api/notif: Rename FcmMessageStreamRecipient to FcmMessageChannelRecipient

lib/api/notifications.dart

@@ -142,7 +142,7 @@ class MessageFcmMessage extends FcmMessageWithIdentity {
         break;
       case FcmMessageDmRecipient(:var allRecipientIds):
         result['pm_users'] = const _IntListConverter().toJson(allRecipientIds);
-      case FcmMessageStreamRecipient():
+      case FcmMessageChannelRecipient():
         result['stream_id'] = const _IntConverter().toJson(recipient.streamId);
         if (recipient.streamName != null) result['stream'] = recipient.streamName;
         result['topic'] = recipient.topic;
@@ -159,15 +159,15 @@ sealed class FcmMessageRecipient {
     // There's also a `recipient_type` field, but we don't really need it.
     // The presence or absence of `stream_id` is just as informative.
     return json.containsKey('stream_id')
-      ? FcmMessageStreamRecipient.fromJson(json)
+      ? FcmMessageChannelRecipient.fromJson(json)
       : FcmMessageDmRecipient.fromJson(json);
   }
 }
 
 /// An [FcmMessageRecipient] for a Zulip message to a stream.
 @JsonSerializable(fieldRename: FieldRename.snake, createToJson: false)
 @_IntConverter()
-class FcmMessageStreamRecipient extends FcmMessageRecipient {
+class FcmMessageChannelRecipient extends FcmMessageRecipient {
   // Sending the stream ID in notifications is new in Zulip Server 5.
   // But handling the lack of it would add complication, and we don't strictly
   // need to -- we intend (#268) to cut pre-server-5 support before beta release.
@@ -182,10 +182,10 @@ class FcmMessageStreamRecipient extends FcmMessageRecipient {
 
   final String topic;
 
-  FcmMessageStreamRecipient({required this.streamId, required this.streamName, required this.topic});
+  FcmMessageChannelRecipient({required this.streamId, required this.streamName, required this.topic});
 
-  factory FcmMessageStreamRecipient.fromJson(Map<String, dynamic> json) =>
-    _$FcmMessageStreamRecipientFromJson(json);
+  factory FcmMessageChannelRecipient.fromJson(Map<String, dynamic> json) =>
+    _$FcmMessageChannelRecipientFromJson(json);
 }
 
 /// An [FcmMessageRecipient] for a Zulip message that was a DM.

lib/notifications/display.dart

@@ -111,7 +111,7 @@ class NotificationDisplayManager {
           name: zulipLocalizations.notifSelfUser),
         messages: [],
         isGroupConversation: switch (data.recipient) {
-          FcmMessageStreamRecipient() => true,
+          FcmMessageChannelRecipient() => true,
           FcmMessageDmRecipient(:var allRecipientIds) when allRecipientIds.length > 2 => true,
           FcmMessageDmRecipient() => false,
         });
@@ -123,9 +123,9 @@ class NotificationDisplayManager {
     // group-DM threads (pending #794) get titled with the latest sender, rather than
     // the first.
     messagingStyle.conversationTitle = switch (data.recipient) {
-      FcmMessageStreamRecipient(:var streamName?, :var topic) =>
+      FcmMessageChannelRecipient(:var streamName?, :var topic) =>
         '#$streamName > $topic',
-      FcmMessageStreamRecipient(:var topic) =>
+      FcmMessageChannelRecipient(:var topic) =>
         '#(unknown channel) > $topic', // TODO get stream name from data
       FcmMessageDmRecipient(:var allRecipientIds) when allRecipientIds.length > 2 =>
         zulipLocalizations.notifGroupDmConversationLabel(
@@ -220,7 +220,7 @@ class NotificationDisplayManager {
 
   static String _conversationKey(MessageFcmMessage data, String groupKey) {
     final conversation = switch (data.recipient) {
-      FcmMessageStreamRecipient(:var streamId, :var topic) => 'stream:$streamId:$topic',
+      FcmMessageChannelRecipient(:var streamId, :var topic) => 'stream:$streamId:$topic',
       FcmMessageDmRecipient(:var allRecipientIds) => 'dm:${allRecipientIds.join(',')}',
     };
     return '$groupKey|$conversation';
@@ -263,7 +263,7 @@ class NotificationDisplayManager {
     if (account == null) return; // TODO(log)
 
     final narrow = switch (data.recipient) {
-      FcmMessageStreamRecipient(:var streamId, :var topic) =>
+      FcmMessageChannelRecipient(:var streamId, :var topic) =>
         TopicNarrow(streamId, topic),
       FcmMessageDmRecipient(:var allRecipientIds) =>
         DmNarrow(allRecipientIds: allRecipientIds, selfUserId: account.userId),

test/api/notifications_test.dart

@@ -76,7 +76,7 @@ void main() {
         ..senderAvatarUrl.equals(Uri.parse(streamJson['sender_avatar_url']!))
         ..senderFullName.equals(streamJson['sender_full_name']!)
         ..zulipMessageId.equals(12345)
-        ..recipient.isA<FcmMessageStreamRecipient>().which((it) => it
+        ..recipient.isA<FcmMessageChannelRecipient>().which((it) => it
           ..streamId.equals(42)
           ..streamName.equals(streamJson['stream']!)
           ..topic.equals(streamJson['topic']!))
@@ -94,7 +94,7 @@ void main() {
 
     test('optional fields missing cause no error', () {
       check(parse({ ...streamJson }..remove('stream')))
-        .recipient.isA<FcmMessageStreamRecipient>().which((it) => it
+        .recipient.isA<FcmMessageChannelRecipient>().which((it) => it
           ..streamId.equals(42)
           ..streamName.isNull());
     });
@@ -251,7 +251,7 @@ extension MessageFcmMessageChecks on Subject<MessageFcmMessage> {
   Subject<String> get content => has((x) => x.content, 'content');
 }
 
-extension FcmMessageStreamRecipientChecks on Subject<FcmMessageStreamRecipient> {
+extension FcmMessageChannelRecipientChecks on Subject<FcmMessageChannelRecipient> {
   Subject<int> get streamId => has((x) => x.streamId, 'streamId');
   Subject<String?> get streamName => has((x) => x.streamName, 'streamName');
   Subject<String> get topic => has((x) => x.topic, 'topic');