Take into account creators when checking power levels (#44)

Fixes #40.

Reviewed-on: #44
Reviewed-by: Henry Hiles <henry@henryhiles.com>

lib/controllers/members_grouped_controller.dart

@@ -1,10 +1,10 @@
 import "package:fast_immutable_collections/fast_immutable_collections.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:nexus/controllers/members_by_status_controller.dart";
+import "package:nexus/controllers/room_creators_controller.dart";
 import "package:nexus/controllers/rooms_controller.dart";
 import "package:nexus/models/configs/members_by_status_config.dart";
 import "package:nexus/models/content/content.dart";
-import "package:nexus/models/content/create.dart";
 import "package:nexus/models/content/power_levels.dart";
 import "package:nexus/models/event.dart";
 
@@ -19,15 +19,9 @@ class MembersGroupedController
       RoomsController.provider.select((value) => value[config.roomId]),
     );
 
-    final createRowId = room?.state[EventType.create.type]?[""];
+    final roomCreators = room == null
-    final createEvent = createRowId == null ? null : room?.events[createRowId];
+        ? null
-    final createEventContent = switch (createEvent?.content) {
+        : ref.watch((RoomCreatorsController.provider(room)));
-      CreateContent content => content,
-      _ => null,
-    };
-    final creators = createEventContent?.additionalCreatorIds.add(
-      createEvent!.sender,
-    );
 
     final powerLevelsRowId = room?.state[EventType.powerLevels.type]?[""];
     final powerLevelsEvent = powerLevelsRowId == null
@@ -45,7 +39,7 @@ class MembersGroupedController
 
     return members
         .fold<IMap<int?, ISet<Event>>>(.new(), (result, event) {
-          final groupKey = creators?.contains(event.stateKey!) == true
+          final groupKey = roomCreators?.contains(event.stateKey!) == true
               ? null
               : content.users[event.stateKey!] ?? content.usersDefault;
 

lib/controllers/power_level_controller.dart

@@ -1,5 +1,6 @@
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:nexus/controllers/client_state_controller.dart";
+import "package:nexus/controllers/room_creators_controller.dart";
 import "package:nexus/controllers/rooms_controller.dart";
 import "package:nexus/models/configs/power_level_config.dart";
 import "package:nexus/models/content/content.dart";
@@ -22,6 +23,10 @@ class PowerLevelController extends Notifier<bool> {
       RoomsController.provider.select((value) => value[config.roomId]),
     );
 
+    final roomCreators = room == null
+        ? null
+        : ref.watch(RoomCreatorsController.provider(room));
+
     final eventRowId = room?.state[EventType.powerLevels.type]?[""];
 
     final event = eventRowId == null ? null : room?.events[eventRowId];
@@ -37,7 +42,10 @@ class PowerLevelController extends Notifier<bool> {
     int powerLevelOf(String userId) =>
         content.users[userId] ?? content.usersDefault;
 
-    final userLevel = powerLevelOf(user);
+    // room creators get power level infinite
+    final userLevel = roomCreators?.contains(user) == true
+        ? double.infinity
+        : powerLevelOf(user);
 
     return switch (config) {
       EventPowerLevelConfig(:final eventType) =>

lib/controllers/room_creators_controller.dart

@@ -0,0 +1,33 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/models/content/content.dart";
+import "package:nexus/models/content/create.dart";
+import "package:nexus/models/room.dart";
+
+class RoomCreatorsController extends Notifier<IList<String>> {
+  final Room room;
+  RoomCreatorsController(this.room);
+
+  @override
+  IList<String> build() {
+    final createRowId = room.state[EventType.create.type]?[""];
+    final createEvent = createRowId == null ? null : room.events[createRowId];
+
+    if (createEvent == null) return .new();
+
+    final createEventContent = switch (createEvent.content) {
+      CreateContent content => content,
+      _ => null,
+    };
+
+    return switch (createEventContent?.additionalCreatorIds) {
+      IList<String> creators => creators.add(createEvent.sender),
+      _ => .new([createEvent.sender]),
+    };
+  }
+
+  static final provider =
+      NotifierProvider.family<RoomCreatorsController, IList<String>, Room>(
+        RoomCreatorsController.new,
+      );
+}