#include "BarinkEngine.h"
#include "Input/InputManager.h"
#include "GLFW/glfw3.h"
#include "spdlog/spdlog.h"
#include <iostream>
void BarinkEngine::InputManager::PollEvents()
{
	for (auto it = windows.begin(); it != windows.end(); ++it) {
		(*it)->Poll();
	}
}

void BarinkEngine::InputManager::KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods) 
{

	Event KeyEvent{};
	KeyEvent.name = "KEY";
	 
	InputSystem.EmitEvent(KeyEvent);


	if (key == GLFW_KEY_A && action == GLFW_PRESS)
	{
		
		std::cout << "'a' key was pressed" << std::endl;
	}

}

void BarinkEngine::InputManager::CursorPositionCallback(GLFWwindow* window, double x, double y) 
{
	//std::cout << "Cursor Position  x: " << x << ", y: " << y << std::endl;
	Event CursorPosUpdate{};
	CursorPosUpdate.name = "UPDATE::CURSOR:POSITION";

	InputSystem.EmitEvent(CursorPosUpdate);



}

void BarinkEngine::InputManager::CursorEnterCallback(GLFWwindow* window, int entered)
{
	if (entered) {
		Event mouseEntered {};
		mouseEntered.name = "Mouse Entered Window's confines!";
		mouseEntered.argc = 0;
		
		InputSystem.EmitEvent(mouseEntered);

		

	}
	else {
		Event mouseLeft{};
		mouseLeft.name = "Mouse Left Window's confines!";
		mouseLeft.argc = 0;

		InputSystem.EmitEvent(mouseLeft);


	}
}


void BarinkEngine::InputManager::MouseButtonCallback(GLFWwindow* window, int button, int action, int mods)
{

	Event MouseButtonEvent{};
	MouseButtonEvent.name = "MOUSEBUTTON";

	InputSystem.EmitEvent(MouseButtonEvent);


	if (button == GLFW_MOUSE_BUTTON_RIGHT && action == GLFW_PRESS) {
		std::cout << "Right mouse button was pressed!" << std::endl;
	}

}

void BarinkEngine::InputManager::ScrollCallback(GLFWwindow* window, double xoffset, double yoffset)
{
	std::cout << "Scroll: x: " << xoffset << ", y: " << yoffset << std::endl;
	
	Event ScrollEvent{};
	ScrollEvent.name = "SCROLL";

	InputSystem.EmitEvent(ScrollEvent);


}


void BarinkEngine::InputManager::attach(BarinkWindow* window)
{
	
	windows.push_back(window);

	// Attach callbacks
	glfwSetKeyCallback(window->windowptr(), KeyCallback);
	glfwSetCursorPosCallback(window->windowptr(), CursorPositionCallback);
	glfwSetCursorEnterCallback(window->windowptr(), CursorEnterCallback);
	glfwSetMouseButtonCallback(window->windowptr(), MouseButtonCallback);
	glfwSetScrollCallback(window->windowptr(), ScrollCallback);

	this->Subscribe( (EventListener&)(*window));



}

BarinkEngine::InputManager::InputManager() : EventEmitter ()
{
	windows = std::vector<BarinkWindow*>();
}