modified: app.py

modified:   static/css/style.css
	modified:   templates/base.html
	modified:   templates/index.html
	modified:   templates/weather.html
	new file:   translations.py

app.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
-from flask import Flask, render_template, request, jsonify
+from flask import Flask, render_template, request, jsonify, redirect, make_response, g
+from translations import TRANSLATIONS
 from geopy.geocoders import Nominatim
 from geopy.exc import GeocoderTimedOut
 import math
@@ -19,6 +20,18 @@ import requests as _requests
 app = Flask(__name__)
 app.logger.setLevel(logging.INFO)
 
+@app.before_request
+def _set_language():
+    lang = request.cookies.get("lang", "de")
+    if lang not in TRANSLATIONS:
+        lang = "de"
+    g.lang = lang
+    g.T = TRANSLATIONS[lang]
+
+@app.context_processor
+def _inject_i18n():
+    return {"T": g.get("T", TRANSLATIONS["de"]), "lang": g.get("lang", "de")}
+
 _GEOLOCATOR = Nominatim(user_agent="skywatcher-app/1.0")
 
 # ── Zeitzone ────────────────────────────────────────────────────────────
@@ -810,6 +823,16 @@ def filter_unrealistic_warnings(warnings, forecast, now_local=None):
 
     return result
 
+@app.route("/set-lang")
+def set_lang():
+    lang = request.args.get("lang", "de")
+    if lang not in TRANSLATIONS:
+        lang = "de"
+    dest = request.args.get("next") or request.referrer or "/"
+    resp = make_response(redirect(dest))
+    resp.set_cookie("lang", lang, max_age=60*60*24*365, samesite="Lax")
+    return resp
+
 @app.route("/")
 def index():
     return render_template("index.html")
@@ -840,14 +863,14 @@ def wetter():
 
     if lat is None:
         if not ort:
-            return render_template("index.html", error="Bitte einen Ort eingeben.")
+            return render_template("index.html", error=g.T["error_no_place"])
         lat, lon, display_name, state_hint, location_names = geocode_location(ort)
         if lat is None:
-            return render_template("index.html", error=f'Ort "{ort}" konnte nicht gefunden werden.')
+            return render_template("index.html", error=g.T["error_place_not_found"].format(ort=ort))
     loc_tz, location_tz = _get_location_tz(lat, lon)
     forecast, mosmix_station = get_mosmix_forecast(lat, lon, hours=240, loc_tz=loc_tz)
     if not forecast:
-        return render_template("index.html", error="Keine Wetterdaten verfügbar. Bitte später erneut versuchen.")
+        return render_template("index.html", error=g.T["error_no_data"])
     station_name = mosmix_station.get("name", ort)
     station_id   = mosmix_station.get("station_id", "–")
     station_lat  = float(mosmix_station.get("latitude", lat))