using System;
using gaemstone;
using gaemstone.Bloxel;
using gaemstone.Client;
using gaemstone.ECS;
using gaemstone.Utility;
using Silk.NET.Maths;
using Silk.NET.OpenGL;
using Silk.NET.Windowing;
using static flecs_hub.flecs;
using static gaemstone.Client.CameraModule;
using static gaemstone.Client.Input;
using static gaemstone.Client.Windowing;

var universe = new Universe();
var game = universe.Lookup<Game>();
Resources.ResourceAssembly = typeof(Program).Assembly;

var window = Window.Create(WindowOptions.Default with {
	Title = "gæmstone",
	Size  = new(1280, 720),
	FramesPerSecond = 60.0,
	PreferredDepthBufferBits = 24,
});
window.Initialize();
window.Center();

universe.RegisterModule<Windowing>();

game.Set(new Canvas(window.CreateOpenGL()));
game.Set(new GameWindow(window));

TextureManager.Initialize(universe);

universe.RegisterComponent<Mesh>();
universe.RegisterComponent<gaemstone.Client.Texture>();
universe.RegisterComponent<TextureCoords4>();

universe.RegisterModule<Input>();
universe.RegisterModule<CameraModule>();
universe.RegisterModule<Renderer>();

game.Set(new RawInput());

// TODO: Find a way to automatically register this chunk storage.
universe.RegisterComponent<ChunkPaletteStorage<ecs_entity_t>>();
universe.RegisterAll(typeof(Chunk).Assembly);

universe.Create("MainCamera")
	.Set(Camera.Default3D)
	.Set((GlobalTransform)Matrix4X4.CreateTranslation(0.0F, 2.0F, 0.0F))
	.Set(new CameraController { MouseSensitivity = 12.0F });

var heartMesh = MeshManager.Load(universe, "heart.glb");
var swordMesh = MeshManager.Load(universe, "sword.glb");

var rnd = new Random();
for (var x = -12; x <= 12; x++)
for (var z = -12; z <= 12; z++) {
	var position = Matrix4X4.CreateTranslation(x * 2, 0.0F, z * 2);
	var rotation = Matrix4X4.CreateRotationY(rnd.NextFloat(MathF.PI * 2));
	universe.Create()
		.Set((GlobalTransform)(rotation * position))
		.Set(rnd.Pick(heartMesh, swordMesh));
}

var texture = TextureManager.Load(universe, "terrain.png");

var stone = universe.Create("Stone").Set(TextureCoords4.FromGrid(4, 4, 1, 0));
var dirt  = universe.Create("Dirt" ).Set(TextureCoords4.FromGrid(4, 4, 2, 0));
var grass = universe.Create("Grass").Set(TextureCoords4.FromGrid(4, 4, 3, 0));

var sizeH = 4;
var sizeY = 2;
for (var cx = -sizeH; cx < sizeH; cx++)
for (var cy = -sizeY; cy < sizeY; cy++)
for (var cz = -sizeH; cz < sizeH; cz++) {
	var pos     = new ChunkPos(cx, cy - 2, cz);
	var storage = new ChunkPaletteStorage<ecs_entity_t>(default);
	universe.Create()
		.Set((GlobalTransform)Matrix4X4.CreateTranslation(pos.GetOrigin()))
		.Set(new Chunk(pos))
		.Set(storage)
		.Set(texture);
}

window.Render += (delta) => {
	if (!universe.Progress(TimeSpan.FromSeconds(delta)))
		window.Close();
};
window.Run();