#include <iostream>
#include <cmath>
#include <string>
#include <sstream>
#include <SFML/Graphics.hpp>

using std::cout;
using std::endl;
using sf::Text;

int main ()
{
    // Create the main window
    sf::RenderWindow window(sf::VideoMode(800, 600, 32), "Joystick Use", sf::Style::Default);
    sf::Event e;

    int buttonCount;
    int turbo = 1;  // this can be changed
    bool connected;
    connected = sf::Joystick::isConnected(0);
    if (connected)
    {
        std::cout << "Joystick 0 is connected   ";
        buttonCount = sf::Joystick::getButtonCount(0);
        cout << " button count = " << buttonCount << endl;
    }
    else
    {
        std::cout << "No game controller connected" << endl;
    }

    sf::RectangleShape square;
    square.setFillColor(sf::Color(255, 0, 0, 255));
    square.setPosition(static_cast<float>(window.getSize().x / 2), static_cast<float>(window.getSize().y / 2));
    square.setOutlineColor(sf::Color(0, 0, 0, 255));
    square.setSize(sf::Vector2f(50.f, 50.f));

    sf::Joystick::Identification id = sf::Joystick::getIdentification(0);
    std::cout << "\nVendor ID: " << id.vendorId << "\nProduct ID: " << id.productId << std::endl;
    sf::String controller("Joystick Use: " + id.name);
    window.setTitle(controller);//easily tells us what controller is connected

    bool hasAxis;
    hasAxis = sf::Joystick::hasAxis(0, sf::Joystick::X);
    if (hasAxis)
        cout << "Has X axis\n";
    hasAxis = sf::Joystick::hasAxis(0, sf::Joystick::Y);
    if (hasAxis)
        cout << "Has Y axis\n";
    hasAxis = sf::Joystick::hasAxis(0, sf::Joystick::Z);
    if (hasAxis)
        cout << "Has Z axis\n";

    // Load font
    sf::Font myFont;
    if (!myFont.loadFromFile("steelfish_rg.ttf"))
    {
        cout << "Error loading font file!" << endl;
        return 1;
    }

    Text buttonText ("", myFont);

    //for movement
    sf::Vector2f speed = sf::Vector2f(0.f,0.f);

    // time
    sf::Clock tickClock;
    sf::Time timeSinceLastUpdate = sf::Time::Zero;
    sf::Time TimePerFrame = sf::seconds(1.f / 60.f);

    // Start the game loop
    while (window.isOpen())
    {
        if (connected)
            buttonText.setString(std::string("Press any button\nEsc to exit "));
        else
        {
            buttonText.setString(std::string("Please connect a game controller"));
            connected = sf::Joystick::isConnected(0);
        }
        // Process events
        bool running = true;
        while (running)
        {
            while (window.pollEvent(e))
            {
                if (e.type == sf::Event::KeyPressed)
                {
                    switch (e.key.code)
                    {
                    case sf::Keyboard::Escape:
                    {
                        window.close();
                        return 0;
                    }
                    break;
                    default:
                        break;
                    }
                }

                if (e.type == sf::Event::JoystickMoved)
                {
                    std::cout << "X axis: " << speed.x << std::endl;
                    std::cout << "Y axis: " << speed.y << std::endl;
                }

                if (sf::Joystick::isButtonPressed(0, 0)) //"A" button on the XBox 360 controller
                {
                    turbo = 2;
                }

                if (!sf::Joystick::isButtonPressed(0, 0))
                {
                    turbo = 1;
                }

                if(sf::Joystick::isButtonPressed(0,1)) //"B" button on the XBox 360 controller
                {
                    window.close();
                    return 0;
                }

            }
            speed = sf::Vector2f(sf::Joystick::getAxisPosition(0, sf::Joystick::X), sf::Joystick::getAxisPosition(0, sf::Joystick::Y));

            timeSinceLastUpdate += tickClock.restart();
            while (timeSinceLastUpdate > TimePerFrame)
            {
                timeSinceLastUpdate -= TimePerFrame;

                //update the position of the square according to input from joystick
                //CHECK DEAD ZONES - OTHERWISE INPUT WILL RESULT IN JITTERY MOVEMENTS WHEN NO INPUT IS PROVIDED
                //INPUT RANGES FROM -100 TO 100
                //A 15% DEAD ZONE SEEMS TO WORK FOR ME - GIVE THAT A SHOT
                if (speed.x > 15.f || speed.x < -15.f || speed.y > 15.f || speed.y < -15.f)
                    square.move(turbo*speed.x*TimePerFrame.asSeconds(), turbo*speed.y*TimePerFrame.asSeconds());
            }


            // Check for buttons
            for (unsigned int i = 0; i < 10; i++)
                if (sf::Joystick::isButtonPressed (0, i))
                    std::cout << "Button " << i << " pressed\n";

            // Clear screen
            window.clear();

            window.draw(buttonText);
            window.draw(square);

            // Update the window
            window.display();

        }
        system("pause");
        return 0;

    }
}