init

server/server.mjs

@@ -0,0 +1,142 @@
+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, getCelestialHourly, getCelestialDaily } from './celestial.mjs'
+import { getSpaceWeather }  from './space.mjs'
+import { getOpenMeteo }     from './openmeteo.mjs'
+import { apiReference } from '@scalar/express-api-reference'
+import { spec } from './spec.mjs'
+import { existsSync } from 'fs'
+
+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))
+}
+
+function mergeRows(arrays) {
+  const map = {}
+  for (const arr of arrays) {
+    for (const row of arr) {
+      map[row.time] = { ...map[row.time], ...row }
+    }
+  }
+  return Object.values(map).sort((a, b) => a.time.localeCompare(b.time))
+}
+
+// ── GET /api/data ─────────────────────────────────────────────────────────────
+
+app.get('/api/data', async (req, res) => {
+  const { fields } = req.query
+  const coords = await getCoords()
+
+  const [sensor, space, meteo] = await Promise.allSettled([
+    queryCurrent(),
+    getSpaceWeather(),
+    getOpenMeteo(coords.lat, coords.lon),
+  ])
+
+  const celestial = getCelestialCurrent(coords.lat, coords.lon)
+
+  const data = {
+    ...(sensor.status === 'fulfilled' ? sensor.value : {}),
+    ...celestial,
+    ...(space.status  === 'fulfilled' ? space.value  : {}),
+    ...(meteo.status  === 'fulfilled' && meteo.value.current ? meteo.value.current : {}),
+  }
+
+  res.json(filterFields(data, fields))
+})
+
+// ── GET /api/hourly ───────────────────────────────────────────────────────────
+app.get('/api/hourly', async (req, res) => {
+  const { fields } = req.query
+  const start  = req.query.start || new Date(new Date().setHours(0,0,0,0)).toISOString()
+  const end    = req.query.end   || new Date().toISOString()
+  const coords = await getCoords()
+
+  const [sensor, meteo, space] = await Promise.allSettled([
+    queryHourly(start, end),
+    getOpenMeteo(coords.lat, coords.lon, start, end),
+    getSpaceWeather(),
+  ])
+
+  const sensorRows  = sensor.status === 'fulfilled' ? sensor.value       : []
+  const meteoHourly = meteo.status  === 'fulfilled' ? meteo.value.hourly : []
+  const spaceData   = space.status  === 'fulfilled' ? space.value        : {}
+  const seedRows    = sensorRows.length ? sensorRows : meteoHourly
+  const celestial   = getCelestialHourly(coords.lat, coords.lon, seedRows)
+
+  // Spread space weather into every hourly row
+  const result = mergeRows([sensorRows, meteoHourly, celestial])
+    .map(row => ({ ...spaceData, ...row }))
+
+  res.json(filterArr(result, fields))
+})
+
+// ── GET /api/daily ------------------------------------------------------------
+
+app.get('/api/daily', async (req, res) => {
+  const { fields } = req.query
+  const start  = req.query.start || new Date(new Date().setHours(0,0,0,0)).toISOString()
+  const end    = req.query.end   || new Date().toISOString()
+  const coords = await getCoords()
+
+  const [sensor, meteo, space] = await Promise.allSettled([
+    queryDaily(start, end),
+    getOpenMeteo(coords.lat, coords.lon, start, end),
+    getSpaceWeather(),
+  ])
+
+  const sensorRows = sensor.status === 'fulfilled' ? sensor.value      : []
+  const meteoDaily = meteo.status  === 'fulfilled' ? meteo.value.daily : []
+  const spaceData  = space.status  === 'fulfilled' ? space.value       : {}
+  const seedRows   = sensorRows.length ? sensorRows : meteoDaily
+  const celestial  = getCelestialDaily(coords.lat, coords.lon, seedRows)
+
+  const result = mergeRows([sensorRows, meteoDaily, celestial])
+    .map(row => ({ ...spaceData, ...row }))
+
+  res.json(filterArr(result, fields))
+})
+
+// ── DOCS ----------------------------------------------------------------------
+
+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))
+})
+
+// Scalar UI
+app.use('/docs', apiReference({ spec: { url: '/openapi.json' }, theme: 'default' }))
+
+
+// ── SPA Redirect --------------------------------------------------------------
+  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}`))