public User(string email, string name, string password, IHashProvider hashProvider)
{
if (hashProvider == null)
{
throw new ArgumentException(nameof(hashProvider));
}
var(hash, salt) = hashProvider.HashPassword(password);
Email = email ?? throw new ArgumentException(nameof(email));
NormalizedEmail = email.ToLower();
Name = name ?? throw new ArgumentException(nameof(name));
PasswordHash = hash;
Salt = salt;
}