export function xpForLevel(level: number): number {
  if (level <= 1) return 0;
  return Math.floor(100 * Math.pow(level - 1, 1.6));
}

export function levelFromXp(totalXp: number): number {
  let level = 1;
  while (xpForLevel(level + 1) <= totalXp && level < 150) {
    level++;
  }
  return level;
}

export function xpProgressInLevel(totalXp: number): {
  level: number;
  current: number;
  needed: number;
  percent: number;
} {
  const level = levelFromXp(totalXp);
  const currentLevelXp = xpForLevel(level);
  const nextLevelXp = xpForLevel(level + 1);
  const current = totalXp - currentLevelXp;
  const needed = nextLevelXp - currentLevelXp;
  const percent = needed > 0 ? Math.min(100, (current / needed) * 100) : 100;
  return { level, current, needed, percent };
}