81 lines
2.9 KiB
JavaScript
81 lines
2.9 KiB
JavaScript
import adapter from '@sveltejs/adapter-static';
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import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
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import fs from 'fs';
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import path from 'path';
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/** @type {import('@sveltejs/kit').Config} */
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const config = {
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// Consult https://svelte.dev/docs/kit/integrations
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// for more information about preprocessors
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preprocess: vitePreprocess(),
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kit: {
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// fallback: the SPA shell served for routes that were not prerendered
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// (unlisted cities, GPS coordinate routes); the universal load then
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// resolves the location client-side. Most static hosts serve 404.html
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// for unknown paths automatically.
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adapter: adapter({ fallback: '404.html' }),
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// Pregenerate city pages to improve SEO during static build
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prerender: {
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// dynamic per-location routes (14-day, compare, unlisted cities) are
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// served by the SPA fallback instead of being prerendered
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handleUnseenRoutes: 'ignore',
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// a transient geocoding failure for one city should skip that page
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// (the fallback still serves it), not abort the whole build
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handleHttpError: ({ path, message }) => {
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console.warn(`prerender skipped ${path}: ${message}`);
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},
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entries: (() => {
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// Locale lives in the path (see the paraglide config in vite.config.ts),
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// so a localized URL is not a route SvelteKit can discover on its own -
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// each one has to be listed. City pages are prerendered for the base
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// locale only; the other languages reach them through the SPA fallback,
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// which keeps the build from ballooning to cities × locales.
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const locales = ['en', 'de', 'es', 'fr', 'it'];
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const shared = [
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'/weather/week',
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'/weather/compare',
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'/weather/14-day',
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'/weather/seasonal',
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'/weather/historical',
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'/weather/maps',
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'/about',
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'/legal/imprint',
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'/legal/privacy',
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'/legal/terms'
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];
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const localized = locales.flatMap((locale) => shared.map((p) => `/${locale}${p}`));
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// Every per-location route, not just the week page: an unprerendered
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// path is served by the SPA fallback, which the host answers with a
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// 404 status. The page still works, but it costs a bogus 404 on every
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// hard reload (and tells crawlers the page does not exist).
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const cityRoutes = [
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'/weather/week',
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'/weather/compare',
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'/weather/14-day',
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'/weather/seasonal',
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'/weather/historical'
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];
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try {
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const citiesPath = path.resolve('src/routes/weather/locations/city-names100.json');
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const raw = fs.readFileSync(citiesPath, 'utf-8');
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const cities = JSON.parse(raw);
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if (Array.isArray(cities)) {
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const cityEntries = cities.flatMap((c) =>
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cityRoutes.map((route) => `/en${route}/${c}`)
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);
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// Keep the default wildcard to include other routes
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return ['*', ...localized, ...cityEntries];
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}
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} catch {
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// If anything goes wrong, fall back to default behavior
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}
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return ['*', ...localized];
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})()
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}
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}
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};
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export default config;
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