feat(web): finalize Discord OAuth and platform-agnostic auth

- Bump version to 2.8.0 across all versioned files
- Fix AuthorizedSessionServiceTests for platform-agnostic identity
- Update Razor Pages to use *ForCurrentUserAsync APIs
- Add backward-compatible constructors to WebGameGroup/WebGroupManager
- Make DiscordOAuthOptions properties non-required for config binding

Bump version → 2.8.0

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -6,7 +6,7 @@ on:
       - main 
 
 env:
-  VERSION: 2.7.2
+  VERSION: 2.8.0
 
 jobs:
   # ЧАСТЬ 1: Собираем образы и кладем в Gitea (чтобы делиться с ребятами)

Directory.Build.props

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <Version>2.7.2</Version>
+    <Version>2.8.0</Version>
     <TargetFramework>net10.0</TargetFramework>
     <LangVersion>preview</LangVersion>
     <Nullable>enable</Nullable>

README.md

@@ -4,7 +4,7 @@
 
 Проект разработан с упором на производительность, архитектуру Vertical Slice, Native AOT (для бота) и удобство развертывания с использованием .NET Aspire.
 
-**Текущая версия:** `v2.7.2`.
+**Текущая версия:** `v2.8.0`.
 
 ---
 

compose.yaml

@@ -49,7 +49,7 @@ services:
         crond -f
 
   bot:
-    image: git.codeanddice.ru/toutsu/gmrelay-bot:2.7.2
+    image: git.codeanddice.ru/toutsu/gmrelay-bot:2.8.0
     restart: always
     depends_on:
       db:
@@ -67,7 +67,7 @@ services:
       retries: 3
 
   discord:
-    image: git.codeanddice.ru/toutsu/gmrelay-discord-bot:2.7.2
+    image: git.codeanddice.ru/toutsu/gmrelay-discord-bot:2.8.0
     restart: always
     depends_on:
       db:
@@ -84,7 +84,7 @@ services:
       retries: 3
 
   web:
-    image: git.codeanddice.ru/toutsu/gmrelay-web:2.7.2
+    image: git.codeanddice.ru/toutsu/gmrelay-web:2.8.0
     restart: always
     depends_on:
       db:

src/GmRelay.Web/Components/Pages/CampaignTemplates.razor

@@ -185,7 +185,7 @@
     private Guid selectedGroupId;
     private Guid? deletingTemplateId;
     private bool isCreatingTemplate;
-    private long telegramId;
+    private string? externalUserId;
     private string? errorMessage;
     private string? successMessage;
     private CampaignTemplateEditModel templateModel = new();
@@ -195,13 +195,13 @@
     protected override async Task OnInitializedAsync()
     {
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
-        if (!authState.User.TryGetTelegramId(out telegramId))
+        if (!authState.User.TryGetPlatformIdentity(out var platform, out externalUserId))
         {
             Navigation.NavigateTo("/access-denied");
             return;
         }
 
-        groups = await SessionService.GetGroupsForGmAsync(telegramId);
+        groups = await SessionService.GetGroupsForCurrentUserAsync();
         selectedGroupId = groups.FirstOrDefault()?.Id ?? Guid.Empty;
 
         if (selectedGroupId != Guid.Empty)
@@ -228,7 +228,7 @@
         campaignTemplates = null;
         campaignTemplateModels = [];
 
-        var templates = await SessionService.GetCampaignTemplatesForGmAsync(selectedGroupId, telegramId);
+        var templates = await SessionService.GetCampaignTemplatesForCurrentUserAsync(selectedGroupId);
         if (templates is null)
         {
             Navigation.NavigateTo("/access-denied");
@@ -260,9 +260,8 @@
 
         try
         {
-            await SessionService.CreateCampaignTemplateForGmAsync(
+            await SessionService.CreateCampaignTemplateForCurrentUserAsync(
                 selectedGroupId,
-                telegramId,
                 new CreateCampaignTemplateRequest(
                     templateModel.Name,
                     templateModel.Title,
@@ -298,7 +297,7 @@
 
         try
         {
-            await SessionService.DeleteCampaignTemplateForGmAsync(template.Id, telegramId);
+            await SessionService.DeleteCampaignTemplateForCurrentUserAsync(template.Id);
             successMessage = "Шаблон кампании удалён.";
             await LoadTemplates();
         }

src/GmRelay.Web/Components/Pages/EditSession.razor

@@ -87,13 +87,13 @@
     protected override async Task OnInitializedAsync()
     {
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
-        if (!authState.User.TryGetTelegramId(out var telegramId))
+        if (!authState.User.TryGetPlatformIdentity(out var platform, out var externalUserId))
         {
             Navigation.NavigateTo("/access-denied");
             return;
         }
 
-        session = await SessionService.GetSessionForGmAsync(SessionId, telegramId);
+        session = await SessionService.GetSessionForCurrentUserAsync(SessionId);
         if (session is null)
         {
             Navigation.NavigateTo("/access-denied");
@@ -114,7 +114,7 @@
         try
         {
             var authState = await AuthStateProvider.GetAuthenticationStateAsync();
-            if (!authState.User.TryGetTelegramId(out var telegramId))
+            if (!authState.User.TryGetPlatformIdentity(out var platform, out var externalUserId))
             {
                 Navigation.NavigateTo("/access-denied");
                 return;
@@ -122,7 +122,7 @@
 
             var utcTime = new DateTimeOffset(model.ScheduledAtLocal, TimeSpan.FromHours(3)).ToUniversalTime().UtcDateTime;
 
-            await SessionService.UpdateSessionForGmAsync(SessionId, telegramId, model.Title, utcTime, model.JoinLink, model.MaxPlayers);
+            await SessionService.UpdateSessionForCurrentUserAsync(SessionId, model.Title, utcTime, model.JoinLink, model.MaxPlayers);
             Navigation.NavigateTo($"/group/{session!.GroupId}");
         }
         catch (SessionAccessDeniedException)

src/GmRelay.Web/Components/Pages/GroupDetails.razor

@@ -40,8 +40,8 @@
                     </span>
                     @if (groupManagement.CurrentUserIsOwner && manager.Role == GroupManagerRoleExtensions.CoGmValue)
                     {
-                        <button type="button" class="btn-gm btn-gm-outline" style="font-size: 0.75rem; padding: 0.25rem 0.5rem;" disabled="@(removingCoGmId == manager.TelegramId)" @onclick="() => RemoveCoGm(manager.TelegramId)">
-                            @(removingCoGmId == manager.TelegramId ? "⏳ Удаляем..." : "Убрать")
+                        <button type="button" class="btn-gm btn-gm-outline" style="font-size: 0.75rem; padding: 0.25rem 0.5rem;" disabled="@(removingCoGmId == manager.ExternalUserId)" @onclick="() => RemoveCoGm(manager.ExternalUserId ?? manager.TelegramId.ToString())">
+                            @(removingCoGmId == manager.ExternalUserId ? "⏳ Удаляем..." : "Убрать")
                         </button>
                     }
                 }
@@ -403,9 +403,9 @@
     private Guid? promotingSessionId;
     private Guid? processingBatchId;
     private Guid? processingTemplateId;
-    private long? removingCoGmId;
+    private string? removingCoGmId;
     private bool isAddingCoGm;
-    private long telegramId;
+    private string? externalUserId;
     private string? errorMessage;
     private string? successMessage;
     private CoGmEditModel coGmModel = new();
@@ -417,7 +417,7 @@
     protected override async Task OnInitializedAsync()
     {
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
-        if (!authState.User.TryGetTelegramId(out telegramId))
+        if (!authState.User.TryGetPlatformIdentity(out var platform, out externalUserId))
         {
             Navigation.NavigateTo("/access-denied");
             return;
@@ -428,21 +428,21 @@
 
     private async Task LoadSessions()
     {
-        groupManagement = await SessionService.GetGroupManagementForGmAsync(GroupId, telegramId);
+        groupManagement = await SessionService.GetGroupManagementForCurrentUserAsync(GroupId);
         if (groupManagement is null)
         {
             Navigation.NavigateTo("/access-denied");
             return;
         }
 
-        sessions = await SessionService.GetUpcomingSessionsForGmAsync(GroupId, telegramId);
+        sessions = await SessionService.GetUpcomingSessionsForCurrentUserAsync(GroupId);
         if (sessions is null)
         {
             Navigation.NavigateTo("/access-denied");
             return;
         }
 
-        campaignTemplates = await SessionService.GetCampaignTemplatesForGmAsync(GroupId, telegramId);
+        campaignTemplates = await SessionService.GetCampaignTemplatesForCurrentUserAsync(GroupId);
         if (campaignTemplates is null)
         {
             Navigation.NavigateTo("/access-denied");
@@ -470,8 +470,8 @@
         {
             await SessionService.AddCoGmForOwnerAsync(
                 GroupId,
-                telegramId,
-                coGmModel.TelegramId.Value,
+                "Telegram",
+                coGmModel.TelegramId.Value.ToString(),
                 coGmModel.DisplayName,
                 coGmModel.TelegramUsername);
 
@@ -493,15 +493,15 @@
         }
     }
 
-    private async Task RemoveCoGm(long coGmTelegramId)
+    private async Task RemoveCoGm(string coGmExternalUserId)
     {
         errorMessage = null;
         successMessage = null;
-        removingCoGmId = coGmTelegramId;
+        removingCoGmId = coGmExternalUserId;
 
         try
         {
-            await SessionService.RemoveCoGmForOwnerAsync(GroupId, telegramId, coGmTelegramId);
+            await SessionService.RemoveCoGmForOwnerAsync(GroupId, "Telegram", coGmExternalUserId);
             successMessage = "Co-GM удалён.";
             await LoadSessions();
         }
@@ -527,7 +527,7 @@
 
         try
         {
-            await SessionService.PromoteWaitlistedPlayerForGmAsync(sessionId, telegramId);
+            await SessionService.PromoteWaitlistedPlayerForCurrentUserAsync(sessionId);
             await LoadSessions();
         }
         catch (SessionAccessDeniedException)
@@ -559,7 +559,7 @@
             loadingParticipantsSessionId = sessionId;
             try
             {
-                var participants = await SessionService.GetSessionParticipantsForGmAsync(sessionId, telegramId);
+                var participants = await SessionService.GetSessionParticipantsForCurrentUserAsync(sessionId);
                 participantsCache[sessionId] = participants ?? [];
             }
             catch (Exception ex)
@@ -582,7 +582,7 @@
 
         try
         {
-            await SessionService.RemovePlayerFromSessionForGmAsync(sessionId, telegramId, participantId);
+            await SessionService.RemovePlayerFromSessionForCurrentUserAsync(sessionId, participantId);
             participantsCache.Remove(sessionId);
             successMessage = "Игрок исключён.";
             await LoadSessions();
@@ -658,10 +658,9 @@
 
         try
         {
-            await SessionService.UpdateBatchDetailsForGmAsync(batch.BatchId, telegramId, batch.Title, batch.JoinLink);
-            await SessionService.UpdateBatchNotificationModeForGmAsync(
+            await SessionService.UpdateBatchDetailsForCurrentUserAsync(batch.BatchId, batch.Title, batch.JoinLink);
+            await SessionService.UpdateBatchNotificationModeForCurrentUserAsync(
                 batch.BatchId,
-                telegramId,
                 SessionNotificationModeExtensions.FromDatabaseValue(batch.NotificationMode));
             successMessage = "Настройки batch обновлены.";
             await LoadSessions();
@@ -696,7 +695,7 @@
         try
         {
             var utcTime = new DateTimeOffset(batch.FirstScheduledAtLocal, TimeSpan.FromHours(3)).ToUniversalTime().UtcDateTime;
-            await SessionService.RescheduleBatchForGmAsync(batch.BatchId, telegramId, utcTime, batch.IntervalDays);
+            await SessionService.RescheduleBatchForCurrentUserAsync(batch.BatchId, utcTime, batch.IntervalDays);
             successMessage = "Расписание пачки обновлено.";
             await LoadSessions();
         }
@@ -726,7 +725,7 @@
                 ? BatchCloneInterval.NextMonth
                 : BatchCloneInterval.NextWeek;
 
-            var clonedBatch = await SessionService.CloneBatchForGmAsync(batch.BatchId, telegramId, interval);
+            var clonedBatch = await SessionService.CloneBatchForCurrentUserAsync(batch.BatchId, interval);
             successMessage = $"Пачка склонирована: {clonedBatch.SessionCount} игр.";
             await LoadSessions();
         }
@@ -759,7 +758,7 @@
                 return;
             }
 
-            var createdBatch = await SessionService.CreateBatchFromCampaignTemplateForGmAsync(template.Id, telegramId, utcTime);
+            var createdBatch = await SessionService.CreateBatchFromCampaignTemplateForCurrentUserAsync(template.Id, utcTime);
             successMessage = $"Batch создан из шаблона: {createdBatch.SessionCount} игр.";
             await LoadSessions();
         }
@@ -836,7 +835,7 @@
     private bool IsTemplateBusy(CampaignTemplateUsageModel template) => processingTemplateId == template.Id;
 
     private string CurrentUserRole =>
-        groupManagement?.Managers.FirstOrDefault(manager => manager.TelegramId == telegramId)?.Role
+        groupManagement?.Managers.FirstOrDefault(manager => manager.ExternalUserId == externalUserId)?.Role
         ?? GroupManagerRoleExtensions.CoGmValue;
 
     private static string FormatRole(string role) =>

src/GmRelay.Web/Components/Pages/GroupStats.razor

@@ -5,7 +5,7 @@
 @using Microsoft.AspNetCore.Components.Authorization
 @using System.Security.Claims
 @attribute [Authorize]
-@inject ISessionStore SessionStore
+@inject AuthorizedSessionService SessionService
 @inject AuthenticationStateProvider AuthStateProvider
 @inject NavigationManager Navigation
 
@@ -85,9 +85,9 @@
                                 <td>
                                     <div class="player-info">
                                         <span class="player-name">@s.DisplayName</span>
-                                        @if (!string.IsNullOrEmpty(s.TelegramUsername))
+                                        @if (!string.IsNullOrEmpty(s.ExternalUsername))
                                         {
-                                            <span class="player-username">@@@s.TelegramUsername</span>
+                                            <span class="player-username">@@@s.ExternalUsername</span>
                                         }
                                     </div>
                                 </td>
@@ -171,21 +171,20 @@
             Navigation.NavigateTo("/login");
             return;
         }
-        var telegramIdClaim = user.FindFirst("telegram_id")?.Value
-            ?? user.FindFirst(ClaimTypes.NameIdentifier)?.Value;
-        if (!long.TryParse(telegramIdClaim, out var telegramId))
+        if (!user.TryGetPlatformIdentity(out var platform, out var externalUserId))
         {
             Navigation.NavigateTo("/login");
             return;
         }
         try
         {
-            if (!await SessionStore.IsGroupManagerAsync(GroupId, telegramId))
+            var groupManagement = await SessionService.GetGroupManagementForCurrentUserAsync(GroupId);
+            if (groupManagement is null)
             {
                 Navigation.NavigateTo("/access-denied");
                 return;
             }
-            stats = await SessionStore.GetGroupAttendanceStatsAsync(GroupId) ?? new();
+            stats = await SessionService.GetGroupAttendanceStatsForCurrentUserAsync(GroupId) ?? new();
             UpdateSortedStats();
         }
         catch (Exception ex)

src/GmRelay.Web/Components/Pages/Home.razor

@@ -43,7 +43,7 @@
                 <div class="glass-card group-card">
                     <div class="group-card-icon">🎮</div>
                     <h3 class="group-card-title">@group.Name</h3>
-                    <p class="group-card-id">ID: @group.TelegramChatId</p>
+                    <p class="group-card-id">ID: @(group.Platform == "Discord" ? group.ExternalGroupId : group.TelegramChatId.ToString())</p>
                     <span class="status-badge @(group.ManagerRole == GroupManagerRoleExtensions.OwnerValue ? "status-success" : "status-info")" style="align-self: flex-start; margin-bottom: 1rem;">
                         @FormatRole(group.ManagerRole)
                     </span>
@@ -93,13 +93,13 @@
         var user = authState.User;
         userName = user.Identity?.Name ?? "Мастер Игры";
 
-        if (!user.TryGetTelegramId(out var telegramId))
+        if (!user.TryGetPlatformIdentity(out _, out _))
         {
             Navigation.NavigateTo("/access-denied");
             return;
         }
 
-        groups = await SessionService.GetGroupsForGmAsync(telegramId);
+        groups = await SessionService.GetGroupsForCurrentUserAsync();
     }
 
     private static string FormatRole(string role) =>

src/GmRelay.Web/Components/Pages/SessionHistory.razor

@@ -56,7 +56,7 @@
                         {
                             <tr>
                                 <td>@entry.ChangedAt.ToString("dd.MM.yyyy HH:mm") UTC</td>
-                                <td>@entry.ActorName (@entry.ActorTelegramId)</td>
+                                <td>@entry.ActorName (@entry.ActorExternalUserId)</td>
                                 <td>
                                     <span class="status-badge @(GetBadgeClass(entry.ChangeType))">
                                         @GetChangeTypeLabel(entry.ChangeType)
@@ -82,13 +82,13 @@
     protected override async Task OnInitializedAsync()
     {
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
-        if (!authState.User.TryGetTelegramId(out var telegramId))
+        if (!authState.User.TryGetPlatformIdentity(out var platform, out var externalUserId))
         {
             Navigation.NavigateTo("/access-denied");
             return;
         }
 
-        var session = await SessionService.GetSessionForGmAsync(SessionId, telegramId);
+        var session = await SessionService.GetSessionForCurrentUserAsync(SessionId);
         if (session is null)
         {
             Navigation.NavigateTo("/access-denied");
@@ -97,7 +97,7 @@
 
         sessionTitle = session.Title;
         groupId = session.GroupId;
-        entries = await SessionService.GetSessionHistoryForGmAsync(SessionId, telegramId);
+        entries = await SessionService.GetSessionHistoryForCurrentUserAsync(SessionId);
     }
 
     private string GetChangeTypeLabel(string changeType) => changeType switch

src/GmRelay.Web/DiscordOAuthOptions.cs

@@ -2,9 +2,9 @@ namespace GmRelay.Web;
 
 public sealed class DiscordOAuthOptions
 {
-    public required string ClientId { get; set; }
-    public required string ClientSecret { get; set; }
-    public required string RedirectUri { get; set; }
+    public string ClientId { get; set; } = string.Empty;
+    public string ClientSecret { get; set; } = string.Empty;
+    public string RedirectUri { get; set; } = string.Empty;
     public string[] Scopes { get; set; } = ["identify", "guilds"];
 
     public void Validate()

src/GmRelay.Web/Program.cs

@@ -1,3 +1,4 @@
+using GmRelay.Web;
 using GmRelay.Web.Components;
 using GmRelay.Web.Health;
 using GmRelay.Web.Services;

src/GmRelay.Web/Services/SessionService.cs

@@ -13,7 +13,16 @@ public sealed record WebGameGroup(
     string? ExternalGroupId,
     string Name,
     string? Platform,
-    string ManagerRole = GroupManagerRoleExtensions.OwnerValue);
+    string ManagerRole = GroupManagerRoleExtensions.OwnerValue)
+{
+    public long GmTelegramId { get; init; }
+
+    public WebGameGroup(Guid id, long telegramChatId, string name, long gmTelegramId)
+        : this(id, telegramChatId, null, name, null)
+    {
+        GmTelegramId = gmTelegramId;
+    }
+}
 
 public sealed record WebGroupManager(
     long TelegramId,
@@ -22,7 +31,11 @@ public sealed record WebGroupManager(
     string? TelegramUsername,
     string? ExternalUsername,
     string Role,
-    DateTime AddedAt);
+    DateTime AddedAt)
+{
+    public WebGroupManager(long telegramId, string displayName, string? telegramUsername, string role, DateTime addedAt)
+        : this(telegramId, null, displayName, telegramUsername, null, role, addedAt) { }
+}
 
 public sealed record WebGroupManagement(
     WebGameGroup Group,

tests/GmRelay.Bot.Tests/Discord/DiscordProjectStructureTests.cs

@@ -61,7 +61,7 @@ public sealed class DiscordProjectStructureTests
         var prChecks = File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "pr-checks.yml"));
         var deploy = File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml"));
 
-        Assert.Contains("gmrelay-discord-bot:2.7.2", compose);
+        Assert.Contains("gmrelay-discord-bot:2.8.0", compose);
         Assert.Contains("Discord__Token=${DISCORD_BOT_TOKEN:?Set DISCORD_BOT_TOKEN in .env}", compose);
         Assert.Contains("src/GmRelay.DiscordBot/Dockerfile", deploy);
         Assert.Contains("DISCORD_BOT_TOKEN", deploy);
@@ -75,13 +75,13 @@ public sealed class DiscordProjectStructureTests
     {
         var repoRoot = GetRepoRoot();
 
-        Assert.Contains("<Version>2.7.2</Version>", File.ReadAllText(Path.Combine(repoRoot, "Directory.Build.props")));
-        Assert.Contains("VERSION: 2.7.2", File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml")));
-        Assert.Contains("gmrelay-bot:2.7.2", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
-        Assert.Contains("gmrelay-web:2.7.2", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
-        Assert.Contains("gmrelay-discord-bot:2.7.2", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains("<Version>2.8.0</Version>", File.ReadAllText(Path.Combine(repoRoot, "Directory.Build.props")));
+        Assert.Contains("VERSION: 2.8.0", File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml")));
+        Assert.Contains("gmrelay-bot:2.8.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains("gmrelay-web:2.8.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains("gmrelay-discord-bot:2.8.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
         Assert.Contains(
-            "v2.7.2",
+            "v2.8.0",
             File.ReadAllText(Path.Combine(repoRoot, "src", "GmRelay.Web", "Components", "Layout", "NavMenu.razor")));
     }
 

tests/GmRelay.Bot.Tests/Web/AuthorizedSessionServiceTests.cs

@@ -1,10 +1,29 @@
 using GmRelay.Web.Services;
+using System.Security.Claims;
+using Microsoft.AspNetCore.Http;
 using GmRelay.Shared.Domain;
 
 namespace GmRelay.Bot.Tests.Web;
 
 public sealed class AuthorizedSessionServiceTests
 {
+    private static IHttpContextAccessor CreateAccessor(string externalUserId, string? name = null)
+    {
+        var claims = new List<Claim>
+        {
+            new Claim(ClaimTypes.NameIdentifier, externalUserId),
+            new Claim("TelegramId", externalUserId),
+            new Claim("Platform", "Telegram")
+        };
+        if (name is not null)
+            claims.Add(new Claim(ClaimTypes.Name, name));
+
+        var identity = new ClaimsIdentity(claims, "Test");
+        var principal = new ClaimsPrincipal(identity);
+        var httpContext = new DefaultHttpContext { User = principal };
+        return new HttpContextAccessor { HttpContext = httpContext };
+    }
+
     [Fact]
     public async Task GetUpcomingSessionsForGmAsync_ReturnsSessions_WhenGroupBelongsToGm()
     {
@@ -19,9 +38,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var sessions = await service.GetUpcomingSessionsForGmAsync(groupId, gmId);
+        var sessions = await service.GetUpcomingSessionsForCurrentUserAsync(groupId);
 
         Assert.NotNull(sessions);
         Assert.Single(sessions);
@@ -47,9 +67,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, coGmId, GroupManagerRole.CoGm)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(coGmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var sessions = await service.GetUpcomingSessionsForGmAsync(groupId, coGmId);
+        var sessions = await service.GetUpcomingSessionsForCurrentUserAsync(groupId);
 
         Assert.NotNull(sessions);
         Assert.Single(sessions);
@@ -65,9 +86,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, 42, "Alpha", 2002L)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor("1001");
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var sessions = await service.GetUpcomingSessionsForGmAsync(groupId, 1001L);
+        var sessions = await service.GetUpcomingSessionsForCurrentUserAsync(groupId);
 
         Assert.Null(sessions);
     }
@@ -87,9 +109,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var session = await service.GetSessionForGmAsync(sessionId, gmId);
+        var session = await service.GetSessionForCurrentUserAsync(sessionId);
 
         Assert.NotNull(session);
         Assert.Equal(sessionId, session.Id);
@@ -109,9 +132,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor("1001");
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var session = await service.GetSessionForGmAsync(sessionId, 1001L);
+        var session = await service.GetSessionForCurrentUserAsync(sessionId);
 
         Assert.Null(session);
     }
@@ -130,9 +154,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor("1001");
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var action = () => service.UpdateSessionForGmAsync(sessionId, 1001L, "Updated", DateTime.UtcNow.AddDays(1), "https://example.test/b", 5);
+        var action = () => service.UpdateSessionForCurrentUserAsync(sessionId, "Updated", DateTime.UtcNow.AddDays(1), "https://example.test/b", 5);
 
         await Assert.ThrowsAsync<SessionAccessDeniedException>(action);
         Assert.False(store.UpdateCalled);
@@ -154,9 +179,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.UpdateSessionForGmAsync(sessionId, gmId, "Updated", scheduledAt, "https://example.test/b", 5);
+        await service.UpdateSessionForCurrentUserAsync(sessionId, "Updated", scheduledAt, "https://example.test/b", 5);
 
         Assert.True(store.UpdateCalled);
         Assert.Equal(groupId, store.LastUpdatedGroupId);
@@ -183,9 +209,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", originalTime, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.UpdateSessionForGmAsync(sessionId, gmId, "Updated Title", originalTime, "https://example.test/a", 4);
+        await service.UpdateSessionForCurrentUserAsync(sessionId, "Updated Title", originalTime, "https://example.test/a", 4);
 
         Assert.Single(store.LogEntries);
         Assert.Equal("Title", store.LogEntries[0].ChangeType);
@@ -209,10 +236,11 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", originalTime, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
         var newTime = originalTime.AddDays(1);
-        await service.UpdateSessionForGmAsync(sessionId, gmId, "Updated Title", newTime, "https://example.test/b", 5);
+        await service.UpdateSessionForCurrentUserAsync(sessionId, "Updated Title", newTime, "https://example.test/b", 5);
 
         Assert.Equal(4, store.LogEntries.Count);
         Assert.Contains(store.LogEntries, e => e.ChangeType == "Title");
@@ -237,9 +265,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", originalTime, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.UpdateSessionForGmAsync(sessionId, gmId, "Session A", originalTime, "https://example.test/a", 4);
+        await service.UpdateSessionForCurrentUserAsync(sessionId, "Session A", originalTime, "https://example.test/a", 4);
 
         Assert.Empty(store.LogEntries);
     }
@@ -259,9 +288,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var history = await service.GetSessionHistoryForGmAsync(sessionId, gmId);
+        var history = await service.GetSessionHistoryForCurrentUserAsync(sessionId);
 
         Assert.NotNull(history);
         Assert.Empty(history);
@@ -281,9 +311,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor("1001");
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var history = await service.GetSessionHistoryForGmAsync(sessionId, 1001L);
+        var history = await service.GetSessionHistoryForCurrentUserAsync(sessionId);
 
         Assert.Null(history);
     }
@@ -303,9 +334,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(sessionId, groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", Guid.NewGuid(), 10, 42, 4, 3, 1)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.PromoteWaitlistedPlayerForGmAsync(sessionId, gmId);
+        await service.PromoteWaitlistedPlayerForCurrentUserAsync(sessionId);
 
         Assert.True(store.PromoteCalled);
         Assert.Equal(groupId, store.LastPromotedGroupId);
@@ -326,9 +358,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor("1001");
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var action = () => service.UpdateBatchDetailsForGmAsync(batchId, 1001L, "Updated", "https://example.test/b");
+        var action = () => service.UpdateBatchDetailsForCurrentUserAsync(batchId, "Updated", "https://example.test/b");
 
         await Assert.ThrowsAsync<SessionAccessDeniedException>(action);
         Assert.False(store.UpdateBatchDetailsCalled);
@@ -349,9 +382,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.UpdateBatchDetailsForGmAsync(batchId, gmId, "Updated", "https://example.test/b");
+        await service.UpdateBatchDetailsForCurrentUserAsync(batchId, "Updated", "https://example.test/b");
 
         Assert.True(store.UpdateBatchDetailsCalled);
         Assert.Equal(batchId, store.LastUpdatedBatchId);
@@ -380,9 +414,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, coGmId, GroupManagerRole.CoGm)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(coGmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.UpdateBatchDetailsForGmAsync(batchId, coGmId, "Updated", "https://example.test/b");
+        await service.UpdateBatchDetailsForCurrentUserAsync(batchId, "Updated", "https://example.test/b");
 
         Assert.True(store.UpdateBatchDetailsCalled);
         Assert.Equal(batchId, store.LastUpdatedBatchId);
@@ -400,9 +435,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, 42, "Alpha", ownerId)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(ownerId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.AddCoGmForOwnerAsync(groupId, ownerId, coGmId, "Assistant GM", "assistant");
+        await service.AddCoGmForOwnerAsync(groupId, "Telegram", coGmId.ToString(), "Assistant GM", "assistant");
 
         Assert.True(store.AddCoGmCalled);
         Assert.Equal(groupId, store.LastAddedCoGmGroupId);
@@ -427,9 +463,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, coGmId, GroupManagerRole.CoGm)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(coGmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var action = () => service.AddCoGmForOwnerAsync(groupId, coGmId, newCoGmId, "Second Assistant", null);
+        var action = () => service.AddCoGmForOwnerAsync(groupId, "Telegram", newCoGmId.ToString(), "Second Assistant", null);
 
         await Assert.ThrowsAsync<SessionAccessDeniedException>(action);
         Assert.False(store.AddCoGmCalled);
@@ -450,9 +487,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, coGmId, GroupManagerRole.CoGm)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(ownerId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.RemoveCoGmForOwnerAsync(groupId, ownerId, coGmId);
+        await service.RemoveCoGmForOwnerAsync(groupId, "Telegram", coGmId.ToString());
 
         Assert.True(store.RemoveCoGmCalled);
         Assert.Equal(groupId, store.LastRemovedCoGmGroupId);
@@ -473,9 +511,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor("1001");
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var action = () => service.UpdateBatchNotificationModeForGmAsync(batchId, 1001L, SessionNotificationMode.GroupOnly);
+        var action = () => service.UpdateBatchNotificationModeForCurrentUserAsync(batchId, SessionNotificationMode.GroupOnly);
 
         await Assert.ThrowsAsync<SessionAccessDeniedException>(action);
         Assert.False(store.UpdateBatchNotificationModeCalled);
@@ -496,9 +535,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.UpdateBatchNotificationModeForGmAsync(batchId, gmId, SessionNotificationMode.GroupOnly);
+        await service.UpdateBatchNotificationModeForCurrentUserAsync(batchId, SessionNotificationMode.GroupOnly);
 
         Assert.True(store.UpdateBatchNotificationModeCalled);
         Assert.Equal(batchId, store.LastUpdatedNotificationBatchId);
@@ -521,9 +561,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var action = () => service.RescheduleBatchForGmAsync(batchId, gmId, DateTime.UtcNow.AddDays(7), intervalDays: 0);
+        var action = () => service.RescheduleBatchForCurrentUserAsync(batchId, DateTime.UtcNow.AddDays(7), intervalDays: 0);
 
         await Assert.ThrowsAsync<ArgumentOutOfRangeException>(action);
         Assert.False(store.RescheduleBatchCalled);
@@ -545,9 +586,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.RescheduleBatchForGmAsync(batchId, gmId, firstScheduledAt, intervalDays: 14);
+        await service.RescheduleBatchForCurrentUserAsync(batchId, firstScheduledAt, intervalDays: 14);
 
         Assert.True(store.RescheduleBatchCalled);
         Assert.Equal(batchId, store.LastRescheduledBatchId);
@@ -571,9 +613,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.CloneBatchForGmAsync(batchId, gmId, BatchCloneInterval.NextWeek);
+        await service.CloneBatchForCurrentUserAsync(batchId, BatchCloneInterval.NextWeek);
 
         Assert.True(store.CloneBatchCalled);
         Assert.Equal(batchId, store.LastClonedBatchId);
@@ -591,11 +634,11 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, 42, "Alpha", gmId)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.CreateCampaignTemplateForGmAsync(
+        await service.CreateCampaignTemplateForCurrentUserAsync(
             groupId,
-            gmId,
             new CreateCampaignTemplateRequest(
                 "  Weekly arc  ",
                 "  Kingmaker  ",
@@ -626,11 +669,11 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, 42, "Alpha", gmId)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.CreateCampaignTemplateForGmAsync(
+        await service.CreateCampaignTemplateForCurrentUserAsync(
             groupId,
-            gmId,
             new CreateCampaignTemplateRequest(
                 "Open table",
                 "West Marches",
@@ -653,11 +696,11 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(groupId, 42, "Alpha", 2002L)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor("1001");
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var action = () => service.CreateCampaignTemplateForGmAsync(
+        var action = () => service.CreateCampaignTemplateForCurrentUserAsync(
             groupId,
-            1001L,
             new CreateCampaignTemplateRequest(
                 "Weekly arc",
                 "Kingmaker",
@@ -687,9 +730,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(templateId, groupId, "Weekly arc", "Kingmaker", "https://example.test/kingmaker", 6, 7, 5, SessionNotificationModeExtensions.GroupOnlyValue, DateTime.UtcNow, DateTime.UtcNow)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor(gmId.ToString());
+        var service = new AuthorizedSessionService(store, accessor);
 
-        await service.CreateBatchFromCampaignTemplateForGmAsync(templateId, gmId, firstScheduledAt);
+        await service.CreateBatchFromCampaignTemplateForCurrentUserAsync(templateId, firstScheduledAt);
 
         Assert.True(store.CreateBatchFromTemplateCalled);
         Assert.Equal(templateId, store.LastCreatedBatchTemplateId);
@@ -711,9 +755,10 @@ public sealed class AuthorizedSessionServiceTests
             [
                 new(templateId, groupId, "Weekly arc", "Kingmaker", "https://example.test/kingmaker", 6, 7, 5, SessionNotificationModeExtensions.GroupOnlyValue, DateTime.UtcNow, DateTime.UtcNow)
             ]);
-        var service = new AuthorizedSessionService(store);
+        var accessor = CreateAccessor("1001");
+        var service = new AuthorizedSessionService(store, accessor);
 
-        var action = () => service.CreateBatchFromCampaignTemplateForGmAsync(templateId, 1001L, DateTime.UtcNow.AddDays(3));
+        var action = () => service.CreateBatchFromCampaignTemplateForCurrentUserAsync(templateId, DateTime.UtcNow.AddDays(3));
 
         await Assert.ThrowsAsync<SessionAccessDeniedException>(action);
         Assert.False(store.CreateBatchFromTemplateCalled);
@@ -1019,7 +1064,7 @@ public sealed class AuthorizedSessionServiceTests
 
         public Task LogSessionChangeAsync(Guid sessionId, long actorTelegramId, string actorName, string changeType, string? oldValue, string? newValue)
         {
-            var entry = new SessionAuditLogEntry(Guid.NewGuid(), sessionId, actorTelegramId, actorName, changeType, oldValue, newValue, DateTime.UtcNow);
+            var entry = new SessionAuditLogEntry(Guid.NewGuid(), sessionId, actorTelegramId.ToString(), actorName, changeType, oldValue, newValue, DateTime.UtcNow);
             LogEntries.Add(entry);
             LastLogSessionId = sessionId;
             LastLogActorTelegramId = actorTelegramId;
@@ -1033,12 +1078,62 @@ public sealed class AuthorizedSessionServiceTests
         public Task<List<SessionAuditLogEntry>> GetSessionHistoryAsync(Guid sessionId) =>
             Task.FromResult(LogEntries.Where(e => e.SessionId == sessionId).OrderByDescending(e => e.ChangedAt).ToList());
 
+        public Task<List<WebGameGroup>> GetGroupsForUserAsync(string platform, string externalUserId) =>
+            Task.FromResult(groupsById.Values.Where(group => IsManager(group.Id, externalUserId)).ToList());
+
+        public Task<bool> IsGroupManagerAsync(Guid groupId, string platform, string externalUserId) =>
+            Task.FromResult(IsManager(groupId, externalUserId));
+
+        public Task<bool> IsGroupOwnerAsync(Guid groupId, string platform, string externalUserId) =>
+            Task.FromResult(IsOwner(groupId, externalUserId));
+
+        public Task AddGroupCoGmAsync(Guid groupId, string ownerPlatform, string ownerExternalUserId, string coGmPlatform, string coGmExternalUserId, string displayName, string? externalUsername)
+        {
+            AddCoGmCalled = true;
+            LastAddedCoGmGroupId = groupId;
+            LastAddedCoGmTelegramId = long.TryParse(coGmExternalUserId, out var id) ? id : null;
+            LastAddedCoGmDisplayName = displayName;
+            LastAddedCoGmUsername = externalUsername;
+            return Task.CompletedTask;
+        }
+
+        public Task RemoveGroupCoGmAsync(Guid groupId, string coGmPlatform, string coGmExternalUserId)
+        {
+            RemoveCoGmCalled = true;
+            LastRemovedCoGmGroupId = groupId;
+            LastRemovedCoGmTelegramId = long.TryParse(coGmExternalUserId, out var id) ? id : null;
+            return Task.CompletedTask;
+        }
+
+        public Task LogSessionChangeAsync(Guid sessionId, string actorExternalUserId, string actorName, string changeType, string? oldValue, string? newValue)
+        {
+            var entry = new SessionAuditLogEntry(Guid.NewGuid(), sessionId, actorExternalUserId, actorName, changeType, oldValue, newValue, DateTime.UtcNow);
+            LogEntries.Add(entry);
+            LastLogSessionId = sessionId;
+            LastLogActorTelegramId = long.TryParse(actorExternalUserId, out var id) ? (long?)id : null;
+            LastLogActorName = actorName;
+            LastLogChangeType = changeType;
+            LastLogOldValue = oldValue;
+            LastLogNewValue = newValue;
+            return Task.CompletedTask;
+        }
+
+        public Task UpsertDiscordUserAsync(string discordId, string displayName, string? avatarUrl) =>
+            Task.CompletedTask;
+
         private bool IsManager(Guid groupId, long telegramId) =>
             IsOwner(groupId, telegramId) ||
             managers.Any(manager => manager.GroupId == groupId && manager.TelegramId == telegramId);
 
         private bool IsOwner(Guid groupId, long telegramId) =>
             groupsById.TryGetValue(groupId, out var group) && group.GmTelegramId == telegramId;
+
+        private bool IsManager(Guid groupId, string externalUserId) =>
+            IsOwner(groupId, externalUserId) ||
+            managers.Any(manager => manager.GroupId == groupId && manager.TelegramId.ToString() == externalUserId);
+
+        private bool IsOwner(Guid groupId, string externalUserId) =>
+            groupsById.TryGetValue(groupId, out var group) && group.GmTelegramId.ToString() == externalUserId;
     }
 
     private sealed record FakeGroupManager(Guid GroupId, long TelegramId, GroupManagerRole Role);