export const getOffset = (height: number, percentage: number) => {
  if (percentage < 0) return height;
  if (percentage > 100) return 0;

  return height * ((100 - percentage) / 100);
};

export type SnapPointsData = {
  list: number[];
  minHeightOffset: number;
  maxHeightOffset: number;
};

export const calculateSnapPointsData = (
  minimumHeight: number,
  height: number,
  snapPoints: number[]
): SnapPointsData => {
  const filteredSnapPoints = snapPoints.filter(
    (value) => value >= minimumHeight
  );
  const snapPointsOffsetValues = [minimumHeight, ...filteredSnapPoints].map(
    (value) => getOffset(height, value)
  );
  const uniqSnapPointOffsetValues = Array.from(
    new Set([...snapPointsOffsetValues, 0])
  );

  return {
    list: uniqSnapPointOffsetValues,
    minHeightOffset: Math.max(...uniqSnapPointOffsetValues), // Furthest from max height
    maxHeightOffset: 0, // Max height
  };
};

export const calculateAnimatedToValue = (
  position: number,
  heightSnapPoints: number[]
) => {
  const distances = heightSnapPoints.map((height) =>
    Math.abs(position - height)
  );

  const minIndex = distances.indexOf(Math.min(...distances));
  return heightSnapPoints[minIndex];
};