#include "ScreenManager.h"

#include "FuelScreen.h"
#include "utils.h"
ScreenManager* ScreenManager::m_pInstance = nullptr;

Screen* ScreenManager::Fuel{ nullptr };
Screen* ScreenManager::SellScreen{ nullptr };

ScreenManager* ScreenManager::GetInstance() {

	if(m_pInstance == nullptr) {
		m_pInstance = new ScreenManager();
	}
	if(!m_pInstance->m_AreScreensInitialized) {
		m_pInstance->InitializeScreens(); //TODO: Ask if this a hack
		m_pInstance->m_AreScreensInitialized = true;
	}
	return m_pInstance;
}

void ScreenManager::OpenScreen(Screen* screen) {
	if(m_IsScreenOpen == false) {
		m_currentScreen = screen;
		m_IsScreenOpen = true;
	}
}
void ScreenManager::CloseScreen() {
	if(m_IsScreenOpen == true) {
		m_IsScreenOpen = false;
		m_currentScreen = nullptr;
	}

}
void ScreenManager::InitializeScreens() {
	Point2f fuelScreenSize = Point2f { 492, 396 };
	Point2f fuelScreenCenter = Point2f { utils::GetViewport().x / 2 - fuelScreenSize.x / 2, utils::GetViewport().y / 2 - fuelScreenSize.y / 2 };
	Fuel = new FuelScreen { "gui/fuel/background.png", fuelScreenCenter, fuelScreenSize, TextureManager::GetInstance() };

	Point2f closeButtonOffset = Point2f { 460, 396 - 14 };
	Point2f closeButtonPos = fuelScreenCenter + closeButtonOffset;
	closeButtonPos.y -= 18;
	Button* closeFuelButton = new Button { "gui/close.png", closeButtonPos, Point2f{0,0}, TextureManager::GetInstance() };
	closeFuelButton->SetOnClick([this]() { CloseScreen(); });
	Fuel->AddButton(closeFuelButton);

	Point2f oneDollarButtonPos = Point2f { 451, 287 };
	oneDollarButtonPos += fuelScreenCenter;
	Button* fiveDollarButton = new Button { "gui/fuel/5dollars.png", oneDollarButtonPos	, Point2f{0,0}, TextureManager::GetInstance() };
	Fuel->AddButton(fiveDollarButton);

	Point2f tenDollarButtonPos = oneDollarButtonPos + Point2f { 113, -1 };
	tenDollarButtonPos += fuelScreenCenter;
	Button* tenDollarButton = new Button { "gui/fuel/10dollars.png", tenDollarButtonPos, Point2f{0,0}, TextureManager::GetInstance() };
	Fuel->AddButton(tenDollarButton);

	Point2f twentyFiveDollarButtonPos = oneDollarButtonPos + Point2f { 0, -89 };
	twentyFiveDollarButtonPos += fuelScreenCenter;
	Button* twentyFiveDollarButton = new Button { "gui/fuel/25dollars.png", twentyFiveDollarButtonPos, Point2f{0,0}, TextureManager::GetInstance() };
	Fuel->AddButton(twentyFiveDollarButton);

	Point2f fiftyDollarButtonPos = twentyFiveDollarButtonPos + Point2f { 114, 0 };
	Button* fiftyDollarButton = new Button { "gui/fuel/50dollars.png", fiftyDollarButtonPos, Point2f{0,0}, TextureManager::GetInstance() };
	Fuel->AddButton(fiftyDollarButton);

	Point2f fillTankButtonPos = Point2f { 450, 108 };
	fillTankButtonPos += fuelScreenCenter;
	Button* fillTankButton = new Button { "gui/fuel/fillTank.png", fillTankButtonPos, Point2f{0,0}, TextureManager::GetInstance() };
	Fuel->AddButton(fillTankButton);
	
	Point2f sellScreenSize = Point2f { 533, 398 };
	Point2f sellScreenCenter = Point2f { utils::GetViewport().x / 2 - sellScreenSize.x / 2, utils::GetViewport().y / 2 - sellScreenSize.y / 2 };
	SellScreen = new Screen { "gui/sell/background.png", sellScreenCenter, sellScreenSize, TextureManager::GetInstance() };

	//m_Button = Button { "gui/close.png", closeButtonPos, closeButtonSize, TextureManager::GetInstance() };
}