refactor: use hash code as key

lib/models/github.dart

@@ -127,6 +127,73 @@ class GithubEventRelease {
       _$GithubEventReleaseFromJson(json);
 }
 
+// Notification
+@JsonSerializable(fieldRename: FieldRename.snake)
+class GithubNotificationItem {
+  String id;
+  String htmlUrl;
+  GithubNotificationItemSubject subject;
+  DateTime updatedAt;
+  GithubNotificationItemRepo repository;
+  bool unread;
+
+  @JsonKey(ignore: true)
+  String state;
+
+  String get key => '_$hashCode';
+
+  GithubNotificationItem();
+
+  factory GithubNotificationItem.fromJson(Map<String, dynamic> json) =>
+      _$GithubNotificationItemFromJson(json);
+}
+
+@JsonSerializable(fieldRename: FieldRename.snake)
+class GithubNotificationItemSubject {
+  String title;
+  String type;
+  String url;
+
+  int _number;
+  int get number {
+    if (_number == null) {
+      _number = int.parse(url?.split('/')?.last ?? '0');
+    }
+    return _number;
+  }
+
+  GithubNotificationItemSubject();
+
+  factory GithubNotificationItemSubject.fromJson(Map<String, dynamic> json) =>
+      _$GithubNotificationItemSubjectFromJson(json);
+}
+
+@JsonSerializable(fieldRename: FieldRename.snake)
+class GithubNotificationItemRepo {
+  String fullName;
+
+  Tuple2<String, String> _repo;
+  String get owner {
+    if (_repo == null) {
+      _repo = parseRepositoryFullName(fullName);
+    }
+    return _repo.item1;
+  }
+
+  String get name {
+    if (_repo == null) {
+      _repo = parseRepositoryFullName(fullName);
+    }
+    return _repo.item2;
+  }
+
+  GithubNotificationItemRepo();
+
+  factory GithubNotificationItemRepo.fromJson(Map<String, dynamic> json) =>
+      _$GithubNotificationItemRepoFromJson(json);
+}
+
+// Trending
 @JsonSerializable()
 class GithubTrendingItem {
   String author;

lib/models/github.g.dart

@@ -164,6 +164,63 @@ Map<String, dynamic> _$GithubEventReleaseToJson(GithubEventRelease instance) =>
       'tag_name': instance.tagName,
     };
 
+GithubNotificationItem _$GithubNotificationItemFromJson(
+    Map<String, dynamic> json) {
+  return GithubNotificationItem()
+    ..id = json['id'] as String
+    ..htmlUrl = json['html_url'] as String
+    ..subject = json['subject'] == null
+        ? null
+        : GithubNotificationItemSubject.fromJson(
+            json['subject'] as Map<String, dynamic>)
+    ..updatedAt = json['updated_at'] == null
+        ? null
+        : DateTime.parse(json['updated_at'] as String)
+    ..repository = json['repository'] == null
+        ? null
+        : GithubNotificationItemRepo.fromJson(
+            json['repository'] as Map<String, dynamic>)
+    ..unread = json['unread'] as bool;
+}
+
+Map<String, dynamic> _$GithubNotificationItemToJson(
+        GithubNotificationItem instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'html_url': instance.htmlUrl,
+      'subject': instance.subject,
+      'updated_at': instance.updatedAt?.toIso8601String(),
+      'repository': instance.repository,
+      'unread': instance.unread,
+    };
+
+GithubNotificationItemSubject _$GithubNotificationItemSubjectFromJson(
+    Map<String, dynamic> json) {
+  return GithubNotificationItemSubject()
+    ..title = json['title'] as String
+    ..type = json['type'] as String
+    ..url = json['url'] as String;
+}
+
+Map<String, dynamic> _$GithubNotificationItemSubjectToJson(
+        GithubNotificationItemSubject instance) =>
+    <String, dynamic>{
+      'title': instance.title,
+      'type': instance.type,
+      'url': instance.url,
+    };
+
+GithubNotificationItemRepo _$GithubNotificationItemRepoFromJson(
+    Map<String, dynamic> json) {
+  return GithubNotificationItemRepo()..fullName = json['full_name'] as String;
+}
+
+Map<String, dynamic> _$GithubNotificationItemRepoToJson(
+        GithubNotificationItemRepo instance) =>
+    <String, dynamic>{
+      'full_name': instance.fullName,
+    };
+
 GithubTrendingItem _$GithubTrendingItemFromJson(Map<String, dynamic> json) {
   return GithubTrendingItem()
     ..author = json['author'] as String

lib/models/notification.dart

@@ -1,54 +1,31 @@
 import 'package:flutter/material.dart';
-import 'package:timeago/timeago.dart' as timeago;
+import 'package:git_touch/models/github.dart';
+import 'package:tuple/tuple.dart';
 
-class NotificationPayload {
-  String id;
-  String type;
-  String owner;
-  String name;
-  int number;
-  String title;
-  String updateAt;
-  bool unread;
-
-  String state;
-
-  String get key => '_' + number.toString();
-
-  NotificationPayload.fromJson(input) {
-    id = input['id'];
-    type = input['subject']['type'];
-    name = input['repository']['name'];
-    owner = input['repository']['owner']['login'];
-
-    String url = input['subject']['url'];
-
-    if (type == 'Issue' || type == 'PullRequest') {
-      String numberStr = url.split('/').lastWhere((_) => true);
-      number = int.parse(numberStr);
-    } else {
-      // Fimber.d(input);
-    }
-
-    title = input['subject']['title'];
-    updateAt = timeago.format(DateTime.parse(input['updated_at']));
-    unread = input['unread'];
-  }
-}
+import '../utils/utils.dart';
 
 class NotificationGroup {
-  String owner;
-  String name;
-  get repo => owner + '/' + name;
-  List<NotificationPayload> items = [];
+  String fullName;
+  List<GithubNotificationItem> items = [];
 
-  // Add heading _ to fix number case
-  // - => __
-  // . => ___
-  String get key =>
-      ('_' + owner + '_' + name).replaceAll('-', '__').replaceAll('.', '___');
+  Tuple2<String, String> _repo;
+  String get owner {
+    if (_repo == null) {
+      _repo = parseRepositoryFullName(fullName);
+    }
+    return _repo.item1;
+  }
 
-  NotificationGroup(this.owner, this.name);
+  String get name {
+    if (_repo == null) {
+      _repo = parseRepositoryFullName(fullName);
+    }
+    return _repo.item2;
+  }
+
+  String get key => '_$hashCode';
+
+  NotificationGroup(this.fullName);
 }
 
 class NotificationModel with ChangeNotifier {

lib/screens/notification.dart

@@ -7,6 +7,7 @@ import 'package:git_touch/widgets/app_bar_title.dart';
 import 'package:provider/provider.dart';
 import 'package:git_touch/models/notification.dart';
 import 'package:git_touch/models/auth.dart';
+import 'package:git_touch/models/github.dart';
 import '../widgets/notification_item.dart';
 import '../widgets/list_group.dart';
 import '../widgets/empty.dart';
@@ -21,7 +22,8 @@ class NotificationScreenState extends State<NotificationScreen> {
   Future<Map<String, NotificationGroup>> fetchNotifications(int index) async {
     List items = await Provider.of<AuthModel>(context).getWithCredentials(
         '/notifications?all=${index == 2}&participating=${index == 1}');
-    var ns = items.map((item) => NotificationPayload.fromJson(item)).toList();
+    final ns =
+        items.map((item) => GithubNotificationItem.fromJson(item)).toList();
 
     if (index == 0) {
       Provider.of<NotificationModel>(context).setCount(ns.length);
@@ -30,9 +32,9 @@ class NotificationScreenState extends State<NotificationScreen> {
     Map<String, NotificationGroup> _groupMap = {};
 
     ns.forEach((item) {
-      String repo = item.owner + '/' + item.name;
+      final repo = item.repository.fullName;
       if (_groupMap[repo] == null) {
-        _groupMap[repo] = NotificationGroup(item.owner, item.name);
+        _groupMap[repo] = NotificationGroup(repo);
       }
 
       _groupMap[repo].items.add(item);
@@ -44,7 +46,8 @@ class NotificationScreenState extends State<NotificationScreen> {
       _groupMap.forEach((repo, group) {
         // Check if issue and pull request exist
         if (group.items.where((item) {
-          return item.type == 'Issue' || item.type == 'PullRequest';
+          return item.subject.type == 'Issue' ||
+              item.subject.type == 'PullRequest';
         }).isEmpty) {
           return;
         }
@@ -53,19 +56,17 @@ class NotificationScreenState extends State<NotificationScreen> {
             '${group.key}: repository(owner: "${group.owner}", name: "${group.name}") {';
 
         group.items.forEach((item) {
-          var key = item.key;
-
-          switch (item.type) {
+          switch (item.subject.type) {
             case 'Issue':
               schema += '''
-$key: issue(number: ${item.number}) {
+${item.key}: issue(number: ${item.subject.number}) {
   state
 }
 ''';
               break;
             case 'PullRequest':
               schema += '''
-$key: pullRequest(number: ${item.number}) {
+${item.key}: pullRequest(number: ${item.subject.number}) {
   state
 }
 ''';
@@ -102,20 +103,19 @@ $key: pullRequest(number: ${item.number}) {
       BuildContext context,
       MapEntry<String, NotificationGroup> entry,
       Map<String, NotificationGroup> groupMap) {
-    var group = entry.value;
-    var repo = group.repo;
+    final group = entry.value;
     return ListGroup(
       title: Row(
         mainAxisAlignment: MainAxisAlignment.spaceBetween,
         children: <Widget>[
           Text(
-            repo,
+            group.fullName,
             style: TextStyle(fontSize: 16, fontWeight: FontWeight.w600),
           ),
           GestureDetector(
             onTap: () async {
               await Provider.of<AuthModel>(context)
-                  .putWithCredentials('/repos/$repo/notifications');
+                  .putWithCredentials('/repos/${group.fullName}/notifications');
               // await _onSwitchTab(); // TODO:
             },
             child: Icon(

lib/widgets/notification_item.dart

@@ -1,15 +1,15 @@
 import 'package:fimber/fimber.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/cupertino.dart';
-import 'package:git_touch/models/notification.dart';
 import 'package:git_touch/widgets/issue_icon.dart';
-import '../utils/utils.dart';
+import 'package:git_touch/models/github.dart';
+import 'package:git_touch/utils/utils.dart';
 import 'package:git_touch/models/auth.dart';
 import 'package:provider/provider.dart';
-import 'link.dart';
+import 'package:git_touch/widgets/link.dart';
 
 class NotificationItem extends StatefulWidget {
-  final NotificationPayload payload;
+  final GithubNotificationItem payload;
   final Function markAsRead;
 
   NotificationItem({
@@ -23,7 +23,7 @@ class NotificationItem extends StatefulWidget {
 }
 
 class _NotificationItemState extends State<NotificationItem> {
-  NotificationPayload get payload => widget.payload;
+  GithubNotificationItem get payload => widget.payload;
   bool loading = false;
 
   Widget _buildIcon(IconData data, [Color color = Colors.black54]) {
@@ -31,7 +31,7 @@ class _NotificationItemState extends State<NotificationItem> {
   }
 
   Widget _buildIconData() {
-    switch (payload.type) {
+    switch (payload.subject.type) {
       case 'Issue':
         switch (payload.state) {
           case 'OPEN':
@@ -60,7 +60,7 @@ class _NotificationItemState extends State<NotificationItem> {
       case 'Commit':
         return _buildIcon(Octicons.git_commit);
       default:
-        Fimber.d('Unhandled notification type: ${payload.type}');
+        Fimber.d('Unhandled notification type: ${payload.subject.type}');
         return _buildIcon(Octicons.octoface);
     }
   }
@@ -80,7 +80,7 @@ class _NotificationItemState extends State<NotificationItem> {
       });
       try {
         await Provider.of<AuthModel>(context)
-            .patchWithCredentials('/notifications/threads/' + payload.id);
+            .patchWithCredentials('/notifications/threads/${payload.id}');
         widget.markAsRead();
       } finally {
         if (mounted) {
@@ -93,13 +93,14 @@ class _NotificationItemState extends State<NotificationItem> {
   }
 
   String get _url {
-    switch (payload.type) {
+    switch (payload.subject.type) {
       case 'Issue':
+        return '/${payload.repository.owner}/${payload.repository.name}/issues/${payload.subject.number}';
       case 'PullRequest':
-        final resource = payload.type == 'PullRequest' ? 'pulls' : 'issues';
-        return '/${payload.owner}/${payload.name}/$resource/${payload.number}';
+        return '/${payload.repository.owner}/${payload.repository.name}/pulls/${payload.subject.number}';
       case 'Release':
-        return 'https://github.com/${payload.owner}/${payload.name}/releases/tag/${payload.title}';
+      // TODO: title
+      // return 'https://github.com/${payload.repository.owner}/${payload.repository.name}/releases/tag/${payload.title}';
       case 'Commit':
         return '';
       default:
@@ -124,7 +125,7 @@ class _NotificationItemState extends State<NotificationItem> {
               ),
               Expanded(
                 child: Text(
-                  payload.title,
+                  payload.subject.title,
                   overflow: TextOverflow.ellipsis,
                   style: TextStyle(fontSize: 15),
                 ),