export type QuickClipPosition = 'at' | 'before';

export function computeQuickClipRange(
  currentTime: number,
  duration: number,
  position: QuickClipPosition,
  clipDuration = 10,
): { start: number; end: number } | null {
  if (duration === 0) return null;

  switch (position) {
    case 'at':
      return {
        start: currentTime,
        end: Math.min(currentTime + clipDuration, duration),
      };
    case 'before':
      return {
        start: Math.max(currentTime - clipDuration, 0),
        end: currentTime,
      };
    default: {
      const _exhaustive: never = position;
      void _exhaustive;
      return null;
    }
  }
}