/****************************************************************************
** copyright 2001 ljp ljp@llornkcor.com
** Created: Fri Dec 14 08:16:46 2001
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include "fileBrowser.h"
#include <qpe/config.h>
#include <qpe/resource.h>
#include <qpe/fileselector.h>
#include <qpe/qpeapplication.h>

#include <qwidgetstack.h>
#include <qlistview.h>
#include <qcombo.h>
#include <qpushbutton.h>
#include <qfile.h>
#include <qmessagebox.h>
#include <qlayout.h>
#include <unistd.h>

static int u_id = 1;
static int get_unique_id()
{
    return u_id++;
}

fileBrowser::fileBrowser( QWidget* parent,  const char* name, bool modal, WFlags fl , const QString filter )
    : QDialog( parent, name, modal, fl )
{
    if ( !name )
        setName( "fileBrowser" );
    setCaption(tr( name ) );
    filterStr=filter;

    QGridLayout *layout = new QGridLayout( this );
    layout->setSpacing( 4 );
    layout->setMargin( 4 );


    dirLabel = new QLabel(this, "DirLabel");
    dirLabel->setText(currentDir.canonicalPath());
    dirLabel->setMinimumSize( QSize( 50, 15 ) );
    dirLabel->setMaximumSize( QSize( 250, 15 ) );
    layout->addWidget( dirLabel, 0, 0 );

    docButton = new QPushButton(Resource::loadIconSet("DocsIcon"),"",this,"docsButton");
    docButton->setMinimumSize( QSize( 25, 25 ) );
    docButton->setMaximumSize( QSize( 25, 25 ) );
    connect( docButton,SIGNAL(released()),this,SLOT( docButtonPushed()) );
    docButton->setFlat(TRUE);
    layout->addWidget( docButton, 0, 1 );

    homeButton = new QPushButton( Resource::loadIconSet("home"),"",this,"homeButton");
    homeButton->setMinimumSize( QSize( 25, 25 ) );
    homeButton->setMaximumSize( QSize( 25, 25 ) );
    connect(homeButton,SIGNAL(released()),this,SLOT(homeButtonPushed()) );
    homeButton->setFlat(TRUE);
    layout->addWidget( homeButton, 0, 2 );

    FileStack = new QWidgetStack( this );

	 ListView = new QListView( this, "ListView" );
    ListView->setMinimumSize( QSize( 100, 25 ) );
    ListView->addColumn( tr( "Name" ) );
    ListView->setColumnWidth(0,140);
    ListView->setSorting( 2, FALSE);
    ListView->addColumn( tr( "Size" ) );
    ListView->setColumnWidth(1,59);
//      ListView->addColumn( tr( "" ) );
    ListView->setColumnWidthMode(0,QListView::Manual);
    ListView->setColumnAlignment(1,QListView::AlignRight);
//      ListView->setMultiSelection(true);
//      ListView->setSelectionMode(QListView::Extended);
    ListView->setAllColumnsShowFocus( TRUE );
    connect( ListView, SIGNAL(pressed( QListViewItem*)), SLOT(listClicked(QListViewItem *)) );
    FileStack->addWidget( ListView, get_unique_id() );

    fileSelector = new FileSelector( "text/*", FileStack, "fileselector" , FALSE, FALSE); //buggy
//    connect( fileSelector, SIGNAL( closeMe() ), this, SLOT( showEditTools() ) );
//    connect( fileSelector, SIGNAL( newSelected( const DocLnk &) ), this, SLOT( newFile( const DocLnk & ) ) );
    connect( fileSelector, SIGNAL( fileSelected( const DocLnk &) ), this, SLOT( docOpen( const DocLnk & ) ) );
    layout->addMultiCellWidget( FileStack, 1, 1, 0, 2 );

    SelectionCombo = new QComboBox( FALSE, this, "SelectionCombo" );
    SelectionCombo->setMinimumSize( QSize( 200, 25 ) );
    SelectionCombo->insertItem( tr( "Documents" ) );
    SelectionCombo->insertItem( tr( "All files" ) );
    SelectionCombo->insertItem( tr( "All files (incl. hidden)" ) );
    layout->addMultiCellWidget( SelectionCombo, 2, 2, 0, 2 );
    connect( SelectionCombo, SIGNAL( activated( const QString & ) ),
            this, SLOT( selectionChanged( const QString & ) ) );

    currentDir.setPath(QDir::currentDirPath());
    currentDir.setFilter( QDir::Files | QDir::Dirs/* | QDir::Hidden */| QDir::All);

    populateList();
    move(0,15);
}

fileBrowser::~fileBrowser()
{
}

void fileBrowser::setFileView( int selection )
{
    SelectionCombo->setCurrentItem( selection );
    selectionChanged( SelectionCombo->currentText() );
}

void fileBrowser::populateList()
{
    ListView->clear();
//qDebug(currentDir.canonicalPath());
    currentDir.setSorting(/* QDir::Size*/ /*| QDir::Reversed | */QDir::DirsFirst);
    currentDir.setMatchAllDirs(TRUE);

    currentDir.setNameFilter(filterStr);
//    currentDir.setNameFilter("*.txt;*.etx");
    QString fileL, fileS;
    const QFileInfoList *list = currentDir.entryInfoList( /*QDir::All*/ /*, QDir::SortByMask*/);
    QFileInfoListIterator it(*list);
    QFileInfo *fi;
    while ( (fi=it.current()) ) {

        if (fi->isSymLink() ){
            QString symLink=fi->readLink();
//         qDebug("Symlink detected "+symLink);
         QFileInfo sym( symLink);
            fileS.sprintf( "%10li", sym.size() );
            fileL.sprintf( "%s ->  %s",  sym.fileName().data(),sym.absFilePath().data() );

        } else {
//        qDebug("Not a dir: "+currentDir.canonicalPath()+fileL);
            fileS.sprintf( "%10li", fi->size() );
            fileL.sprintf( "%s",fi->fileName().data() );
            if( QDir(QDir::cleanDirPath(currentDir.canonicalPath()+"/"+fileL)).exists() ) {
                fileL+="/";
//     qDebug( fileL);
            }
        }
        item= new QListViewItem( ListView,fileL,fileS );
        ++it;
    }
    ListView->setSorting( 2, FALSE);
    dirLabel->setText(currentDir.canonicalPath());
}

void fileBrowser::upDir()
{
//    qDebug(currentDir.canonicalPath());
}

// you may want to switch these 2 functions. I like single clicks
void fileBrowser::listClicked(QListViewItem *selectedItem)
{
    QString strItem=selectedItem->text(0);
    QString strSize=selectedItem->text(1);
//    qDebug("strItem is "+strItem);
    strSize.stripWhiteSpace();
//  qDebug(strSize);

        if(strItem.find("@",0,TRUE) !=-1 || strItem.find("->",0,TRUE) !=-1 ) { //if symlink
              // is symlink
            QString strItem2=strItem.right( (strItem.length()-strItem.find("->",0,TRUE)) -4);
//            qDebug("strItem symlink is "+strItem2);
            if(QDir(strItem2).exists() ) {
                currentDir.cd(strItem2, TRUE);
                populateList();
            }
        } else { // not a symlink
            if(strItem.find(". .",0,TRUE) && strItem.find("/",0,TRUE)!=-1 ) {
                if(QDir(QDir::cleanDirPath(currentDir.canonicalPath()+"/"+strItem)).exists() ) {
                    strItem=QDir::cleanDirPath(currentDir.canonicalPath()+"/"+strItem);
                    currentDir.cd(strItem,FALSE);
//       qDebug("Path is "+strItem);
                    populateList();
                } else {
                    currentDir.cdUp();
                    populateList();
                }
                if(QDir(strItem).exists()){
                    currentDir.cd(strItem, TRUE);
                    populateList();
                }
            } else {
                strItem=QDir::cleanDirPath(currentDir.canonicalPath()+"/"+strItem);
                  if( QFile::exists(strItem ) ) {
//currentDir.canonicalPath()
                      qDebug("We found our files!!"+strItem);
                    OnOK();
                  }
                } //end not symlink
        chdir(strItem.latin1());
      }
}

void fileBrowser::OnOK()
{
  QListViewItemIterator it1( ListView);
    for ( ; it1.current(); ++it1 ) {
      if ( it1.current()->isSelected() ) {
         selectedFileName=QDir::cleanDirPath(currentDir.canonicalPath()+"/"+it1.current()->text(0));
         qDebug("selected filename is "+selectedFileName);
       fileList.append( selectedFileName );
      }
    }
  accept();
}

void fileBrowser::homeButtonPushed() {
        chdir( QDir::homeDirPath().latin1() );
        currentDir.cd(  QDir::homeDirPath(), TRUE);
        populateList();
        update();
}

void fileBrowser::docButtonPushed() {
        chdir( QString(QPEApplication::documentDir()+"/text").latin1() );
        currentDir.cd( QPEApplication::documentDir()+"/text", TRUE);
        populateList();
        update();

}

void fileBrowser::selectionChanged( const QString &select )
{
    if ( select == "Documents")
    {
        FileStack->raiseWidget( fileSelector );
        dirLabel->hide();
        docButton->hide();
        homeButton->hide();
    }
    else
    {
        if ( select == "All files" )
            currentDir.setFilter( QDir::Files | QDir::Dirs | QDir::All);
        else
            currentDir.setFilter( QDir::Files | QDir::Dirs | QDir::Hidden | QDir::All);

        populateList();
        update();
        dirLabel->show();
        docButton->show();
        homeButton->show();
        FileStack->raiseWidget( ListView );
    }
}

void fileBrowser::docOpen( const DocLnk &doc )
{
    fileList.append( doc.file().latin1() );
    accept();
}