Show temperature of today after starting app

lib/components/compact_weather_data.dart

@@ -0,0 +1,46 @@
+import 'package:flutter/material.dart';
+import 'package:intl/intl.dart';
+import 'package:weather_icons/weather_icons.dart';
+import 'package:wetter/models/daily_weather_model.dart';
+
+class CompactWeatherData extends StatefulWidget {
+  final DailyWeatherModel dwm;
+
+  const CompactWeatherData(this.dwm, {Key? key}) : super(key: key);
+
+  @override
+  State<CompactWeatherData> createState() => _CompactWeatherDataState();
+}
+
+class _CompactWeatherDataState extends State<CompactWeatherData> {
+  @override
+  Widget build(BuildContext context) {
+    return Card(
+        child: Padding(
+            padding: const EdgeInsets.all(20),
+            child: Column(
+              children: [
+                Text(
+                  "${DateFormat('EEEE').format(DateTime.now().toLocal())}, ${DateTime.now().toLocal().day}.${DateTime.now().toLocal().month}.",
+                  style: Theme.of(context).textTheme.headline4,
+                ),
+                const SizedBox(height: 20),
+                Row(mainAxisAlignment: MainAxisAlignment.center, children: [
+                  const Icon(WeatherIcons.thermometer),
+                  Text(
+                    "${widget.dwm.dailyMaxTemp()} °C",
+                    style: Theme.of(context).textTheme.bodyLarge,
+                  )
+                ]),
+                const SizedBox(height: 20),
+                Row(mainAxisAlignment: MainAxisAlignment.center, children: [
+                  const Icon(WeatherIcons.thermometer_exterior),
+                  Text(
+                    "${widget.dwm.dailyMinTemp()} °C",
+                    style: Theme.of(context).textTheme.bodyLarge,
+                  )
+                ]),
+              ],
+            )));
+  }
+}

lib/main.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:wetter/components/compact_weather_data.dart';
 import 'package:wetter/models/daily_weather_model.dart';
 import 'package:wetter/services/brightsky_api_service.dart';
 
@@ -17,7 +18,7 @@ class _MyAppState extends State<MyApp> {
   @override
   void initState() {
     super.initState();
-    futureAlbum = BrightSkyAPI.fetchForecast();
+    futureAlbum = BrightSkyAPI.fetchForecast(DateTime.now());
   }
 
   @override
@@ -26,17 +27,22 @@ class _MyAppState extends State<MyApp> {
       title: 'Fetch Data Example',
       theme: ThemeData(
         primarySwatch: Colors.blue,
+        textTheme: const TextTheme(
+          headline1: TextStyle(fontSize: 72.0, fontWeight: FontWeight.bold),
+          headline6: TextStyle(fontSize: 36.0, fontStyle: FontStyle.italic),
+          bodyText2: TextStyle(fontSize: 14.0, fontFamily: 'Hind'),
+        ),
       ),
       home: Scaffold(
         appBar: AppBar(
-          title: const Text('Fetch Data Example'),
+          title: const Text('Wetter heute in Harburg'),
         ),
         body: Center(
           child: FutureBuilder<DailyWeatherModel>(
             future: futureAlbum,
             builder: (context, snapshot) {
               if (snapshot.hasData) {
-                return Text(snapshot.data!.dailyAverageTemp());
+                return CompactWeatherData(snapshot.data!);
               } else if (snapshot.hasError) {
                 return Text('${snapshot.error}');
               }

lib/models/daily_weather_model.dart

@@ -1,4 +1,5 @@
 import 'package:wetter/models/hourly_weather_model.dart';
+import 'dart:math';
 
 class DailyWeatherModel {
   late List<HourlyWeatherModel> hourlyForecasts;
@@ -16,6 +17,37 @@ class DailyWeatherModel {
     for (var forecast in hourlyForecasts) {
       tempSum = tempSum + forecast.temperature;
     }
-    return (tempSum / hourlyForecasts.length).toString();
+    return (tempSum / hourlyForecasts.length).round().toString();
+  }
+
+  List<int> tempList() {
+    List<int> temps = [];
+    for (HourlyWeatherModel hf in hourlyForecasts) {
+      temps.add(hf.temperature.round());
+    }
+    return temps;
+  }
+
+  String dailyMaxTemp() {
+    return tempList().reduce(max).toString();
+  }
+
+  String dailyMinTemp() {
+    return tempList().reduce(min).toString();
+  }
+
+  String? cumulatedSunshineMinutes() {
+    bool dataCorrect = true;
+    int csm = 0;
+    for (var hf in hourlyForecasts) {
+      if (hf.sunshine == null) {
+        return null;
+      } else {
+        csm = csm + hf.sunshine!;
+      }
+    }
+    if (dataCorrect) {
+      return csm.toString();
+    }
   }
 }

lib/services/brightsky_api_service.dart

@@ -3,10 +3,11 @@ import 'package:http/http.dart' as http;
 import 'package:wetter/models/daily_weather_model.dart';
 
 class BrightSkyAPI {
-  static Future<DailyWeatherModel> fetchForecast() async {
+  static Future<DailyWeatherModel> fetchForecast(DateTime d) async {
+    String dt = "${d.year}-${d.month}-${d.day}";
     final response = await http.get(
         Uri.parse(
-            'https://api.brightsky.dev/weather?lat=53.43&lon=20&date=2022-08-30&tz=Europe/Berlin'),
+            'https://api.brightsky.dev/weather?lat=53.43&lon=10&date=$dt&tz=Europe/Berlin'),
         headers: {"Accept": "application/json"});
     if (response.statusCode == 200) {
       return DailyWeatherModel.fromJson(jsonDecode(response.body));