SomniaGuestLog/src/Somnia.GuestLog/Services/AddressQuery/ConfigFileAddressQueryFactory.cs

using Microsoft.Extensions.Options;
using Somnia.GuestLog.Models.Configuration;
using Somnia.GuestLog.Utils.DI;

namespace Somnia.GuestLog.Services.AddressQuery;

public class ConfigFileAddressQueryFactory(
    IServiceProvider serviceProvider,
    IOptions<AddressQueryConfig> config
) : IAddressQueryFactory, IFactoryDI
{
    public static void RegisterFactoryItems(IServiceCollection services)
    {
        services.AddKeyedTransient<IAddressQueryService, NominatimAddressQueryService>(AddressQueryConfig.AddressQueryProviderEnum.Nominatim);
    }

    public IAddressQueryService GetService()
    {
        if (config.Value.EnableAddressQuery == false)
        {
            throw new InvalidOperationException("AddressQuery is disabled. Enable and configure it first!");
        }

        return serviceProvider.GetKeyedService<IAddressQueryService>(config.Value.Provider)
            ?? throw new InvalidOperationException($"AddressQueryService not found for provider: '{config.Value.Provider}'");
    }
}