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****************************************************************************/

#include "qmessageservice.h"

#include "qmessageservice_maemo_p.h"

#include "maemohelpers_p.h"

#include "modestengine_maemo_p.h"

#include "telepathyengine_maemo_p.h"

#include "eventloggerengine_maemo_p.h"

QTM_BEGIN_NAMESPACE

QMessageServicePrivate::QMessageServicePrivate(QMessageService* parent)

 : q_ptr(parent),

   _state(QMessageService::InactiveState),

   _error(QMessageManager::NoError),

   _active(false), _actionId(-1),

   _pendingRequestCount(0)

{

}

QMessageServicePrivate::~QMessageServicePrivate()

{

}

QMessageServicePrivate* QMessageServicePrivate::implementation(const QMessageService &service)

{

    return service.d_ptr;

}

bool QMessageServicePrivate::queryMessages(QMessageService &messageService,

                                           const QMessageFilter &filter,

                                           const QMessageSortOrder &sortOrder,

                                           uint limit, uint offset,

                                           EnginesToCall enginesToCall)

{

    if (_active) {

        return false;

    }

    _filter = filter;

    MessagingHelper::handleNestedFiltersFromMessageFilter(_filter);

    _ids.clear();

    _sorted = true;

    _filtered = true;

    _active = true;

    _error = QMessageManager::NoError;

    _pendingRequestCount = 0;

    if (enginesToCall & EnginesToCallTelepathy) {

        QMetaObject::invokeMethod(this, "messagesFoundSlot", Qt::QueuedConnection);

        _pendingRequestCount++;

    }

    if (enginesToCall & EnginesToCallModest) {

        if (ModestEngine::instance()->queryMessages(messageService, _filter, sortOrder, limit, offset)) {

            _pendingRequestCount++;

        }

    } 

    if (_pendingRequestCount > 0) {

        _sortOrder = sortOrder;

        _limit = limit;

        _offset = offset;

        stateChanged(QMessageService::ActiveState);

    } else {

        _filter = QMessageFilter();

        setFinished(false);

    }

    return _active;

}

bool QMessageServicePrivate::queryMessages(QMessageService &messageService,

                                           const QMessageFilter &filter,

                                           const QString &body,

                                           QMessageDataComparator::MatchFlags matchFlags,

                                           const QMessageSortOrder &sortOrder,

                                           uint limit, uint offset,

                                           EnginesToCall enginesToCall)

{

    if (_active) {

        return false;

    }

    _filter = filter;

    MessagingHelper::handleNestedFiltersFromMessageFilter(_filter);

    _ids.clear();

    _sorted = true;

    _filtered = true;

    _active = true;

    _error = QMessageManager::NoError;

    _pendingRequestCount = 0;

    if (enginesToCall & EnginesToCallTelepathy) {

        _ids= EventLoggerEngine::instance()->filterAndOrderMessages(filter,sortOrder,body,matchFlags); 

        QMetaObject::invokeMethod(this, "messagesFoundSlot", Qt::QueuedConnection);

        _pendingRequestCount++;

    }

    if (enginesToCall & EnginesToCallModest) {

        if (ModestEngine::instance()->queryMessages(messageService, _filter, body, matchFlags,

                                                    sortOrder, limit, offset)) {

            _pendingRequestCount++;

        }

    }

    if (_pendingRequestCount > 0) {

        _sortOrder = sortOrder;

        _limit = limit;

        _offset = offset;

        stateChanged(QMessageService::ActiveState);

    } else {

        _filter = QMessageFilter();

        setFinished(false);

    }

    return _active;

}

bool QMessageServicePrivate::countMessages(QMessageService &messageService,

                                           const QMessageFilter &filter,

                                           EnginesToCall enginesToCall)

{

    if (_active) {

        return false;

    }

    QMessageFilter handledFilter = filter;

    MessagingHelper::handleNestedFiltersFromMessageFilter(handledFilter);

    _count = 0;

    _active = true;

    _error = QMessageManager::NoError;

    _pendingRequestCount = 0;

    //TODO: SMS count support

    //if (enginesToCall & EnginesToCallTelepathy) {

    //}

    if (enginesToCall & EnginesToCallModest) {

        if (ModestEngine::instance()->countMessages(messageService, handledFilter)) {

            _pendingRequestCount++;

        }

    }

    if (_pendingRequestCount > 0) {

        stateChanged(QMessageService::ActiveState);

    } else {

        setFinished(false);

    }

    return _active;

}

void QMessageServicePrivate::setFinished(bool successful)

{

    if (!successful && _pendingRequestCount > 0) {

        _pendingRequestCount--;

    }

    if (_pendingRequestCount == 0) {

        if (!successful && (_error == QMessageManager::NoError)) {

            // We must report an error of some sort

            _error = QMessageManager::RequestIncomplete;

        }

        _active = false;

        stateChanged(QMessageService::FinishedState);

    }

}

void QMessageServicePrivate::stateChanged(QMessageService::State state)

{

    _state = state;

    emit q_ptr->stateChanged(_state);

}

void QMessageServicePrivate::messagesFound(const QMessageIdList &ids, bool isFiltered, bool isSorted)

{

    _pendingRequestCount--;

    if (!isFiltered) {

        _filtered = false;

    }

    if (!isSorted) {

        _sorted = false;

    } else {

        if ((ids.count() > 0) && (_ids.count() > 0)) {

            _sorted = false;

        }

    }

    _ids.append(ids);

    if (_pendingRequestCount == 0) {

        if (!_filtered) {

            MessagingHelper::filterMessages(_ids, _filter);

        }

        if (!_sorted) {

            MessagingHelper::orderMessages(_ids, _sortOrder);

        }

        MessagingHelper::applyOffsetAndLimitToMessageIdList(_ids, _limit, _offset);

        ModestEngine::instance()->clearHeaderCache();

        emit q_ptr->messagesFound(_ids);

        setFinished(true);

        _ids.clear();

        _filter = QMessageFilter();

        _sortOrder = QMessageSortOrder();

    }

}

void QMessageServicePrivate::messagesCounted(int count)

{

    _pendingRequestCount--;

    _count += count;

    if (_pendingRequestCount == 0) {

        ModestEngine::instance()->clearHeaderCache();

        emit q_ptr->messagesCounted(_count);

        setFinished(true);

        _count = 0;

    }

}

void QMessageServicePrivate::progressChanged(uint value, uint total)

{

    emit q_ptr->progressChanged(value, total);

}

void QMessageServicePrivate::messagesFoundSlot()

{

    messagesFound(QMessageIdList(), true, false);

}

void QMessageServicePrivate::messagesCountedSlot()

{

    messagesCounted(0);

}

QMessageService::QMessageService(QObject *parent)

 : QObject(parent),

   d_ptr(new QMessageServicePrivate(this))

{

    EventLoggerEngine::instance();

    TelepathyEngine::instance();

}

QMessageService::~QMessageService()

{

}

bool QMessageService::queryMessages(const QMessageFilter &filter, const QMessageSortOrder &sortOrder, uint limit, uint offset)

{

    return d_ptr->queryMessages(*this, filter, sortOrder, limit, offset);

}

bool QMessageService::queryMessages(const QMessageFilter &filter, const QString &body, QMessageDataComparator::MatchFlags matchFlags, const QMessageSortOrder &sortOrder, uint limit, uint offset)

{

    return d_ptr->queryMessages(*this, filter, body, matchFlags, sortOrder, limit, offset);

}

bool QMessageService::countMessages(const QMessageFilter &filter)

{

    return d_ptr->countMessages(*this, filter);

}

bool QMessageService::send(QMessage &message)

{

    if (d_ptr->_active) {

        return false;

    }

    d_ptr->_active = true;

    d_ptr->_error = QMessageManager::NoError;

    bool retVal = true;

    d_ptr->_state = QMessageService::ActiveState;

    emit stateChanged(d_ptr->_state);

    QMessageAccountId accountId = message.parentAccountId();

    QMessage::Type msgType = QMessage::NoType;

    // Check message type

    if (message.type() == QMessage::AnyType || message.type() == QMessage::NoType) {

        QMessage::TypeFlags types = QMessage::NoType;

        if (accountId.isValid()) {

            // ParentAccountId was defined => Message type can be read

            // from parent account

            QMessageAccount account = QMessageAccount(accountId);

            QMessage::TypeFlags types = account.messageTypes();

            if (types & QMessage::Sms) {

                msgType = QMessage::Sms;

            } else if (account.messageTypes() & QMessage::InstantMessage) {

                msgType = QMessage::InstantMessage;

            } else if (types & QMessage::Mms) {

                msgType = QMessage::Mms;

            } else if (types & QMessage::Email) {

                msgType = QMessage::Email;

            }

        }

        if (msgType == QMessage::NoType) {

            d_ptr->_error = QMessageManager::ConstraintFailure;

            retVal = false;

        }

    }

    if (retVal) {

        // Check account

        if (!accountId.isValid()) {

            accountId = QMessageAccount::defaultAccount(message.type());

            if (!accountId.isValid()) {

                d_ptr->_error = QMessageManager::InvalidId;

                retVal = false;

            }

        }

    }

    QMessageAccount account(accountId);

    if (retVal) {

        // Check account/message type compatibility

        if (!(account.messageTypes() & message.type()) && (msgType == QMessage::NoType)) {

            d_ptr->_error = QMessageManager::ConstraintFailure;

            retVal = false;

        }

    }

    if (retVal) {

        // Check recipients

        QMessageAddressList recipients = message.to() + message.bcc() + message.cc();

        if (recipients.isEmpty()) {

            d_ptr->_error = QMessageManager::ConstraintFailure;

            retVal = false;

        }

    }

    if (retVal) {

        QMessage outgoing(message);

        // Set default account if unset

        if (!outgoing.parentAccountId().isValid()) {

            outgoing.setParentAccountId(accountId);

        }

        if (account.messageTypes() & QMessage::Sms) {

            retVal = TelepathyEngine::instance()->sendMessage(message);

        } else if (account.messageTypes() & QMessage::InstantMessage) {

            retVal = TelepathyEngine::instance()->sendMessage(message);

        } else if (account.messageTypes() & QMessage::Mms) {

            d_ptr->_error = QMessageManager::NotYetImplemented;

            qWarning() << "QMessageService::send not yet implemented for MMS";

            retVal = false;

        } else if (account.messageTypes() & QMessage::Email) {

            retVal = ModestEngine::instance()->sendEmail(message);

        }

    }

    d_ptr->setFinished(retVal);

    return retVal;

}

bool QMessageService::compose(const QMessage &message)

{

    if (d_ptr->_active) {

        return false;

    }

    d_ptr->_active = true;

    d_ptr->_error = QMessageManager::NoError;

    d_ptr->_state = QMessageService::ActiveState;

    emit stateChanged(d_ptr->_state);

    } else if (message.type() == QMessage::Mms) {

        d_ptr->_error = QMessageManager::NotYetImplemented; //TODO:

        qWarning() << "QMessageService::compose not yet implemented for MMS";

        retVal = false;

    } else if (message.type() == QMessage::Email) {

        retVal = ModestEngine::instance()->composeEmail(message);

    }

    return retVal;

}

bool QMessageService::retrieveHeader(const QMessageId& id)

{

    Q_UNUSED(id)

    return false; // stub

}

bool QMessageService::retrieveBody(const QMessageId& id)

{

    Q_UNUSED(id)

    return false; // stub

}

bool QMessageService::retrieve(const QMessageId &messageId, const QMessageContentContainerId& id)

{

    Q_UNUSED(messageId)

    Q_UNUSED(id)

    return false; // stub

}

bool QMessageService::show(const QMessageId& id)

{

    if (d_ptr->_active) {