/*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2004-2012 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include "pageplayrecord.h"

#include <QFont>
#include <QGridLayout>
#include <QPushButton>
#include <QListWidget>
#include <QListWidgetItem>
#include <QFileInfo>
#include <QMessageBox>
#include <QInputDialog>

#include "hwconsts.h"

#include "DataManager.h"

QLayout * PagePlayDemo::bodyLayoutDefinition()
{
    QGridLayout * pageLayout = new QGridLayout();

    pageLayout->setColumnStretch(0, 1);
    pageLayout->setColumnStretch(1, 2);
    pageLayout->setColumnStretch(2, 1);
    pageLayout->setRowStretch(2, 100);

    BtnPlayDemo = new QPushButton(this);
    BtnPlayDemo->setFont(*font14);
    BtnPlayDemo->setText(QPushButton::tr("Play demo"));
    pageLayout->addWidget(BtnPlayDemo, 3, 2);

    BtnRenameRecord = new QPushButton(this);
    BtnRenameRecord->setText(QPushButton::tr("Rename"));
    pageLayout->addWidget(BtnRenameRecord, 0, 2);

    BtnRemoveRecord = new QPushButton(this);
    BtnRemoveRecord->setText(QPushButton::tr("Delete"));
    pageLayout->addWidget(BtnRemoveRecord, 1, 2);

    DemosList = new QListWidget(this);
    DemosList->setGeometry(QRect(170, 10, 311, 311));
    pageLayout->addWidget(DemosList, 0, 1, 3, 1);

    return pageLayout;
}

void PagePlayDemo::connectSignals()
{
    connect(BtnRenameRecord, SIGNAL(clicked()), this, SLOT(renameRecord()));
    connect(BtnRemoveRecord, SIGNAL(clicked()), this, SLOT(removeRecord()));
    connect(&DataManager::instance(), SIGNAL(updated()), this, SLOT(refresh()));
}

PagePlayDemo::PagePlayDemo(QWidget* parent) : AbstractPage(parent)
{
    initPage();
}

void PagePlayDemo::FillFromDir(RecordType rectype)
{
    QDir dir;
    QString extension;

    recType = rectype;

    dir.cd(cfgdir->absolutePath());
    if (rectype == RT_Demo)
    {
        dir.cd("Demos");
        extension = "hwd";
        BtnPlayDemo->setText(QPushButton::tr("Play demo"));
    }
    else
    {
        dir.cd("Saves");
        extension = "hws";
        BtnPlayDemo->setText(QPushButton::tr("Load"));
    }
    dir.setFilter(QDir::Files);

    QStringList sl = dir.entryList(QStringList(QString("*.%2.%1").arg(extension, *cProtoVer)));
    sl.replaceInStrings(QRegExp(QString("^(.*)\\.%2\\.%1$").arg(extension, *cProtoVer)), "\\1");

    DemosList->clear();
    DemosList->addItems(sl);

    for (int i = 0; i < DemosList->count(); ++i)
    {
        DemosList->item(i)->setData(Qt::UserRole, dir.absoluteFilePath(QString("%1.%3.%2").arg(sl[i], extension, *cProtoVer)));
        DemosList->item(i)->setIcon(recType == RT_Demo ? QIcon(":/res/file_demo.png") : QIcon(":/res/file_save.png"));
    }
}


void PagePlayDemo::refresh()
{
    if (this->isVisible())
        FillFromDir(recType);
}


void PagePlayDemo::renameRecord()
{
    QListWidgetItem * curritem = DemosList->currentItem();
    if (!curritem)
    {
        QMessageBox::critical(this,
                              tr("Error"),
                              tr("Please select record from the list"),
                              tr("OK"));
        return ;
    }
    QFile rfile(curritem->data(Qt::UserRole).toString());

    QFileInfo finfo(rfile);

    bool ok;

    QString newname = QInputDialog::getText(this, tr("Rename dialog"), tr("Enter new file name:"), QLineEdit::Normal, finfo.completeBaseName().replace("." + *cProtoVer, ""), &ok);

    if(ok && newname.size())
    {
        QString newfullname = QString("%1/%2.%3.%4")
                              .arg(finfo.absolutePath())
                              .arg(newname)
                              .arg(*cProtoVer)
                              .arg(finfo.suffix());

        ok = rfile.rename(newfullname);
        if(!ok)
            QMessageBox::critical(this, tr("Error"), tr("Cannot rename to") + newfullname);
        else
            FillFromDir(recType);
    }
}

void PagePlayDemo::removeRecord()
{
    QListWidgetItem * curritem = DemosList->currentItem();
    if (!curritem)
    {
        QMessageBox::critical(this,
                              tr("Error"),
                              tr("Please select record from the list"),
                              tr("OK"));
        return ;
    }
    QFile rfile(curritem->data(Qt::UserRole).toString());

    bool ok;

    ok = rfile.remove();
    if(!ok)
        QMessageBox::critical(this, tr("Error"), tr("Cannot delete file"));
    else
    {
        int i = DemosList->row(curritem);
        delete curritem;
        DemosList->setCurrentRow(i < DemosList->count() ? i : DemosList->count() - 1);
    }
}

bool PagePlayDemo::isSave()
{
    return recType == RT_Save;
}