Ready to implement the list of notifications

lib/models/notification.dart

@@ -0,0 +1,69 @@
+import 'package:flutter/widgets.dart';
+
+/// Notification model
+///
+/// @author Pierre HUBERT
+
+enum NotificationElementType {
+  USER_PAGE,
+  GROUP_PAGE,
+  CONVERSATION,
+  CONVERSATION_MESSAGE,
+  POST,
+  POST_TEXT,
+  POST_IMAGE,
+  POST_YOUTUBE,
+  POST_MOVIE,
+  POST_WEBLINK,
+  POST_PDF,
+  POST_TIMER,
+  POST_SURVEY,
+  COMMENT,
+  FRIENDSHIP_REQUEST,
+  GROUP_MEMBERSHIP,
+}
+
+enum NotificationType {
+  COMMENT_CREATED,
+  SENT_FRIEND_REQUEST,
+  ACCEPTED_FRIEND_REQUEST,
+  REJECTED_FRIEND_REQUEST,
+  ELEM_CREATED,
+  ELEM_UPDATED,
+  SENT_GROUP_MEMBERSHIP_INVITATION,
+  ACCEPTED_GROUP_MEMBERSHIP_INVITATION,
+  REJECTED_GROUP_MEMBERSHIP_INVITATION,
+  SENT_GROUP_MEMBERSHIP_REQUEST,
+  ACCEPTED_GROUP_MEMBERSHIP_REQUEST,
+  REJECTED_GROUP_MEMBERSHIP_REQUEST,
+}
+
+class Notification {
+  final int id;
+  final int timeCreate;
+  final bool seen;
+  final int fromUser;
+  final int onElemId;
+  final NotificationElementType onElemType;
+  final NotificationType type;
+  final int fromContainerId;
+  final NotificationElementType fromContainerType;
+
+  const Notification({
+    @required this.id,
+    @required this.timeCreate,
+    @required this.seen,
+    @required this.fromUser,
+    @required this.onElemId,
+    @required this.onElemType,
+    @required this.type,
+    @required this.fromContainerId,
+    @required this.fromContainerType,
+  })  : assert(id != null),
+        assert(timeCreate != null),
+        assert(seen != null),
+        assert(fromUser != null),
+        assert(onElemId != null),
+        assert(onElemType != null),
+        assert(type != null);
+}