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#include "qmessagecontentcontainer.h"

#include "qmessagecontentcontainer_p.h"

#include "winhelpers_p.h"

#include <QTextCodec>

#include <QDebug>

QTM_BEGIN_NAMESPACE

namespace WinHelpers {

QMessageContentContainer fromLocator(const WinHelpers::AttachmentLocator &loc)

{

    return QMessageContentContainerPrivate::from(loc.first, loc.second);

}

}

namespace {

QByteArray attachmentContent(const QMessageId &id, ULONG number)

{

    QByteArray result;

    QMessageManager::Error error(QMessageManager::NoError);

    MapiSessionPtr session(MapiSession::createSession(&error));

    if (session && session->isValid()) {

        result = session->attachmentData(&error, id, number);

    }

    return result;

}

QString attachmentTextContent(const QMessageId &id, ULONG number, const QByteArray &charset)

{

    QString result;

    QMessageManager::Error error(QMessageManager::NoError);

    MapiSessionPtr session(MapiSession::createSession(&error));

    if (session && session->isValid()) {

        QByteArray data = session->attachmentData(&error, id, number);

        if (error == QMessageManager::NoError) {

            // Convert attachment data to string form

            QTextCodec *codec;

            if (!charset.isEmpty()) {

                codec = QTextCodec::codecForName(charset);

            } else {

                codec = QTextCodec::codecForLocale();

            }

            if (codec) {

                result = codec->toUnicode(data);

            }

        }

    }

    return result;

}

}

QMessageContentContainer::QMessageContentContainer()

    : d_ptr(new QMessageContentContainerPrivate(this))

{

}

QMessageContentContainer::QMessageContentContainer(const QMessageContentContainer &other)

    : d_ptr(new QMessageContentContainerPrivate(this))

{

     this->operator=(other);

}

QMessageContentContainer& QMessageContentContainer::operator=(const QMessageContentContainer& other)

{

    if (&other != this) {

        *d_ptr = *other.d_ptr;

    }

    return *this;

}

QMessageContentContainer::~QMessageContentContainer()

{

    delete d_ptr;

}

QByteArray QMessageContentContainer::contentType() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensureBodyPresent(d_ptr->_message);

    }

    return d_ptr->_type;

}

QByteArray QMessageContentContainer::contentSubType() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensureBodyPresent(d_ptr->_message);

    }

    return d_ptr->_subType;

}

QByteArray QMessageContentContainer::contentCharset() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensureBodyPresent(d_ptr->_message);

    }

    return d_ptr->_charset;

}

QByteArray QMessageContentContainer::suggestedFileName() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensureBodyPresent(d_ptr->_message);

    }

    return d_ptr->_name;

}

bool QMessageContentContainer::isContentAvailable() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensureBodyPresent(d_ptr->_message);

        d_ptr->_message->d_ptr->ensureAttachmentsPresent(d_ptr->_message);

    }

    //if we are a container, then availabilty depends on the availability of subparts

    if(!contentIds().isEmpty())

    {

        bool available = true;

        foreach(const QMessageContentContainer& c, d_ptr->_attachments)

            available &= c.isContentAvailable();

        return available;

    }

    return d_ptr->_available;

}

int QMessageContentContainer::size() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensurePropertiesPresent(d_ptr->_message);

    }

    return d_ptr->_size;

}

QString QMessageContentContainer::textContent() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensureBodyPresent(d_ptr->_message);

    }

    if (d_ptr->_textContent.isEmpty() && d_ptr->_attachmentNumber != 0) {

        const_cast<QString&>(d_ptr->_textContent) = attachmentTextContent(d_ptr->_containingMessageId, d_ptr->_attachmentNumber, d_ptr->_charset);

    }

    if (!d_ptr->_textContent.isEmpty()) {

        return d_ptr->_textContent;

    }

    QTextCodec *codec = QTextCodec::codecForName(d_ptr->_charset.data());

    if (codec) {

        return codec->toUnicode(d_ptr->_content);

    } else {

        return QString::fromLatin1(d_ptr->_content);

    }

}

QByteArray QMessageContentContainer::content() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensureBodyPresent(d_ptr->_message);

    }

    if (d_ptr->_content.isEmpty() && d_ptr->_attachmentNumber != 0) {

        const_cast<QByteArray&>(d_ptr->_content) = attachmentContent(d_ptr->_containingMessageId, d_ptr->_attachmentNumber);

    }

    return d_ptr->_content;

}

void QMessageContentContainer::writeTextContent(QTextStream& out) const

{

    out << textContent();

}

void QMessageContentContainer::writeContent(QDataStream& out) const

{

    QByteArray data(content());

    out.writeRawData(data.constData(), data.length());

}

QMessageContentContainerIdList QMessageContentContainer::contentIds() const

{

    QMessageContentContainerIdList ids;

    if (d_ptr->isMessage()) {

        foreach (const QMessageContentContainer &container, d_ptr->_attachments) {

            ids.append(container.d_ptr->_id);

        }

    }

    return ids;

}

QMessageContentContainer QMessageContentContainer::find(const QMessageContentContainerId &id) const

{

    if (d_ptr->isMessage()) {

        if (const QMessageContentContainer *container = d_ptr->attachment(id)) {

            return *container;

        }

    }

    return QMessageContentContainer();

}

bool QMessageContentContainer::contains(const QMessageContentContainerId &id) const

{

    if (d_ptr->isMessage()) {

        return (d_ptr->attachment(id) != 0);

    }

    return false;

}

QString QMessageContentContainer::headerFieldValue(const QByteArray &name) const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensurePropertiesPresent(d_ptr->_message);

    }

    QMultiMap<QByteArray, QString>::const_iterator it = d_ptr->_header.find(name);

    if (it != d_ptr->_header.end()) {

        return it.value();

    }

    return QString();

}

QStringList QMessageContentContainer::headerFieldValues(const QByteArray &name) const

{

    QStringList values;

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensurePropertiesPresent(d_ptr->_message);

    }

    QMultiMap<QByteArray, QString>::const_iterator it = d_ptr->_header.find(name);

    while ((it != d_ptr->_header.end()) && (it.key() == name)) {

        values.append(it.value());

        ++it;

    }

    return values;

}

QList<QByteArray> QMessageContentContainer::headerFields() const

{

    if (d_ptr->isMessage()) {

        d_ptr->_message->d_ptr->ensurePropertiesPresent(d_ptr->_message);

    }

    return d_ptr->_header.keys();

}

void QMessageContentContainer::setDerivedMessage(QMessage *derived)

{

    d_ptr->setDerivedMessage(derived);

}

QTM_END_NAMESPACE