till/managarten
1
0
Fork 0
mirror of https://github.com/Memo-2023/mana-monorepo.git synced 2026-05-14 18:41:08 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

feat(wetter): add multi-model source comparison view

Browse source 
New "Quellen-Vergleich" tab on the weather page that fetches the same
location from 5 weather models in parallel (DWD ICON-D2, ICON-EU,
ECMWF IFS, NOAA GFS, Open-Meteo Best Match) and displays them stacked
for easy comparison of temperature, precipitation, and daily forecasts.

Adds /api/v1/wetter/compare endpoint and SourceComparison.svelte.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Till JS 2026-04-17 13:57:05 +02:00
parent 85bba162db
commit 9b8c69123c
4 changed files with 569 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

76
apps/api/src/modules/wetter/routes.ts
View file

@ -343,4 +343,80 @@ routes.get('/radar-tiles', (c) => {
});
});
// ─── Multi-Model Comparison ────────────────────────────────
// Fetches the same location from multiple weather models in parallel
// so the frontend can show a side-by-side comparison.
const COMPARE_MODELS = [
{ id: 'icon_d2', label: 'DWD ICON-D2', description: '2km, Deutschland', source: 'DWD' },
{ id: 'icon_eu', label: 'DWD ICON-EU', description: '6.5km, Europa', source: 'DWD' },
{ id: 'ecmwf_ifs025', label: 'ECMWF IFS', description: '25km, Global', source: 'ECMWF' },
{ id: 'gfs_seamless', label: 'GFS', description: '25km, Global', source: 'NOAA' },
{
id: 'best_match',
label: 'Open-Meteo Best Match',
description: 'Automatisch bestes Modell',
source: 'Open-Meteo',
},
] as const;
const COMPARE_CURRENT = [
'temperature_2m',
'apparent_temperature',
'weather_code',
'wind_speed_10m',
'precipitation',
'relative_humidity_2m',
'is_day',
].join(',');
const COMPARE_DAILY = [
'temperature_2m_min',
'temperature_2m_max',
'weather_code',
'precipitation_sum',
'precipitation_probability_max',
].join(',');
routes.post('/compare', async (c) => {
const { lat, lon } = await c.req.json<{ lat: number; lon: number }>();
if (lat == null || lon == null) return c.json({ error: 'lat and lon required' }, 400);
const key = `compare:${coordKey(lat, lon)}`;
const cached = getCached(key);
if (cached) return c.json(cached);
const results = await Promise.all(
COMPARE_MODELS.map(async (model) => {
try {
const url = `${OPEN_METEO_BASE}/forecast?latitude=${lat}&longitude=${lon}&current=${COMPARE_CURRENT}&daily=${COMPARE_DAILY}&models=${model.id}&timezone=auto&forecast_days=7`;
const res = await fetch(url);
if (!res.ok) return { ...model, error: true, current: null, daily: null };
const data = (await res.json()) as {
current?: Record<string, unknown>;
daily?: Record<string, unknown[]>;
};
return { ...model, error: false, current: data.current ?? null, daily: data.daily ?? null };
} catch {
return { ...model, error: true, current: null, daily: null };
}
})
);
// Also fetch DWD alerts + nowcast for context
let alerts: unknown[] = [];
try {
const alertRes = await fetch(DWD_WARNINGS_URL, { headers: { Accept: 'application/json' } });
if (alertRes.ok) {
const raw = await alertRes.json();
alerts = extractNearbyAlerts(raw, lat, lon);
}
} catch {
/* noop */
}
const payload = { models: results, alerts, fetchedAt: Date.now() };
setCache(key, payload, WEATHER_TTL);
return c.json(payload);
});
export { routes as wetterRoutes };