(function () {
  const dataService = window.TarotDataService || {};
  const {
    DAY_IN_MS,
    toTitleCase,
    getMoonPhaseName,
    getDecanForDate,
    calcPlanetaryHoursForDayAndLocation
  } = window.TarotCalc;

  const PLANET_CALENDAR_IDS = new Set(["saturn", "jupiter", "mars", "sol", "venus", "mercury", "luna"]);
  const BACKFILL_DAYS = 4;
  const FORECAST_DAYS = 7;

  function normalizeApiEvent(event) {
    if (!event || typeof event !== "object") {
      return event;
    }

    return {
      ...event,
      start: event.start ? new Date(event.start) : event.start,
      end: event.end ? new Date(event.end) : event.end
    };
  }

  async function buildWeekEvents(geo, referenceData, anchorDate) {
    const payload = await dataService.fetchWeekEvents?.(geo, anchorDate);
    const events = Array.isArray(payload?.events)
      ? payload.events
      : (Array.isArray(payload) ? payload : []);
    return events.map((event) => normalizeApiEvent(event));
  }

  window.TarotEventBuilder = {
    buildWeekEvents
  };
})();