feat: Gezeiten über BSH-OGC-API mit Stations-Suche

Amtliche BSH-Wasserstandsvorhersage ersetzt Open-Meteo als Primärquelle; nächster Pegel per Haversine, Open-Meteo nur außerhalb 75 km Reichweite. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-06-12 11:00:41 +02:00
parent 0b46154696
commit 7d6c908f65
20 changed files with 680 additions and 32 deletions
@@ -0,0 +1,75 @@
+import { describe, expect, it, vi, beforeEach, afterEach } from 'vitest'
+import * as bshTides from './bshTides.js'
+import * as openMeteoTides from './openMeteoTides.js'
+import { fetchTidesForCoordinates } from './tideProvider.js'
+
+describe('fetchTidesForCoordinates', () => {
+  beforeEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it('returns BSH data when station is within range', async () => {
+    vi.spyOn(bshTides, 'fetchBshTidesForCoordinates').mockResolvedValue({
+      distanceKm: 8,
+      location: {
+        name: 'Norderney, Riffgat',
+        lat: 53.696389,
+        lon: 7.157778,
+        source: 'bsh_station',
+        stationId: 'norderney_riffgat'
+      },
+      tides: {
+        data: {
+          timezone: 'Europe/Berlin',
+          datum: 'gauge',
+          source: 'BSH',
+          extrema: [
+            {
+              time: '2026-06-12T07:20:00.000Z',
+              date: '2026-06-12',
+              height: 6.16,
+              isHigh: true
+            }
+          ]
+        }
+      }
+    })
+
+    const result = await fetchTidesForCoordinates(53.62, 7.15)
+    expect(result.distanceKm).toBe(8)
+    expect(result.location.source).toBe('bsh_station')
+    expect(result.fallback).toBeUndefined()
+  })
+
+  it('falls back to Open-Meteo when BSH station is too far', async () => {
+    vi.spyOn(bshTides, 'fetchBshTidesForCoordinates').mockRejectedValue(
+      Object.assign(new Error('bsh_station_too_far'), { distanceKm: 120 })
+    )
+    vi.spyOn(openMeteoTides, 'fetchTidesForCoordinates').mockResolvedValue({
+      location: { lat: 62, lon: 5, source: 'coordinates' },
+      tides: {
+        data: {
+          timezone: 'Europe/Oslo',
+          datum: 'MSL',
+          source: 'Open-Meteo Marine',
+          extrema: [
+            {
+              time: '2026-06-12T10:00:00.000Z',
+              date: '2026-06-12',
+              height: 1.2,
+              isHigh: true
+            }
+          ]
+        }
+      }
+    })
+
+    const result = await fetchTidesForCoordinates(62, 5)
+    expect(result.fallback).toBe('open_meteo')
+    expect(result.tides.data.source).toContain('Fallback')
+  })
+})