namespace RhSolutions.Services;

public class FittingsCalculatorFactory
{
    private readonly IServiceProvider _serviceProvider;

    public FittingsCalculatorFactory(IServiceProvider serviceProvider)
    {
        _serviceProvider = serviceProvider;
    }

    public IFittingsCalculator GetFittingsCalculator(string calculatorName)
    {
        return calculatorName switch
        {
            "Sleeves" => (IFittingsCalculator)_serviceProvider.GetService(typeof(SleevesCalculator)),
            "Couplings" => (IFittingsCalculator)_serviceProvider.GetService(typeof(CouplingsCalculator)),
            _ => throw new ArgumentException($"Незвестный интерфейс {nameof(IFittingsCalculator)}: {calculatorName}")
        };
    }
}