/**
 * Home Page (SSR)
 * Main landing page with school search and browsing
 */

import { fetchSchools, fetchFilters, fetchDataInfo } from '@/lib/api';
import { HomeView } from '@/components/HomeView';

interface HomePageProps {
  searchParams: Promise<{
    search?: string;
    local_authority?: string;
    school_type?: string;
    phase?: string;
    page?: string;
    postcode?: string;
    radius?: string;
  }>;
}

export const metadata = {
  title: 'Home',
  description: 'Search and compare school performance across England',
};

// Force dynamic rendering (no static generation at build time)
export const dynamic = 'force-dynamic';

export default async function HomePage({ searchParams }: HomePageProps) {
  // Await search params (Next.js 15 requirement)
  const params = await searchParams;

  // Parse search params
  const page = parseInt(params.page || '1');
  const radius = params.radius ? parseFloat(params.radius) : undefined;

  // Check if user has performed a search
  const hasSearchParams = !!(
    params.search ||
    params.local_authority ||
    params.school_type ||
    params.phase ||
    params.postcode
  );

  // Fetch data on server with error handling
  try {
    const [filtersData, dataInfo] = await Promise.all([fetchFilters(), fetchDataInfo().catch(() => null)]);

    // Only fetch schools if there are search parameters
    let schoolsData;
    if (hasSearchParams) {
      schoolsData = await fetchSchools({
        search: params.search,
        local_authority: params.local_authority,
        school_type: params.school_type,
        phase: params.phase,
        postcode: params.postcode,
        radius,
        page,
        page_size: 50,
      });
    } else {
      // Empty state by default
      schoolsData = { schools: [], page: 1, page_size: 50, total: 0, total_pages: 0 };
    }

    return (
      <HomeView
        initialSchools={schoolsData}
        filters={filtersData || { local_authorities: [], school_types: [], years: [], phases: [], genders: [], admissions_policies: [] }}
        totalSchools={dataInfo?.total_schools ?? null}
      />
    );
  } catch (error) {
    console.error('Error fetching data for home page:', error);

    // Return error state with empty data
    return (
      <HomeView
        initialSchools={{ schools: [], page: 1, page_size: 50, total: 0, total_pages: 0 }}
        filters={{ local_authorities: [], school_types: [], years: [], phases: [], genders: [], admissions_policies: [] }}
        totalSchools={null}
      />
    );
  }
}