/*------------------------------------------------------------------------------
-- This file is a part of the QLop Software
-- Copyright (C) 2015, Plasma Physics Laboratory - CNRS
--
-- 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 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-------------------------------------------------------------------------------*/
/*-- Author : Alexis Jeandet
-- Mail : alexis.jeandet@member.fsf.org
----------------------------------------------------------------------------*/
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QFileDialog>
#include <QDir>
#include "qcustomplot.h"
#include "filedownloader_old.h"
#include <omp.h>
#include <QAction>
#include <downloadhistory.h>
#include <QDateTime>
#include <QDate>
#include <filedownloader.h>
#include <themisdatadownloader.h>

Qt::GlobalColor QLopColours[]= {Qt::black,
                                Qt::red,
                                Qt::blue,
                                Qt::green,
                                Qt::darkGreen,
                                Qt::cyan,
                                Qt::darkRed,
                                Qt::gray,
                                Qt::yellow,
                                Qt::darkBlue,
                                Qt::darkCyan,
                                Qt::magenta,
                                Qt::darkMagenta,
                                Qt::darkYellow,
                                Qt::darkGray,
                                Qt::lightGray};

int QLopColoursCount=16;


MainWindow::MainWindow(int OMP_THREADS, QWidget *parent) :
  QMainWindow(parent),
  ui(new Ui::MainWindow)
{
  this->OMP_THREADS = OMP_THREADS;
  ui->setupUi(this);

  connect(this->ui->addViewerQpb,SIGNAL(clicked()),this,SLOT(addFolderView()));
  connect(&this->fileReader,SIGNAL(dataReady(QListOfDataVector)),this,SLOT(dataReady(QListOfDataVector)));
  connect(this->ui->actionIndex_Viewer,SIGNAL(triggered()),this,SLOT(showThemisIndexViewer()));
  this->ui->Plot->setXaxisTickLabelType(QCPAxis::ltDateTime);
  this->ui->Plot->setXaxisDateTimeFormat("hh:mm:ss.zzz");
  this->progressWidget = new QWidget();
  this->progressLayout = new QVBoxLayout(this->progressWidget);
  this->progressWidget->setLayout(this->progressLayout);
  this->progressWidget->setWindowModality(Qt::WindowModal);
  progressThreadIds = (int*) malloc(OMP_THREADS*sizeof(int));
  for(int i=0;i<OMP_THREADS;i++)
    {
      this->progress.append(new QProgressBar(this->progressWidget));
      this->progress.last()->setMinimum(0);
      this->progress.last()->setMaximum(100);
      connect(&this->fileReader,SIGNAL(updateProgress(int,int)),this,SLOT(updateProgress(int,int)));
      this->progressLayout->addWidget(this->progress.last());
      this->progressWidget->hide();
      this->progressThreadIds[i] = -1;
    }
  this->progressWidget->setWindowTitle("Loading File");
  this->themisIndexFileViewer = new ThemisIndexFileViewer();
  this->ui->tabWidget->addTab(this->themisIndexFileViewer,"Themis Index Viewer");
  this->downLoadHistory = FileDownloader::self()->getGUI();
  qDebug()<<FileDownloader::self()->serviceName();
  this->ui->tabWidget->addTab(new ThemisDataDownloader(),"Themis data downloader");
  this->ui->tabWidget->addTab(this->downLoadHistory,"Download History");
}

MainWindow::~MainWindow()
{
  delete ui;
}

QString MainWindow::getFilePath(const QString &name)
{
  for(int i=0;i<this->folderViews.count();i++)
    {
      if(folderViews.at(i)->isDraging(name))
        return folderViews.at(i)->currentFolder();
    }
  return "";
}


void MainWindow::itemDoubleClicked(QListWidgetItem* item)
{
  if(item)
    {
       plotFile(item->text());
    }
}

void MainWindow::plotFile(const QString &File)
{
  if(!fileReader.isRunning())
    {
      for(int i=0;i<OMP_THREADS;i++)
        {
          this->progress.at(i)->setValue(0);
        }
      this->progressWidget->show();
      fileReader.parseFile(File);
      this->ui->Plot->setTitle(File);
    }
}

void MainWindow::dataReady(QListOfDataVector data)
{
  for(int i=0;i<OMP_THREADS;i++)
    {
      progressThreadIds[i]=-1;
    }
  this->progressWidget->hide();
  this->ui->Plot->removeAllGraphs();
  for(int i=0;i<data.count();i++)
    {
      this->ui->Plot->addGraph();
      this->ui->Plot->setAdaptativeSampling(i,true);
      this->ui->Plot->setUseFastVector(i,true);
      QPen pen = this->ui->Plot->getGraphPen(i);
      pen.setColor(QLopColours[i%QLopColoursCount]);
      this->ui->Plot->setGraphPen(i,pen);
      this->ui->Plot->setGraphName(i,data.at(i).name+"("+data.at(i).unit+")");
      this->ui->Plot->setGraphData(i,data.at(i).data,false);
    }
  this->ui->Plot->rescaleAxis();
  this->ui->Plot->replot();
}


void MainWindow::updateProgress(int threadId, int percentProgress)
{
  bool updated=false;
  for(int i=0;i<OMP_THREADS;i++)
    {
      if(progressThreadIds[i]==threadId)
        {
          if(threadId<this->progress.count())
          {
              this->progress.at(i)->setValue(percentProgress);
              updated=true;
            }
        }
    }
  if(Q_UNLIKELY(updated==false))
    {
      for(int i=0;i<OMP_THREADS;i++)
        {
          if(progressThreadIds[i]==-1)
            {
              progressThreadIds[i] = threadId;
              updateProgress(threadId,percentProgress);
              return;
            }
        }
    }
}

void MainWindow::addFolderView()
{
  this->folderViews.append(new FolderView(this));
  this->ui->folderViews->addDockWidget(Qt::TopDockWidgetArea,this->folderViews.last());
  this->folderViews.last()->setWindowTitle( QString("Folder View %1").arg(this->folderViews.length()));
  this->folderViews.last()->setAllowedAreas(Qt::AllDockWidgetAreas);
  connect(this->folderViews.last(),SIGNAL(itemActivated(QString)),this,SLOT(plotFile(QString)));

}

void MainWindow::askGlobalRescan()
{
  for(int i=0;i<this->folderViews.count();i++)
    {
      this->folderViews.at(i)->refreshFolder();
  }
}

void MainWindow::showThemisIndexViewer()
{
    this->themisIndexFileViewer->show();
}

void MainWindow::changeEvent(QEvent *e)
{
  QMainWindow::changeEvent(e);
  switch (e->type()) {
    case QEvent::LanguageChange:
      ui->retranslateUi(this);
      break;
    default:
      break;
    }
}