/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <QGridLayout>

#include <QHBoxLayout>

#include <QVBoxLayout>

#include <QPushButton>

#include <QGroupBox>

#include <QLabel>

#include <QLineEdit>

#include <QSpinBox>

#include <QTcpSocket>

#include <QHostAddress>

#include <QClipboard>

#include "pagenetserver.h"

#include "hwconsts.h"

#include "HWApplication.h"

QLayout * PageNetServer::bodyLayoutDefinition()

{

    QVBoxLayout * pageLayout = new QVBoxLayout();

    QWidget * wg = new QWidget(this);

    pageLayout->addWidget(wg);

    QGridLayout * wgLayout = new QGridLayout(wg);

    wgLayout->setColumnStretch(0, 1);

    wgLayout->setColumnStretch(1, 3);

    wgLayout->setColumnStretch(2, 1);

    wgLayout->setRowStretch(0, 0);

    wgLayout->setRowStretch(1, 1);

    QGroupBox * gb = new QGroupBox(wg);

    wgLayout->addWidget(gb, 0, 1);

    QGridLayout * gbLayout = new QGridLayout(gb);

    labelSD = new QLabel(gb);

    labelSD->setText(QLabel::tr("Server name:"));

    gbLayout->addWidget(labelSD, 0, 0);

    leServerDescr = new QLineEdit(gb);

    gbLayout->addWidget(leServerDescr, 0, 1);

    labelPort = new QLabel(gb);

    labelPort->setText(QLabel::tr("Server port:"));

    gbLayout->addWidget(labelPort, 1, 0);

    sbPort = new QSpinBox(gb);

    sbPort->setMinimum(1024);

    sbPort->setMaximum(65535);

    gbLayout->addWidget(sbPort, 1, 1);

    BtnDefault = new QPushButton(gb);

    BtnDefault->setMinimumWidth(50);

    BtnDefault->setText(QPushButton::tr("Reset"));

    BtnDefault->setWhatsThis(QPushButton::tr("Set the default server port for Hedgewars"));

    gbLayout->addWidget(BtnDefault, 1, 2);

    BtnShare = new QPushButton(gb);

    BtnShare->setText(QPushButton::tr("Invite your friends to your server in just 1 click!"));

    BtnShare->setWhatsThis(QPushButton::tr("Click to copy your unique server URL to your clipboard. Send this link to your friends and they will be able to join you."));

    gbLayout->addWidget(BtnShare, 2, 1);

    labelURL = new QLabel(gb);

    labelURL->setText(

              "<style type=\"text/css\"> a { color: #ffcc00; } </style>"

              "<div align=\"center\">"

              "<a href=\"https://hedgewars.org/kb/HWPlaySchemeSyntax\">" +

              tr("Click here for details") +

              "</a></div>");

    labelURL->setOpenExternalLinks(true);

    gbLayout->addWidget(labelURL, 3, 1);

    return pageLayout;

}

QLayout * PageNetServer::footerLayoutDefinition()

{

    QHBoxLayout * bottomLayout = new QHBoxLayout();

    BtnStart = formattedButton(QPushButton::tr("Start"));

    BtnStart->setWhatsThis(QPushButton::tr("Start private server"));

    BtnStart->setMinimumSize(180, 50);

    bottomLayout->addStretch();

    bottomLayout->addWidget(BtnStart, 0, Qt::AlignBottom);

    return bottomLayout;

}

void PageNetServer::connectSignals()

{

    connect(BtnDefault, SIGNAL(clicked()), this, SLOT(setDefaultPort()));

    connect(BtnShare, SIGNAL(clicked()), this, SLOT(copyUrl()));

}

PageNetServer::PageNetServer(QWidget* parent) : AbstractPage(parent)

{

    initPage();

}

void PageNetServer::setDefaultPort()

{

    sbPort->setValue(NETGAME_DEFAULT_PORT);

}

// This function assumes that the user wants to share their server while connected to

// the Internet and that he/she is using direct access (eg no NATs). To determine the

// IP we briefly connect to Hedgewars website and fallback to user intervention

// after 4 seconds of timeout.

void PageNetServer::copyUrl()

{

    QString address = "hwplay://";

    QTcpSocket socket;

    socket.connectToHost("www.hedgewars.org", 80);

    if (socket.waitForConnected(4000))

        address += socket.localAddress().toString();

    else

        address += "<" + tr("Insert your address here") + ">";

    if (sbPort->value() != NETGAME_DEFAULT_PORT)

        address += ":" + QString::number(sbPort->value());

    QClipboard *clipboard = HWApplication::clipboard();

    clipboard->setText(address);

    qDebug() << address << "copied to clipboard";

}