Implement Webuntis HTTP Api and Display

lib/api/webuntis/queries/getSubjects/getSubjects.dart

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+import 'dart:convert';
+
+import 'package:marianum_mobile/api/webuntis/webuntisApi.dart';
+
+import '../../apiResponse.dart';
+import 'getSubjectsResponse.dart';
+
+class GetSubjects extends WebuntisApi {
+  GetSubjects() : super("getSubjects", null);
+
+  @override
+  Future<GetSubjectsResponse> run() async {
+    String rawAnswer = await query(this);
+    return finalize(GetSubjectsResponse.fromJson(jsonDecode(rawAnswer)));
+  }
+}

lib/api/webuntis/queries/getSubjects/getSubjectsCache.dart

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+import 'dart:convert';
+
+import 'package:marianum_mobile/api/requestCache.dart';
+import 'package:marianum_mobile/api/webuntis/queries/getSubjects/getSubjectsResponse.dart';
+
+import 'getSubjects.dart';
+
+class GetSubjectsCache extends RequestCache<GetSubjectsResponse> {
+  GetSubjectsCache({onUpdate}) : super(60 * 60, onUpdate) {
+    start("subjects", "data");
+  }
+
+  @override
+  Future<GetSubjectsResponse> onLoad() {
+    return GetSubjects().run();
+  }
+
+  @override
+  onLocalData(String json) {
+    return GetSubjectsResponse.fromJson(jsonDecode(json));
+  }
+
+}

lib/api/webuntis/queries/getSubjects/getSubjectsResponse.dart

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+import 'package:json_annotation/json_annotation.dart';
+import 'package:marianum_mobile/api/webuntis/apiResponse.dart';
+
+part 'getSubjectsResponse.g.dart';
+
+@JsonSerializable(explicitToJson: true)
+class GetSubjectsResponse extends ApiResponse {
+  Set<GetSubjectsResponseObject> result;
+
+  GetSubjectsResponse(this.result);
+
+  factory GetSubjectsResponse.fromJson(Map<String, dynamic> json) => _$GetSubjectsResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$GetSubjectsResponseToJson(this);
+}
+
+@JsonSerializable(explicitToJson: true)
+class GetSubjectsResponseObject {
+  int id;
+  String name;
+  String longName;
+  String alternateName;
+  bool active;
+
+  GetSubjectsResponseObject(this.id, this.name, this.longName, this.alternateName, this.active);
+
+  factory GetSubjectsResponseObject.fromJson(Map<String, dynamic> json) => _$GetSubjectsResponseObjectFromJson(json);
+  Map<String, dynamic> toJson() => _$GetSubjectsResponseObjectToJson(this);
+}

lib/api/webuntis/queries/getSubjects/getSubjectsResponse.g.dart

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+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'getSubjectsResponse.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+GetSubjectsResponse _$GetSubjectsResponseFromJson(Map<String, dynamic> json) =>
+    GetSubjectsResponse(
+      (json['result'] as List<dynamic>)
+          .map((e) =>
+              GetSubjectsResponseObject.fromJson(e as Map<String, dynamic>))
+          .toSet(),
+    );
+
+Map<String, dynamic> _$GetSubjectsResponseToJson(
+        GetSubjectsResponse instance) =>
+    <String, dynamic>{
+      'result': instance.result.map((e) => e.toJson()).toList(),
+    };
+
+GetSubjectsResponseObject _$GetSubjectsResponseObjectFromJson(
+        Map<String, dynamic> json) =>
+    GetSubjectsResponseObject(
+      json['id'] as int,
+      json['name'] as String,
+      json['longName'] as String,
+      json['alternateName'] as String,
+      json['active'] as bool,
+    );
+
+Map<String, dynamic> _$GetSubjectsResponseObjectToJson(
+        GetSubjectsResponseObject instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'name': instance.name,
+      'longName': instance.longName,
+      'alternateName': instance.alternateName,
+      'active': instance.active,
+    };