extensions.js

const AACHEN = { lat: 50.7753, long: 6.0839 };

reaction(
  () => Day.getAll(),
  (days) => {
    days.forEach(async (day) => {
      const forecast = await getWeatherForecast(AACHEN, day.start, day.end);

      if (!forecast) {
        return;
      }

      Sticker.create({
        target: day,
        label: `${forecast.weatherEmoji} ${Math.round(
          forecast.minTemperature
        )}° - ${Math.round(forecast.maxTemperature)}°`,
      });
    });
  }
);

reaction(
  () => Day.getAll(),
  async (days) => {
    let minStartDate = days[0].start;
    let maxEndDate = days[0].end;

    days.forEach((day) => {
      if (day.start < minStartDate) {
        minStartDate = day.start;
      }
      if (day.end > maxEndDate) {
        maxEndDate = day.end;
      }
    });

    const events = await getEventsBetween(minStartDate, maxEndDate);
    console.log(events);
  }
);

reaction(
  () => Event.getAll(),
  async (events) => {
    console.log(events);

    events.forEach(async (event) => {
      if (!event.location) {
        return;
      }

      const forecast = await getWeatherForecast(
        event.location,
        event.start,
        event.end
      );

      if (!forecast) {
        return;
      }

      Sticker.create({
        target: event,
        label: `${forecast.weatherEmoji} ${Math.round(
          forecast.meanTemperature
        )}° (${event.location.title})`,
      });
    });
  }
);