#include "PrecompiledHeader.h"

#include "GameApp.h"
#include "GuiBackground.h"
#include "GameObserver.h"
#include "Rules.h"
#include "DeckDataWrapper.h"
#include "WFilter.h"
#include "StyleManager.h"
#include "../../../JGE/src/tinyxml/tinyxml.h"

void StyleManager::killRules(){
    activeStyle = "";
    vector<WStyleRule*>::iterator i;
    for(i=rules.begin();i!=rules.end();i++)
        SAFE_DELETE(*i);
    rules.clear();

    map<string,WStyle*>::iterator mi;
    for(mi=styles.begin();mi!=styles.end();mi++){
        SAFE_DELETE(mi->second);
    }
    styles.clear();
}

StyleManager::StyleManager(){
    loadRules();
}

StyleManager::~StyleManager(){
    killRules();
}


string WStyle::stylized(string filename){
  if(mapping.find(filename) != mapping.end())
    return mapping[filename];
  return filename;
}
void StyleManager::loadRules(){
  killRules();
  //TODO Placeholder until XML format available.
  string filename = RESPATH"/" + resources.graphicsFile("style.txt");
  TiXmlDocument xmlfile(filename.c_str());
  if(!xmlfile.LoadFile())
    return;
  TiXmlHandle hDoc(&xmlfile);
  TiXmlElement * pRule;
  for(pRule = hDoc.FirstChildElement().Element();pRule!=NULL;pRule=pRule->NextSiblingElement()){
  //root should be "pack"
  string tag = pRule->Value();
  std::transform(tag.begin(),tag.end(),tag.begin(),::tolower);
  if(tag == "activebg"){
      //After validating, handle actual loading.
      TiXmlElement * pSlot;
      const char * holder = NULL;
      holder = pRule->Attribute("source");
      if(holder) playerSrc = atoi(holder); else playerSrc = -1;

      for (pSlot=pRule->FirstChildElement();pSlot!=NULL;pSlot=pSlot->NextSiblingElement()){
        //Load slot.
        tag = pSlot->Value();
        std::transform(tag.begin(),tag.end(),tag.begin(),::tolower);
        if(tag != "case") continue;

        WStyleRule * r = NEW WStyleRule(); 
        rules.push_back(r);

        holder = pSlot->Attribute("rule");
        if(holder) r->filter = holder;
        r->style = pSlot->GetText();
      }
  } else if(tag == "style"){
      TiXmlElement * pSlot;
      const char * holder = NULL;
      holder = pRule->Attribute("name");
      if(!holder) continue;
      string sname = holder;
      WStyle * s = NEW WStyle();
      
      for (pSlot=pRule->FirstChildElement();pSlot!=NULL;pSlot=pSlot->NextSiblingElement()){
          
        tag = pSlot->Value();
        std::transform(tag.begin(),tag.end(),tag.begin(),::tolower);
        if(tag.size() && pSlot->GetText())
          s->mapping[tag] = pSlot->GetText();
      }
      if(styles[sname]) SAFE_DELETE(styles[sname]);
      styles[sname] = s;

      
  }
  }
  
  determineActive(NULL,NULL);
  return;
}

WStyle * StyleManager::get() {
  if(styles.find(activeStyle) != styles.end())
    return styles[activeStyle];
  return NULL;
};
void StyleManager::determineActive(MTGDeck * p1, MTGDeck * p2)
{
  string check = options[Options::GUI_STYLE].str;
  if(check.size() && styles.find(check) != styles.end()){
    string prior = activeStyle;
    activeStyle = check;    
    if(prior != activeStyle)
      resources.Refresh();
    return;
  }
  topRule = -1; topSize = 0;
          
  MTGDeck * tempDeck = NEW MTGDeck(GameApp::collection);
  if(p1 && playerSrc != 2) tempDeck->add(p1);
  if(p2 && playerSrc != 1) tempDeck->add(p2);
  WCFilterFactory * ff = WCFilterFactory::GetInstance();

  if(tempDeck){
      DeckDataWrapper * ddw = NEW DeckDataWrapper(tempDeck);
      for(int r=0;r<(int)rules.size();r++){
          ddw->clearFilters();
          ddw->addFilter(ff->Construct(rules[r]->filter));
          ddw->validate();
          int ct = ddw->getCount(WSrcDeck::FILTERED_COPIES);
          if(ct > topSize) {
              topRule = r;
              topSize = ct;
          }
      }
      delete tempDeck;
      delete ddw;
  }
  
  string prior = activeStyle;
  activeStyle = "";
  if(topRule >= 0){
      map<string,WStyle*>::iterator mi = styles.find(rules[topRule]->style);
      if(mi != styles.end())
        activeStyle = mi->first;
  }
  if(prior != activeStyle)
    resources.Refresh();
     
}