feat: added auth for telegram stage

JOBot.Backend/Services/gRPC/UserService.cs

@@ -1,3 +1,4 @@
+using Google.Protobuf.WellKnownTypes;
 using Grpc.Core;
 using JOBot.Backend.DAL.Context;
 using JOBot.Backend.DAL.Models;
@@ -7,7 +8,7 @@ using User = JOBot.Backend.DAL.Models.User;
 
 namespace JOBot.Backend.Services.gRPC;
 
-public class UserService(AppDbContext dbContext) : Proto.User.UserBase
+public class UserService(AppDbContext dbContext, HeadHunterService hhService) : Proto.User.UserBase
 {
     /// <summary>
     /// Create user
@@ -62,6 +63,16 @@ public class UserService(AppDbContext dbContext) : Proto.User.UserBase
         return new AcceptEulaResponse { Success = true };
     }
 
+    public override Task<GetHeadHunterAuthHookResponse> GetHeadHunterAuthHook(
+        GetHeadHunterAuthHookRequest request, 
+        ServerCallContext context)
+    {
+        return Task.Run(() => new GetHeadHunterAuthHookResponse
+        {
+            RegistrationUrl = hhService.GenerateAuthLink(request.UserId)
+        });
+    }
+
     /// <summary>
     /// Throw RPCException if user not found
     /// </summary>