//===========================================
//  Lumina-DE source code
//  Copyright (c) 2012-2015, Ken Moore
//  Available under the 3-clause BSD license
//  See the LICENSE file for full details
//===========================================
#include "LDeskBar.h"
#include "../../LSession.h"

LDeskBarPlugin::LDeskBarPlugin(QWidget *parent, QString id, bool horizontal) : LPPlugin(parent, id, horizontal){
  this->layout()->setContentsMargins(0,0,0,0);
  this->setStyleSheet( "QToolButton::menu-indicator{ image: none; } QToolButton{ padding: 0px; }");
  //Find the path to the desktop folder
  if(QFile::exists(QDir::homePath()+"/Desktop")){ desktopPath = QDir::homePath()+"/Desktop"; }
  else if(QFile::exists(QDir::homePath()+"/desktop")){ desktopPath = QDir::homePath()+"/desktop"; }
  else{ desktopPath=""; }
  //Make sure the favorites directory exists
  if(!QFile::exists(QDir::homePath()+"/.lumina/favorites") ){
    QDir dir;
    dir.mkpath(QDir::homePath()+"/.lumina/favorites");
  }
  //Setup the filter lists for the different types of files
  /*audioFilter <<"*.ogg"<<"*.mp3"<<"*.wav"<<"*.aif"<<"*.iff"<<"*.m3u"<<"*.m4a"<<"*.mid"<<"*.mpa"<<"*.ra"<<"*.wma";
  videoFilter <<"*.3g2"<<"*.3gp"<<"*.asf"<<"*.asx"<<"*.avi"<<"*.flv"<<"*.m4v"<<"*.mov"<<"*.mp4"<<"*.mpg"<<"*.rm"<<"*.srt"<<"*.swf"<<"*.vob"<<"*.wmv";
  pictureFilter <<"*.bmp"<<"*.dds"<<"*.gif"<<"*.jpg"<<"*.png"<<"*.psd"<<"*.thm"<<"*.tif"<<"*.tiff"<<"*.ai"<<"*.eps"<<"*.ps"<<"*.svg"<<"*.ico";
  docsFilter << "*.txt"<<"*.rtf"<<"*.doc"<<"*.docx"<<"*.odf"<<"*.pdf";*/
  //initialize the desktop bar items
  initializeDesktop();
  //setup the directory watcher
  watcher = new QFileSystemWatcher(this);
  if(!desktopPath.isEmpty()){ 
    watcher->addPath(desktopPath);
    watcher->addPath(QDir::homePath()+"/.lumina/favorites");
  }
  connect(watcher, SIGNAL(directoryChanged(QString)), this, SLOT(desktopChanged()) );
  QTimer::singleShot(1,this, SLOT(desktopChanged()) ); //make sure to load it the first time
  QTimer::singleShot(0,this, SLOT(OrientationChange()) ); //adjust sizes/layout
  connect(QApplication::instance(), SIGNAL(DesktopFilesChanged()), this, SLOT(desktopChanged()) );
}

LDeskBarPlugin::~LDeskBarPlugin(){
  if(!desktopPath.isEmpty()){
    watcher->removePath(desktopPath);
    disconnect(watcher);
  }
  delete watcher;
  
}

// =======================
//   PRIVATE FUNCTIONS
// =======================
void LDeskBarPlugin::initializeDesktop(){
  //Applications on the desktop
  appB = new QToolButton(this);
    appB->setIcon( LXDG::findIcon("favorites", "") );
    appB->setToolButtonStyle(Qt::ToolButtonIconOnly);
    appB->setToolTip(tr("Favorite Applications"));
    appB->setAutoRaise(true);
    appB->setPopupMode(QToolButton::InstantPopup);
  appM = new QMenu(this);
    appB->setMenu(appM);
    this->layout()->addWidget(appB);
    connect(appM,SIGNAL(triggered(QAction*)),this,SLOT(ActionTriggered(QAction*)) );
  //Directories on the desktop
  dirB = new QToolButton(this);
    dirB->setIcon( LXDG::findIcon("folder", "") );
    dirB->setToolButtonStyle(Qt::ToolButtonIconOnly);
    dirB->setToolTip(tr("Favorite Folders"));
    dirB->setAutoRaise(true);
    dirB->setPopupMode(QToolButton::InstantPopup);
  dirM = new QMenu(this);
    dirB->setMenu(dirM);
    this->layout()->addWidget(dirB);
    connect(dirM,SIGNAL(triggered(QAction*)),this,SLOT(ActionTriggered(QAction*)) );
  //Audio Files on the desktop
  audioM = new QMenu(tr("Audio"), this);
    connect(audioM,SIGNAL(triggered(QAction*)),this,SLOT(ActionTriggered(QAction*)) );
    audioM->setIcon( LXDG::findIcon("audio-x-generic","") );
  //Video Files on the desktop
  videoM = new QMenu(tr("Video"), this);
    connect(videoM,SIGNAL(triggered(QAction*)),this,SLOT(ActionTriggered(QAction*)) );
    videoM->setIcon( LXDG::findIcon("video-x-generic","") );
  //Picture Files on the desktop
  pictureM = new QMenu(tr("Pictures"), this);
    connect(pictureM,SIGNAL(triggered(QAction*)),this,SLOT(ActionTriggered(QAction*)) );
    pictureM->setIcon( LXDG::findIcon("image-x-generic","") );
  //Other Files on the desktop
  otherM = new QMenu(tr("Other Files"), this);
    connect(otherM,SIGNAL(triggered(QAction*)),this,SLOT(ActionTriggered(QAction*)) );
    otherM->setIcon( LXDG::findIcon("unknown","") );
  docM = new QMenu(tr("Documents"), this);
    connect(docM,SIGNAL(triggered(QAction*)), this,SLOT(ActionTriggered(QAction*)) );
    docM->setIcon( LXDG::findIcon("x-office-document","") );
  //All Files Button
  fileB = new QToolButton(this);
    fileB->setIcon( LXDG::findIcon("document-multiple", "") );
    fileB->setToolButtonStyle(Qt::ToolButtonIconOnly);
    fileB->setToolTip(tr("Favorite Files") );
    fileB->setAutoRaise(true);
    fileB->setPopupMode(QToolButton::InstantPopup);
  fileM = new QMenu(this);
    fileB->setMenu(fileM);
    this->layout()->addWidget(fileB);
}

QAction* LDeskBarPlugin::newAction(QString filepath, QString name, QString iconpath){
  return newAction(filepath, name, QIcon(iconpath));
}

QAction* LDeskBarPlugin::newAction(QString filepath, QString name, QIcon icon){
  QAction *act = new QAction(icon, name, this);
    act->setWhatsThis(filepath);
  return act;	 
}

/*void LDeskBarPlugin::updateMenu(QMenu* menu, QFileInfoList files, bool trim){
  menu->clear();
  //re-create the menu (since it is hidden from view)
  QStringList filevals;
  for(int i=0; i<files.length(); i++){
    qDebug() << "New Menu Item:" << files[i].fileName();
    if(trim){ totals.removeAll(files[i]); }
    filevals << files[i].fileName()+"::::"+files[i].canonicalFilePath();
    //menu->addAction( newAction( files[i].canonicalFilePath(), files[i].fileName(), "") );
  }
  //Now sort the list by file name
  filevals.sort();
  for(int i=0; i<filevals.length(); i++){
    menu->addAction( newAction( filevals[i].section("::::",1,1), filevals[i].section("::::",0,0), "") );
  }
}*/

// =======================
//     PRIVATE SLOTS
// =======================
void LDeskBarPlugin::ActionTriggered(QAction* act){
 //Open up the file with the appropriate application
 QString cmd = "lumina-open \""+act->whatsThis()+"\"";
 qDebug() << "Open File:" << cmd;
 LSession::LaunchApplication(cmd);
}

void LDeskBarPlugin::desktopChanged(){
  QStringList newfavs = LUtils::listFavorites();
  if(lastHomeUpdate.isNull() || (QFileInfo(QDir::homePath()+"/Desktop").lastModified() > lastHomeUpdate) || newfavs!=favs ){
  favs = newfavs;
  homefiles = LSession::handle()->DesktopFiles();
  lastHomeUpdate = QDateTime::currentDateTime();
  QStringList favitems = favs;
  //Remember for format for favorites: <name>::::[app/dir/<mimetype>]::::<full path>
    for(int i=0; i<homefiles.length(); i++){
      QString type;
      if(homefiles[i].isDir()){ type="dir"; }
      else if(homefiles[i].fileName().endsWith(".desktop")){ type="app"; }
      else{ type=LXDG::findAppMimeForFile(homefiles[i].fileName()); }
      favitems << homefiles[i].fileName()+"::::"+type+"::::"+homefiles[i].absoluteFilePath();
      //qDebug() << "Desktop Item:" << favitems.last();
    }
  
  favitems.sort(); //sort them alphabetically
  //Now add the items to the lists
  appM->clear();
  dirM->clear();
  audioM->clear();
  videoM->clear();
  pictureM->clear();
  docM->clear();
  otherM->clear();
  for(int i=0; i<favitems.length(); i++){
    QString type = favitems[i].section("::::",1,1);
    QString name = favitems[i].section("::::",0,0);
    QString path = favitems[i].section("::::",2,50);
    if(type=="app"){
      //Add it to appM
      bool ok = false;
      XDGDesktop df = LXDG::loadDesktopFile(path, ok);
      if(ok){
        if( LXDG::checkValidity(df) && !df.isHidden ){ 
	  appM->addAction( newAction(df.filePath, df.name, LXDG::findIcon(df.icon, ":/images/default-application.png")) );
	}
      }
    }else if(type=="dir"){
      //Add it to dirM
      dirM->addAction( newAction(path, name, LXDG::findIcon("folder","")) );
    }else if(type.startsWith("audio/")){
      //Add it to audioM
      audioM->addAction( newAction(path, name, LXDG::findMimeIcon(type)) );
    }else if(type.startsWith("video/")){
      //Add it to videoM
      videoM->addAction( newAction(path, name, LXDG::findMimeIcon(type)) );
    }else if(type.startsWith("image/")){
      //Add it to pictureM
      if(LUtils::imageExtensions().contains(path.section("/",-1).section(".",-1).toLower()) ){
	pictureM->addAction( newAction(path, name, QIcon(path)) );
      }else{
        pictureM->addAction( newAction(path, name, LXDG::findMimeIcon(type)) );
      }
    }else if(type.startsWith("text/")){
      //Add it to docM
      docM->addAction( newAction(path, name, LXDG::findMimeIcon(type)) );
    }else{
      //Add it to otherM
      otherM->addAction( newAction(path, name, LXDG::findMimeIcon(type)) );
    }

  }

    //Now update the file menu as appropriate
    fileM->clear();
    if(!audioM->isEmpty()){ fileM->addMenu(audioM); }
    if(!docM->isEmpty()){ fileM->addMenu(docM); }
    if(!pictureM->isEmpty()){ fileM->addMenu(pictureM); }
    if(!videoM->isEmpty()){ fileM->addMenu(videoM); }
    if(!otherM->isEmpty()){ fileM->addMenu(otherM); }
    //Check for a single submenu, and skip the main if need be
    if(fileM->actions().length()==1){
      if(!audioM->isEmpty()){ fileB->setMenu(audioM); }
      else if(!pictureM->isEmpty()){ fileB->setMenu(pictureM); }
      else if(!videoM->isEmpty()){ fileB->setMenu(videoM); }
      else if(!docM->isEmpty()){ fileB->setMenu(docM); }
      else if(!otherM->isEmpty()){ fileB->setMenu(otherM); }
    }else{
      fileB->setMenu(fileM);	    
    }
 } //end of check for if updates are needed

  //Setup the visibility of the buttons
  appB->setVisible( !appM->isEmpty() );
  dirB->setVisible( !dirM->isEmpty() );
  fileB->setVisible( !fileM->isEmpty() );
}