public async Task <Employee> AuthenticateAsync(Credential credential)
{
var employee = await _storage.GetByEmailAsync(credential.Email);
if (employee == null)
{
throw new Exception("Invalid email.");
}
// check if password matches
if (credential.Password.Equals(employee.Password))
{
return(employee);
}
else
{
throw new Exception("Invalid password.");
}
}
