using ErsatzTV.Core.Domain;
using ErsatzTV.Core.Interfaces.Repositories;

namespace ErsatzTV.Application.Configuration;

public class GetXmltvSettingsHandler(IConfigElementRepository configElementRepository)
    : IRequestHandler<GetXmltvSettings, XmltvSettingsViewModel>
{
    public async Task<XmltvSettingsViewModel> Handle(GetXmltvSettings request, CancellationToken cancellationToken)
    {
        Option<int> daysToBuild = await configElementRepository.GetValue<int>(
            ConfigElementKey.XmltvDaysToBuild,
            cancellationToken);

        Option<XmltvTimeZone> maybeTimeZone =
            await configElementRepository.GetValue<XmltvTimeZone>(ConfigElementKey.XmltvTimeZone, cancellationToken);

        Option<XmltvBlockBehavior> maybeBlockBehavior =
            await configElementRepository.GetValue<XmltvBlockBehavior>(
                ConfigElementKey.XmltvBlockBehavior,
                cancellationToken);

        return new XmltvSettingsViewModel
        {
            DaysToBuild = await daysToBuild.IfNoneAsync(2),
            TimeZone = await maybeTimeZone.IfNoneAsync(XmltvTimeZone.Local),
            BlockBehavior = await maybeBlockBehavior.IfNoneAsync(XmltvBlockBehavior.SplitTimeEvenly)
        };
    }
}