export enum HitObjectType {
  HitCircle = 1,
  Slider = 2,
  Spinner = 8
}

export type HitObject = {
  x: number;
  y: number;
  time: number;
  type: number;
  hitSound: number;
  objectParams: string;
  hitSample: string;
};

export function parseHitObjects(beatmap: string): any[] {
  const lines = beatmap.split('\n');
  let recording = false;
  const hitObjects = [];

  for (const line of lines) {
    if (line.trim() === '[HitObjects]') {
      recording = true;
      continue;
    }

    if (!recording) continue;

    if (line.startsWith('[')) break;

    const parts = line.split(',');
    if (parts.length < 5) continue;

    const type = parseInt(parts[3], 10);
    const hitObject = {
      x: parseInt(parts[0], 10),
      y: parseInt(parts[1], 10),
      time: parseInt(parts[2], 10),
      type: getTypeFromFlag(type),
      hitSound: parseInt(parts[4], 10),
      objectParams: parts[5],
      hitSample: parts.length > 6 ? parts[6] : '0:0:0:0:'
    };

    hitObjects.push(hitObject);
  }

  return hitObjects;
}

function getTypeFromFlag(flag: number): HitObjectType | null {
  if (flag & HitObjectType.HitCircle) return HitObjectType.HitCircle;
  if (flag & HitObjectType.Slider) return HitObjectType.Slider;
  if (flag & HitObjectType.Spinner) return HitObjectType.Spinner;
  return null;
}