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#include <GLGraphics/Console.h>

#include <GLGraphics/gel_glut.h>

#include <CGLA/Vec3f.h>

GLGraphics::Console console;

int width, height;

bool console_visible = true;

static void display()

{

    glClearColor(0.4f, 0.4f, 0.4f, 1.f);

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    if (console_visible)

    {

        //draw console in upper half of screen

        glPushAttrib(GL_VIEWPORT_BIT);

        glViewport(0, height-height/2,

                   width, height/2);

        console.display();

        glPopAttrib();

    }

    assert(glGetError() == GL_NO_ERROR);

    glutSwapBuffers();

}

static void reshape(int w, int h)

{

    width = w;

    height = h;

    glViewport( 0, 0, width, height);

}

static void keyboard(unsigned char key, int x, int y)

{

    //toggle console with ESC

    if (key == 27)

    {

        console_visible = !console_visible;

        glutPostRedisplay();

        return;

    }

    if (console_visible)

    {

        console.keyboard(key);

        glutPostRedisplay();

        return;

    }

    //switch (key)

    //{

    //}

    glutPostRedisplay();

}

static void special(int key, int x, int y)

{

    if (console_visible)

    {

        console.special(key);

        glutPostRedisplay();

        return;

    }

    //switch (key)

    //{

    //}

    glutPostRedisplay();

}

int main( int argc, char *argv[] )

{

  glutInit(&argc, argv);

  glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);

  glutInitWindowSize(768, 768);

  glutInitWindowPosition(256, 256);

  glutCreateWindow(argv[0]);

  glutReshapeFunc(reshape);

  glutKeyboardFunc(keyboard);

  glutSpecialFunc(special);

  glutDisplayFunc(display);

  console.printf("GLGraphics console test.");

  console.newline();

  //some examples of use:

  console.reg_cmd("quit",

      std::bind(&std::exit, EXIT_SUCCESS), "Exit application.");

  console.reg_cmd<int>("quit",

      std::bind(&std::exit, std::placeholders::_1),

      "Exit application with specified exit code.");

  console.reg_cmd("fullscreen", std::bind(&glutFullScreen), "Switch to fullscreen.");

#if 1

  //needs lambda

  console.reg_cmd("window_pos", [&]{

      console.printf("window_pos = %i %i", glutGet(GLUT_WINDOW_X),

          glutGet(GLUT_WINDOW_Y));

  }, "Show window position.");

  console.reg_cmd("window_size", [&]{

      console.printf("window_size = %i %i", glutGet(GLUT_WINDOW_WIDTH),

          glutGet(GLUT_WINDOW_HEIGHT));

  }, "Show window position.");

#endif

  console.reg_cmd<int,int>("window_pos", std::bind(&glutPositionWindow,

      std::placeholders::_1, std::placeholders::_2),

      "Set the window position.");

  console.executef("window_pos %i %i", 384, 256);

  console.reg_cmd<int,int>("window_size", std::bind(&glutReshapeWindow,

      std::placeholders::_1, std::placeholders::_2),

      "Set the window size.");

  using namespace GLGraphics;

  Console::variable<int> test_int(42);

  test_int.reg(console, "test_int", "Some clever help string..");

  console.execute("test_int");

  console.execute("test_int 167");

  Console::variable<float> test_float(3.14f);

  test_float.reg(console, "test_float", "Well..");

  console.execute("test_float");

  console.execute("test_float 2.71");

  Console::variable<std::string> test_string("Hello, world!");

  test_string.reg(console, "test_string", "Well..");

  console.execute("test_string");

  console.execute("test_string \"some other string with spaces in\"");

  Console::variable<CGLA::Vec3f> test_Vec3f(CGLA::Vec3f(1,2,3));

  test_Vec3f.reg(console, "test_Vec3f", "Well..");

  console.execute("test_Vec3f");

  console.execute("test_Vec3f [ 12 1234 15]");

  CGLA::Vec3f in(0,1,2);

  std::stringstream ss;

  ss << in;

  CGLA::Vec3f out;

  ss >> out;

  assert(in == out);

  glutMainLoop();

  return 0;

}