show more days of forecast, enable reload of forecasts

lib/components/compact_weather_data.dart

@@ -21,7 +21,7 @@ class _CompactWeatherDataState extends State<CompactWeatherData> {
             child: Column(
               children: [
                 Text(
-                  "${DateFormat('EEEE').format(DateTime.now().toLocal())}, ${DateTime.now().toLocal().day}.${DateTime.now().toLocal().month}.",
+                  "${DateFormat('EEEE').format(widget.dwm.dateOfDay())}, ${widget.dwm.dateOfDay().day}.${widget.dwm.dateOfDay().month}.",
                   style: Theme.of(context).textTheme.headline4,
                 ),
                 const SizedBox(height: 20),

lib/main.dart

@@ -13,12 +13,13 @@ class MyApp extends StatefulWidget {
 }
 
 class _MyAppState extends State<MyApp> {
-  late Future<DailyWeatherModel> futureAlbum;
+  late Future<List<DailyWeatherModel>> dailyWeather;
 
   @override
   void initState() {
     super.initState();
-    futureAlbum = BrightSkyAPI.fetchForecast(DateTime.now());
+    dailyWeather = BrightSkyAPI.fetchForecastForTimeRange(
+        DateTime.now(), DateTime.now().add(const Duration(days: 7)));
   }
 
   @override
@@ -34,25 +35,40 @@ class _MyAppState extends State<MyApp> {
         ),
       ),
       home: Scaffold(
-        appBar: AppBar(
-          title: const Text('Wetter heute in Harburg'),
-        ),
-        body: Center(
-          child: FutureBuilder<DailyWeatherModel>(
-            future: futureAlbum,
-            builder: (context, snapshot) {
-              if (snapshot.hasData) {
-                return CompactWeatherData(snapshot.data!);
-              } else if (snapshot.hasError) {
-                return Text('${snapshot.error}');
-              }
-
-              // By default, show a loading spinner.
-              return const CircularProgressIndicator();
-            },
+          appBar: AppBar(
+            title: const Text('Wetter in Harburg'),
           ),
-        ),
-      ),
+          body: RefreshIndicator(
+              onRefresh: () {
+                return Future(() {
+                  setState(() {
+                    dailyWeather = BrightSkyAPI.fetchForecastForTimeRange(
+                        DateTime.now(),
+                        DateTime.now().add(const Duration(days: 7)));
+                  });
+                });
+              },
+              child: SingleChildScrollView(
+                physics: const AlwaysScrollableScrollPhysics(),
+                child: Center(
+                  child: FutureBuilder<List<DailyWeatherModel>>(
+                    future: dailyWeather,
+                    builder: (context, snapshot) {
+                      if (snapshot.hasData) {
+                        return Column(
+                            children: snapshot.data!
+                                .map((e) => CompactWeatherData(e))
+                                .toList());
+                      } else if (snapshot.hasError) {
+                        return Text('${snapshot.error}');
+                      }
+
+                      // By default, show a loading spinner.
+                      return const CircularProgressIndicator();
+                    },
+                  ),
+                ),
+              ))),
     );
   }
 }

lib/models/daily_weather_model.dart

@@ -4,6 +4,10 @@ import 'dart:math';
 class DailyWeatherModel {
   late List<HourlyWeatherModel> hourlyForecasts;
 
+  DateTime dateOfDay() {
+    return hourlyForecasts[0].timestamp.toLocal();
+  }
+
   DailyWeatherModel.fromJson(Map<String, dynamic> json) {
     List dataPoints = json['weather'];
     hourlyForecasts = [];

lib/services/brightsky_api_service.dart

@@ -3,7 +3,7 @@ import 'package:http/http.dart' as http;
 import 'package:wetter/models/daily_weather_model.dart';
 
 class BrightSkyAPI {
-  static Future<DailyWeatherModel> fetchForecast(DateTime d) async {
+  static Future<DailyWeatherModel> fetchForecastOfSingleDay(DateTime d) async {
     String dt = "${d.year}-${d.month}-${d.day}";
     final response = await http.get(
         Uri.parse(
@@ -15,4 +15,38 @@ class BrightSkyAPI {
       throw Exception('Failed to load weather data');
     }
   }
+
+  static Future<List<DailyWeatherModel>> fetchForecastForTimeRange(
+      DateTime from, DateTime until) async {
+    String fromDay = "${from.year}-${from.month}-${from.day}";
+    String untilDay = "${until.year}-${until.month}-${until.day}";
+    final response = await http.get(
+        Uri.parse(
+            'https://api.brightsky.dev/weather?lat=53.43&lon=10&date=$fromDay&last_date=$untilDay&tz=Europe/Berlin'),
+        headers: {"Accept": "application/json"});
+    final Map<String, dynamic> responseAsJson = jsonDecode(response.body);
+    if (response.statusCode == 200) {
+      List<DailyWeatherModel> data = splitRangeToDaily(responseAsJson);
+      return data;
+    } else {
+      throw Exception('Failed to load weather data');
+    }
+  }
+
+  static List<DailyWeatherModel> splitRangeToDaily(Map<String, dynamic> json) {
+    List dataPoints = json['weather'];
+    List<DailyWeatherModel> response = [];
+    Map<String, dynamic> currPoint = {"weather": []};
+    String currDay = dataPoints[0]['timestamp'].substring(0, 10);
+    for (var point in dataPoints) {
+      if (currDay != point['timestamp'].substring(0, 10)) {
+        currDay = point['timestamp'].substring(0, 10);
+        response.add(DailyWeatherModel.fromJson(currPoint));
+        currPoint = {"weather": []};
+      } else {
+        currPoint['weather'].add(point);
+      }
+    }
+    return response;
+  }
 }