heap.Push(e.pq, &Entry{
		value:    value,
		weight:   weight,
		deadline: e.currentDeadline + 1/weight,
		index:    e.currentIndex,
	})
}

// PickAndAdd picks an available entry and re-adds it with the given weight calculation
func (e *EDF) PickAndAdd(calcWeight func(prevWeight float64, value any) float64) any {
	// if no available entry, return nil
	if len(*e.pq) == 0 {
		return nil
	}
	entry := heap.Pop(e.pq).(*Entry)