#include "server.h"
#include <iostream>
#include <SFGUI\SFGUI.hpp>
#include <SFML\Network.hpp>
#include <SFML/Graphics.hpp>
#include "Structure.h"
#include "Propriete.h"
#include "Affichage.h"
#include "Interface.h"
#include <iostream>
#include "Constante.h"
#include "Game.h"

using namespace std;
using namespace sf;

bool once=true;
std::string text;
TcpListener listener;
SocketSelector selector;
vector<sf::TcpSocket* > clientList;
float timeTimeout = 0,interval = 0.01,lastTime = 0;

void sendBallPosition(TcpSocket* client) // Envoi de la position de la balle aux clients
{
    Game& game = Game::Instance();

    sf::Packet posBall;
    posBall << game.GetBall()->position.x << game.GetBall()->position.y;
    client->send(posBall);
}

void sendBarPosition(TcpSocket* client) // Envoi la position des barres aux clients
{
    Game& game = Game::Instance();

    sf::Packet posBar;
    posBar << game.GetPlayerOne()->getPosition().x << game.GetPlayerOne()->getPosition().y<< game.GetPlayerTwo()->getPosition().x << game.GetPlayerTwo()->getPosition().y;

    client->send(posBar);
}

bool collisionChecker(sf::Vector2f pos1,sf::Vector2f pos2,sf::Vector2f size1,sf::Vector2f size2) // vérifie les collisions
{
    if((pos2.x >= pos1.x + size1.x)
        || (pos2.x + size2.x <= pos1.x)
        || (pos2.y >= pos1.y + size1.y)
        || (pos2.y + size2.y <= pos1.y))
        return false;
    else
        return true;
}

void startServer(float gameTime)
{
    Game& game = Game::Instance();
    if(once) // Create the server
    {
        once = false;
        if (listener.listen(7000) == sf::Socket::Done) // si le serveur peut écouter le port
            selector.add(listener);
        else
            cout << "ecoute du port 7000 impossible" << endl;
    }

    game.GetBall()->move(); // deplace la balle (via une donnée fixe pour le moment)
    if(gameTime > lastTime+interval) // evite d'envoyer trop vite les données
    {
        lastTime = gameTime;
        if(clientList.size() > 0) // si il y'a au moins un joueur
            timeTimeout = 10;
        else
            timeTimeout = 0.1;

        if(collisionChecker(game.GetBall()->position,game.GetPlayerOne()->getPosition(), game.GetBall()->getSize(),game.GetPlayerOne()->getSize())
            || collisionChecker(game.GetBall()->position,game.GetPlayerTwo()->getPosition(), game.GetBall()->getSize(),game.GetPlayerTwo()->getSize()))
        {
            game.GetBall()->velocite = -game.GetBall()->velocite; // si collision inverse la trajectoire
        }

        if (selector.wait(sf::seconds(timeTimeout))) // else timeout
        {
            if(selector.isReady(listener)) //pending connection
            {
                TcpSocket* client = new TcpSocket;
                if(listener.accept(*client) == Socket::Done) // si le client est accepté
                {
                    client->setBlocking(false);
                    clientList.push_back(client);
                    selector.add(*client);
                    cout << "Connexion de : " << client->getRemoteAddress() << endl;

                    Packet nbPlayer;
                    nbPlayer <<clientList.size();
                    cout << clientList.size() <<endl;;
                    client->send(nbPlayer); // envoi le numero du joueur (joueur 1 / 2)
                }
                else //refused connection
                    delete client;
            }
            if(clientList.size() > 0) // si il y a au moins un joueur
            {
                for(unsigned int i=0;i<clientList.size();i++)
                {
                    sendBallPosition(clientList[i]); // envoi la position de la balle
                    Packet answer;
                    if(selector.isReady(*clientList[i])) // le client envoi un message
                    {
                        clientList[i]->receive(answer);
                        int movementWant,player;
                        if(answer >> movementWant >> player)
                        {
                            if(movementWant == LEFT)
                            {
                                if(player == PLAYER_ONE)
                                    game.GetPlayerOne()->move(Vector2f(-10,0));
                                else if(player == PLAYER_TWO)
                                    game.GetPlayerTwo()->move(Vector2f(-10,0));
                            }
                            else if(movementWant == RIGHT)
                            {
                                if(player == PLAYER_ONE)
                                    game.GetPlayerOne()->move(Vector2f(10,0));
                                else if(player == PLAYER_TWO)
                                    game.GetPlayerTwo()->move(Vector2f(10,0));
                            }

                        }
                    }
                    sendBarPosition(clientList[i]); // envoi la position des barres
                }
            }
        }
    }
}