/**
 * SchoolMap Component
 * Client-side Leaflet map wrapper for displaying school locations
 */

'use client';

import dynamic from 'next/dynamic';
import type { School } from '@/lib/types';
import styles from './SchoolMap.module.css';

// Dynamic import to avoid SSR issues with Leaflet
const LeafletMap = dynamic(() => import('./LeafletMapInner'), {
  ssr: false,
  loading: () => (
    <div className={styles.mapLoading}>
      <div className={styles.spinner}></div>
      <p>Loading map...</p>
    </div>
  ),
});

interface SchoolMapProps {
  schools: School[];
  center?: [number, number];
  zoom?: number;
  onMarkerClick?: (school: School) => void;
}

export function SchoolMap({ schools, center, zoom = 13, onMarkerClick }: SchoolMapProps) {
  // Calculate center if not provided
  const mapCenter: [number, number] = center || (() => {
    if (schools.length === 0) return [51.5074, -0.1278]; // Default to London
    if (schools.length === 1 && schools[0].latitude && schools[0].longitude) {
      return [schools[0].latitude, schools[0].longitude];
    }

    // Calculate average position
    const validSchools = schools.filter(s => s.latitude && s.longitude);
    if (validSchools.length === 0) return [51.5074, -0.1278];

    const avgLat = validSchools.reduce((sum, s) => sum + (s.latitude || 0), 0) / validSchools.length;
    const avgLng = validSchools.reduce((sum, s) => sum + (s.longitude || 0), 0) / validSchools.length;
    return [avgLat, avgLng];
  })();

  return (
    <div className={styles.mapWrapper}>
      <LeafletMap
        schools={schools}
        center={mapCenter}
        zoom={zoom}
        onMarkerClick={onMarkerClick}
      />
    </div>
  );
}