using System.IO;
using Encompass;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using PongFE.Engines;
using PongFE.Enums;
using PongFE.Messages;
using PongFE.Renderers;
using PongFE.Spawners;
using SpriteFontPlus;

namespace PongFE
{
    class PongFEGame : Game
    {
        GraphicsDeviceManager graphics;

        WorldBuilder WorldBuilder { get; } = new WorldBuilder();
        World World { get; set; }

        SpriteBatch SpriteBatch { get; set; }
        Texture2D WhitePixel { get; set; }

        DynamicSpriteFont ScoreFont { get; set; }

        public PongFEGame()
        {
            graphics = new GraphicsDeviceManager(this);
            graphics.PreferredBackBufferWidth = 1280;
            graphics.PreferredBackBufferHeight = 720;
            graphics.PreferMultiSampling = true;
            Content.RootDirectory = "Content";

            Window.AllowUserResizing = true;
            IsMouseVisible = true;
            IsFixedTimeStep = true;
        }

        protected override void LoadContent()
        {
            SpriteBatch = new SpriteBatch(GraphicsDevice);

            WhitePixel = new Texture2D(GraphicsDevice, 1, 1);
            WhitePixel.SetData(new Color[] { Color.White });

            ScoreFont = DynamicSpriteFont.FromTtf(File.ReadAllBytes(@"Content/Fonts/SquaredDisplay.ttf"), 128);

            WorldBuilder.AddEngine(new InputEngine());
            WorldBuilder.AddEngine(new PaddleMovementEngine());
            WorldBuilder.AddEngine(new VelocityEngine());
            WorldBuilder.AddEngine(new MotionEngine());
            WorldBuilder.AddEngine(new CollisionEngine());
            WorldBuilder.AddEngine(new BounceEngine());
            WorldBuilder.AddEngine(new DestroyEngine());
            WorldBuilder.AddEngine(new ScoreEngine());
            WorldBuilder.AddEngine(new UpdatePositionEngine());
            WorldBuilder.AddEngine(new UpdateVelocityEngine());
            WorldBuilder.AddEngine(new ComputerControlEngine());

            WorldBuilder.AddEngine(new BallSpawner(WhitePixel));
            WorldBuilder.AddEngine(new BoundarySpawner());
            WorldBuilder.AddEngine(new GoalBoundarySpawner());
            WorldBuilder.AddEngine(new PaddleSpawner(WhitePixel));

            WorldBuilder.AddOrderedRenderer(new Texture2DRenderer(SpriteBatch));
            WorldBuilder.AddGeneralRenderer(new ScoreRenderer(SpriteBatch, ScoreFont), 0);

            WorldBuilder.SendMessage(
                new PaddleSpawnMessage(
                    new MoonTools.Structs.Position2D(5, 5),
                    Enums.PlayerIndex.One,
                    PaddleControl.Player,
                    20,
                    80
                )
            );

            WorldBuilder.SendMessage(
                new PaddleSpawnMessage(
                    new MoonTools.Structs.Position2D(1255, 5),
                    Enums.PlayerIndex.Two,
                    PaddleControl.Computer,
                    20,
                    80
                )
            );

            WorldBuilder.SendMessage(
                new BallSpawnMessage(
                    new MoonTools.Structs.Position2D(640, 360),
                    300,
                    16,
                    16
                )
            );

            // top boundary
            WorldBuilder.SendMessage(
                new BoundarySpawnMessage(
                    new MoonTools.Structs.Position2D(0, -6),
                    1280,
                    6
                )
            );

            // bottom boundary
            WorldBuilder.SendMessage(
                new BoundarySpawnMessage(
                    new MoonTools.Structs.Position2D(0, 720),
                    1280,
                    6
                )
            );

            // right boundary
            WorldBuilder.SendMessage(
                new GoalBoundarySpawnMessage(
                    Enums.PlayerIndex.One,
                    new MoonTools.Structs.Position2D(1280, 0),
                    6,
                    720
                )
            );

            // left boundary
            WorldBuilder.SendMessage(
                new GoalBoundarySpawnMessage(
                    Enums.PlayerIndex.Two,
                    new MoonTools.Structs.Position2D(-6, 0),
                    6,
                    720
                )
            );

            World = WorldBuilder.Build();
        }

        protected override void UnloadContent()
        {
            base.UnloadContent();
        }

        protected override void Update(GameTime gameTime)
        {
            World.Update(gameTime.ElapsedGameTime.TotalSeconds);

            base.Update(gameTime);
        }

        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.Black);

            SpriteBatch.Begin(SpriteSortMode.Deferred, BlendState.NonPremultiplied);
            World.Draw();
            SpriteBatch.End();

            base.Draw(gameTime);
        }
    }
}