/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 * 

 * Contributors:

 *     Zhiqiang Yang <zhiqiang.yang@nokia.com>

 * 

 * Description:

 *     The find result model source file of file manager

 */

#include "fmfindresultmodel.h"

#include "fmfindthread.h"

#include <QDateTime>

FmFindResultModel::FmFindResultModel( QObject *parent )

    : QAbstractListModel( parent )

{

    init();

    connect( mFindThread, SIGNAL(finished()), this, SIGNAL(finished()) );

	connect( mFindThread, SIGNAL(found(int)), this, SLOT(on_findThread_found( int) ), Qt::BlockingQueuedConnection ); 

}

FmFindResultModel::~FmFindResultModel()

{

	delete mIconProvider;

}

int FmFindResultModel::rowCount( const QModelIndex &parent ) const

{

    if (!parent.isValid())

        return mFindResult.size();

    return 0;

}

int FmFindResultModel::columnCount( const QModelIndex &parent ) const

{

    if (!parent.isValid())

        return 4;

    return 0;

}

QVariant FmFindResultModel::data( const QModelIndex &index, int role ) const

{

    if (!indexValid( index ))

        return QVariant();

    if (role == Qt::DisplayRole) {

        switch (index.column()) {

            case 0: return fileInfo( index ).fileName();

            case 1: return fileInfo( index ).size();

            case 2: return mIconProvider->type( fileInfo( index ) );

            case 3: return fileInfo( index ).lastModified().toString( Qt::LocalDate );

            default:

                qWarning( "FmFindResultData: invalid display value column %d", index.column() );

                return QVariant();

        }

    }

    if (index.column() == 0) {

        if (role == FileIconRole) {

            return mIconProvider->icon( fileInfo( index ) );

        }

    }

    if (index.column() == 1 && role == Qt::TextAlignmentRole) {

        return Qt::AlignRight;

    }

    return QVariant();

}

QString FmFindResultModel::filePath ( const QModelIndex & index ) const

{

   return fileInfo( index ).filePath();

}

QVariant FmFindResultModel::headerData( int section, Qt::Orientation orientation, int role ) const

{

    if (orientation == Qt::Horizontal) {

        if (role != Qt::DisplayRole)

            return QVariant();

        switch (section) {

            default: return QVariant();

        }

    }

    return QAbstractItemModel::headerData( section, orientation, role );

}

bool FmFindResultModel::insertRows( int row, int count, const QModelIndex &parent )

{

    Q_UNUSED( parent );

	if (row < 0 || count < 1)

		return false;

	beginInsertRows( QModelIndex(), row, row + count - 1 );

	endInsertRows();

	return true;

}

bool FmFindResultModel::removeRows( int row, int count, const QModelIndex &parent )

{

    Q_UNUSED( parent );

	if (row < 0 || count < 1 || row + count > mFindResult.size())

		return false;

	beginRemoveRows( QModelIndex(), row, row + count - 1 );

	for (int i = 0; i < count; ++i)

		mFindResult.removeAt(row);

	endRemoveRows();

	return true;

}

QFileInfo FmFindResultModel::fileInfo( const QModelIndex &index ) const

{

    if (index.row() >= 0 && index.row() < mFindResult.size())

        return QFileInfo( mFindResult[index.row()] );

    else

        return QFileInfo();

}

QString FmFindResultModel::findPath() const

{

    return mFindThread->findPath();

}

void FmFindResultModel::setFindPath( const QString &path )

{

    mFindThread->setFindPath( path );

}

QRegExp FmFindResultModel::pattern() const

{

    return mFindThread->pattern();

}

void FmFindResultModel::setPattern( const QRegExp &regExp )

{

    mFindThread->setPattern( regExp );

}

void FmFindResultModel::find()

{

	if (mFindThread->isRunning())

		return;

    if( findPath().isEmpty() ){

        mFindThread->setLastResult( mFindResult );

    }

	removeRows( 0, mFindResult.size() );

    mFindThread->start();

}

void FmFindResultModel::stop()

{

    mFindThread->stop();

    mFindThread->wait();

}

bool FmFindResultModel::isFinding() const

{

    return mFindThread->isRunning();

}

void FmFindResultModel::on_findThread_found( int count )

{

    if( count > 0 ) {

        int size = mFindResult.size();

        insertRows( mFindResult.size() - count, count );

    }

    emit modelCountChanged( mFindResult.size() );

}

bool FmFindResultModel::indexValid( const QModelIndex &index ) const

{

    Q_UNUSED( index );

    return true;

}

void FmFindResultModel::init()

{

    mFindThread = new FmFindThread( &mFindResult, this );

    mFindThread->setObjectName( "findThread" );

}

bool FmFindResultModel::caseNameLessThan(const QString &s1, const QString &s2)

{

    QFileInfo info1( s1 );

    QFileInfo info2( s2 );

    return info1.fileName() < info2.fileName();

}

bool FmFindResultModel::caseTimeLessThan(const QString &s1, const QString &s2)

{

    QFileInfo info1( s1 );

    QFileInfo info2( s2 );

    return info1.lastModified() < info2.lastModified();

}

bool FmFindResultModel::caseSizeLessThan(const QString &s1, const QString &s2)

{

    QFileInfo info1( s1 );

    QFileInfo info2( s2 );

    return info1.size() < info2.size();

}

bool FmFindResultModel::caseTypeLessThan(const QString &s1, const QString &s2)

{

    QFileInfo info1( s1 );

    QFileInfo info2( s2 );

    if( info1.isDir() != info2.isDir() ){

        return info1.isDir();

    }

    else{

        return info1.suffix().toLower() < info2.suffix().toLower();   

    }

}

void FmFindResultModel::sort ( int column, Qt::SortOrder order )

{  

    Q_UNUSED( order );

//    emit  layoutAboutToBeChanged();

    removeRows( 0, mFindResult.size() );

    switch( ( SortFlag )column )

    {

    case Name:

        qSort( lst.begin(), lst.end(), caseNameLessThan );

        break;

    case Time:

        qSort( lst.begin(), lst.end(), caseTimeLessThan );

        break;

    case Size:

        qSort( lst.begin(), lst.end(), caseSizeLessThan );

        break;

    case Type:

        qSort( lst.begin(), lst.end(), caseTypeLessThan );

        break;

    }    

    insertRows( 0, mFindResult.size() );

    emit modelCountChanged( mFindResult.size() );

}