/** Separate from the source dungeon's Normal/Heroic creature variant. */
export function validBossDifficulty(value: unknown): value is number {
  return typeof value === "number" && Number.isInteger(value) && value >= 1 && value <= 10;
}

export function bossDifficultyMultipliers(level: number) {
  const difficulty = validBossDifficulty(level) ? level : 1;
  return { health: 1 + (difficulty - 1) * 0.25, damage: 1 + (difficulty - 1) * 0.15 };
}

export function bossDifficultyLabel(level?: number): string {
  return level ? `Difficulty ${level}${level === 1 ? " · Easy" : ""}` : "Legacy";
}