#include "StartMenuScreen.h"
#include "UsernameScreen.h"
#include "SelectWorldScreen.h"
#include "ProgressScreen.h"
#include "JoinGameScreen.h"
#include "OptionsScreen.h"
#include "PauseScreen.h"
#include "InvalidLicenseScreen.h"
#include "PrerenderTilesScreen.h" // test button
//#include "BuyGameScreen.h"

#include "../../../util/Mth.h"

#include "../Font.h"
#include "../components/SmallButton.h"
#include "../components/ScrolledSelectionList.h"

#include "../../Minecraft.h"
#include "../../renderer/Tesselator.h"
#include "../../../AppPlatform.h"
#include "../../../LicenseCodes.h"
#include "SimpleChooseLevelScreen.h"
#include "../../renderer/Textures.h"
#include "../../../SharedConstants.h"

// Some kind of default settings, might be overridden in ::init
StartMenuScreen::StartMenuScreen()
:	bHost(    2, 0, 0, 160, 24, "Start Game"),
	bJoin(    3, 0, 0, 160, 24, "Join Game"),
	bOptions( 4, 0, 0,  78, 22, "Options"),
	bBuy(     5, 0, 0, 78, 22, "Buy"),
	bTest(    999, 0, 0, 78, 22, "Create")
{
}

StartMenuScreen::~StartMenuScreen()
{
}

void StartMenuScreen::init()
{
	if (minecraft->options.username.empty()) {
		return; // tick() will redirect to UsernameScreen
	}

	buttons.push_back(&bHost);
	buttons.push_back(&bJoin);
	//buttons.push_back(&bTest);

	tabButtons.push_back(&bHost);
	tabButtons.push_back(&bJoin);

	#ifndef RPI
		buttons.push_back(&bOptions);
		tabButtons.push_back(&bOptions);
	#endif

	#ifdef DEMO_MODE
		buttons.push_back(&bBuy);
		tabButtons.push_back(&bBuy);
	#endif

	copyright = "\xffMojang AB";//. Do not distribute!";

	// always show base version string, suffix was previously added for Android builds
	std::string versionString = Common::getGameVersionString();

	#ifdef DEMO_MODE
	#ifdef __APPLE__
		version = versionString + " (Lite)";
	#else
		version = versionString + " (Demo)";
	#endif
	#else
		#ifdef RPI
			version = "v0.1.1 alpha";//(MCPE " + versionString + " compatible)";
		#else
			version = versionString;
		#endif
	#endif

	bJoin.active = bHost.active = bOptions.active = false;
}

void StartMenuScreen::setupPositions() {
	int yBase = height / 2 + 25;

	//#ifdef ANDROID
	bHost.y =	 yBase - 28;
#ifdef RPI
	bJoin.y =	 yBase + 4;
#else
	bJoin.y =	 yBase;
#endif

	bOptions.y = yBase + 28 + 2;
	bTest.y = bBuy.y = bOptions.y;
	//#endif

	// Center buttons
	bHost.x = (width - bHost.width) / 2;
	bJoin.x = (width - bJoin.width) / 2;
	bOptions.x = (width - bJoin.width) / 2;
	bTest.x = bBuy.x = bOptions.x + bOptions.width + 4;

	copyrightPosX = width - minecraft->font->width(copyright) - 1;
	versionPosX = (width - minecraft->font->width(version)) / 2;// - minecraft->font->width(version) - 2;
}

void StartMenuScreen::tick() {
	if (minecraft->options.username.empty()) {
		minecraft->setScreen(new UsernameScreen());
		return;
	}
	_updateLicense();
}

void StartMenuScreen::buttonClicked(Button* button) {

	if (button->id == bHost.id)
	{
        #if defined(DEMO_MODE) || defined(APPLE_DEMO_PROMOTION)
			minecraft->setScreen( new SimpleChooseLevelScreen("_DemoLevel") );
		#else
			minecraft->screenChooser.setScreen(SCREEN_SELECTWORLD);
		#endif
	}
	if (button->id == bJoin.id)
	{
		minecraft->locateMultiplayer();
		minecraft->screenChooser.setScreen(SCREEN_JOINGAME);
	}
	if (button->id == bOptions.id)
	{
		minecraft->setScreen(new OptionsScreen());
	}
	if (button->id == bTest.id)
	{
		//minecraft->setScreen(new PauseScreen());
		//minecraft->setScreen(new PrerenderTilesScreen());
	}
	if (button->id == bBuy.id)
	{
		minecraft->platform()->buyGame();
		//minecraft->setScreen(new BuyGameScreen());
	}
}

bool StartMenuScreen::isInGameScreen() { return false; }

void StartMenuScreen::render( int xm, int ym, float a )
{
	renderBackground();

#if defined(RPI)
	TextureId id = minecraft->textures->loadTexture("gui/pi_title.png");
#else
	TextureId id = minecraft->textures->loadTexture("gui/title.png");
#endif
	const TextureData* data = minecraft->textures->getTemporaryTextureData(id);

	if (data) {
		minecraft->textures->bind(id);

		const float x = (float)width / 2;
		const float y = 4;
		//const float scale = Mth::Min(
		const float wh = Mth::Min((float)width/2.0f, (float)data->w / 2);
		const float scale = 2.0f * wh / (float)data->w;
		const float h = scale * (float)data->h;

		// Render title text
		Tesselator& t = Tesselator::instance;
		glColor4f2(1, 1, 1, 1);
		t.begin();
		t.vertexUV(x-wh, y+h, blitOffset, 0, 1);
		t.vertexUV(x+wh, y+h, blitOffset, 1, 1);
		t.vertexUV(x+wh, y+0, blitOffset, 1, 0);
		t.vertexUV(x-wh, y+0, blitOffset, 0, 0);
		t.draw();
	}

#if defined(RPI)
	if (Textures::isTextureIdValid(minecraft->textures->loadAndBindTexture("gui/logo/raknet_high_72.png")))
		blit(0, height - 12, 0, 0, 43, 12, 256, 72+72);
#endif

	drawString(font, version, versionPosX, 62, /*50,*/ 0xffcccccc);//0x666666);
	drawString(font, copyright, copyrightPosX, height - 10, 0xffffff);
	glEnable2(GL_BLEND);
	glBlendFunc2(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glColor4f2(1, 1, 1, 1);
	if (Textures::isTextureIdValid(minecraft->textures->loadAndBindTexture("gui/logo/github.png")))
		blit(2, height - 10, 0, 0, 8, 8, 256, 256);
{
			std::string txt = "Kolyah35/minecraft-pe-0.6.1";
			float wtxt = font->width(txt);
			Gui::drawColoredString(font, txt, 12, height - 10, 255);
			// underline link
			float y0 = height - 10 + font->lineHeight - 1;
			this->fill(12, (int)y0, 12 + (int)wtxt, (int)(y0 + 1), 0xffffffff);
    }
}

void StartMenuScreen::_updateLicense()
{
	int id = minecraft->getLicenseId();
	if (LicenseCodes::isReady(id))
	{
		if (LicenseCodes::isOk(id))
			bJoin.active = bHost.active = bOptions.active = true;
		else
		{
			bool hasBuyButton = minecraft->platform()->hasBuyButtonWhenInvalidLicense();
			minecraft->setScreen(new InvalidLicenseScreen(id, hasBuyButton));
		}
	} else {
		bJoin.active = bHost.active = bOptions.active = false;
	}
}

void StartMenuScreen::mouseClicked(int x, int y, int buttonNum) {
	const int logoX = 2;
	const int logoW = 8 + 2 + font->width("Kolyah35/minecraft-pe-0.6.1");
	const int logoY = height - 10;
	const int logoH = 10;
	if (x >= logoX && x <= logoX + logoW && y >= logoY && y <= logoY + logoH)
		minecraft->platform()->openURL("https://gitea.sffempire.ru/Kolyah35/minecraft-pe-0.6.1");
	else
		Screen::mouseClicked(x, y, buttonNum);
}

bool StartMenuScreen::handleBackEvent( bool isDown ) {
	minecraft->quit();
	return true;
}