Move the user contacts domain to Immediate.Handlers

Crypter.API/AssemblyInfo.cs

@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2026 Crypter File Transfer
+ *
+ * This file is part of the Crypter file transfer project.
+ *
+ * Crypter is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Crypter source code is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * You can be released from the requirements of the aforementioned license
+ * by purchasing a commercial license. Buying such a license is mandatory
+ * as soon as you develop commercial activities involving the Crypter source
+ * code without disclosing the source code of your own applications.
+ *
+ * Contact the current copyright holder to discuss commercial license options.
+ */
+
+using Immediate.Handlers.Shared;
+
+[assembly: ImmediateAssemblyIdentifier("CrypterApi")]

Crypter.API/Crypter.API.csproj

@@ -25,6 +25,8 @@
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
+      <PackageReference Include="Immediate.Apis" Version="6.2.0" />
+      <PackageReference Include="Immediate.Handlers" Version="3.11.1" />
       <PackageReference Include="Swashbuckle.AspNetCore" Version="10.2.3" />
       <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.10" />
    </ItemGroup>

Crypter.API/Endpoints/UserContacts/AddUserContactEndpoint.cs

@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2026 Crypter File Transfer
+ *
+ * This file is part of the Crypter file transfer project.
+ *
+ * Crypter is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Crypter source code is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * You can be released from the requirements of the aforementioned license
+ * by purchasing a commercial license. Buying such a license is mandatory
+ * as soon as you develop commercial activities involving the Crypter source
+ * code without disclosing the source code of your own applications.
+ *
+ * Contact the current copyright holder to discuss commercial license options.
+ */
+
+using System;
+using System.Net;
+using System.Threading;
+using System.Threading.Tasks;
+using Crypter.API.Methods;
+using Crypter.Common.Contracts;
+using Crypter.Common.Contracts.Features.Contacts;
+using Crypter.Core.Features.UserContacts.Commands;
+using EasyMonads;
+using Immediate.Apis.Shared;
+using Immediate.Handlers.Shared;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Crypter.API.Endpoints.UserContacts;
+
+[Handler]
+[MapPost("api/user/contact")]
+[Authorize]
+public static partial class AddUserContactEndpoint
+{
+    public sealed record Request
+    {
+        [FromQuery]
+        public string? Username { get; init; }
+    }
+
+    internal static void CustomizeEndpoint(RouteHandlerBuilder endpoint) =>
+        endpoint
+            .WithSummary("Add a user as a contact.")
+            .Produces<UserContact>(StatusCodes.Status200OK)
+            .Produces(StatusCodes.Status401Unauthorized)
+            .Produces<ErrorResponse>(StatusCodes.Status400BadRequest)
+            .Produces<ErrorResponse>(StatusCodes.Status404NotFound)
+            .Produces<ErrorResponse>(StatusCodes.Status500InternalServerError);
+
+    private static async ValueTask<IResult> HandleAsync(
+        [AsParameters] Request request,
+        IHttpContextAccessor httpContextAccessor,
+        AddUserContactCommand.Handler handler,
+        CancellationToken cancellationToken)
+    {
+        Guid userId = EndpointUser.ParseUserId(httpContextAccessor);
+        AddUserContactCommand.Command command = new AddUserContactCommand.Command(userId, request.Username);
+
+        Either<AddUserContactError, UserContact> result = await handler.HandleAsync(command, cancellationToken);
+        return result.Match(
+            MakeErrorResponse,
+            x => Results.Ok(x),
+            MakeErrorResponse(AddUserContactError.UnknownError));
+    }
+
+    private static IResult MakeErrorResponse(AddUserContactError error)
+    {
+#pragma warning disable CS8524
+        return error switch
+        {
+            AddUserContactError.UnknownError => EndpointResults.MakeErrorResponse(HttpStatusCode.InternalServerError, error),
+            AddUserContactError.NotFound => EndpointResults.MakeErrorResponse(HttpStatusCode.NotFound, error),
+            AddUserContactError.InvalidUser => EndpointResults.MakeErrorResponse(HttpStatusCode.BadRequest, error)
+        };
+#pragma warning restore CS8524
+    }
+}

Crypter.API/Endpoints/UserContacts/GetUserContactsEndpoint.cs

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2026 Crypter File Transfer
+ *
+ * This file is part of the Crypter file transfer project.
+ *
+ * Crypter is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Crypter source code is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * You can be released from the requirements of the aforementioned license
+ * by purchasing a commercial license. Buying such a license is mandatory
+ * as soon as you develop commercial activities involving the Crypter source
+ * code without disclosing the source code of your own applications.
+ *
+ * Contact the current copyright holder to discuss commercial license options.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Crypter.API.Methods;
+using Crypter.Common.Contracts.Features.Contacts;
+using Crypter.Core.Features.UserContacts.Queries;
+using Immediate.Apis.Shared;
+using Immediate.Handlers.Shared;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+
+namespace Crypter.API.Endpoints.UserContacts;
+
+[Handler]
+[MapGet("api/user/contact")]
+[Authorize]
+public static partial class GetUserContactsEndpoint
+{
+    public sealed record Request;
+
+    internal static void CustomizeEndpoint(RouteHandlerBuilder endpoint) =>
+        endpoint
+            .WithSummary("Get a list of user contacts.")
+            .Produces<List<UserContact>>(StatusCodes.Status200OK)
+            .Produces(StatusCodes.Status401Unauthorized);
+
+    private static async ValueTask<IResult> HandleAsync(
+        Request request,
+        IHttpContextAccessor httpContextAccessor,
+        GetUserContactsQuery.Handler handler,
+        CancellationToken cancellationToken)
+    {
+        Guid userId = EndpointUser.ParseUserId(httpContextAccessor);
+        List<UserContact> result = await handler.HandleAsync(new GetUserContactsQuery.Query(userId), cancellationToken);
+        return Results.Ok(result);
+    }
+}