#include <stdio.h>
#include <stdlib.h>
#define IMGL3W_IMPL
#include "opengl3_loader.h"
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#if defined(__SWITCH__)
#include <switch.h>

extern "C" void userAppInit()
{
  socketInitializeDefault();
  nxlinkStdio();
  appletSetWirelessPriorityMode(AppletWirelessPriorityMode_OptimizedForWlan);
  plInitialize(PlServiceType_User);
}

extern "C" void userAppExit()
{
  plExit();
  socketExit();
}
#endif

static void die(const char *msg)
{
  fprintf(stderr, "%s\n", msg);
  exit(1);
}

static void glfwKeyCallback(GLFWwindow *window, int key, int scancode, int action, int mods)
{
  if (action == GLFW_PRESS)
    printf("glfwKeyCallback %d scancode %d\n", key, scancode);
}

// Main code
int main(int argc, char *argv[])
{
  if (!glfwInit())
    die("init glfw failed");

  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
  glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);

  // Create window with graphics context
  GLFWwindow *window = glfwCreateWindow(800, 450, "GLTEXT", NULL, NULL);
  if (!window)
  {
    glfwTerminate();
    return -1;
  }
  glfwMakeContextCurrent(window);
  imgl3wInit2(glfwGetProcAddress);
  glfwSwapInterval(1);
  glfwSetTime(0);
  glfwSetKeyCallback(window, glfwKeyCallback);

  int fbw = 0, fbh = 0;
  // Main loop
  while (!glfwWindowShouldClose(window))
  {
    glfwGetFramebufferSize(window, &fbw, &fbh);
    glViewport(0, 0, fbw, fbh);

    glfwSwapBuffers(window);
    glfwWaitEvents();
  }

  glfwDestroyWindow(window);
  glfwTerminate();

  return 0;
}