using System;
using Autofac;
using Chernobyl.App.Core;
using Chernobyl.App.Layout;
using Chernobyl.Config;
using Chernobyl.Creation;
using Chernobyl.Extensions;
using Chernobyl.Graphics;
using Chernobyl.Mathematics;
using Chernobyl.Mathematics.Geometry;
using Chernobyl.Mathematics.Vectors;

namespace Chernobyl.App.Visual
{
    /// <summary>
    /// Injects the visual services.
    /// </summary>
    public class Module : Autofac.Module
    {
        /// <inheritdoc />
        protected override void Load(ContainerBuilder builder)
        {
            builder.BindTemplateResourceAuto();

            // The factory that creates visual patterns.
            builder.RegisterType<VisualFactory>()
                .As<IBuilder<Content>, IFactory<Content>>()
                .WithMetadata<FactoryMetadata>(c => c.For(fm => fm.CreationName, "Visual"))
                .SingleInstance();

            // The method that determines the color of each pixel in the images created by VisualFactory.
            builder.Register(context =>
            {
                // TODO: Add the following modules that can be connected together:
                // -    A module that controls the composition of the image
                //      -   For example: putting more shading here than over there.
                // -    A module that creates lines (probably using the shading module?)
                //      -   Add the ability to control chaotic nature of the the line

                return Func.StaticFactory(ColorHsla.Black)
                        .To2D()
                        .Replace(Plane.Predicate.Square((.3, .3), .4, .4), pos => ColorHsla.Red)
                        .Select((hlsa, index, param) => (ColorRgba)hlsa);
            }).As<Func<Vector2d, ColorRgba>>();
        }
    }
}