Add powerlevel checks

lib/controllers/power_level_controller.dart

@@ -0,0 +1,48 @@
+import "package:collection/collection.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/client_state_controller.dart";
+import "package:nexus/controllers/selected_room_controller.dart";
+import "package:nexus/models/configs/power_level_config.dart";
+import "package:nexus/models/requests/membership_action.dart";
+
+class PowerLevelController extends Notifier<bool> {
+  final PowerLevelConfig config;
+  PowerLevelController(this.config);
+
+  @override
+  bool build() {
+    final room = ref.watch(SelectedRoomController.provider);
+    final event = room?.events.firstWhereOrNull(
+      (event) => event.rowId == room.state["m.room.power_levels"]?[""],
+    );
+    final user = ref.watch(ClientStateController.provider)?.userId;
+    if (event == null || user == null) return false;
+
+    final users = (event.content["users"] as Map<String, dynamic>? ?? {});
+    final events = (event.content["events"] as Map<String, dynamic>? ?? {});
+
+    final userLevel = users.containsKey(user)
+        ? (users[user] as int)
+        : (event.content["users_default"] as int? ?? 0);
+
+    final requiredLevel = switch (config.action) {
+      MembershipAction.ban ||
+      MembershipAction.unban => (event.content["ban"] as int? ?? 50),
+      MembershipAction.kick => (event.content["kick"] as int? ?? 50),
+      MembershipAction.invite => (event.content["invite"] as int? ?? 0),
+      null =>
+        events.containsKey(config.eventType)
+            ? (events[config.eventType] as int)
+            : (config.isStateEvent
+                  ? (event.content["state_default"] as int? ?? 50)
+                  : (event.content["events_default"] as int? ?? 0)),
+    };
+
+    return userLevel >= requiredLevel;
+  }
+
+  static final provider = NotifierProvider.autoDispose
+      .family<PowerLevelController, bool, PowerLevelConfig>(
+        PowerLevelController.new,
+      );
+}

lib/models/configs/power_level_config.dart

@@ -0,0 +1,16 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+import "package:nexus/models/requests/membership_action.dart";
+part "power_level_config.freezed.dart";
+part "power_level_config.g.dart";
+
+@freezed
+abstract class PowerLevelConfig with _$PowerLevelConfig {
+  const factory PowerLevelConfig({
+    @Default(false) bool isStateEvent,
+    required String eventType,
+    MembershipAction? action,
+  }) = _PowerLevelConfig;
+
+  factory PowerLevelConfig.fromJson(Map<String, Object?> json) =>
+      _$PowerLevelConfigFromJson(json);
+}

lib/models/requests/membership_action.dart

@@ -0,0 +1,4 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+
+@JsonEnum()
+enum MembershipAction { ban, kick, unban, invite }

lib/models/requests/set_membership_request.dart

@@ -1,4 +1,5 @@
 import "package:freezed_annotation/freezed_annotation.dart";
+import "package:nexus/models/requests/membership_action.dart";
 part "set_membership_request.freezed.dart";
 part "set_membership_request.g.dart";
 
@@ -16,6 +17,3 @@ abstract class SetMembershipRequest with _$SetMembershipRequest {
   factory SetMembershipRequest.fromJson(Map<String, Object?> json) =>
       _$SetMembershipRequestFromJson(json);
 }
-
-@JsonEnum()
-enum MembershipAction { ban, kick, unban, invite }

lib/widgets/chat_page/composer/chat_box.dart

@@ -5,6 +5,8 @@ import "package:flutter_chat_core/flutter_chat_core.dart";
 import "package:flutter_hooks/flutter_hooks.dart";
 import "package:fluttertagger/fluttertagger.dart";
 import "package:hooks_riverpod/hooks_riverpod.dart";
+import "package:nexus/controllers/power_level_controller.dart";
+import "package:nexus/models/configs/power_level_config.dart";
 import "package:nexus/models/relation_type.dart";
 import "package:nexus/widgets/chat_page/composer/mention_overlay.dart";
 import "package:nexus/widgets/chat_page/composer/relation_preview.dart";
@@ -42,6 +44,7 @@ class ChatBox extends HookConsumerWidget {
     }
 
     void send() {
+      if (controller.value.text.isEmpty) return;
       onSend(
         controller.value.formattedText,
         shouldMention: shouldMention.value,
@@ -69,6 +72,12 @@ class ChatBox extends HookConsumerWidget {
       fontWeight: FontWeight.bold,
     );
 
+    final canSendMessages = ref.watch(
+      PowerLevelController.provider(
+        PowerLevelConfig(eventType: "m.room.message"),
+      ),
+    );
+
     return Positioned(
       bottom: 0,
       left: 0,
@@ -95,6 +104,7 @@ class ChatBox extends HookConsumerWidget {
                   children: [
                     PopupMenuButton(
                       tooltip: "Add media",
+                      enabled: canSendMessages,
                       itemBuilder: (context) => [
                         PopupMenuItem(
                           child: ListTile(
@@ -136,12 +146,11 @@ class ChatBox extends HookConsumerWidget {
                         },
                         triggerCharacterAndStyles: {"@": style, "#": style},
                         builder: (context, key) => TextFormField(
-                          // enabled: room.canSendDefaultMessages,
+                          enabled: canSendMessages,
                           maxLines: 12,
                           minLines: 1,
                           decoration: InputDecoration(
-                            hintText:
+                            hintText: canSendMessages
-                                true // TODO: room.canSendDefaultMessages
                                 ? "Your message here..."
                                 : "You don't have permission to send messages in this room...",
                             border: InputBorder.none,
@@ -156,7 +165,7 @@ class ChatBox extends HookConsumerWidget {
                       ),
                     ),
                     IconButton(
-                      onPressed: send,
+                      onPressed: !canSendMessages ? null : send,
                       // onPressed: room.canSendDefaultMessages ? send : null,
                       icon: Icon(Icons.send),
                       tooltip: "Send message",

lib/widgets/chat_page/user_popover.dart

@@ -4,11 +4,14 @@ import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:intl/intl.dart";
 import "package:nexus/controllers/client_controller.dart";
 import "package:nexus/controllers/client_state_controller.dart";
+import "package:nexus/controllers/power_level_controller.dart";
 import "package:nexus/controllers/profile_controller.dart";
 import "package:nexus/controllers/selected_room_controller.dart";
 import "package:nexus/helpers/extensions/better_when.dart";
+import "package:nexus/models/configs/power_level_config.dart";
 import "package:nexus/models/membership.dart";
 import "package:nexus/models/membership_status.dart";
+import "package:nexus/models/requests/membership_action.dart";
 import "package:nexus/models/requests/set_membership_request.dart";
 import "package:nexus/widgets/avatar_or_hash.dart";
 import "package:nexus/main.dart";
@@ -150,7 +153,17 @@ class UserPopover extends ConsumerWidget {
             runSpacing: 8,
             children: [
               FilledButton.icon(onPressed: null, label: Text("Message")),
-              if (member.status == MembershipStatus.join ||
+
+              if (ref.watch(
+                        PowerLevelController.provider(
+                          PowerLevelConfig(
+                            eventType: "m.room.member",
+                            action: MembershipAction.kick,
+                            isStateEvent: true,
+                          ),
+                        ),
+                      ) &&
+                      member.status == MembershipStatus.join ||
                   member.status == MembershipStatus.invite)
                 FilledButton.icon(
                   onPressed: () => showMembershipDialog(MembershipAction.kick),
@@ -164,24 +177,33 @@ class UserPopover extends ConsumerWidget {
                     ),
                   ),
                 ),
-              ElevatedButton.icon(
+              if (ref.watch(
-                onPressed: () => showMembershipDialog(
+                PowerLevelController.provider(
-                  member.status == MembershipStatus.ban
+                  PowerLevelConfig(
-                      ? MembershipAction.unban
+                    eventType: "m.room.member",
-                      : MembershipAction.ban,
+                    action: MembershipAction.ban,
-                ),
+                    isStateEvent: true,
-                label: Text(
+                  ),
-                  member.status == MembershipStatus.ban ? "Unban" : "Ban",
+                ),
-                ),
+              ))
-                style: ButtonStyle(
+                ElevatedButton.icon(
-                  backgroundColor: WidgetStatePropertyAll(
+                  onPressed: () => showMembershipDialog(
-                    theme.colorScheme.errorContainer,
+                    member.status == MembershipStatus.ban
-                  ),
+                        ? MembershipAction.unban
-                  foregroundColor: WidgetStatePropertyAll(
+                        : MembershipAction.ban,
-                    theme.colorScheme.onErrorContainer,
+                  ),
+                  label: Text(
+                    member.status == MembershipStatus.ban ? "Unban" : "Ban",
+                  ),
+                  style: ButtonStyle(
+                    backgroundColor: WidgetStatePropertyAll(
+                      theme.colorScheme.errorContainer,
+                    ),
+                    foregroundColor: WidgetStatePropertyAll(
+                      theme.colorScheme.onErrorContainer,
+                    ),
                   ),
                 ),
-              ),
             ],
           ),
       ],