#include "Game.h"
#include "Score.h"

#include <QGraphicsView>
#include <QGraphicsScene>
#include <QMediaPlayer>
#include <QMediaPlaylist>
#include <QSoundEffect>
#include <QTime>
#include <QTimer>

Game::Game(int &argc, char **argv, int flags)
	: QApplication(argc, argv, flags)
	, scene(nullptr)
	, view(nullptr)
	, score(nullptr)
{
}

Game::~Game()
{
	delete scene;
	delete view;
}

int Game::run()
{
	// Init the random seed
	qsrand(QTime::currentTime().msec());

	// An invisible object that manages all the items
	scene = new QGraphicsScene();

	// Any visible item to place in the scene
	view = new QGraphicsView(scene);
	view->resize(800, 600);

	// Set a black background and add a nebula over it
	view->setBackgroundBrush(QBrush(Qt::black, Qt::SolidPattern));
//	scene->addItem( new QGraphicsPixmapItem(QPixmap(":/Resources/Background.png")) );

	// The scene has infinite size, but we want it has the same size than the view
	// This stops the weird behavior of the autoscroll feature of the view being smaller than the
	// scene, because the scene auto-increases to include the bullets being moved
	scene->setSceneRect( view->rect() );

	// Disable scrollbars because they are not needed
	view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

	// A label to show the player score
	score = new Score(tr("Score"), 0, Qt::blue);
	score->setPos(0, 0);
	scene->addItem(score);

	// Load the graphic resources
//	svgRenderer = new QSvgRenderer(QString(":/Resources/Graphics.svg"), this);

	// Create the player control
/*	Player* player = new Player();
	player->setSharedRenderer(svgRenderer);
	scene->addItem(player);
	player->setInitialPos();
*/
/*
	// Launch an enemy periodically
	QTimer timer;
	connect(&timer, &QTimer::timeout, this, &Game::launchEnemy);
	timer.start(2500);
*/
	// Play background music
//	playBackgroundMusic("BackgroundMusic.mp3");

	// Show the view and enter in application's event loop
	view->show();
	return exec();
}

void Game::playBackgroundMusic(const QString& audioFilename)
{
	QMediaPlaylist *playlist = new QMediaPlaylist();
	playlist->setPlaybackMode(QMediaPlaylist::Loop);

  #ifdef Q_OS_OSX
	playlist->addMedia(QUrl::fromLocalFile(Game::applicationDirPath() + "/Resources/" + audioFilename));
  #else
	playlist->addMedia(QUrl("qrc:/Resources/" + audioFilename));
  #endif

	QMediaPlayer* mediaPlayer = new QMediaPlayer(this);
	mediaPlayer->setPlaylist(playlist);
	mediaPlayer->setVolume(75); // 75%
	mediaPlayer->play();
}

void Game::launchEnemy()
{
/*
	Enemy* enemy = new Enemy(this);
	scene->addItem(enemy);
	enemy->setInitialPos();
*/
}