/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmessagesortorder.h"
#include "qmessagesortorder_p.h"
#include "qmessage_p.h"

#define COMPARE(x,y) \
if ((x) < (y)) { \
    return true; \
} else if ((y) < (x)) { \
    return false; \
} else { \
    continue; \
}


QTM_BEGIN_NAMESPACE

QMessageSortOrderPrivate::QMessageSortOrderPrivate(QMessageSortOrder *sortOrder)
 : q_ptr(sortOrder),
   _valid(true)
{
}

QMessageSortOrder QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Field field, Qt::SortOrder order)
{
    QMessageSortOrder result;
    QPair<QMessageSortOrderPrivate::Field, Qt::SortOrder> fieldOrder(field, order);
    result.d_ptr->_fieldOrderList.append(fieldOrder);
    return result;
}

QMessageSortOrderPrivate* QMessageSortOrderPrivate::implementation(const QMessageSortOrder &sortOrder)

{
    return sortOrder.d_ptr;
}

bool QMessageSortOrderPrivate::lessThan(const QMessageSortOrder &sortOrder,
                                       const QMessage &message1, const QMessage &message2)
{
    QMessageSortOrderPrivate *d(sortOrder.d_ptr);

    QList<QPair<Field, Qt::SortOrder> >::iterator it(d->_fieldOrderList.begin());
    while (it != d->_fieldOrderList.end()) {
        Field field((*it).first);
        Qt::SortOrder order((*it).second);
        ++it;

        const QMessage *left;
        const QMessage *right;
        if (order == Qt::AscendingOrder) {
            left = &message1;
            right = &message2; 
        } else {
            left = &message2;
            right = &message1; 
        }

        switch (field)
        {
        case Type: COMPARE(left->type(), right->type())
        case Sender: COMPARE(QMessagePrivate::senderName(*left), QMessagePrivate::senderName(*right)); 
        case Recipients: {
            QString leftStr;
            QString rightStr;
            foreach (QMessageAddress a, left->to() + left->cc() + left->bcc()) {
                leftStr.append(a.addressee() + ";");
            }
            foreach (QMessageAddress a, right->to() + right->cc() + right->bcc()) {
                rightStr.append(a.addressee() + ";");
            }
            COMPARE(leftStr, rightStr)
        }
        case Subject: COMPARE(left->subject(), right->subject())
        case TimeStamp: COMPARE(left->date(), right->date())
        case ReceptionTimeStamp: COMPARE(left->receivedDate(), right->receivedDate())
        case Read: COMPARE(left->status() & QMessage::Read, right->status() & QMessage::Read)
        case HasAttachments: COMPARE(left->status() & QMessage::HasAttachments, right->status() & QMessage::HasAttachments)
        case Incoming: COMPARE(left->status() & QMessage::Incoming, right->status() & QMessage::Incoming)
        case Removed: COMPARE(left->status() & QMessage::Removed, right->status() & QMessage::Removed)
        case Priority: COMPARE(right->priority(), left->priority())
        case Size: COMPARE(left->size(), right->size())
        }
    }
    return false; // equality
}

QMessageSortOrder::QMessageSortOrder()
 : d_ptr(new QMessageSortOrderPrivate(this))
{
}

QMessageSortOrder::QMessageSortOrder(const QMessageSortOrder &other)
 : d_ptr(new QMessageSortOrderPrivate(this))
{
	this->operator=(other);
}

QMessageSortOrder::~QMessageSortOrder()
{
	delete d_ptr;
	d_ptr = 0;
}

QMessageSortOrder& QMessageSortOrder::operator=(const QMessageSortOrder& other)
{
	if (&other != this) {
		d_ptr->_fieldOrderList = other.d_ptr->_fieldOrderList;
		d_ptr->_valid = other.d_ptr->_valid;
	}
	
	return *this;
}

bool QMessageSortOrder::isEmpty() const
{
	return d_ptr->_fieldOrderList.isEmpty();
}

bool QMessageSortOrder::isSupported() const
{
	return d_ptr->_valid;
}

QMessageSortOrder QMessageSortOrder::operator+(const QMessageSortOrder& other) const
{
	QMessageSortOrder sum;
	sum.d_ptr->_fieldOrderList = d_ptr->_fieldOrderList + other.d_ptr->_fieldOrderList;
	return sum;
}

QMessageSortOrder& QMessageSortOrder::operator+=(const QMessageSortOrder& other)
{
	if (&other == this) {
		 return *this;
	}
	d_ptr->_fieldOrderList += other.d_ptr->_fieldOrderList;
	return *this;
}

bool QMessageSortOrder::operator==(const QMessageSortOrder& other) const
{
	return (d_ptr->_fieldOrderList == other.d_ptr->_fieldOrderList);
}

QMessageSortOrder QMessageSortOrder::byType(Qt::SortOrder order)
{
	QMessageSortOrder result(QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Type, order));
	return result;
}

QMessageSortOrder QMessageSortOrder::bySender(Qt::SortOrder order)
{
	QMessageSortOrder result(QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Sender, order));
	return result;
}

QMessageSortOrder QMessageSortOrder::byRecipients(Qt::SortOrder order)
{
	QMessageSortOrder result(QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Recipients, order));
	return result;
}

QMessageSortOrder QMessageSortOrder::bySubject(Qt::SortOrder order)
{
	QMessageSortOrder result(QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Subject, order));
	return result;
}

QMessageSortOrder QMessageSortOrder::byTimeStamp(Qt::SortOrder order)
{
	QMessageSortOrder result(QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::TimeStamp, order));
	return result;
}

QMessageSortOrder QMessageSortOrder::byReceptionTimeStamp(Qt::SortOrder order)
{
	QMessageSortOrder result(QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::ReceptionTimeStamp, order));
	return result;
}

QMessageSortOrder QMessageSortOrder::byStatus(QMessage::Status flag, Qt::SortOrder order)
{
	QMessageSortOrder result;
	switch (flag) {
	case QMessage::Read:
		result = QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Read, order);
		break;
	case QMessage::HasAttachments:
		result = QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::HasAttachments, order);
		break;
	case QMessage::Incoming:
		result = QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Incoming, order);
		break;
	case QMessage::Removed:
		result = QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Removed, order);
		break;
	}
	return result;
}

QMessageSortOrder QMessageSortOrder::byPriority(Qt::SortOrder order)
{
	QMessageSortOrder result(QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Priority, order));
	return result;
}

QMessageSortOrder QMessageSortOrder::bySize(Qt::SortOrder order)
{
	QMessageSortOrder result(QMessageSortOrderPrivate::from(QMessageSortOrderPrivate::Size, order));
	return result;
}

QTM_END_NAMESPACE
