/*
                             This file is part of the Opie Project

                             Copyright (C)2004, 2005 Dan Williams <drw@handhelds.org>
              =.
            .=l.
           .>+-=
 _;:,     .>    :=|.         This program is free software; you can
.> <`_,   >  .   <=          redistribute it and/or  modify it under
:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
.="- .-=="i,     .._         License as published by the Free Software
 - .   .-<_>     .<>         Foundation; either version 2 of the License,
     ._= =}       :          or (at your option) any later version.
    .%`+i>       _;_.
    .i_,=:_.      -<s.       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
..}^=.=       =       ;      Library General Public License for more
++=   -.     .`     .:       details.
:     =  ...= . :.=-
 -.   .:....=;==+<;          You should have received a copy of the GNU
  -_. . .   )=.  =           Library General Public License along with
    --        :-=`           this library; see the file COPYING.LIB.
                             If not, write to the Free Software Foundation,
                             Inc., 59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.
*/

#include "packageinfodlg.h"
#include "opackage.h"
#include "opackagemanager.h"

#include <opie2/oresource.h>
#include <opie2/otabwidget.h>

#include <qlayout.h>
#include <qpushbutton.h>
#include <qwhatsthis.h>

PackageInfoDlg::PackageInfoDlg( QWidget *parent, OPackageManager *pm, const QString &package )
    : QWidget( 0l )
    , m_packman( pm )
    , m_information( this )
    , m_files( this )
    , m_retrieveFiles( 0l )
{
    // Initialize UI
    if ( parent )
        parent->setCaption( package );

    QVBoxLayout *layout = new QVBoxLayout( this, 4, 2 );

    Opie::Ui::OTabWidget *tabWidget = new Opie::Ui::OTabWidget( this );
    layout->addWidget( tabWidget );

    // Information tab
    QWhatsThis::add( &m_information, tr( "This area contains information about the package." ) );
    m_information.reparent( tabWidget, QPoint( 0, 0 ) );
    m_information.setReadOnly( true );
    tabWidget->addTab( &m_information, "UtilsIcon", tr( "Information" ) );

    // Retrive package information
    m_package = m_packman->findPackage( package );
    if ( !m_package )
    {
        m_information.setText( tr( "Unable to retrieve package information." ) );
        return;
    }

    // Display package information
    if ( !m_package->information().isNull() )
        m_information.setText( m_package->information() );
    else
    {
        // Package information is not cached, retrieve it
        QStringList list( package );
        m_packman->executeCommand( OPackage::Info, list, QString::null,
                                   this, SLOT(slotInfo(const QString &)), true );
    }

    // Files tab (display only if package is installed)
    if ( !m_package->versionInstalled().isNull() )
    {
        QWidget *filesWidget = new QWidget( tabWidget );
        QVBoxLayout *filesLayout = new QVBoxLayout( filesWidget, 2, 2 );
        QWhatsThis::add( &m_files, tr( "This area contains a list of files contained in this package." ) );
        m_files.reparent( filesWidget, QPoint( 0, 0 ) );
        m_files.setReadOnly( true );
        filesLayout->addWidget( &m_files );

        // If file list is already cached, display
        if ( !m_package->files().isNull() )
            m_files.setText( m_package->files() );
        else
        {
            m_retrieveFiles = new QPushButton( Opie::Core::OResource::loadPixmap( "packagemanager/apply",
                                               Opie::Core::OResource::SmallIcon ), tr( "Retrieve file list" ),
                                               filesWidget );
            QWhatsThis::add( m_retrieveFiles, tr( "Tap here to retrieve list of files contained in this package." ) );
            filesLayout->addWidget( m_retrieveFiles );
            connect( m_retrieveFiles, SIGNAL(clicked()), this, SLOT(slotBtnFileScan()) );
        }

        tabWidget->addTab( filesWidget, "binary", tr( "File list" ) );
        tabWidget->setCurrentTab( tr( "Information" ) );

    }
    else
        m_files.hide();
}

PackageInfoDlg::~PackageInfoDlg()
{
    if ( !m_package )
        return;

    // Cache package information
    if ( !m_information.text().isNull() )
        m_package->setInformation( m_information.text() );

    // Cache package file list
    if ( !m_files.text().isEmpty() )
        m_package->setFiles( m_files.text() );
}

void PackageInfoDlg::slotBtnFileScan()
{
    m_files.clear();

    QStringList list( m_package->name() );
    m_packman->executeCommand( OPackage::Files, list, QString::null,
                               this, SLOT(slotFiles(const QString &)), true );

    if ( m_retrieveFiles )
        m_retrieveFiles->hide();
}

void PackageInfoDlg::slotInfo( const QString &info )
{
    m_information.append( info );
}

void PackageInfoDlg::slotFiles( const QString &filelist )
{
    QString str = filelist;

    // Skip first line of output ("Package xxx is installed...")
    if ( str.startsWith( "Package " ) )
        str = str.right( str.length() - str.find( '\n' ) - 1 );

    m_files.append( str );
}