the-nexus/modules/data/weather.js

// modules/data/weather.js — Open-Meteo weather fetch
// Writes to: weatherState (returned), scene effects applied by caller

const WEATHER_LAT = 43.2897;
const WEATHER_LON = -72.1479;
const WEATHER_REFRESH_MS = 15 * 60 * 1000;

function weatherCodeToLabel(code) {
  if (code === 0)                   return { condition: 'Clear',         icon: '☀️' };
  if (code <= 2)                    return { condition: 'Partly Cloudy', icon: '⛅' };
  if (code === 3)                   return { condition: 'Overcast',      icon: '☁️' };
  if (code >= 45 && code <= 48)     return { condition: 'Fog',           icon: '🌫️' };
  if (code >= 51 && code <= 57)     return { condition: 'Drizzle',       icon: '🌦️' };
  if (code >= 61 && code <= 67)     return { condition: 'Rain',          icon: '🌧️' };
  if (code >= 71 && code <= 77)     return { condition: 'Snow',          icon: '❄️' };
  if (code >= 80 && code <= 82)     return { condition: 'Showers',       icon: '🌦️' };
  if (code >= 85 && code <= 86)     return { condition: 'Snow Showers',  icon: '🌨️' };
  if (code >= 95 && code <= 99)     return { condition: 'Thunderstorm',  icon: '⛈️' };
  return { condition: 'Unknown', icon: '🌀' };
}

export async function fetchWeatherData() {
  const url = `https://api.open-meteo.com/v1/forecast?latitude=${WEATHER_LAT}&longitude=${WEATHER_LON}&current=temperature_2m,weather_code,wind_speed_10m,cloud_cover&temperature_unit=fahrenheit&wind_speed_unit=mph&forecast_days=1`;
  const res = await fetch(url);
  if (!res.ok) throw new Error('weather fetch failed');
  const data = await res.json();
  const cur = data.current;
  const code = cur.weather_code;
  const { condition, icon } = weatherCodeToLabel(code);
  const cloudcover = typeof cur.cloud_cover === 'number' ? cur.cloud_cover : 50;
  return { code, temp: cur.temperature_2m, wind: cur.wind_speed_10m, condition, icon, cloudcover };
}

export { WEATHER_REFRESH_MS };