#include <cstdlib>
#include <GLFW/glfw3.h>

// Function prototypes
void Init();
void Terminate();

/// <summary>
/// A simple class to mimic was Vixnil described
/// </summary>
class CustomWindowObject
{
public:
    // Constructor
    CustomWindowObject()
    {
        m_window = glfwCreateWindow(500, 500, "Vixnil Test", nullptr, nullptr);
    }

    // Destructor
    ~CustomWindowObject()
    {
        if (m_window)
        {
            glfwDestroyWindow(m_window);
            m_window = nullptr;
        }
    }

    // Public property
    GLFWwindow* m_window;
};

/// <summary>
/// Main entry point
/// </summary>
int main(int argc, const char** argv)
{
    // Attempt to initialize GLFW
    Init();

    // Set some window hints
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
#endif // __APPLE__

    // Create the window
    auto myWindow = new CustomWindowObject();

    // Begin the draw loop
    while (!glfwWindowShouldClose(myWindow->m_window))
    {
        glfwSwapBuffers(myWindow->m_window);
        glfwPollEvents();
    }

    // Delete the custom window object
    delete myWindow;
    myWindow = nullptr;

    // Terminate the app
    Terminate();

    // Satisfy the main function
    return 0;
}

/// <summary>
/// Attempt to initialize the app
/// </summary>
void Init()
{
    if (!glfwInit())
    {
        exit(EXIT_FAILURE);
    }
}

/// <summary>
/// Terminates the app
/// </summary>
void Terminate()
{
    glfwTerminate();
}