module tests.tests;

import ecs.manager;
import ecs.events;
import ecs.system;
import ecs.entity;

import core.time;
import std.stdio;

int main()
{
    alias SerializeVector = ubyte[];

    struct TestComp
	{
		__gshared static int component_id;
		int a;
		ulong b;

		static void serializeComponent(ref TestComp comp, SerializeVector output)
		{

		}

		static void deserializeComponent(ref TestComp comp, ubyte[] data)
		{

		}
	}

	struct TestComp2
	{
		__gshared static int component_id;
		short b;
		ubyte a;

		static void serializeComponent(ref TestComp comp, SerializeVector output)
		{

		}

		static void deserializeComponent(ref TestComp comp, ubyte[] data)
		{

		}
	}

    struct TestSystem
	{

        void initialize(ref TestComp comp)
        {

        }

		void update(ref TestComp test, ref TestComp2 test2)//ref TestComp comp)
		{
			assert( cast(ptrdiff_t)&test % TestComp.alignof == 0 );
			assert( cast(ptrdiff_t)&test2 % TestComp2.alignof == 0 );
			import std.stdio;
            //writeln("Jakis tekst! ",test.b);
			test.a+=1000;
			test.b+=2000;
            //writeln("Jakis tekst! ",test.b);
			test2.b += 2;
			test2.a = 1;
			//writeln("Jakis tekst! ",test2.b);
		}

		void handleEvent(Event event, ref TestComp comp)
		{

		}
	}

	struct TestSystem2
	{

		void onEnable()
		{
			import std.stdio;
			writeln("TestSystem2 enabled");
		}

		void onDisable()
		{
			import std.stdio;
			writeln("TestSystem2 disabled");
		}

        void initialize(ref TestComp comp)
        {

        }

		void update(ref TestComp2 test2)//ref TestComp comp)
		{
			test2.b += 1000;
		}

		void handleEvent(Event event, ref TestComp comp)
		{

		}
	}

    EntityManager.initialize();
    assert(gEM !is null);

	MonoTime time = MonoTime.currTime;

	gEM.registerComponent!TestComp2;
    gEM.registerComponent!TestComp;

	ulong dur = (MonoTime.currTime - time).total!"usecs";
	writeln("Components register: ",dur," usecs");

	time = MonoTime.currTime;

	gEM.registerSystem!TestSystem(0);
	//gEM.registerSystem!TestSystem2(0);

	dur = (MonoTime.currTime - time).total!"usecs";
	writeln("Systems register: ",dur," usecs");

	time = MonoTime.currTime;

    ushort[2] ids = [0,1];
    EntityTemplate* tmpl = gEM.allocateTemplate(ids);
	*cast(EntityID*)tmpl.entity_data.ptr = EntityID(1,1);

	dur = (MonoTime.currTime - time).total!"usecs";
	writeln("Template allocating: ",dur," usecs");

	time = MonoTime.currTime;

	foreach(i; 0..1_000_000)gEM.addEntity(tmpl);

	dur = (MonoTime.currTime - time).total!"usecs";
	writeln("Entities adding: ",dur," usecs");

	gEM.registerSystem!TestSystem2(0);

	//assert(*(cast(EntityID*)(cast(void*)tmpl.info.first_block+24)) == EntityID(1,1));
	//assert(*(cast(EntityID*)(cast(void*)tmpl.info.first_block+48)) == EntityID(1,1));

	time = MonoTime.currTime;

    gEM.update();

	dur = (MonoTime.currTime - time).total!"usecs";
	writeln("Update: ",dur," usecs");

	//import std.stdio;
	//writeln((cast(uint*)tmpl.info.first_block)[0..48]);
	gEM.freeTemplate(tmpl);
	return 0;
}