#include "mainscreen.h"
#include "ui_mainscreen.h"


MainScreen::MainScreen(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainScreen)
{
  ui->setupUi(this);
  //this->setFixedSize(this->size()); //main not resizeable

  ui->labelMadeBy->setOpenExternalLinks(true);

  //Login Tab
  iconPix.load(":/icons/iconX.png");
  ui->pswdLineEdit->setEchoMode((QLineEdit::Password));
  ui->labelUsrInputStatus->setVisible(false);
  ui->labelPswInputStatus->setVisible(false);
  ui->labelUsrInputStatus->setPixmap(iconPix);
  ui->labelPswInputStatus->setPixmap(iconPix);

  //StatusBar
  ui->statusBar->setStyleSheet("QStatusBar::item { border: 0px solid black };");
  ui->statusBar->setFixedHeight(STATUS_ICON_HEIGH);
  ui->statusBar->showMessage(tr("Ready"));

  //GPA Tab
  ui->avgLCD->setPalette(QPalette(QPalette::WindowText,Qt::blue));

  //Pointer allocating
  qDebug() << Q_FUNC_INFO << "Allocating pointers";
  this->userLoginSetting = new user("","");
  this->courseTableMgr = new coursesTableManager(ui->coursesTable,userLoginSetting);
  this->loginHandel = new loginHandler(userLoginSetting,ui->statusBar,ui->loginButton);
  this->calendar = new CalendarManager(ui->calendarGridLayoutMain);
  this->data = new SaveData();

  //check login File
  if (data->isSaved())
    {
      qDebug() << Q_FUNC_INFO << "Loading data from file";
      ui->usrnmLineEdit->setText(data->getUsername());
      ui->pswdLineEdit->setText(data->getPassword());
      ui->keepLogin->setChecked(true);
    }

  //language
  qDebug() << Q_FUNC_INFO << "Checking locale";
  checkLocale();
  qDebug() << Q_FUNC_INFO << "Ready.";

}
MainScreen::~MainScreen()
{
  delete calendar;
  delete courseTableMgr;
  delete userLoginSetting;
  delete loginHandel;
  delete data;
  delete ui;
}

//EVENTS ON LOGIN TAB
void MainScreen::on_loginButton_clicked()
{
  qDebug() << Q_FUNC_INFO <<  "in: " << ui->tabWidget->currentWidget()->objectName();
  if ((ui->usrnmLineEdit->text().isEmpty()) || (ui->pswdLineEdit->text().isEmpty()))
    {
      if (ui->usrnmLineEdit->text().isEmpty())
        {
          ui->labelUsrInputStatus->setVisible(true);
          qDebug() << Q_FUNC_INFO << "username input is empty";
        }
      else
        ui->labelUsrInputStatus->setVisible(false);
      if (ui->pswdLineEdit->text().isEmpty())
        {
          ui->labelPswInputStatus->setVisible(true);
          qDebug() << Q_FUNC_INFO << "password input is empty";
        }
      else
        ui->labelPswInputStatus->setVisible(false);
      return;
    }
  else
    {
      ui->labelUsrInputStatus->setVisible(false);
      ui->labelPswInputStatus->setVisible(false);
    }
  qDebug() << Q_FUNC_INFO <<  "login session start";
  QApplication::setOverrideCursor(Qt::WaitCursor);
  if (this->loginHandel->login(ui->usrnmLineEdit->text(),ui->pswdLineEdit->text()) == true)
    {
      qDebug() << Q_FUNC_INFO <<  "login session end with true";
      ui->pswdLineEdit->setDisabled(true);
      ui->usrnmLineEdit->setDisabled(true);
      if (ui->keepLogin->isChecked())
        {
          qDebug() << Q_FUNC_INFO <<  "saving data";
          data->setUsername(ui->usrnmLineEdit->text());
          data->setPassword(ui->pswdLineEdit->text());
        }
    }
  else
    {
      qDebug() << Q_FUNC_INFO <<  "login session end with false";
      ui->pswdLineEdit->setDisabled(false);
      ui->usrnmLineEdit->setDisabled(false);

    }
  QApplication::restoreOverrideCursor();
}
void MainScreen::on_keepLogin_clicked()
{
  qDebug() << Q_FUNC_INFO <<  "in: " << ui->tabWidget->currentWidget()->objectName();
  if (ui->keepLogin->isChecked())
    {
      qDebug() << Q_FUNC_INFO <<  "saving data";
      data->setUsername(ui->usrnmLineEdit->text());
      data->setPassword(ui->pswdLineEdit->text());
    }
  else
    data->reset();
}
void MainScreen::on_usrnmLineEdit_editingFinished()
{
  qDebug() << Q_FUNC_INFO <<  "in: " << ui->tabWidget->currentWidget()->objectName();
  ui->usrnmLineEdit->setText(ui->usrnmLineEdit->text().toLower());
}

//EVENTS ON GPA TAB
void MainScreen::on_ratesButton_clicked()
{
  qDebug() << Q_FUNC_INFO <<  "in: " << ui->tabWidget->currentWidget()->objectName();
  if (!checkIfValidDates())
    {
      qWarning() << Q_FUNC_INFO << "Invalid dates! return";
      QMessageBox::critical(this,tr("Error"),tr("Invalid Dates.\nMake Sure everything is correct and try again"));
      return;
    }
  QString pageString;
  int status = 0;
  QApplication::setOverrideCursor(Qt::WaitCursor);
  if (loginHandel->isLoggedInFlag())
    {
      if ((status = loginHandel->makeGradeRequest(ui->spinBoxCoursesFromYear->value(),
                                                  ui->spinBoxCoursesToYear->value(),ui->spinBoxCoursesFromSemester->value(),
                                                  ui->spinBoxCoursesToSemester->value())) == jceLogin::JCE_PAGE_PASSED)
        {
          qDebug() << Q_FUNC_INFO <<  "grade page is ready";
          pageString = loginHandel->getCurrentPageContect();
          courseTableMgr->setCoursesList(pageString);
          courseTableMgr->insertJceCoursesIntoTable();
        }
      else if (status == jceLogin::JCE_NOT_CONNECTED)
        {
          qWarning() << Q_FUNC_INFO << "not connected";
          QApplication::restoreOverrideCursor();
          QMessageBox::critical(this,tr("Error"),tr("Not Connected"));
        }
      else
        {
          qCritical() << Q_FUNC_INFO << "grade get ended with" << status;
        }
    }
  QApplication::restoreOverrideCursor();
}
bool MainScreen::checkIfValidDates()
{
  bool flag = false;
  if (ui->spinBoxCoursesFromYear->value() < ui->spinBoxCoursesToYear->value())
    {
      //doesnt matter what is the semester, its valid!
      flag = true;
    }
  else if ((ui->spinBoxCoursesFromYear->value() == ui->spinBoxCoursesToYear->value()))
    {
      //semester from must be equal or less than to semester
      if (ui->spinBoxCoursesFromSemester->value() <= ui->spinBoxCoursesToSemester->value())
        flag = true;
    }
  return flag;
}
void MainScreen::on_checkBoxCoursesInfluence_toggled(bool checked)
{
  qDebug() << Q_FUNC_INFO <<  "only main courses toggeled" << checked;
  this->userLoginSetting->setInfluenceCourseOnly(checked);
  this->courseTableMgr->influnceCourseChanged(checked);
}
void MainScreen::on_spinBoxCoursesFromYear_valueChanged(int arg1)
{
  ui->spinBoxCoursesFromYear->setValue(arg1);
}
void MainScreen::on_spinBoxCoursesToYear_valueChanged(int arg1)
{
  ui->spinBoxCoursesToYear->setValue(arg1);

}
void MainScreen::on_spinBoxCoursesFromSemester_valueChanged(int arg1)
{
  ui->spinBoxCoursesFromSemester->setValue(arg1%4);
}
void MainScreen::on_spinBoxCoursesToSemester_valueChanged(int arg1)
{
  ui->spinBoxCoursesToSemester->setValue(arg1%4);
}
void MainScreen::on_coursesTable_itemChanged(QTableWidgetItem *item)
{
  if (this->courseTableMgr->changes(item->text(),item->row(),item->column()))
    ui->avgLCD->display(courseTableMgr->getAvg());
  else
    {
      qWarning() << Q_FUNC_INFO << "missmatch data";
      QMessageBox::critical(this,tr("Error"),tr("Missmatching data"));
    }
}
void MainScreen::on_clearTableButton_clicked()
{
  qDebug() << Q_FUNC_INFO <<  "in: " << ui->tabWidget->currentWidget()->objectName();
  courseTableMgr->clearTable();
  ui->avgLCD->display(courseTableMgr->getAvg());
}
//EVENTS ON CALENDAR TAB
void MainScreen::on_getCalendarBtn_clicked()
{
  qDebug() << Q_FUNC_INFO <<  "in: " << ui->tabWidget->currentWidget()->objectName();
  int status = 0;
  QApplication::setOverrideCursor(Qt::WaitCursor);
  if (loginHandel->isLoggedInFlag())
    {
      if ((status = loginHandel->makeCalendarRequest(ui->spinBoxYear->value(),ui->spinBoxSemester->value())) == jceLogin::JCE_PAGE_PASSED)
        {
          //Use it for debug. add plain text and change the object name to 'plainTextEdit' so you will get the html request
          //ui->plainTextEdit->setPlainText(loginHandel->getCurrentPageContect());
          calendar->resetTable();
          calendar->setCalendar(loginHandel->getCurrentPageContect());
          qDebug() << Q_FUNC_INFO <<  "calendar is loaded";
        }

      else if (status == jceLogin::JCE_NOT_CONNECTED)
        {
          qWarning() << Q_FUNC_INFO <<  "not connected";
          QApplication::restoreOverrideCursor();
          QMessageBox::critical(this,tr("Error"),tr("Not Connected"));
        }
      else
        qCritical() << Q_FUNC_INFO << "calendar get ended with" << status;
    }
  QApplication::restoreOverrideCursor();
}
void MainScreen::on_exportToCVSBtn_clicked()
{
  qDebug() << Q_FUNC_INFO <<  "in: " << ui->tabWidget->currentWidget()->objectName();
  if (loginHandel->isLoggedInFlag())
    {
      this->calendar->exportCalendarCSV();

    }
}
//EVENTS ON MENU BAR
void MainScreen::on_actionCredits_triggered()
{
  qDebug() << Q_FUNC_INFO;
  QMessageBox::about(this, "About",
                     "<a href='http://liranbg.github.io/JceManager/'>Jce Manager</a> v1.0.0<br><br>"
                     +tr("License:")+
                     "<br>GNU LESSER GENERAL PUBLIC LICENSE V2.1<br>"
                     +"<br>"+
                     "<a href='https://github.com/liranbg/JceManager'>JceManager Repository</a>"+
                     "<br><br>"
                     +tr("Powered By: ")+
                     "<a href='https://github.com/liranbg/jceConnection'> Jce Connection</a><br><br>"
                     +tr("Developed By")+
                     ":<ul>"+
                     "<li><a href='mailto:liranbg@gmail.com'>"+tr("Liran")+"</a></li>"+
                     "<li><a href='mailto:sagidayan@gmail.com'>"+tr("Sagi")+"</a></li></ul>"
                     );
}
void MainScreen::on_actionExit_triggered()
{
  qDebug() << Q_FUNC_INFO;
  exit(0);
}
void MainScreen::on_actionHow_To_triggered()
{
  qDebug() << Q_FUNC_INFO;
  QMessageBox::information(this,"How To",
                           "<b>"
                           +tr("Help Guide")+
                           "</b><ul>"
                           +tr("<br><li>Login: <ul><li>Type your username and password and click Login.</li><li>Once you are connected, you will see a green ball in the right buttom panel.</li></ul></li>")
                           +tr("<br><li>Getting GPA sheet<ul><li>Click on GPA Tab</li><li> Select your dates and click on Add</li></ul></li>")
                           +tr("<br><li>Average Changing<ul><li>Change one of your grade and see the average in the buttom panel changing.</li></ul></li>")
                           +tr("<br><li>Getting Calendar<ul><li>Click on Calendar Tab</li><li> Select your dates and click on Get Calendar</li></ul></li>")
                           +tr("<br><li>For exporting your calendar to a .CSV file:<ul><li>Do previous step and continue to next step</li><li> Click on Export to CSV</li><li>Select your dates and click OK</li><li>Once you're Done, go on your calendar and import your csv file</li></li>")+
                           "<br><br>"
                           +tr("<b>For more information, please visit us at: <a href='http://liranbg.github.io/JceManager/'>Jce Manager site</a></b>"));
}
void MainScreen::on_actionHebrew_triggered()
{
  qDebug() << Q_FUNC_INFO;
  if (ui->actionEnglish->isChecked() || ui->actionOS_Default->isChecked())
    {
      ui->actionEnglish->setChecked(false);
      ui->actionOS_Default->setChecked(false);
      qDebug() << Q_FUNC_INFO << "Changed Language to hebrew";
      data->setLocal("he");
      QMessageBox::information(this,tr("Settings"),tr("Your settings will take effect next time you start the program"),QMessageBox::Ok);
    }
  else
    ui->actionHebrew->setChecked(true);
}
void MainScreen::on_actionEnglish_triggered()
{
  qDebug() << Q_FUNC_INFO;
  if (ui->actionHebrew->isChecked() || ui->actionOS_Default->isChecked())
    {
      ui->actionHebrew->setChecked(false);
      ui->actionOS_Default->setChecked(false);
      qDebug() << Q_FUNC_INFO << "Changed Language to English";
      data->setLocal("en");
      QMessageBox::information(this,"Settings",tr("Your settings will take effect next time you start the program"),QMessageBox::Ok);
    }
  else
    ui->actionEnglish->setChecked(true);
}
void MainScreen::on_actionOS_Default_triggered()
{
  qDebug() << Q_FUNC_INFO;
  if (ui->actionHebrew->isChecked() || ui->actionEnglish->isChecked())
    {
      ui->actionHebrew->setChecked(false);
      ui->actionEnglish->setChecked(false);
      qDebug() << Q_FUNC_INFO << "Changed Language to OS Default";
      data->setLocal("default");
      QMessageBox::information(this,tr("Settings"),tr("Your settings will take effect next time you start the program"),QMessageBox::Ok);
    }
  else
    ui->actionOS_Default->setChecked(true);
}
void MainScreen::checkLocale()
{
  if(data->getLocal() == "en")
    {
      ui->actionHebrew->setChecked(false);
      ui->actionOS_Default->setChecked(false);
      ui->actionEnglish->setChecked(true);
    }else if(data->getLocal() == "he"){
      ui->actionHebrew->setChecked(true);
      ui->actionOS_Default->setChecked(false);
      ui->actionEnglish->setChecked(false);
    }else{
      ui->actionHebrew->setChecked(false);
      ui->actionOS_Default->setChecked(true);
      ui->actionEnglish->setChecked(false);
    }
}

void MainScreen::on_labelMadeBy_linkActivated(const QString &link)
{
  qDebug() << Q_FUNC_INFO << "link: " << link;


}