/****************************************************************
 *  RetroShare is distributed under the following license:
 *
 *  Copyright (C) 2006,  crypton
 *
 *  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; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  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 Street, Fifth Floor,
 *  Boston, MA  02110-1301, USA.
 ****************************************************************/

#include "ConfCertDialog.h"

#include <QMessageBox>
#include <QDateTime>
#include <QMenu>
#include <QClipboard>
#include <QMap>

#include <iostream>

#include <retroshare/rspeers.h>
#include <retroshare/rsdisc.h>
#include <retroshare/rsmsgs.h>

#include "gui/help/browser/helpbrowser.h"
#include "gui/common/PeerDefs.h"
#include "gui/common/StatusDefs.h"
#include "gui/RetroShareLink.h"
#include "gui/notifyqt.h"
#include "gui/common/AvatarDefs.h"
#include "gui/MainWindow.h"
#include "mainpage.h"
#include "util/DateTime.h"
#include "util/misc.h"

static QMap<RsPeerId, ConfCertDialog*> instances_ssl;
static QMap<RsPgpId, ConfCertDialog*> instances_pgp;

ConfCertDialog *ConfCertDialog::instance(const RsPeerId& peer_id)
{

    ConfCertDialog *d = instances_ssl[peer_id];
    if (d) {
        return d;
    }

    RsPeerDetails details ;
    if(!rsPeers->getPeerDetails(peer_id,details))
        return NULL ;

    d = new ConfCertDialog(peer_id,details.gpg_id);
    instances_ssl[peer_id] = d;

    return d;
}
ConfCertDialog *ConfCertDialog::instance(const RsPgpId& pgp_id)
{

    ConfCertDialog *d = instances_pgp[pgp_id];
    if (d) {
        return d;
    }

    d = new ConfCertDialog(RsPeerId(),pgp_id);
    instances_pgp[pgp_id] = d;

    return d;
}
/** Default constructor */
ConfCertDialog::ConfCertDialog(const RsPeerId& id, const RsPgpId &pgp_id, QWidget *parent, Qt::WindowFlags flags)
  : QDialog(parent, flags), peerId(id), pgpId(pgp_id)
{
    /* Invoke Qt Designer generated QObject setup routine */
    ui.setupUi(this);

//	 if(id.isNull())
//		 ui._useOldFormat_CB->setChecked(true) ;
//	 else
//	 {
//		 ui._useOldFormat_CB->setChecked(false) ;
//		 ui._useOldFormat_CB->setEnabled(false) ;
//	 }

	ui.headerFrame->setHeaderImage(QPixmap(":/images/user/identityinfo64.png"));
    ui.headerFrame->setHeaderText(tr("Friend node details"));

    //ui._chat_CB->hide() ;

	setAttribute(Qt::WA_DeleteOnClose, true);

    connect(ui.buttonBox, SIGNAL(accepted()), this, SLOT(applyDialog()));
    connect(ui.buttonBox, SIGNAL(rejected()), this, SLOT(close()));
    connect(ui._shouldAddSignatures_CB, SIGNAL(toggled(bool)), this, SLOT(loadInvitePage()));

    //connect(ui.denyFriendButton, SIGNAL(clicked()), this, SLOT(denyFriend()));
    //connect(ui._shouldAddSignatures_CB_2, SIGNAL(toggled(bool)), this, SLOT(loadInvitePage()));

    ui.avatar->setFrameType(AvatarWidget::NORMAL_FRAME);

    MainWindow *w = MainWindow::getInstance();
    if (w) {
        connect(this, SIGNAL(configChanged()), w->getPage(MainWindow::Network), SLOT(insertConnect()));
    }
}

ConfCertDialog::~ConfCertDialog()
{
//    if(peerId.isNull())
    {
        QMap<RsPeerId, ConfCertDialog*>::iterator it = instances_ssl.find(peerId);
        if (it != instances_ssl.end())
            instances_ssl.erase(it);
    }
//    else
    {
        QMap<RsPgpId, ConfCertDialog*>::iterator it = instances_pgp.find(pgpId);
        if (it != instances_pgp.end())
            instances_pgp.erase(it);
    }
}


void ConfCertDialog::setServiceFlags()
{
    ServicePermissionFlags flags(0) ;

    if(  ui._direct_transfer_CB->isChecked()) flags = flags | RS_NODE_PERM_DIRECT_DL ;
    if(  ui._allow_push_CB->isChecked()) flags = flags | RS_NODE_PERM_ALLOW_PUSH ;

    rsPeers->setServicePermissionFlags(pgpId,flags) ;
}

void ConfCertDialog::loadAll()
{
    for(QMap<RsPeerId, ConfCertDialog*>::iterator it = instances_ssl.begin(); it != instances_ssl.end(); ++it)  it.value()->load();
    for(QMap<RsPgpId , ConfCertDialog*>::iterator it = instances_pgp.begin(); it != instances_pgp.end(); ++it)  it.value()->load();
}

void ConfCertDialog::load()
{
    RsPeerDetails detail;

    if(!rsPeers->getPeerDetails(peerId, detail))
    {
        QMessageBox::information(this,
                                 tr("RetroShare"),
                                 tr("Error : cannot get peer details."));
        close();
        return;
    }

    ui._direct_transfer_CB->setChecked(  detail.service_perm_flags & RS_NODE_PERM_DIRECT_DL ) ;
    ui._allow_push_CB->setChecked(  detail.service_perm_flags & RS_NODE_PERM_ALLOW_PUSH) ;

    //ui.pgpfingerprint->setText(QString::fromUtf8(detail.name.c_str()));
    ui.peerid->setText(QString::fromStdString(detail.id.toStdString()));

    RetroShareLink link;
    link.createPerson(detail.gpg_id);

    ui.pgpfingerprint->setText(link.toHtml());
    ui.pgpfingerprint->setToolTip(link.title());

         ui.avatar->setId(ChatId(peerId));

		 ui.loc->setText(QString::fromUtf8(detail.location.c_str()));
		 // Dont Show a timestamp in RS calculate the day
		 ui.lastcontact->setText(DateTime::formatLongDateTime(detail.lastConnect));

		 /* set retroshare version */
		 std::string version;
		 rsDisc->getPeerVersion(detail.id, version);
		 ui.version->setText(QString::fromStdString(version));

		 RsPeerCryptoParams cdet ;
		 if(RsControl::instance()->getPeerCryptoDetails(detail.id,cdet) && cdet.connexion_state!=0)
		 {
			 QString ct ;
			  ct += QString::fromStdString(cdet.cipher_version) + ": ";
			 ct += QString::fromStdString(cdet.cipher_name);

			 if(cdet.cipher_version != "TLSv1.2")
				ct += QString::number(cdet.cipher_bits_1);

			 ui.crypto_info->setText(ct) ;
		 }
		 else
			 ui.crypto_info->setText(tr("Not connected")) ;

		 if (detail.isHiddenNode)
		 {
			 // enable only the first row and set name of the first label to "Hidden Address"
			 ui.l_localAddress->setText(tr("Hidden Address"));

			 ui.l_extAddress->setEnabled(false);
			 ui.extAddress->setEnabled(false);
			 ui.l_portExternal->setEnabled(false);
			 ui.extPort->setEnabled(false);

			 ui.l_dynDNS->setEnabled(false);
			 ui.dynDNS->setEnabled(false);

			 /* set hidden address */
			 ui.localAddress->setText(QString::fromStdString(detail.hiddenNodeAddress));
			 ui.localPort -> setValue(detail.hiddenNodePort);

			 // set everything else to none
			 ui.extAddress->setText(tr("none"));
			 ui.extPort->setValue(0);
			 ui.dynDNS->setText(tr("none"));
		 }
		 else
		 {
			 // enable everything and set name of the first label to "Local Address"
			 ui.l_localAddress->setText(tr("Local Address"));

			 ui.l_extAddress->setEnabled(true);
			 ui.extAddress->setEnabled(true);
			 ui.l_portExternal->setEnabled(true);
			 ui.extPort->setEnabled(true);

			 ui.l_dynDNS->setEnabled(true);
			 ui.dynDNS->setEnabled(true);

			 /* set local address */			 
			 ui.localAddress->setText(QString::fromStdString(detail.localAddr));
			 ui.localPort -> setValue(detail.localPort);
			 /* set the server address */
			 ui.extAddress->setText(QString::fromStdString(detail.extAddr));
			 ui.extPort -> setValue(detail.extPort);

			 ui.dynDNS->setText(QString::fromStdString(detail.dyndns));
		 }

		 ui.statusline->setText(StatusDefs::connectStateString(detail));

		 ui.ipAddressList->clear();
		 for(std::list<std::string>::const_iterator it(detail.ipAddressList.begin());it!=detail.ipAddressList.end();++it)
			 ui.ipAddressList->addItem(QString::fromStdString(*it));

		 ui.loc->show();
		 ui.label_loc->show();
		 ui.statusline->show();
		 ui.label_status->show();
		 ui.lastcontact->show();
		 ui.label_last_contact->show();
		 ui.version->show();
		 ui.label_version->show();

		 ui.groupBox->show();
		 ui.groupBox_4->show();
		 ui.tabWidget->show();
         //ui.rsid->hide();
         //ui.label_rsid->hide();
		 ui.pgpfingerprint->show();
         //ui.pgpfingerprint_label->show();

		ui.stabWidget->setTabEnabled(2,true) ;
		ui.stabWidget->setTabEnabled(3,true) ;
		ui.stabWidget->setTabEnabled(4,true) ;

     loadInvitePage() ;
}

void ConfCertDialog::loadInvitePage()
{
    RsPeerDetails detail;

    if (!rsPeers->getPeerDetails(peerId, detail))
    {
        QMessageBox::information(this,
                                 tr("RetroShare"),
                                 tr("Error : cannot get peer details."));
        close();
        return;
    }
 //   std::string pgp_key = rsPeers->getPGPKey(detail.gpg_id,ui._shouldAddSignatures_CB_2->isChecked()) ; // this needs to be a SSL id

//	ui.userCertificateText_2->setReadOnly(true);
//	ui.userCertificateText_2->setMinimumHeight(200);
//	ui.userCertificateText_2->setMinimumWidth(530);
//	QFont font("Courier New",10,50,false);
//	font.setStyleHint(QFont::TypeWriter,QFont::PreferMatch);
//	font.setStyle(QFont::StyleNormal);
//	ui.userCertificateText_2->setFont(font);
//	ui.userCertificateText_2->setText(QString::fromUtf8(pgp_key.c_str()));

        std::string invite = rsPeers->GetRetroshareInvite(detail.id,ui._shouldAddSignatures_CB->isChecked()) ; // this needs to be a SSL id

    QString infotext ;

    //infotext += tr("<p>Use this certificate to make new friends. Send it by email, or give it hand to hand.</p>") ;
    infotext += tr("<p>This certificate contains:") ;
    infotext += "<UL>" ;
    infotext += "<li> a <b>PGP public key</b>";
    infotext += " (" + QString::fromUtf8(detail.name.c_str())  + "@" + detail.gpg_id.toStdString().c_str()+")" ;
    if(ui._shouldAddSignatures_CB->isChecked())
        infotext += tr(" with ")+QString::number(detail.gpgSigners.size()-1)+" external signatures</li> " ;
    else
        infotext += tr("</li> ") ;

    infotext += tr("<li>a <b>node ID</b> and <b>name</b>") +" (" + detail.id.toStdString().c_str() + ", " + QString::fromUtf8(detail.location.c_str()) +")" ;
    infotext += "</li>" ;

    infotext += "<li>" ;
    if(detail.isHiddenNode)
        infotext += tr("an <b>onion address</b> and <b>port</b>") +" (" + detail.hiddenNodeAddress.c_str() + ":" + QString::number(detail.hiddenNodePort)+ ")";
    else
        infotext += tr("an <b>IP address</b> and <b>port</b>") +" (" + detail.connectAddr.c_str() + ":" + QString::number(detail.connectPort)+ ")";
    infotext += "</li>" ;

    infotext += QString("</p>") ;

    if(rsPeers->getOwnId() == detail.id)
        infotext += tr("<p>You can use this certificate to make new friends. Send it by email, or give it hand to hand.</p>") ;

    ui.userCertificateText->setToolTip(infotext) ;

        ui.userCertificateText->setReadOnly(true);
        ui.userCertificateText->setMinimumHeight(200);
        ui.userCertificateText->setMinimumWidth(530);
        QFont font("Courier New",10,50,false);
        font.setStyleHint(QFont::TypeWriter,QFont::PreferMatch);
        font.setStyle(QFont::StyleNormal);
        ui.userCertificateText->setFont(font);
        ui.userCertificateText->setText(QString::fromUtf8(invite.c_str()));
}


void ConfCertDialog::applyDialog()
{
    std::cerr << "ConfCertDialog::applyDialog() called" << std::endl ;
    RsPeerDetails detail;
    if (!rsPeers->getPeerDetails(peerId, detail))
    {
        if (!rsPeers->getGPGDetails(pgpId, detail)) {
            QMessageBox::information(this,
                                     tr("RetroShare"),
                                     tr("Error : cannot get peer details."));
            close();
            return;
        }
    }

        if(!detail.isHiddenNode)
        {
			/* check if the data is the same */
			bool localChanged = false;
			bool extChanged = false;
			bool dnsChanged = false;

			/* set local address */
			if ((detail.localAddr != ui.localAddress->text().toStdString()) || (detail.localPort != ui.localPort -> value()))
				localChanged = true;

			if ((detail.extAddr != ui.extAddress->text().toStdString()) || (detail.extPort != ui.extPort -> value()))
				extChanged = true;

			if ((detail.dyndns != ui.dynDNS->text().toStdString()))
				dnsChanged = true;

			/* now we can action the changes */
			if (localChanged)
				rsPeers->setLocalAddress(peerId, ui.localAddress->text().toStdString(), ui.localPort->value());

			if (extChanged)
				rsPeers->setExtAddress(peerId,ui.extAddress->text().toStdString(), ui.extPort->value());

			if (dnsChanged)
				rsPeers->setDynDNS(peerId, ui.dynDNS->text().toStdString());

			if(localChanged || extChanged || dnsChanged)
				emit configChanged();
        }
        else
        {
            if((detail.hiddenNodeAddress != ui.localAddress->text().toStdString()) || (detail.hiddenNodePort != ui.localPort->value()))
            {
				rsPeers->setHiddenNode(peerId,ui.localAddress->text().toStdString(), ui.localPort->value());
				emit configChanged();
			}
		}

	 setServiceFlags() ;

    loadAll();
    close();
}

void ConfCertDialog::showHelpDialog()
{
    showHelpDialog("trust");
}

/**< Shows the help browser and displays the given help <b>topic</b>. */
void ConfCertDialog::showHelpDialog(const QString &topic)
{
    HelpBrowser::showWindow(topic);
}