cosmo/frontend/src/hooks/useSpaceData.ts

/**
 * Custom hook for fetching space data
 */
import { useState, useEffect } from 'react';
import { fetchCelestialPositions } from '../utils/api';
import type { CelestialBody } from '../types';

export function useSpaceData() {
  const [bodies, setBodies] = useState<CelestialBody[]>([]);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);

  useEffect(() => {
    async function loadData() {
      try {
        setLoading(true);
        setError(null);

        // Fetch current position - single point in time at current hour
        // Round to current hour (00 minutes, 00 seconds)
        const now = new Date();
        now.setMinutes(0, 0, 0);

        const data = await fetchCelestialPositions(
          now.toISOString(),
          now.toISOString(), // Same as start - single point in time
          '1h' // 1 hour step (though doesn't matter for single point)
        );

        setBodies(data.bodies);
      } catch (err) {
        console.error('Failed to fetch celestial data:', err);
        setError(err instanceof Error ? err.message : 'Unknown error');
      } finally {
        setLoading(false);
      }
    }

    loadData();
  }, []);

  return { bodies, loading, error };
}