/*
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   ### File Specific:
   main-programmer: Benjamin Grauer
   co-programmer: ...
*/

//#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_

#include "hud.h"

#include "state.h"
#include "debug.h"

#include "world_entities/weapons/weapon_manager.h"
#include "glgui_widget.h"

#include "glgui_inputline.h"
#include "specials/glgui_notifier.h"
#include "elements/glgui_radar.h"



/// HACK
#include "player.h"
#include "playable.h"

/**
 * standard constructor
 * @todo this constructor is not jet implemented - do it
*/
Hud::Hud ()
{
  this->setClassID(CL_HUD, "Hud");

  //this->setSize2D(
  this->weaponManager = NULL;
  this->energyWidget = NULL;
  this->shieldWidget = NULL;
  this->armorWidget = NULL;
  this->resX = 1;
  this->resY = 1;

  this->inputLine = new OrxGui::GLGuiInputLine();
  this->inputLine->setParent2D(this);
  this->notifier = new OrxGui::GLGuiNotifier();
  this->notifier->setParent2D(this);
  notifier->setAbsCoor2D(100,100);

  this->_radar = new OrxGui::GLGuiRadar();

  this->subscribeEvent(ES_ALL, EV_VIDEO_RESIZE);
  this->subscribeEvent(ES_ALL, SDLK_TAB);


}


/**
 * standard deconstructor
*/
Hud::~Hud ()
{
  delete this->inputLine;
  delete this->notifier;

  delete this->_radar;
  // delete what has to be deleted here
}


void Hud::loadParams(const TiXmlElement* root)
{
  Element2D::loadParams(root);
}

void Hud::notifyUser(const std::string& message)
{
  this->notifier->pushNotifyMessage(message);
}

void Hud::setBackGround()
{}

void Hud::setEnergyWidget(OrxGui::GLGuiWidget* widget)
{
  // decopple old widget
  if (this->energyWidget != NULL)
  {
    this->energyWidget->hide();
  }

  this->energyWidget = widget;
  if (this->energyWidget != NULL)
  {
    this->energyWidget->show();
    this->energyWidget->setBackgroundTexture( "hud_energy_background.png");
    /*    this->energyWidget->frontMaterial().setDiffuseMap("hud_energy_bar.png");
        this->energyWidget->frontMaterial().setBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);*/
  }

  this->updateResolution();
}

void Hud::setShiledWidget(OrxGui::GLGuiWidget* widget)
{}

void Hud::setArmorWidget(OrxGui::GLGuiWidget* widget)
{}

void Hud::setWeaponManager(WeaponManager* weaponMan)
{
  if (this->weaponManager != NULL)
  {
    for (unsigned int i = 0; i < this->weaponManager->getSlotCount(); i++)
    {
      Weapon* weapon = this->weaponManager->getWeapon(i);
      if (weapon != NULL)
      {
        weapon->getEnergyWidget()->hide();
        this->weaponsWidgets.remove(weapon->getEnergyWidget());
      }
    }
  }

  this->weaponManager = weaponMan;

  this->updateWeaponManager();
  //  this->updateResolution();
}

void Hud::updateWeaponManager()
{
  // hide all the Widgets
  std::list<OrxGui::GLGuiWidget*>::iterator weaponWidget;
  for (weaponWidget = this->weaponsWidgets.begin(); weaponWidget != this->weaponsWidgets.end(); weaponWidget++)
  {
    (*weaponWidget)->hide();
  }
  this->weaponsWidgets.clear();

  // add all that we need again.
  if (this->weaponManager != NULL)
    for (unsigned int i = 0; i < this->weaponManager->getSlotCount(); i++)
    {
      Weapon* weapon = this->weaponManager->getWeapon(i);
      if (weapon != NULL)
      {
        //PRINTF(0)("WEAPON %s::%s in Slots\n", weapon->getClassName(), weapon->getName());
        weapon->getEnergyWidget()->show();
        weapon->getEnergyWidget()->setBackgroundColor(Color(.8,.2,.11, 0.1));
        weapon->getEnergyWidget()->setFrontColor(Color( .2,.5,.7,.6));
        //      weapon->getEnergyWidget()->frontMaterial().setTransparency(.6);
        this->weaponsWidgets.push_back(weapon->getEnergyWidget());
      }
    }
  this->updateResolution();
}

void Hud::addWeaponWidget(OrxGui::GLGuiWidget* widget)
{}

void Hud::removeWeaponWidget(OrxGui::GLGuiWidget* widget)
{}

void Hud::updateResolution()
{
  this->resX = State::getResX();
  this->resY = State::getResY();

  this->setSize2D(.2 * this->resX, this->resY);
  this->notifier->setAbsCoor2D(0.7 * this->resX, 0.3 * this->resY);
  this->notifier->setWidgetSize(0.25 * this->resX, 0.6 * this->resY);


  if (State::getPlayer() && State::getPlayer()->getPlayable() && State::getObjectManager())
  {
    printf("UPDATING RADAR\n");
    this->_radar->setCenterNode(State::getPlayer()->getPlayable());
    this->_radar->addEntityList(&State::getObjectManager()->getObjectList((OM_LIST)(State::getPlayer()->getPlayable()->getOMListNumber()+1)), Color(.4, .4, 1.0));
    this->_radar->setAbsCoor2D(0.8 * this->resX, 0.01 * this->resY);
    this->_radar->setWidgetSize(0.2 * this->resX, 0.2 * this->resY);
    this->_radar->show();
  }


  if (this->energyWidget != NULL)
  {
    this->energyWidget->setAbsCoor2D(0.0 * this->resX, 0.85 * this->resY);
    this->energyWidget->setWidgetSize(.25 * this->resX, 0.1 * this->resY);
  }


  std::list<OrxGui::GLGuiWidget*>::iterator weaponWidget;
  Vector2D pos(0.3, .9);
  for (weaponWidget = this->weaponsWidgets.begin(); weaponWidget != this->weaponsWidgets.end(); weaponWidget++, pos.x+=.2)
  {
    if (pos.x > .8)
    {
      pos.x = 0.3;
      pos.y -= .1;

    }
    (*weaponWidget)->setAbsCoor2D(pos.x*this->resX, pos.y*this->resY);
    (*weaponWidget)->setWidgetSize(.02*this->resX, .1 *this->resY);
    (*weaponWidget)->show();
    //printf("update thing %s::%s\n", (*weaponWidget)->getClassName(), (*weaponWidget)->getName());
  }
}

void Hud::draw() const
{
  //  GLGuiWidget::draw();
}


void Hud::process(const Event &event)
{
  if (event.type == EV_VIDEO_RESIZE)
    this->updateResolution();
  else if (event.type == SDLK_TAB)
  {
    /// TODO SHOW THE INPUT-LINE
  //  this->inputLine->select();
  }


}