simple detail view of flood station and readings

lib/Widgets/flood_station_list_view.dart

@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+
+import '../model/flood_station.dart';
+import '../pages/flood_station_page.dart';
+
+class FloodStationListView extends StatelessWidget {
+  const FloodStationListView({super.key, required List<FloodStation> stations})
+      : _stations = stations;
+
+  final List<FloodStation> _stations;
+
+  @override
+  Widget build(BuildContext context) {
+    return ListView.builder(
+      itemBuilder: (context, index) {
+        final item = _stations.elementAt(index);
+        return ListTile(
+          onTap: () => Navigator.of(context).push(MaterialPageRoute(
+            builder: (context) => FloodStationPage(floodStation: item),
+          )),
+          title: Text(item.label),
+          subtitle: Text(item.town),
+        );
+      },
+      itemCount: _stations.length,
+    );
+  }
+}

lib/model/flood_station.dart

@@ -1,17 +1,41 @@
 class FloodStation {
   final String id;
   final String town;
-  final double? latestReading;
+  final double lat;
+  final double long;
+  final DateTime? dateOpened;
+  final String catchmentName;
+  final String label;
 
   FloodStation({
     required this.id,
     required this.town,
-    this.latestReading,
+    required this.lat,
+    required this.long,
+    this.dateOpened,
+    required this.catchmentName,
+    required this.label,
   });
 
   factory FloodStation.fromMap(Map<String, dynamic> json) => FloodStation(
-        id: json['@id'] ?? '',
+        id: json['wiskiID'] ?? '',
         town: json['town'] ?? '',
-        latestReading: double.tryParse(json['latestReading']?.toString() ?? ''),
+        lat: parseDoubleValue(json['lat']),
+        long: parseDoubleValue(json['long']),
+        dateOpened: DateTime.tryParse(json['dateOpened'] ?? ''),
+        catchmentName: parseStringValue(json['catchmentName']),
+        label: parseStringValue(json['label']),
       );
+
+  static double parseDoubleValue(dynamic value) {
+    if (value is double) return value;
+    if (value is String) return double.parse(value);
+    return 0;
+  }
+
+  static String parseStringValue(dynamic value) {
+    if (value is String) return value;
+    if (value is List<dynamic>) return value[0];
+    return '';
+  }
 }

lib/model/reading.dart

@@ -0,0 +1,11 @@
+class Reading {
+  final DateTime dateTime;
+  final double value;
+
+  factory Reading.fromMap(Map<String, dynamic> json) => Reading(
+        dateTime: DateTime.parse(json['dateTime']),
+        value: json['value'],
+      );
+
+  Reading({required this.dateTime, required this.value});
+}

lib/pages/flood_station_page.dart

@@ -0,0 +1,36 @@
+import 'package:flutter/material.dart';
+
+import '../model/flood_station.dart';
+import '../model/reading.dart';
+import '../services/api.dart';
+
+class FloodStationPage extends StatelessWidget {
+  const FloodStationPage({super.key, required FloodStation floodStation})
+      : _floodStation = floodStation;
+  final FloodStation _floodStation;
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(_floodStation.label),
+      ),
+      body: FutureBuilder<List<Reading>>(
+          future: Api.fetchReadingsFromStation(_floodStation.id),
+          builder: (context, snapshot) {
+            if (snapshot.hasData) {
+              return ListView.builder(
+                itemBuilder: (context, index) {
+                  return ListTile(
+                    title:
+                        Text(snapshot.data!.elementAt(index).value.toString()),
+                  );
+                },
+                itemCount: snapshot.data!.length,
+              );
+            } else {
+              return Placeholder();
+            }
+          }),
+    );
+  }
+}

lib/pages/landing_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 
+import '../Widgets/flood_station_list_view.dart';
 import '../model/flood_station.dart';
 import '../services/api.dart';
 
@@ -13,16 +14,11 @@ class LandingPage extends StatelessWidget {
     if (!snapshot.hasData) {
       return CircularProgressIndicator();
     } else if (snapshot.hasData) {
-      return ListView.builder(
-        itemBuilder: (context, index) {
-          return ListTile(
-            title: Text(snapshot.data!.elementAt(index).town),
-          );
-        },
-        itemCount: snapshot.data!.length,
-      );
+      return FloodStationListView(stations: snapshot.data!);
+    } else if (snapshot.hasError) {
+      return Text(snapshot.error.toString());
     } else {
-      return Placeholder();
+      return Text('An unknown error occured.');
     }
   }
 

lib/services/api.dart

@@ -2,6 +2,7 @@ import 'package:http/http.dart' as http;
 import 'dart:convert';
 
 import '../model/flood_station.dart';
+import '../model/reading.dart';
 
 class Api {
   static const String _rootUrl =
@@ -18,4 +19,20 @@ class Api {
     }
     return stations;
   }
+
+  static Future<List<Reading>> fetchReadingsFromStation(
+      String stationId) async {
+    List<Reading> readings = [];
+    final dateTime = DateTime.now().subtract(Duration(days: 1));
+    final url =
+        '$_rootUrl/id/stations/$stationId/readings?since=${dateTime.toIso8601String()}';
+    final response = await http.get(Uri.parse(url));
+    if (response.statusCode == 200) {
+      final Map<String, dynamic> jsonStr = jsonDecode(response.body);
+      for (final str in jsonStr['items']) {
+        readings.add(Reading.fromMap(str));
+      }
+    }
+    return readings;
+  }
 }