import type { Condition } from "../../types";

/** Shared by both OpenWeather plans. */

export const OWM_LABEL = "OpenWeather";

export interface OwmWeatherTag {
  id: number;
  description: string;
  icon: string; // ends in "d" (day) or "n" (night)
}

/** Condition codes: https://openweathermap.org/weather-conditions */
export function toCondition(code: number): Condition {
  if (code >= 200 && code < 300) return "storm";
  if (code >= 300 && code < 600) return "rain"; // drizzle + rain
  if (code >= 600 && code < 700) return "snow";
  if (code >= 700 && code < 800) return "fog"; // mist, haze, smoke, dust…
  if (code === 800) return "clear";
  return "clouds";
}

/** OpenWeather gives probability of precipitation as 0–1; we use 0–100. */
export function popToPercent(pop: number | undefined): number | null {
  return pop === undefined ? null : Math.round(pop * 100);
}

/** Rain + snow volume, either of which may be missing. */
export function precipitation(rain?: number, snow?: number): number | null {
  if (rain === undefined && snow === undefined) return null;
  return Math.round(((rain ?? 0) + (snow ?? 0)) * 10) / 10;
}