fix(llc): Update channel state when member gets banned/unbanned.

Signed-off-by: xsahil03x <[email protected]>

packages/stream_chat/lib/src/client/channel.dart

@@ -1515,6 +1515,10 @@ class ChannelClientState {
 
     _listenMemberRemoved();
 
+    _listenMemberBanned();
+
+    _listenMemberUnbanned();
+
     _startCleaning();
 
     _startCleaningPinnedMessages();
@@ -1615,6 +1619,54 @@ class ChannelClientState {
     }));
   }
 
+  void _listenMemberBanned() {
+    _subscriptions.add(_channel
+        .on(EventType.userBanned)
+        .where((it) => it.cid != null) // filters channel ban from app ban
+        .listen(
+      (event) async {
+        final user = event.user!;
+        final member = await _channel
+            .queryMembers(filter: Filter.equal('id', user.id))
+            .then((it) => it.members.first);
+
+        _updateMember(member);
+      },
+    ));
+  }
+
+  void _listenMemberUnbanned() {
+    _subscriptions.add(_channel
+        .on(EventType.userUnbanned)
+        .where((it) => it.cid != null) // filters channel ban from app ban
+        .listen(
+      (event) async {
+        final user = event.user!;
+        final member = await _channel
+            .queryMembers(filter: Filter.equal('id', user.id))
+            .then((it) => it.members.first);
+
+        _updateMember(member);
+      },
+    ));
+  }
+
+  void _updateMember(Member member) {
+    final currentMembers = [...members];
+    final memberIndex = currentMembers.indexWhere(
+      (m) => m.userId == member.userId,
+    );
+
+    if (memberIndex == -1) return;
+    currentMembers[memberIndex] = member;
+
+    updateChannelState(
+      channelState.copyWith(
+        members: currentMembers,
+      ),
+    );
+  }
+
   /// Flag which indicates if [ChannelClientState] contain latest/recent messages or not.
   ///
   /// This flag should be managed by UI sdks.

packages/stream_chat/lib/src/core/models/member.dart

@@ -20,6 +20,7 @@ class Member extends Equatable {
     DateTime? createdAt,
     DateTime? updatedAt,
     this.banned = false,
+    this.banExpires,
     this.shadowBanned = false,
   })  : createdAt = createdAt ?? DateTime.now(),
         updatedAt = updatedAt ?? DateTime.now();
@@ -56,6 +57,9 @@ class Member extends Equatable {
   /// True if the member is banned from the channel
   final bool banned;
 
+  /// The date at which the ban will expire.
+  final DateTime? banExpires;
+
   /// True if the member is shadow banned from the channel
   final bool shadowBanned;
 
@@ -77,6 +81,7 @@ class Member extends Equatable {
     DateTime? createdAt,
     DateTime? updatedAt,
     bool? banned,
+    DateTime? banExpires,
     bool? shadowBanned,
   }) =>
       Member(
@@ -85,6 +90,7 @@ class Member extends Equatable {
         inviteRejectedAt: inviteRejectedAt ?? this.inviteRejectedAt,
         invited: invited ?? this.invited,
         banned: banned ?? this.banned,
+        banExpires: banExpires ?? this.banExpires,
         shadowBanned: shadowBanned ?? this.shadowBanned,
         role: role ?? this.role,
         userId: userId ?? this.userId,
@@ -106,6 +112,7 @@ class Member extends Equatable {
         userId,
         isModerator,
         banned,
+        banExpires,
         shadowBanned,
         createdAt,
         updatedAt,

packages/stream_chat/lib/src/core/models/member.g.dart

@@ -27,6 +27,9 @@ Member _$MemberFromJson(Map<String, dynamic> json) => Member(
           ? null
           : DateTime.parse(json['updated_at'] as String),
       banned: json['banned'] as bool? ?? false,
+      banExpires: json['ban_expires'] == null
+          ? null
+          : DateTime.parse(json['ban_expires'] as String),
       shadowBanned: json['shadow_banned'] as bool? ?? false,
     );
 
@@ -39,6 +42,7 @@ Map<String, dynamic> _$MemberToJson(Member instance) => <String, dynamic>{
       'user_id': instance.userId,
       'is_moderator': instance.isModerator,
       'banned': instance.banned,
+      'ban_expires': instance.banExpires?.toIso8601String(),
       'shadow_banned': instance.shadowBanned,
       'created_at': instance.createdAt.toIso8601String(),
       'updated_at': instance.updatedAt.toIso8601String(),

packages/stream_chat/lib/src/core/models/own_user.dart

@@ -26,6 +26,7 @@ class OwnUser extends User {
     bool online = false,
     Map<String, Object?> extraData = const {},
     bool banned = false,
+    DateTime? banExpires,
     List<String> teams = const [],
     String? language,
   }) : super(
@@ -39,6 +40,7 @@ class OwnUser extends User {
           online: online,
           extraData: extraData,
           banned: banned,
+          banExpires: banExpires,
           teams: teams,
           language: language,
         );
@@ -75,6 +77,7 @@ class OwnUser extends User {
     bool? online,
     Map<String, Object?>? extraData,
     bool? banned,
+    DateTime? banExpires,
     List<String>? teams,
     List<Mute>? channelMutes,
     List<Device>? devices,
@@ -91,6 +94,7 @@ class OwnUser extends User {
         // if null, it will be retrieved from extraData['image']
         image: image,
         banned: banned ?? this.banned,
+        banExpires: banExpires ?? this.banExpires,
         createdAt: createdAt ?? this.createdAt,
         updatedAt: updatedAt ?? this.updatedAt,
         lastActive: lastActive ?? this.lastActive,

packages/stream_chat/lib/src/core/models/own_user.g.dart

@@ -35,6 +35,9 @@ OwnUser _$OwnUserFromJson(Map<String, dynamic> json) => OwnUser(
       online: json['online'] as bool? ?? false,
       extraData: json['extra_data'] as Map<String, dynamic>? ?? const {},
       banned: json['banned'] as bool? ?? false,
+      banExpires: json['ban_expires'] == null
+          ? null
+          : DateTime.parse(json['ban_expires'] as String),
       teams:
           (json['teams'] as List<dynamic>?)?.map((e) => e as String).toList() ??
               const [],

packages/stream_chat/lib/src/core/models/user.dart

@@ -41,6 +41,7 @@ class User extends Equatable {
     Map<String, Object?> extraData = const {},
     this.online = false,
     this.banned = false,
+    this.banExpires,
     this.teams = const [],
     this.language,
   })  : createdAt = createdAt ?? DateTime.now(),
@@ -67,6 +68,8 @@ class User extends Equatable {
     'last_active',
     'online',
     'banned',
+    'ban_expires',
+    'dashboard_ban_channel_cid',
     'teams',
     'language',
   ];
@@ -129,14 +132,18 @@ class User extends Equatable {
   )
   final bool banned;
 
-  /// Map of custom user extraData.
-  @JsonKey(includeIfNull: false)
-  final Map<String, Object?> extraData;
+  /// The date at which the ban will expire.
+  @JsonKey(includeIfNull: false, toJson: Serializer.readOnly)
+  final DateTime? banExpires;
 
   /// The language this user prefers.
   @JsonKey(includeIfNull: false)
   final String? language;
 
+  /// Map of custom user extraData.
+  @JsonKey(includeIfNull: false)
+  final Map<String, Object?> extraData;
+
   /// List of users to list of userIds.
   static List<String>? toIds(List<User>? users) =>
       users?.map((u) => u.id).toList();
@@ -158,6 +165,7 @@ class User extends Equatable {
     bool? online,
     Map<String, Object?>? extraData,
     bool? banned,
+    DateTime? banExpires,
     List<String>? teams,
     String? language,
   }) =>
@@ -174,6 +182,7 @@ class User extends Equatable {
         online: online ?? this.online,
         extraData: extraData ?? this.extraData,
         banned: banned ?? this.banned,
+        banExpires: banExpires ?? this.banExpires,
         teams: teams ?? this.teams,
         language: language ?? this.language,
       );
@@ -186,6 +195,7 @@ class User extends Equatable {
         online,
         extraData,
         banned,
+        banExpires,
         teams,
         language,
       ];

packages/stream_chat/lib/src/core/models/user.g.dart

@@ -21,6 +21,9 @@ User _$UserFromJson(Map<String, dynamic> json) => User(
       extraData: json['extra_data'] as Map<String, dynamic>? ?? const {},
       online: json['online'] as bool? ?? false,
       banned: json['banned'] as bool? ?? false,
+      banExpires: json['ban_expires'] == null
+          ? null
+          : DateTime.parse(json['ban_expires'] as String),
       teams:
           (json['teams'] as List<dynamic>?)?.map((e) => e as String).toList() ??
               const [],
@@ -45,7 +48,8 @@ Map<String, dynamic> _$UserToJson(User instance) {
   writeNotNull('last_active', readonly(instance.lastActive));
   writeNotNull('online', readonly(instance.online));
   writeNotNull('banned', readonly(instance.banned));
-  val['extra_data'] = instance.extraData;
+  writeNotNull('ban_expires', readonly(instance.banExpires));
   writeNotNull('language', instance.language);
+  val['extra_data'] = instance.extraData;
   return val;
 }

packages/stream_chat/lib/src/event_type.dart

@@ -73,6 +73,12 @@ class EventType {
   /// Event sent when a member is removed to a channel
   static const String memberRemoved = 'member.removed';
 
+  /// Event sent when a member is removed to a channel
+  static const String userBanned = 'user.banned';
+
+  /// Event sent when a member is removed to a channel
+  static const String userUnbanned = 'user.unbanned';
+
   /// Event sent when a channel is hidden
   static const String channelHidden = 'channel.hidden';