#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

    //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->setMaximumSize(this->geometry().width(),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";
    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);

    }
}
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;
    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";
            QMessageBox::critical(this,tr("Error"),tr("Not Connected"));
        }
        else
        {
            qCritical() << Q_FUNC_INFO << "grade get ended with" << status;
        }
    }
}
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)
{
    qDebug() << Q_FUNC_INFO <<  "item at row:" << item->row() << " colum:" << item->column() << " text: " << item->text();
    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;
    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";
            QMessageBox::critical(this,tr("Error"),tr("Not Connected"));
        }
        else
            qCritical() << Q_FUNC_INFO << "calendar get ended with" << status;
    }
}
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",
                       tr("Jce Manager")+
                       "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("DevBy")+
                       ":<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("Guide")+
                             "</b><ul><br><li>"
                             +tr("login")+
                             "</li><br><li>"
                             +tr("get gpa")+
                             "</li><br><li>"
                             +tr("changing gpa")+
                             "</li><br><li>"
                             +tr("getting calendar")+
                             "</li><br><li>"
                             +tr("exporting")+
                             "</li></ul>");
}
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);
    }
}