using Content.Client.UserInterface.Controls;
using Content.Shared.Power.Generator;
using Robust.Client.AutoGenerated;
using Robust.Client.UserInterface.XAML;

namespace Content.Client.Power.Generator;

[GenerateTypedNameReferences]
public sealed partial class GeneratorWindow : FancyWindow
{
    [Dependency] private readonly IEntityManager _entityManager = default!;

    private readonly FuelGeneratorComponent? _component;
    private SolidFuelGeneratorComponentBuiState? _lastState;

    public GeneratorWindow(SolidFuelGeneratorBoundUserInterface bui, EntityUid vis)
    {
        RobustXamlLoader.Load(this);
        IoCManager.InjectDependencies(this);

        _entityManager.TryGetComponent(vis, out _component);

        EntityView.SetEntity(vis);
        TargetPower.IsValid += IsValid;
        TargetPower.ValueChanged += (args) =>
        {
            bui.SetTargetPower(args.Value);
        };
    }

    private bool IsValid(int arg)
    {
        if (arg < 0)
            return false;

        if (arg > (_lastState?.MaximumPower / 1000.0f ?? 0))
            return false;

        return true;
    }

    public void Update(SolidFuelGeneratorComponentBuiState state)
    {
        if (_component == null)
            return;

        var oldState = _lastState;
        _lastState = state;
        // ReSharper disable once CompareOfFloatsByEqualityOperator
        if (oldState?.TargetPower != state.TargetPower)
            TargetPower.OverrideValue((int)(state.TargetPower / 1000.0f));
        Efficiency.Text = SharedGeneratorSystem.CalcFuelEfficiency(state.TargetPower, state.OptimalPower, _component).ToString("P1");
        FuelFraction.Value = state.RemainingFuel - (int) state.RemainingFuel;
        FuelLeft.Text = ((int) MathF.Floor(state.RemainingFuel)).ToString();

    }
}