Local forecasting

server/src/server.mjs

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+import express from 'express';
+import {resolve, dirname} from 'path';
+import {fileURLToPath} from 'url';
+import {cfg} from './config.mjs';
+import {queryCurrent, queryHourly, queryDaily, getCoords} from './influx.mjs';
+import {getCelestialCurrent, getCelestialForecast} from './celestial.mjs';
+import {getSpaceWeather} from './space.mjs';
+import {dailyForecast} from './openmeteo.mjs';
+import {apiReference} from '@scalar/express-api-reference';
+import {spec} from './spec.mjs';
+import {existsSync} from 'fs';
+import {getAirTraffic, getAirTrafficHistory, getShapes} from './airtraffic.mjs';
+import {getWeatherCondition} from './openweather.mjs';
+
+const app = express();
+const DIR = dirname(fileURLToPath(import.meta.url));
+const CLIENT_DIST = resolve(DIR, 'public');
+
+app.use(express.json());
+app.use('/icons', express.static(resolve(DIR, 'public', 'icons')));
+app.use((req, res, next) => {
+	res.setHeader('Access-Control-Allow-Origin', '*');
+	next();
+});
+app.use(express.static(CLIENT_DIST));
+
+function filterFields(obj, fields) {
+	if(!fields) return obj;
+	const keys = new Set(fields.split(',').map(f => f.trim()));
+	return Object.fromEntries(Object.entries(obj).filter(([k]) => keys.has(k)));
+}
+
+function filterArr(arr, fields) {
+	if(!fields) return arr;
+	return arr.map(row => filterFields(row, fields));
+}
+
+// ── Sensor Data ───────────────────────────────────────────────────────────────
+
+app.get('/api/current', async (req, res) => {
+	const {fields} = req.query;
+	const [sensors, coords] = await Promise.all([queryCurrent(), getCoords()]);
+	const condition = getWeatherCondition(sensors);
+	const space = getCelestialCurrent(coords.latitude, coords.longitude);
+	res.json(filterFields({...condition, ...sensors, ...space}, fields));
+});
+
+// ── Position ──────────────────────────────────────────────────────────────────
+
+app.get('/api/position', async (req, res) => {
+	const {fields} = req.query;
+	const data = await getCoords();
+	res.json(filterFields(data, fields));
+});
+
+// ── Space ─────────────────────────────────────────────────────────────────────
+
+app.get('/api/space', async (req, res) => {
+	const {fields} = req.query;
+	res.json(filterFields(await getSpaceWeather(), fields));
+});
+
+// ── Daily History/Forecast ────────────────────────────────────────────────────
+
+app.get('/api/hourly', async (req, res) => {
+	const { fields } = req.query
+	const now        = new Date()
+	const plus24     = new Date(now.getTime() + 24 * 3600 * 1000)
+	const start = req.query.start ? new Date(req.query.start) : new Date(now.setHours(0,0,0,0))
+	const end   = req.query.end   ? new Date(req.query.end)   : plus24
+	const coords  = await getCoords()
+	const sensors = await queryCurrent()
+
+	// ── Past → now: InfluxDB ──────────────────────────────────────────────────
+	const historyEnd = new Date(Math.min(now, end))
+	historyEnd.setMinutes(0, 0, 0)
+	const [historyResult] = await Promise.allSettled([
+		start < now ? queryHourly(start.toISOString(), historyEnd.toISOString()) : Promise.resolve([])
+	])
+	const history = historyResult.status === 'fulfilled' ? historyResult.value : []
+	// ── 24h Local Forecast ────────────────────────────────────────────────────
+	let physics = []
+	if (end > now) {
+		const forecastSlots = await get24HourForecast(sensors)
+		physics = forecastSlots.filter(s => {
+			const t = new Date(s.time)
+			return t >= now && t <= new Date(Math.min(end, plus24))
+		})
+	}
+	// ── +24h → Weather Service ────────────────────────────────────────────────
+	let meteo = []
+	if (end > plus24) {
+		const [meteoResult] = await Promise.allSettled([
+			getOpenMeteoHourly(coords.latitude, coords.longitude, plus24, end)
+		])
+		meteo = meteoResult.status === 'fulfilled' ? meteoResult.value : []
+	}
+
+	const hourly = getCelestialForecast(
+		coords.latitude,
+		coords.longitude,
+		[...history, ...physics, ...meteo]
+	)
+	res.json(filterArr(hourly, fields))
+})
+
+// ── Hourly History/Forecast ───────────────────────────────────────────────────
+
+app.get('/api/daily', async (req, res) => {
+	const { fields } = req.query
+	const now = new Date()
+	now.setHours(0, 0, 0, 0)
+	const next = new Date(now)
+	next.setDate(now.getDate() + 1)
+	const start = req.query.start ? new Date(req.query.start) : now
+	const end   = req.query.end   ? new Date(req.query.end)   : next
+	const meteoStart = start >= next ? start : next
+	const coords = await getCoords()
+
+	const [sensor, meteo] = await Promise.allSettled([
+		start < now ? queryDaily(start.toISOString(), now.toISOString()) : Promise.resolve([]),
+		end > now ? dailyForecast(coords.latitude, coords.longitude, meteoStart, end) : Promise.resolve([]),
+	])
+
+	const history  = sensor.status === 'fulfilled' ? sensor.value : []
+	const forecast = meteo.status  === 'fulfilled' ? meteo.value  : []
+	const daily    = getCelestialForecast(coords.latitude, coords.longitude, [...history, ...forecast])
+	res.json(filterArr(daily, fields))
+})
+
+// ── ADSB Proxy ────────────────────────────────────────────────────────────────
+
+app.get('/api/air-traffic', async (req, res) => res.json(await getAirTraffic()));
+app.get('/api/air-traffic/:icao', async (req, res) => res.json(await getAirTrafficHistory(req.params.icao)));
+app.get('/api/air-traffic-shapes', async (req, res) => res.json(await getShapes()));
+
+// ── DOCS ──────────────────────────────────────────────────────────────────────
+
+app.use('/docs', apiReference({spec: {url: '/openapi.json'}, theme: 'default'}));
+app.get('/openapi.json', (req, res) => res.json(spec));
+app.get('/openapi.yaml', async (req, res) => {
+	const {stringify} = await import('yaml');
+	res.setHeader('Content-Type', 'text/yaml');
+	res.send(stringify(spec));
+});
+
+// ── Website ───────────────────────────────────────────────────────────────────
+
+app.get('*', (req, res) => {
+	const index = resolve(CLIENT_DIST, 'index.html');
+	if(existsSync(index)) res.sendFile(index);
+	else res.status(404).send('Client not built yet — run npm run build in /client');
+});
+
+// ── Start ─────────────────────────────────────────────────────────────────────
+
+const c = cfg();
+app.listen(c.PORT, () => console.log(`🌦  Weather API — http://localhost:${c.PORT}`));