1,48 @@
+package widget
+
+import (
+	"context"
+	"sync"
+	"time"
+)
+
+type containerWidget struct {
+	Widgets Widgets `yaml:"widgets"`
+}
+
+func (widget *containerWidget) Update(ctx context.Context) {
+	var wg sync.WaitGroup
+	now := time.Now()
+
+	for w := range widget.Widgets {
+		widget := widget.Widgets[w]
+
+		if !widget.RequiresUpdate(&now) {
+			continue
+		}
+
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			widget.Update(ctx)
+		}()
+	}
+
+	wg.Wait()
+}
+
+func (widget *containerWidget) SetProviders(providers *Providers) {
+	for i := range widget.Widgets {
+		widget.Widgets[i].SetProviders(providers)
+	}
+}
+
+func (widget *containerWidget) RequiresUpdate(now *time.Time) bool {
+	for i := range widget.Widgets {
+		if widget.Widgets[i].RequiresUpdate(now) {
+			return true
+		}
+	}
+
+	return false
+}