add architecture skeleton

GymLogAI.Persistence/Repositories/UserRepository.cs

@@ -0,0 +1,32 @@
+using GymLogAI.Application.Interfaces;
+using GymLogAI.Core.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace GymLogAI.Persistence.Repositories;
+
+public sealed class UserRepository(AppDbContext dbContext) : IUserRepository
+{
+    public async Task<User?> GetByIdAsync(Guid id, CancellationToken cancellationToken)
+    {
+        return await dbContext.Users.SingleOrDefaultAsync(x => x.Id == id, cancellationToken);
+    }
+
+    public async Task<User?> GetByTelegramUserIdAsync(long telegramUserId, CancellationToken cancellationToken)
+    {
+        return await dbContext.Users.SingleOrDefaultAsync(x => x.TelegramUserId == telegramUserId, cancellationToken);
+    }
+
+    public async Task<User> AddAsync(User user, CancellationToken cancellationToken)
+    {
+        dbContext.Users.Add(user);
+        await dbContext.SaveChangesAsync(cancellationToken);
+        return user;
+    }
+
+    public async Task<User> UpdateAsync(User user, CancellationToken cancellationToken)
+    {
+        dbContext.Users.Update(user);
+        await dbContext.SaveChangesAsync(cancellationToken);
+        return user;
+    }
+}