/*
 *            kPPP: A front end for pppd for the KDE project
 *
 * $Id: modeminfo.cpp,v 1.5 2004/02/21 18:32:38 ar Exp $
 *
 * Copyright (C) 1997 Bernd Johannes Wuebben
 *                    wuebben@math.cornell.edu
 *
 * This file contributed by: Markus Wuebben, mwuebben@fiwi02.wiwi.uni-tuebingen.de
 *
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this program; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "modeminfo.h"
#include "modem.h"

/* OPIE */
#include <qpe/qpeapplication.h>

/* QT */
#include <qregexp.h>
#include <qlayout.h>
#include <qmessagebox.h>
#include <qapplication.h>

/* STD */
#include <unistd.h>

ModemTransfer::ModemTransfer(Modem *mo, QWidget *parent, const char *name)
        : QDialog(parent, name,TRUE, WStyle_Customize|WStyle_NormalBorder),
        _modem(mo)
{
    setCaption(QObject::tr("ATI Query"));
    //  KWin::setIcons(winId(), kapp->icon(), kapp->miniIcon());

    QVBoxLayout *tl = new QVBoxLayout(this, 10, 10);

    progressBar = new QProgressBar(this, "bar");
    progressBar->setTotalSteps(8);

    statusBar = new QLabel(this,"sBar");
    statusBar->setFrameStyle(QFrame::Panel|QFrame::Sunken);
    statusBar->setAlignment(AlignCenter);

    // This is a rather complicated case. Since we do not know which
    // message is the widest in the national language, we'd to
    // search all these messages. This is a little overkill, so I take
    // the longest english message, translate it and give it additional
    // 20 percent space. Hope this is enough.
    statusBar->setText(QObject::tr("Unable to create modem lock file."));
    statusBar->setFixedWidth((statusBar->sizeHint().width() * 12) / 10);
    statusBar->setFixedHeight(statusBar->sizeHint().height() + 4);

    // set original text
    statusBar->setText(QObject::tr("Looking for modem..."));
    progressBar->setFixedHeight(statusBar->minimumSize().height());
    tl->addWidget(progressBar);
    tl->addWidget(statusBar);

    cancel = new QPushButton(QObject::tr("Cancel"), this);
    cancel->setFocus();
    connect(cancel, SIGNAL(clicked()), SLOT(cancelbutton()));

    QHBoxLayout *l1 = new QHBoxLayout;
    tl->addLayout(l1);
    l1->addStretch(1);
    l1->addWidget(cancel);

    setFixedSize(sizeHint());

    step = 0;

    ////////////////////////////////////////////////

    timeout_timer = new QTimer(this);
    connect(timeout_timer, SIGNAL(timeout()), SLOT(time_out_slot()));

    scripttimer = new QTimer(this);
    connect(scripttimer, SIGNAL(timeout()), SLOT(do_script()));

    timeout_timer->start(15000,TRUE); // 15 secs single shot
    QTimer::singleShot(500, this, SLOT(init()));

}


void ModemTransfer::ati_done()
{
    scripttimer->stop();
    timeout_timer->stop();
    _modem->closetty();
    _modem->unlockdevice();
    hide();

    // open the result window
    ModemInfo *mi = new ModemInfo(this);
    for(int i = 0; i < NUM_OF_ATI; i++)
        mi->setAtiString(i, ati_query_strings[i]);

    QPEApplication::execDialog( mi );
    delete mi;

    accept();
}


void ModemTransfer::time_out_slot()
{
    timeout_timer->stop();
    scripttimer->stop();

    QMessageBox::warning(this, tr("Error"), QObject::tr("Modem Query timed out."));
    reject();
}


void ModemTransfer::init()
{

    qApp->processEvents();

    int lock = _modem->lockdevice();
    if (lock == 1)
    {

        statusBar->setText(QObject::tr("Modem device is locked."));
        return;
    }

    if (lock == -1)
    {

        statusBar->setText(QObject::tr("Unable to create modem lock file."));
        return;
    }


    if(_modem->opentty())
    {
        if(_modem->hangup())
        {
            usleep(100000);  // wait 0.1 secs
            _modem->writeLine("ATE0Q1V1"); // E0 don't echo the commands I send ...

            statusBar->setText(QObject::tr("Modem Ready"));
            qApp->processEvents();
            usleep(100000);  // wait 0.1 secs
            qApp->processEvents();
            scripttimer->start(1000);	 	// this one does the ati query

            // clear modem buffer
            _modem->flush();

            _modem->notify(this, SLOT(readChar(unsigned char)));
            return;
        }
    }

    // opentty() or hangup() failed
    statusBar->setText(_modem->modemMessage());
    step = 99; // wait until cancel is pressed
    _modem->unlockdevice();
}


void ModemTransfer::do_script()
{
    QString msg;
    QString query;

    switch(step)
    {
    case 0:
        readtty();
        statusBar->setText("ATI...");
        progressBar->setProgress( progressBar->progress() + 1);
        _modem->writeLine("ATI\n");
        break;

    case 1:
    case 2:
    case 3:
    case 4:
    case 5:
    case 6:
    case 7:
        readtty();
        msg.sprintf("ATI %d ...", step);
        query.sprintf("ATI%d\n", step);
        statusBar->setText(msg);
        progressBar->setProgress( progressBar->progress() + 1);
        _modem->writeLine(query.local8Bit());
        break;

    default:
        readtty();
        ati_done();
    }
    step++;
}

void ModemTransfer::readChar(unsigned char c)
{
    if(readbuffer.length() < 255)
        readbuffer += c;
}

void ModemTransfer::readtty()
{

    if (step == 0)
        return;

    readbuffer.replace(QRegExp("[\n\r]")," ");         // remove stray \n and \r
    readbuffer = readbuffer.stripWhiteSpace(); // strip of leading or trailing white
    // space

    if(step <= NUM_OF_ATI)
        ati_query_strings[step-1] = readbuffer.copy();

    readbuffer = "";
}


void ModemTransfer::cancelbutton()
{
    scripttimer->stop();
    _modem->stop();
    timeout_timer->stop();

    statusBar->setText(QObject::tr("One moment please..."));
    qApp->processEvents();

    _modem->hangup();

    _modem->closetty();
    _modem->unlockdevice();
    reject();
}


void ModemTransfer::closeEvent( QCloseEvent *e )
{
    cancelbutton();
    e->accept();
}


ModemInfo::ModemInfo(QWidget *parent, const char* name)
        : QDialog(parent, name, TRUE, WStyle_Customize|WStyle_NormalBorder)
{
    QString label_text;

    setCaption(QObject::tr("Modem Query Results"));
    // KWin::setIcons(winId(), kapp->icon(), kapp->miniIcon());

    QVBoxLayout *tl = new QVBoxLayout(this, 10, 10);

    QGridLayout *l1 = new QGridLayout(NUM_OF_ATI, 2, 5);
    tl->addLayout(l1, 1);
    for(int  i = 0 ; i < NUM_OF_ATI ; i++)
    {

        label_text = "";
        if ( i == 0)
            label_text.sprintf("ATI :");
        else
            label_text.sprintf("ATI %d:", i );

        ati_label[i] = new QLabel(label_text, this);
        l1->addWidget(ati_label[i], i, 0);

        ati_label_result[i] =  new QLineEdit(this);
        ati_label_result[i]->setMinimumWidth(fontMetrics().width('H') * 24);
        l1->addWidget(ati_label_result[i], i, 1);
    }
    //tl->addSpacing(1);

    QHBoxLayout *l2 = new QHBoxLayout;
    QPushButton *ok = new QPushButton(QObject::tr("Close"), this);
    ok->setDefault(TRUE);
    ok->setFocus();

    tl->addLayout(l2);
    l2->addStretch(1);

    connect(ok, SIGNAL(clicked()), SLOT(accept()));
    l2->addWidget(ok);

    setMinimumSize(sizeHint());
}


void ModemInfo::setAtiString(int i, QString s)
{
    if(i < NUM_OF_ATI)
        ati_label_result[i]->setText(s);
}

//#include "modeminfo.moc"