RackPeek/RackPeek.Domain/Resources/Hardware/Desktops/Gpus/UpdateDesktopGpuUseCase.cs

using RackPeek.Domain.Helpers;
using RackPeek.Domain.Resources.Hardware.Models;

namespace RackPeek.Domain.Resources.Hardware.Desktops.Gpus;

public class UpdateDesktopGpuUseCase(IHardwareRepository repository) : IUseCase
{
    public async Task ExecuteAsync(string name, int index, Gpu updated)
    {
        // ToDo pass in properties as inputs, construct the entity in the usecase, ensure optional inputs are nullable
        // ToDo validate / normalize all inputs
        
        name = Normalize.HardwareName(name);
        ThrowIfInvalid.ResourceName(name);

        var desktop = await repository.GetByNameAsync(name) as Desktop
                      ?? throw new NotFoundException($"Desktop '{name}' not found.");

        if (desktop.Gpus == null || index < 0 || index >= desktop.Gpus.Count)
            throw new NotFoundException($"GPU index {index} not found on desktop '{name}'.");

        desktop.Gpus[index] = updated;

        await repository.UpdateAsync(desktop);
    }
}