Aether/frontend/src/features/pool/utils/poolSchedulingDialog.ts

export interface SchedulingDialogPresetLike {
  mutexGroup: string | null
}

export function moveStrategyItem<T extends SchedulingDialogPresetLike>(
  items: readonly T[],
  itemIndex: number,
  direction: -1 | 1,
): T[] {
  const strategyIndexes: number[] = []

  items.forEach((item, index) => {
    if (!item.mutexGroup) {
      strategyIndexes.push(index)
    }
  })

  const currentPosition = strategyIndexes.indexOf(itemIndex)
  if (currentPosition === -1) {
    return [...items]
  }

  const targetPosition = currentPosition + direction
  if (targetPosition < 0 || targetPosition >= strategyIndexes.length) {
    return [...items]
  }

  const sourceIndex = strategyIndexes[currentPosition]
  const targetIndex = strategyIndexes[targetPosition]
  const nextItems = [...items]

  ;[nextItems[sourceIndex], nextItems[targetIndex]] = [nextItems[targetIndex], nextItems[sourceIndex]]

  return nextItems
}