#include <iostream>
#include <Ogre.h>
#include <OgreTerrain.h>
#include <OgreTerrainGroup.h>
#include <Jolt/Jolt.h>
#include <Jolt/Physics/Body/BodyID.h>
#include "GameData.h"
#include "Components.h"
#include "CharacterModule.h"
#include "WaterModule.h"
#include "TerrainModule.h"
#include "SunModule.h"
#include "GUIModule.h"
#include "LuaData.h"
#include "WorldMapModule.h"
#include "BoatModule.h"
#include "EventTriggerModule.h"
#include "CharacterAnimationModule.h"
#include "PhysicsModule.h"
#include "EventModule.h"
#include "CharacterManagerModule.h"
#include "VehicleManagerModule.h"
#include "AppModule.h"
#include "world-build.h"

namespace ECS
{
static flecs::world ecs;
void setup_minimal()
{
	ecs.component<EngineData>().add(flecs::Singleton);
	ecs.component<GameData>().add(flecs::Singleton);
	ecs.component<Input>().add(flecs::Singleton);
	ecs.component<Camera>().add(flecs::Singleton);
	ecs.import <GameWorldModule>();
	ecs.import <EventModule>();
	ecs.import <CharacterManagerModule>();
	ecs.import <VehicleManagerModule>();
	ecs.import <WaterModule>();
	ecs.import <AppModule>();
	/* lots of things depend on it */
	ecs.component<Body2Entity>().add(flecs::Singleton);
}
void setupExteriorScene(Ogre::SceneManager *scnMgr, Ogre::SceneNode *cameraNode,
			Ogre::Camera *camera, Ogre::RenderWindow *window)
{
	std::cout << "Setup GameData\n";
	setup_minimal();
	ecs.component<RenderWindow>().add(flecs::Singleton);
	ecs.import <CharacterModule>();
	ecs.import <BoatModule>();
	ecs.import <PhysicsModule>();
	ecs.import <WaterModule>();
	ecs.import <SunModule>();
	ecs.import <TerrainModule>();
	ecs.import <GUIModule>();
	ecs.import <EventTriggerModule>();
	ecs.import <LuaModule>();
	ecs.import <WorldMapModule>();
	ecs.import <CharacterAnimationModule>();

	ecs.system<EngineData>("UpdateDelta")
		.kind(flecs::OnUpdate)
		.each([](EngineData &eng) {
			eng.delta = ECS::get().delta_time();
		});
	ecs.system<EngineData>("UpdateDelay")
		.kind(flecs::OnUpdate)
		.with<TerrainReady>()
		.with<WaterReady>()
		.with<GroundCheckReady>()
		.each([](EngineData &eng) {
			if (eng.startupDelay >= 0.0f)
				eng.startupDelay -= eng.delta;
#ifdef VDEBUG
			if (ECS::get().has<GroundCheckReady>())
				std::cout << "ground check ready\n";
#endif
		});
	ecs.system<EngineData>("CheckStatus")
		.kind(flecs::OnUpdate)
		.run([](flecs::iter &it) {
#ifdef VDEBUG
			if (ECS::get().has<WaterReady>())
				std::cout << "water ready\n";
			if (ECS::get().has<TerrainReady>())
				std::cout << "terrain ready\n";
			if (ECS::get().has<GroundCheckReady>())
				std::cout << "ground check ready\n";
#endif
		});
	ecs.set<EngineData>({ scnMgr, 0.0f, 5.0f, (int)window->getWidth(),
			      (int)window->getHeight(), false });
	ecs.set<Camera>({ cameraNode, camera, false });
	ecs.add<GameData>();
	ecs.add<Input>();
	ecs.add<WaterSurface>();
	ecs.set<Sun>({ nullptr, nullptr, nullptr, nullptr });
	ecs.set<Terrain>({ nullptr,
			   nullptr,
			   nullptr,
			   nullptr,
			   nullptr,
			   nullptr,
			   nullptr,
			   false,
			   { 0, 0, 0 } });
	if (!ecs.has<LuaBase>())
		ecs.add<LuaBase>();
	if (!ecs.has<LuaEvent>())
		ecs.set<LuaEvent>({});

	// ecs.set<Body2Entity>({});
	std::cout << "Setup GameData done\n";
	ecs.system("SpawnPlayer").kind(flecs::OnUpdate).interval(0.5f).run([&](flecs::iter &it) {
		flecs::entity player =
			ECS::get<CharacterManagerModule>().getPlayer();
		if (!player.is_valid()) {
			/* Create player */
			Ogre::Vector3 position;
			JPH::BodyID id;
			long x, y;
			Ogre::TerrainGroup *tg =
				ECS::get<ECS::Terrain>().mTerrainGroup;
			if (tg->isDerivedDataUpdateInProgress())
				return;
			tg->convertWorldPositionToTerrainSlot(
				Ogre::Vector3(0, 0, 4), &x, &y);
			Ogre::Terrain *terrain = tg->getTerrain(x, y);
			if (terrain && terrain->isLoaded()) {
				if (PhysicsModule::raycastQuery(
					    Ogre::Vector3(0, 500, 4),
					    Ogre::Vector3(0, -500, 4), position,
					    id)) {
					if (position.y < -10.0f &&
					    position.y > -50.0f) {
						player =
							ecs.get_mut<
								   CharacterManagerModule>()
								.createPlayer(
									{ position.x,
									  position.y,
									  position.z },
									Ogre::Quaternion(
										Ogre::Radian(
											Ogre::Math::
												PI),
										Ogre::Vector3::
											UNIT_Y));
						std::cout << position
							  << std::endl;
						// OgreAssert(false, "spawn");
					}
				}
			}
		}
	});
}
void setupInteriorScene(Ogre::SceneManager *scnMgr, Ogre::SceneNode *cameraNode,
			Ogre::Camera *camera, Ogre::RenderWindow *window)
{
}

void setupInventoryScene(Ogre::SceneManager *scnMgr,
			 Ogre::SceneNode *cameraNode, Ogre::Camera *camera,
			 Ogre::RenderWindow *window)
{
}

void setupEditor(Ogre::SceneManager *scnMgr, Ogre::SceneNode *cameraNode,
		 Ogre::Camera *camera, Ogre::RenderWindow *window)
{
	std::cout << "Setup Editor\n";
	setup_minimal();
	ecs.component<RenderWindow>().add(flecs::Singleton);
	ecs.component<EditorSceneSwitch>().add(flecs::Singleton);
	ecs.import <CharacterModule>();
	ecs.import <BoatModule>();
	ecs.import <PhysicsModule>();
	ecs.import <WaterModule>();
	ecs.import <SunModule>();
	ecs.import <TerrainModule>();
	ecs.import <EditorGUIModule>();
	ecs.import <EventTriggerModule>();
	ecs.import <LuaModule>();
	// ecs.import <WorldMapModule>();
	ecs.import <CharacterAnimationModule>();

	ecs.system<EngineData>("UpdateDelta")
		.kind(flecs::OnUpdate)
		.each([](EngineData &eng) {
			eng.delta = ECS::get().delta_time();
		});
	ecs.system<EngineData>("UpdateDelay")
		.kind(flecs::OnUpdate)
		.with<TerrainReady>()
		.with<WaterReady>()
		.with<GroundCheckReady>()
		.each([](EngineData &eng) {
			if (eng.startupDelay >= 0.0f)
				eng.startupDelay -= eng.delta;
#ifdef VDEBUG
			if (ECS::get().has<GroundCheckReady>())
				std::cout << "ground check ready\n";
#endif
		});
	ecs.system<EngineData>("CheckStatus")
		.kind(flecs::OnUpdate)
		.run([](flecs::iter &it) {
#ifdef VDEBUG
			if (ECS::get().has<WaterReady>())
				std::cout << "water ready\n";
			if (ECS::get().has<TerrainReady>())
				std::cout << "terrain ready\n";
			if (ECS::get().has<GroundCheckReady>())
				std::cout << "ground check ready\n";
#endif
		});
	ecs.set<EngineData>({ scnMgr, 0.0f, 5.0f, (int)window->getWidth(),
			      (int)window->getHeight(), false });
	ecs.set<Camera>({ cameraNode, camera, false });
#if 0
    ecs.set<EditorSceneSwitch>({ 0 });
#endif
	ecs.add<GameData>();
	ecs.add<Input>();
	ecs.add<WaterSurface>();
	ecs.set<Sun>({ nullptr, nullptr, nullptr, nullptr });
	ecs.set<Terrain>({ nullptr,
			   nullptr,
			   nullptr,
			   nullptr,
			   nullptr,
			   nullptr,
			   nullptr,
			   false,
			   { 0, 0, 0 } });
	ecs.set<GUI>({ true, true, true, false, false, "", {}, -1 });
	ecs.get_mut<GUI>().enabled = true;
	ecs.get_mut<GUI>().setWindowGrab(false);
	ecs.modified<GUI>();
	ecs.get_mut<GUI>().setWindowGrab(true);
	ecs.modified<GUI>();
	ecs.get_mut<GUI>().enabled = true;
	ecs.modified<GUI>();
}

void update(float delta)
{
	ecs.progress(delta);
}
flecs::world get()
{
	return ecs;
}
bool Vector3::zeroLength() const
{
	float l = x * x + y * y + z * z;
	return (l < 1e-06 * 1e-06);
}

}