export type RainGearItem = 'umbrella' | 'raincoat' | 'hood';

/** Equipment is independent of movement and emotes. */
export function createRainGearState() {
  const worn = { umbrella: false, raincoat: false, hood: false };
  let available = false;
  let awaitingArrivalWeather = true;
  return {
    get available() { return available; },
    get umbrella() { return worn.umbrella; },
    get raincoat() { return worn.raincoat; },
    get hood() { return worn.hood; },
    apply(state: { umbrella: boolean; raincoat: boolean; hood: boolean }) {
      worn.umbrella = state.umbrella;
      worn.raincoat = state.raincoat;
      worn.hood = state.raincoat && state.hood;
    },
    updateWeather(rain: number | null, snowfall: number | null) {
      available = (rain ?? 0) > 0 || (snowfall ?? 0) > 0;
      if (awaitingArrivalWeather && rain !== null) {
        if (rain > 0) { worn.raincoat = true; worn.hood = true; }
        awaitingArrivalWeather = false;
      }
      if (!available) { worn.umbrella = false; worn.raincoat = false; worn.hood = false; }
    },
    toggle(item: RainGearItem) {
      if (!available) return false;
      if (item === 'hood' && !worn.raincoat) return false;
      worn[item] = !worn[item];
      if (!worn.raincoat) worn.hood = false;
      return true;
    },
  };
}