let alreadyPrerendered = false;
let isPrerendering = false;

export default defineNuxtPlugin({
  name: 'erudit-prerender-routes',
  async setup(nuxt) {
    if (import.meta.dev) {
      // Server is available so no need to prerender anything
      return;
    }

    if (alreadyPrerendered || isPrerendering) {
      return;
    }

    isPrerendering = true;

    const routes = ['/robots.txt', '/search.json.gz', '/sitemap.xml'];

    const routeProviders = [
      '/api/prerender/default',
      '/api/prerender/files',
      '/api/prerender/frontNav',
      '/api/prerender/language',
      '/api/prerender/content',
      '/api/prerender/quotes',
      '/api/prerender/news',
    ];

    for (const provider of routeProviders) {
      const fetchedRoutes = await fetchJson<string[]>(provider);
      routes.push(...fetchedRoutes);
    }

    nuxt.runWithContext(() => prerenderRoutes(routes));

    alreadyPrerendered = true;
    isPrerendering = false;
  },
});