#include "pwgui.h"
#include "ui_pwgui.h"
#include <QMessageBox>
#include <QTimer>
#include <QDesktopWidget>
#include <unistd.h>

#define BUFLEN 400

// ____________________________________________________________________________
PwGui::PwGui(int pfd, char *user, QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::PwGui),
    pipefd(pfd)
{
  // Initialize UI
  initializeUI(user);
  connect(ui->buttonBox, SIGNAL(accepted()), this, SLOT(on_accept()));
  connect(ui->buttonBox, SIGNAL(rejected()), this, SLOT(on_reject()));
}

// ____________________________________________________________________________
PwGui::~PwGui()
{
  delete ui;
}

// ____________________________________________________________________________
void PwGui::initializeUI(char *user)
{
  ui->setupUi(this);

  // Prefill username
  if (user != NULL) {
    ui->lineEditUser->setText(QString::fromUtf8(user));
  }

  // Protect password from being seen
  ui->lineEditPass->setEchoMode(QLineEdit::Password);
  ui->lineEditPass->setInputMethodHints(ui->lineEditPass->inputMethodHints() | Qt::ImhNoAutoUppercase);

  /*  Main Window properties  */

  // Disable close button
  this->setWindowFlags((this->windowFlags() & ~Qt::WindowCloseButtonHint) | Qt::WindowStaysOnTopHint);
  // center dialog on screen center
  QRect desktopRect = QApplication::desktop()->screenGeometry(this);
  this->move( desktopRect.width()/2-this->width()/2,
              desktopRect.height()/2-this->height()/2 );
  this->show();
  this->showNormal();
  this->raise();
  this->activateWindow();
}

// ____________________________________________________________________________
void PwGui::on_accept()
{
  char buffer[BUFLEN + 1];
  int len = snprintf(buffer, BUFLEN, "%s%c%s%c", ui->lineEditUser->text().toUtf8().constData(), 0, ui->lineEditPass->text().toUtf8().constData(), 0);
  if (len > BUFLEN) len = BUFLEN;
  buffer[len] = '\0';
  ::write(pipefd, buffer, len);
  ::close(pipefd);
  // Quit with code 0
  QCoreApplication::instance()->exit(0);
}

// ____________________________________________________________________________
void PwGui::on_reject()
{
  // Quit with code 1
  QCoreApplication::instance()->exit(1);
}