feat: implement feed view

 feat: implement feed view

Author: praeclarumjj3

ios/Runner/AppDelegate.swift

@@ -8,6 +8,11 @@ import Flutter
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
     GeneratedPluginRegistrant.register(with: self)
+
+    if #available(iOS 10.0, *) {
+      UNUserNotificationCenter.current().delegate = self as? UNUserNotificationCenterDelegate
+    }
+
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
 }

lib/data/constants/assets.dart

@@ -19,6 +19,8 @@ class AppAssets {
   static const String clock = '$_iconsRoot/clock.svg';
   static const String trueRadioButton = '$_iconsRoot/true_radio_button.svg';
   static const String falseRadioButton = '$_iconsRoot/false_radio_button.svg';
+  static const String refresh = '$_iconsRoot/refresh.svg';
+  static const String userIcon = '$_iconsRoot/default_user_icon.svg';
 
   // Images
   static const String circle1 = '$_imagesRoot/circle1.svg';

lib/data/constants/colors.dart

@@ -10,6 +10,10 @@ class AppColors {
   static const Color grey6 = Color(0xFF919191);
   static const Color grey7 = Color(0xFFF3F4F7);
   static const Color grey8 = Color(0xFFC8C8C8);
+  static const Color grey9 = Color(0xFFFAFAFA);
+  static const Color grey10 = Color(0xFFE5E5E5);
+  static const Color acceptedGreen = Color(0xFF4CAF50);
+  static const Color errorRed = Color(0xFFEB5757);
   static const Color transparent = Colors.transparent;
 
   static const Color primary = Color(0xFF3366FF);

lib/data/constants/styles.dart

@@ -48,5 +48,6 @@ class AppStyles {
       headline5: h5,
       headline6: h6,
     ),
+    scaffoldBackgroundColor: AppColors.white,
   );
 }

lib/data/services/remote/notification_service.dart

@@ -0,0 +1,73 @@
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+import 'package:flutter_native_timezone/flutter_native_timezone.dart';
+import 'package:timezone/data/latest.dart' as tz;
+import 'package:timezone/timezone.dart' as tz;
+
+class NotificationService {
+  static final _notification = FlutterLocalNotificationsPlugin();
+
+  static NotificationDetails _notificationDetails() {
+    return const NotificationDetails(
+      android: AndroidNotificationDetails(
+        'channelId',
+        'channelName',
+        importance: Importance.max,
+      ),
+      iOS: IOSNotificationDetails(),
+    );
+  }
+
+  static Future init() async {
+    const settings = InitializationSettings(
+      android: AndroidInitializationSettings('@mipmap/ic_launcher'),
+      iOS: IOSInitializationSettings(),
+    );
+
+    await _notification.initialize(
+      settings,
+      onSelectNotification: (payload) {},
+    );
+
+    tz.initializeTimeZones();
+    final locationName = await FlutterNativeTimezone.getLocalTimezone();
+    tz.setLocalLocation(tz.getLocation(locationName));
+  }
+
+  static Future setNotification({
+    required DateTime scheduledDate,
+    int id = 0,
+    String? title,
+    String? body,
+    String? payload,
+  }) async {
+    _notification.zonedSchedule(
+      id,
+      title,
+      body,
+      tz.TZDateTime.from(scheduledDate, tz.local),
+      _notificationDetails(),
+      uiLocalNotificationDateInterpretation:
+          UILocalNotificationDateInterpretation.absoluteTime,
+      androidAllowWhileIdle: true,
+    );
+  }
+
+  static Future cancelNotification({String? name}) async {
+    final pendingNotifications =
+        await _notification.pendingNotificationRequests();
+
+    for (final notification in pendingNotifications) {
+      if (notification.title == name) {
+        await _notification.cancel(notification.id);
+        return;
+      }
+    }
+  }
+
+  static Future<List<String?>> getPendingNotification() async {
+    final pendingNotifications =
+        await _notification.pendingNotificationRequests();
+
+    return pendingNotifications.map((notif) => notif.title).toList();
+  }
+}

lib/domain/models/feed.dart

@@ -8,7 +8,7 @@ part 'feed.g.dart';
 @freezed
 class Feed with _$Feed {
   factory Feed({
-    required String userId,
+    @JsonKey(name: 'user_id') required String userId,
     required String username,
     required String? fullname,
     String? picture,

lib/domain/models/grouped_feed.dart

@@ -7,7 +7,7 @@ part 'grouped_feed.g.dart';
 class GroupedFeed with _$GroupedFeed {
   factory GroupedFeed({
     required String username,
-    required String userId,
+    @JsonKey(name: 'user_id') required String userId,
     String? fullname,
     String? picture,
     String? name,

lib/domain/repositories/cp_repository.dart

@@ -1,5 +1,6 @@
 import 'dart:convert';
 
+import '../../data/constants/strings.dart';
 import '../../data/services/remote/api_service.dart';
 import '../models/activity_details.dart';
 import '../models/contest.dart';
@@ -38,7 +39,8 @@ class CPRepository {
     if (response['status_code'] == 200) {
       return Contest.fromJson(response['data']);
     }
-    return null;
+
+    throw Exception(AppStrings.genericError);
   }
 
   static Future<List<Feed>?> getFeed({DateTime? before}) async {
@@ -53,11 +55,17 @@ class CPRepository {
     );
 
     if (response['status_code'] == 200) {
+      if (response['data'].runtimeType == String &&
+          response['data'] == 'null') {
+        return null;
+      }
+
       return List<Feed>.from(
-        json.decode(response['data']).map((e) => Feed.fromJson(e)),
+        response['data'].map((e) => Feed.fromJson(e)),
       );
     }
-    return null;
+
+    throw Exception(AppStrings.genericError);
   }
 
   static Future<List<Submission>?> getSubmissionList(String uid) async {

…tation/contests/widgets/empty_state.dart …tion/components/widgets/empty_state.dartlib/presentation/contests/widgets/empty_state.dart renamed to lib/presentation/components/widgets/empty_state.dart lib/presentation/contests/widgets/empty_state.dart renamed to lib/presentation/components/widgets/empty_state.dart

@@ -3,10 +3,10 @@ import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 
 import '../../../data/constants/assets.dart';
-import '../../../data/constants/colors.dart';
 
 class EmptyState extends StatelessWidget {
-  const EmptyState({Key? key}) : super(key: key);
+  const EmptyState({required this.description, Key? key}) : super(key: key);
+  final String description;
 
   @override
   Widget build(BuildContext context) {
@@ -17,12 +17,10 @@ class EmptyState extends StatelessWidget {
         Container(
           width: double.infinity,
           padding: EdgeInsets.all(25.r),
-          child: const Text(
-            'No contests found, please adjust your filters!',
+          child: Text(
+            description,
             textAlign: TextAlign.center,
-            style: TextStyle(
-              color: AppColors.grey1,
-            ),
+            style: Theme.of(context).textTheme.headline6,
           ),
         ),
       ],

lib/presentation/contests/bloc/contests_bloc.dart

@@ -4,9 +4,12 @@ import 'package:freezed_annotation/freezed_annotation.dart';
 
 import '../../../data/constants/strings.dart';
 import '../../../data/services/local/storage_service.dart';
+import '../../../data/services/remote/notification_service.dart';
 import '../../../domain/models/contest.dart';
 import '../../../domain/models/contest_filter.dart';
+import '../../../domain/models/status.dart';
 import '../../../domain/repositories/cp_repository.dart';
+import '../../../utils/snackbar.dart';
 
 part 'contests_event.dart';
 part 'contests_state.dart';
@@ -21,14 +24,22 @@ class ContestsBloc extends Bloc<ContestsEvent, ContestsState> {
   }
 
   void _fetchContests(FetchContests event, Emitter<ContestsState> emit) async {
-    final contest = await CPRepository.contestList();
+    Contest? contest;
+    try {
+      contest = await CPRepository.contestList();
+    } on Exception catch (_) {
+      showSnackBar(message: AppStrings.genericError);
+      emit(state.copyWith(status: const Status.error(AppStrings.genericError)));
+      return;
+    }
+
     _ongoing = [...?contest?.ongoing];
     _upcoming = [...?contest?.upcoming];
     applyFilter();
     final contests = [..._filteredUpcoming, ..._filteredOngoing];
     emit(state.copyWith(
       contests: contests,
-      isLoading: false,
+      status: const Status(),
       filter: _filter,
     ));
   }
@@ -92,8 +103,9 @@ class ContestsBloc extends Bloc<ContestsEvent, ContestsState> {
   ContestFilter? _filter;
   List<Ongoing> _ongoing = [], _filteredOngoing = [];
   List<Upcoming> _upcoming = [], _filteredUpcoming = [];
+  List<String?> pendingNotification = [];
 
-  void init() {
+  void init() async {
     final exists = StorageService.exists(AppStrings.filterKey);
     if (!exists) {
       StorageService.filter = ContestFilter(
@@ -106,9 +118,14 @@ class ContestsBloc extends Bloc<ContestsEvent, ContestsState> {
     }
 
     _filter = StorageService.filter;
+    pendingNotification = await NotificationService.getPendingNotification();
     add(const FetchContests());
   }
 
+  bool reminderSet(String? title) {
+    return pendingNotification.contains(title);
+  }
+
   void saveFilter() {
     StorageService.filter = _filter;
     add(const UpdateContestsList());