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#include "qmessageservice.h"

#include "modestengine_maemo_p.h"

#include "telepathyengine_maemo_p.h"

#include <QDebug>

QTM_BEGIN_NAMESPACE

class QMessageServicePrivate : public QObject

{

public:

    QMessageServicePrivate(QMessageService* parent);

    ~QMessageServicePrivate();

    void setFinished(bool successful);

public:

    QMessageService* q_ptr;

    QMessageService::State _state;

    bool _active;

    QMessageManager::Error _error;

};

QMessageServicePrivate::QMessageServicePrivate(QMessageService* parent)

 : q_ptr(parent),

   _state(QMessageService::InactiveState),

   _active(false)

{

}

QMessageServicePrivate::~QMessageServicePrivate()

{

}

QMessageService::QMessageService(QObject *parent)

 : QObject(parent),

   d_ptr(new QMessageServicePrivate(this))

{

}

void QMessageServicePrivate::setFinished(bool successful)

{

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

        // We must report an error of some sort

        _error = QMessageManager::RequestIncomplete;

    }

    _state = QMessageService::FinishedState;

    emit q_ptr->stateChanged(_state);

    _active = false;

}

QMessageService::~QMessageService()

{

}

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

{

    if (d_ptr->_active) {

        return false;

    }

    d_ptr->_active = true;

    d_ptr->_error = QMessageManager::NoError;

    if (ModestEngine::instance()->queryMessages(*this, filter, sortOrder, limit, offset)) {

        d_ptr->_state = QMessageService::ActiveState;

        emit stateChanged(d_ptr->_state);

    } else {

        d_ptr->setFinished(false);

    }

    return d_ptr->_active;

}

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

{

    if (d_ptr->_active) {

        return false;

    }

    d_ptr->_active = true;

    d_ptr->_error = QMessageManager::NoError;

    if (ModestEngine::instance()->queryMessages(*this, filter, body, matchFlags, sortOrder, limit, offset)) {

        d_ptr->_state = QMessageService::ActiveState;

        emit stateChanged(d_ptr->_state);

    } else {

        d_ptr->setFinished(false);

    }

    return d_ptr->_active;

}

bool QMessageService::countMessages(const QMessageFilter &filter)

{

    if (d_ptr->_active) {

        return false;

    }

    d_ptr->_active = true;

    d_ptr->_error = QMessageManager::NoError;

    if (ModestEngine::instance()->countMessages(*this, filter)) {

        d_ptr->_state = QMessageService::ActiveState;

        emit stateChanged(d_ptr->_state);

    } else {

        d_ptr->setFinished(false);

    }

    return d_ptr->_active;

}

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);

    // Check message type

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

        d_ptr->_error = QMessageManager::ConstraintFailure;

        retVal = false;

    }

    QMessageAccountId accountId = message.parentAccountId();

    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())) {

            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;

            return false;

        }

    }

    QMessage outgoing(message);

    // Set default account if unset

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

        outgoing.setParentAccountId(accountId);

    }

    if (retVal) {

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

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

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

            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;

    bool retVal = true;

    d_ptr->_state = QMessageService::ActiveState;

    emit stateChanged(d_ptr->_state);

    if (message.type() == QMessage::Sms) {

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

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

        retVal = false;

    } 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);

    }

    d_ptr->setFinished(retVal);

    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)

{

    Q_UNUSED(id)

    return false; // stub

}

bool QMessageService::exportUpdates(const QMessageAccountId &id)

{

    Q_UNUSED(id)

    return false; // stub

}

QMessageService::State QMessageService::state() const

{

    return InactiveState; // stub

}

void QMessageService::cancel()

{

}

QMessageManager::Error QMessageService::error() const

{

    return QMessageManager::NoError;

}

QTM_END_NAMESPACE