#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
    ui->pswdLineEdit->setEchoMode((QLineEdit::Password));

    //Status Bar
    ui->statusBar->setStyleSheet("QStatusBar::item { border: 0px solid black };");
    ButtomStatusLabel = new QLabel(this);
    statusLabel = new QLabel(this);
    ui->statusBar->setMaximumSize(this->geometry().width(),StatusIconHeight);
    ui->statusBar->addPermanentWidget(ButtomStatusLabel,0);
    ui->statusBar->addPermanentWidget(statusLabel,1);
    setLabelConnectionStatus(jceLogin::jceStatus::JCE_NOT_CONNECTED);

    //Course and Setting Tab
    ui->CoursesTab->setDisabled(true);
    ui->SettingsTab->setDisabled(true);
    ui->avgLCD->setPalette(QPalette(QPalette::WindowText,Qt::blue));



    //Pointer allocating
    this->jceLog = NULL;
    this->userLoginSetting = new user("","");
    this->courseTableMgr = new coursesTableManager(ui->coursesTable,userLoginSetting);
    this->loginHandel = new loginHandler();

    updateDates();

    //check login File
    SaveData::init();
    if (SaveData::isSaved())
    {
        ui->usrnmLineEdit->setText(SaveData::getUsername());
        ui->pswdLineEdit->setText(SaveData::getPassword());
        ui->keepLogin->setChecked(true);
    }
}

MainScreen::~MainScreen()
{
    delete userLoginSetting;
    delete jceLog;
    delete loginHandel;
    delete ui;
}
void MainScreen::on_ratesButton_clicked()
{
    QTextEdit phrase;
    std::string pageString;
    if (this->jceLog != NULL)
    {
        if (jceLog->getGrades())
        {
            phrase.setText(QString::fromStdString(jceLog->getPage()));
            pageString = phrase.toPlainText().toStdString();
            courseTableMgr->setCoursesList(pageString);
            courseTableMgr->insertJceCoursesIntoTable();
        }
    }

}

void MainScreen::on_spinBoxFromYear_editingFinished()
{
    if (ui->spinBoxFromYear->value() > ui->spinBoxToYear->value())
    {
        ui->spinBoxFromYear->setValue(ui->spinBoxToYear->value());
        ui->spinBoxFromYear->setFocus();
        updateDates();
    }
    else
        updateDates();
}
void MainScreen::on_spinBoxToYear_editingFinished()
{
    if (ui->spinBoxFromYear->value() > ui->spinBoxToYear->value())
    {
        ui->spinBoxToYear->setValue(ui->spinBoxFromYear->value());
        ui->spinBoxToYear->setFocus();
        updateDates();
    }
    else
        updateDates();
}
void MainScreen::on_spinBoxFromSem_editingFinished()
{
    if (ui->spinBoxFromYear->value() == ui->spinBoxToYear->value())
    {
        if (ui->spinBoxFromSem->value() > ui->spinBoxToSemester->value())
        {
            ui->spinBoxFromSem->setValue(ui->spinBoxToSemester->value());
            ui->spinBoxFromSem->setFocus();
        }
    }
    updateDates();
}
void MainScreen::on_spinBoxToSemester_editingFinished()
{
    if (ui->spinBoxFromYear->value() == ui->spinBoxToYear->value())
    {
        if (ui->spinBoxFromSem->value() > ui->spinBoxToSemester->value())
        {
            ui->spinBoxToSemester->setValue(ui->spinBoxFromSem->value());
            ui->spinBoxToSemester->setFocus();
        }
    }
    updateDates();
}

void MainScreen::on_coursesTable_itemChanged(QTableWidgetItem *item)
{
    if (this->courseTableMgr->changes(item->text(),item->row(),item->column()))
        ui->avgLCD->display(courseTableMgr->getAvg());
    else
        QMessageBox::critical(this,"Error","Missmatching data");
}

void MainScreen::on_loginButton_clicked()
{
    if (this->jceLog == NULL)
        uiSetConnectMode();
    else
    {
        if (jceLog->isLoginFlag() == true)
            uiSetDisconnectMode();
        else
            uiSetConnectMode();
    }

}

void MainScreen::on_checkBox_toggled(bool checked)
{
    this->userLoginSetting->setInfluenceCourseOnly(checked);
    this->courseTableMgr->influnceCourseChanged(checked);
}
void MainScreen::on_usrnmLineEdit_editingFinished()
{
    ui->usrnmLineEdit->setText(ui->usrnmLineEdit->text().toLower());
}
void MainScreen::updateDates()
{
    std::string fy,ty,fs,ts;
    fy = std::to_string(ui->spinBoxFromYear->value());
    ty = std::to_string(ui->spinBoxToYear->value());
    fs = std::to_string(ui->spinBoxFromSem->value());
    ts = std::to_string(ui->spinBoxToSemester->value());
    userLoginSetting->setDate(fy,fs,ty,ts);
}

void MainScreen::uiSetDisconnectMode()
{
    setLabelConnectionStatus(jceLogin::jceStatus::JCE_NOT_CONNECTED);
    ui->usrnmLineEdit->setText("");
    ui->pswdLineEdit->setText("");
    ui->usrnmLineEdit->setEnabled(true);
    ui->pswdLineEdit->setEnabled(true);

    delete jceLog;
    jceLog = NULL;
    ui->loginButton->setText("&Login");
    this->ui->ratesButton->setDisabled(true);
    return;
}

void MainScreen::uiSetConnectMode() //fix before distrbute
{
    std::string page;

    if (this->jceLog != NULL)
        delete jceLog;

    string username;
    string password;
    if ((ui->usrnmLineEdit->text().isEmpty()) || (ui->pswdLineEdit->text().isEmpty()))
    {
        //add icon near to username and password to mark it
        return;
    }
    setLabelConnectionStatus(jceLogin::jceStatus::JCE_START_VALIDATING_PROGRESS);

    username = ui->usrnmLineEdit->text().toStdString();
    password = ui->pswdLineEdit->text().toStdString();

    ui->usrnmLineEdit->setDisabled(true);
    ui->pswdLineEdit->setDisabled(true);

    userLoginSetting->setUsername(username);
    userLoginSetting->setPassword(password);

    this->repaint();
    page = "connecting with username ";
    page = username;
    page += "and password: ";
    page += password;
    ui->textEdit->setText(ui->textEdit->toPlainText() + QString::fromStdString(page));

    jceLog = new jceLogin(userLoginSetting);
    this->loginHandel->setPointers(jceLog,statusLabel,ui->pswdLineEdit,ui->usrnmLineEdit);

    if (loginHandel->makeConnection() == true)
    {
        page = this->jceLog->getPage();
        ui->textEdit->setText(ui->textEdit->toPlainText() + QString::fromStdString(page));
        setLabelConnectionStatus(jceLogin::jceStatus::JCE_YOU_ARE_IN);
        ui->loginButton->setText("&Logout");
        this->ui->ratesButton->setEnabled(true);
        ui->CoursesTab->setEnabled(true);
        ui->SettingsTab->setEnabled(true);
    }
    else
    {
        uiSetDisconnectMode();
    }
}
void MainScreen::setLabelConnectionStatus(jceLogin::jceStatus statusDescription)
{
    QPixmap iconPix;
    switch (statusDescription)
    {

    case jceLogin::jceStatus::JCE_START_VALIDATING_PROGRESS:
        iconPix.load(":/icons/blueStatusIcon.png");
        statusLabel->setText("Connecting");
        break;
    case jceLogin::jceStatus::JCE_YOU_ARE_IN:
        iconPix.load(":/icons/greenStatusIcon.png");
        statusLabel->setText("Connected");
        break;
    default:
        iconPix.load(":/icons/redStatusIcon.png");
        statusLabel->setText("Disconnected");
        break;
    }
    ButtomStatusLabel->setPixmap(iconPix);

    this->repaint();
}
void MainScreen::on_actionCredits_triggered()
{
    QMessageBox::about(this, "About", "A tiny application to calculate your grades average. <br><br>"
                       "This software is licensed under Qt5's <br>GNU LESSER GENERAL PUBLIC LICENSE V2<br>"
                       "The source code is available at github:<br>"
                       "<a href='https://github.com/liranbg/jceAverageCalculator'>jceAverageCalculator Repository</a>"
                       "<br><br>This front end is Powered by <a href='https://github.com/liranbg/jceConnection'>Jce Connection</a><br><br>"
                       "Made by:"
                       "<ul>"
                       "<li><a href='mailto:liranbg@gmail.com'>Liran Ben Gida</a></li>"
                       "</ul>"
                       "Thanks to: "
                       "<ul>"
                       "<li><a href='mailto:sagidayan@gmail.com'>Sagi Dayan</a></li>"
                       "<li><a href='mailto:nadav2051@gmail.com'>Nadav Luzzato</a></li>"
                       "</ul>");
}

void MainScreen::on_clearTableButton_clicked()
{

    courseTableMgr->clearTable();
    ui->avgLCD->display(courseTableMgr->getAvg());
}

void MainScreen::on_actionExit_triggered()
{
    exit(0);
}


void MainScreen::on_keepLogin_clicked()
{
    if (ui->keepLogin->isChecked())
        SaveData::save(ui->usrnmLineEdit->text(),ui->pswdLineEdit->text());

    else
        SaveData::deleteData();
}