/*
 * Copyright (c) 2011-2022, The DART development contributors
 * All rights reserved.
 *
 * The list of contributors can be found at:
 *   https://github.com/dartsim/dart/blob/master/LICENSE
 *
 * This file is provided under the following "BSD-style" License:
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 *   without modification, are permitted provided that the following
 *   conditions are met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 *   CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 *   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 *   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 *   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 */

#include <iostream>

#include <dart/dart.hpp>
#include <dart/utils/urdf/urdf.hpp>
#include <dart/utils/utils.hpp>

#include "Controller.hpp"
#include "MyWindow.hpp"

using namespace std;
using namespace Eigen;
using namespace dart::common;
using namespace dart::math;
using namespace dart::dynamics;
using namespace dart::simulation;
using namespace dart::utils;

int main(int argc, char* argv[])
{
  // Create empty soft world
  WorldPtr myWorld = World::create();

  // Load ground and Atlas robot and add them to the world
  DartLoader urdfLoader;
  SkeletonPtr ground
      = urdfLoader.parseSkeleton("dart://sample/sdf/atlas/ground.urdf");
  SkeletonPtr atlas = SdfParser::readSkeleton(
      "dart://sample/sdf/atlas/atlas_v3_no_head_soft_feet.sdf");
  myWorld->addSkeleton(atlas);
  myWorld->addSkeleton(ground);

  // Set initial configuration for Atlas robot
  VectorXd q = atlas->getPositions();
  q[0] = -0.5 * constantsd::pi();
  atlas->setPositions(q);

  // Set gravity of the world
  myWorld->setGravity(Vector3d(0.0, -9.81, 0.0));

  // Create a window and link it to the world
  MyWindow window(new Controller(atlas, myWorld->getConstraintSolver()));
  window.setWorld(myWorld);

  // Print manual
  cout << "space bar: simulation on/off" << endl;
  cout << "'p': playback/stop" << endl;
  cout << "'[' and ']': play one frame backward and forward" << endl;
  cout << "'v': visualization on/off" << endl;
  cout << endl;
  cout << "'h': harness pelvis on/off" << endl;
  cout << "'j': harness left foot on/off" << endl;
  cout << "'k': harness right foot on/off" << endl;
  cout << "'r': reset robot" << endl;
  cout << "'n': transite to the next state manually" << endl;
  cout << endl;
  cout << "'1': standing controller" << endl;
  cout << "'2': walking controller" << endl;

  // Run glut loop
  glutInit(&argc, argv);
  window.initWindow(640, 480, "Atlas Robot");
  glutMainLoop();

  return 0;
}
