telegram-client/src/Nocr.TelegramClient.AppServices/Users/UsersService.cs

using Nocr.Users.Api.Contracts.Users;
using Nocr.Users.Api.Contracts.Users.Dto;
using Nocr.Users.Api.Contracts.Users.Dto.Requests;

namespace Nocr.TelegramClient.AppServices.Users;

public sealed class UsersService : IUsersService
{
    private readonly IUsersController _usersController;

    public UsersService(IUsersController usersController)
    {
        _usersController = usersController ?? throw new ArgumentNullException(nameof(usersController));
    }

    public async Task<UserData> GetOrCreate(long telegramId, string? username, CancellationToken cancellationToken = default)
    {
        var user = await _usersController.GetByIdentity(UserIdentityType.TelegramId, telegramId.ToString(), cancellationToken);
        if (user == null)
        {
            await _usersController.Create(new CreateUserRequest
            {
                Username = username ?? $"User: {telegramId.ToString()}",
                TelegramId = telegramId,
                TelegramUsername = username
            }, cancellationToken);

            user = await _usersController.GetByIdentity(UserIdentityType.TelegramId, telegramId.ToString(),
                cancellationToken);
        }

        return user;
    }

    public Task<UserData?> GetById(long id, CancellationToken cancellationToken = default)
    {
        return _usersController.GetById(id, cancellationToken);
    }
}