godot-host-test/addons/AetherBind/BuilderExtensions.cs

using OwofGames.GodotLume;

namespace GodotHostTest.AetherBind;

public static class BuilderExtensions
{
    public static Builder AddValueProvider<TValueType, TSourceScope, TDestinationScope>(this Builder builder)
        where TValueType : class
        where TSourceScope : RootScope
        where TDestinationScope : TSourceScope
    {
        var valueProvider = new ValueProvider<TValueType>();
        return builder
            // add the setter to the source scope
            .AddScoped<IValueSetter<TValueType>, IValueSetter<TValueType>, TSourceScope>(Builder.NoDependencies,
                _ => valueProvider.Setter)
            // add the getter to the destination scope
            .AddScoped<IValueGetter<TValueType>, IValueGetter<TValueType>, TDestinationScope>(Builder.NoDependencies,
                _ => valueProvider.Getter)
            // add a factory to automatically extract TValueType from the IValueGetter<TValueType>
            .AddScoped<TValueType, TValueType, TDestinationScope>(_ => [typeof(IValueGetter<TValueType>)],
                provider => provider.Get<IValueGetter<TValueType>>().Value);
    }

    public static Builder AddValueProvider<TValueType, TScope>(this Builder builder)
        where TValueType : class
        where TScope : RootScope
    {
        return builder.AddValueProvider<TValueType, TScope, TScope>();
    }
}