Add dialog for kick/ban

lib/helpers/extensions/capitalized.dart

@@ -0,0 +1,4 @@
+extension Capitalized on String {
+  String get capitalized =>
+      "${this[0].toUpperCase()}${substring(1).toLowerCase()}";
+}

lib/models/requests/set_membership_request.dart

@@ -8,6 +8,7 @@ abstract class SetMembershipRequest with _$SetMembershipRequest {
     required String userId,
     required String roomId,
 
+    String? reason,
     @JsonKey(name: "action") required MembershipAction action,
     @Default(false) @JsonKey(name: "msc4293_redact_events") bool redact,
   }) = _SetMembershipRequest;

lib/widgets/chat_page/user_popover.dart

@@ -1,16 +1,19 @@
 import "package:flutter/material.dart";
+import "package:flutter_hooks/flutter_hooks.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:nexus/controllers/client_controller.dart";
 import "package:nexus/controllers/client_state_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/helpers/extensions/capitalized.dart";
 import "package:nexus/models/membership.dart";
 import "package:nexus/models/membership_status.dart";
 import "package:nexus/models/requests/set_membership_request.dart";
 import "package:nexus/widgets/avatar_or_hash.dart";
 import "package:nexus/main.dart";
 import "package:nexus/widgets/chat_page/expandable_image.dart";
+import "package:nexus/widgets/form_text_input.dart";
 
 class UserPopover extends ConsumerWidget {
   final Membership member;
@@ -25,6 +28,56 @@ class UserPopover extends ConsumerWidget {
       SelectedRoomController.provider.select((room) => room?.metadata?.id),
     );
 
+    void showMembershipDialog(MembershipAction action) => showDialog(
+      context: context,
+      builder: (context) => HookBuilder(
+        builder: (context) {
+          final actionReasonController = useTextEditingController();
+          return AlertDialog(
+            title: Text("${action.name.capitalized} ${member.userId}"),
+            content: Column(
+              mainAxisSize: MainAxisSize.min,
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text(
+                  "Are you sure you want to ${action.name} ${member.userId}?",
+                ),
+                SizedBox(height: 12),
+                FormTextInput(
+                  required: false,
+                  capitalize: true,
+                  controller: actionReasonController,
+                  title: "Reason for ${action.name} (optional)",
+                ),
+              ],
+            ),
+            actions: [
+              TextButton(
+                onPressed: Navigator.of(context).pop,
+                child: Text("Cancel"),
+              ),
+              TextButton(
+                onPressed: () {
+                  Navigator.of(context).pop();
+                  client
+                      .setMembership(
+                        SetMembershipRequest(
+                          userId: member.userId,
+                          roomId: roomId!,
+                          action: action,
+                          reason: actionReasonController.text,
+                        ),
+                      )
+                      .onError(showError);
+                },
+                child: Text(action.name.capitalized),
+              ),
+            ],
+          );
+        },
+      ),
+    );
+
     return Column(
       spacing: 16,
       crossAxisAlignment: CrossAxisAlignment.stretch,
@@ -79,16 +132,10 @@ class UserPopover extends ConsumerWidget {
             runSpacing: 8,
             children: [
               FilledButton.icon(onPressed: null, label: Text("Message")),
+              if (member.status == MembershipStatus.join ||
+                  member.status == MembershipStatus.invite)
                 FilledButton.icon(
-                onPressed: () => client
+                  onPressed: () => showMembershipDialog(MembershipAction.kick),
-                    .setMembership(
-                      SetMembershipRequest(
-                        userId: member.userId,
-                        roomId: roomId,
-                        action: MembershipAction.kick,
-                      ),
-                    )
-                    .onError(showError),
                   label: Text("Kick"),
                   style: ButtonStyle(
                     backgroundColor: WidgetStatePropertyAll(
@@ -100,17 +147,11 @@ class UserPopover extends ConsumerWidget {
                   ),
                 ),
               ElevatedButton.icon(
-                onPressed: () => client
+                onPressed: () => showMembershipDialog(
-                    .setMembership(
+                  member.status == MembershipStatus.ban
-                      SetMembershipRequest(
-                        userId: member.userId,
-                        roomId: roomId,
-                        action: member.status == MembershipStatus.ban
                       ? MembershipAction.unban
                       : MembershipAction.ban,
                 ),
-                    )
-                    .onError(showError),
                 label: Text(
                   member.status == MembershipStatus.ban ? "Unban" : "Ban",
                 ),