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#include "qversitcontactexporter.h"

#include "qversitcontactexporter_p.h"

#include "qmobilityglobal.h"

#include <qcontact.h>

#include <qcontactdetail.h>

QTM_USE_NAMESPACE

/*!

  \deprecated

  \class QVersitContactExporterDetailHandler

  \brief The QVersitContactExporterDetailHandler class is an interface for clients wishing to

  implement custom export behaviour for certain contact details.

  This interface is replaced by QVersitContactExporterDetailHandlerV2.

  \sa QVersitContactExporter

 */

/*!

  \fn QVersitContactExporterDetailHandler::~QVersitContactExporterDetailHandler()

  Frees any memory in use by this handler.

 */

/*!

  \fn bool QVersitContactExporterDetailHandler::preProcessDetail(const QContact& contact, const QContactDetail& detail, QVersitDocument* document)

  Process \a detail and update \a document with the corresponding QVersitProperty(s).

  \a contact provides the context within which the detail was found.

  Returns true if the detail has been handled and requires no further processing, false otherwise.

  This function is called on every QContactDetail encountered during an export.  Supply this

  function and return true to implement custom export behaviour.

 */

/*!

  \fn bool QVersitContactExporterDetailHandler::postProcessDetail(const QContact& contact, const QContactDetail& detail, bool alreadyProcessed, QVersitDocument* document)

  Process \a detail and update \a document with the corresponding QVersitProperty(s).

  \a contact provides the context within which the detail was found.

  \a alreadyProcessed is true if the detail has already been processed either by

  \l preProcessDetail() or by QVersitContactExporter itself.

  Returns true if the detail has been handled, false otherwise.

  This function is called on every \l QContactDetail encountered during an export.  This can be

  used to implement support for QContactDetails not supported by QVersitContactExporter.

 */

/*!

  \class QVersitContactExporterDetailHandlerV2

  \brief The QVersitContactExporterDetailHandlerV2 class is an interface for clients wishing to

  implement custom export behaviour for certain contact details.

  This interface supercedes QVersitContactImporterPropertyHandler.

  \sa QVersitContactExporter

 */

/*!

  \fn QVersitContactExporterDetailHandlerV2::~QVersitContactExporterDetailHandlerV2()

  Frees any memory in use by this handler.

 */

/*!

  Process \a detail and provide a list of updated \l{QVersitProperty}{QVersitProperties} by

  modifying the \a toBeRemoved and \a toBeAdded lists.  

  This function is called on every QContactDetail encountered during an export, after the detail has

  been processed by the QVersitContactExporter.  An implementation of this function can be made to

  provide support for QContactDetails not supported by QVersitContactExporter.

  The supplied \a contact is the container for the \a detail.  \a processedFields contains a list of

  \a toBeRemoved and \a toBeAdded are initially filled with a list of properties that the exporter

  will remove from and add to the document.  These lists can be modified (by removing, modifying or

  adding properties) by the handler to control the changes that will actually be made to the

  document.  If a property is to be modified in the document, the old version will appear in the

  After the handler returns control back to the exporter, the properties in the \a toBeRemoved

  list will be removed and the properties in the \a toBeAdded list will be appended to the document.

 */

/*!

  \fn void QVersitContactExporterDetailHandlerV2::contactProcessed(const QContact& contact, QVersitDocument* document)

  Perform any final processing on the \a document generated by the \a contact.  This can be

  implemented by the handler to clear any internal state before moving onto the next contact.

  This function is called after all QContactDetails have been handled by the

  QVersitContactExporter.

*/

/*!

  \class QVersitContactExporter

  \brief The QVersitContactExporter class converts \l {QContact}{QContacts} into

  \l {QVersitDocument}{QVersitDocuments}.

  \ingroup versit

  This class is used to convert lists of \l {QContact}{QContacts} (which may be stored in a

  QContactManager) into lists of \l {QVersitDocument}{QVersitDocuments} (which may be written to

  an I/O device using QVersitReader.  Unless there is an error, there is a one-to-one mapping

  between contacts and Versit documents.  The exporter can be extended by clients by associating

  resource and detail handlers.

  A \l QVersitResourceHandler is associated with the exporter to supply the behaviour for loading

  files from persistent storage.  By default, this is set to a \l QVersitDefaultResourceHandler,

  which supports basic resource loading from the file system.  An alternative resource handler

  can be specified with setResourceHandler().

  By associating a \l QVersitContactExporterDetailHandlerV2 with the exporter using

  setDetailHandler(), the client can pass in a handler to override the processing of details and/or

  \section1 Exporting group relationships

  The exporter does not handle QContactRelationships at all.

  Some managers use the \l{QContactRelationship::HasMember}{HasMember} QContactRelationship along

  with contacts of type \l{QContactType::TypeGroup}{TypeGroup} to indicate categorization of

  contacts.  In vCard, categorization is represented by the CATEGORIES property, which has

  semantics most similar to the QContactTag detail.  For contact manager backends that supports

  groups but not QContactTag, if the categorization information needs to be retained through

  CATEGORIES vCard properties, extra work can be done to convert from group relationships to

  QContactTag before passing the contact list to the exporter.  Below is some example code that

  does this translation.

  \snippet ../../doc/src/snippets/qtversitdocsample/qtversitdocsample.cpp Export relationship example

  \sa QVersitDocument, QVersitProperty, QVersitResourceHandler, QVersitContactExporterDetailHandlerV2

 */

/*!

  \enum QVersitContactExporter::Error

  This enum specifies an error that occurred during the most recent call to exportContacts()

  \value NoError The most recent operation was successful

  \value EmptyContactError One of the contacts was empty

  \value NoNameError One of the contacts has no QContactName field

  */

/*!

 * Constructs a new contact exporter

 */

QVersitContactExporter::QVersitContactExporter()

    : d(new QVersitContactExporterPrivate())

{

}

/*!

 * Frees any memory in use by this contact exporter.

 */

QVersitContactExporter::~QVersitContactExporter()

{

    delete d;

}

/*!

 * Converts \a contacts into a list of corresponding QVersitDocuments, using the format given by

 * \a versitType.

 * Returns true on success.  If any of the contacts could not be exported, false is returned and

 * errors() will return a list describing the errors that occurred.  The successfully exported

 * documents will still be available via documents().

 */

bool QVersitContactExporter::exportContacts(

    const QList<QContact>& contacts,

    QVersitDocument::VersitType versitType)

{

    int contactIndex = 0;

    d->mDocuments.clear();

    d->mErrors.clear();

    bool ok = true;

    foreach (const QContact& contact, contacts) {

        QVersitDocument versitDocument;

        versitDocument.setType(versitType);

        QVersitContactExporter::Error error;

        if (d->exportContact(contact, versitDocument, &error)) {

            d->mDocuments.append(versitDocument);

        } else {

            d->mErrors.insert(contactIndex, error);

            ok = false;

        }

        contactIndex++;

    }

    return ok;

}

/*!

 * Returns the documents exported in the most recent call to exportContacts().

 *

 * \sa exportContacts()

 */

QList<QVersitDocument> QVersitContactExporter::documents() const

{

    return d->mDocuments;

}

/*!

 * Returns the map of errors encountered in the most recent call to exportContacts().  The key is

 * the index into the input list of contacts and the value is the error that occurred on that

 * contact.

 *

 * \sa exportContacts()

 */

QMap<int, QVersitContactExporter::Error> QVersitContactExporter::errors() const

{

    return d->mErrors;

}

/*!

 * \deprecated

 * Sets \a handler to be the handler for processing QContactDetails, or 0 to have no handler.

 *

 * Does not take ownership of the handler.  The client should ensure the handler remains valid for

 * the lifetime of the exporter.  This function is used for version 1 handlers.

 *

 * Only one detail handler can be set.  If another detail handler (of any version) was

 * previously set, it will no longer be associated with the exporter.

 */

void QVersitContactExporter::setDetailHandler(QVersitContactExporterDetailHandler* handler)

{

    d->mDetailHandlerVersion = 1;

    d->mDetailHandler = handler;

    d->mDetailHandler2 = 0;

}

/*!

 * Sets \a handler to be the handler for processing QContactDetails, or 0 to have no handler.

 *

 * Does not take ownership of the handler.  The client should ensure the handler remains valid for

 * the lifetime of the exporter.  This function is used for version 2 and higher handlers.

 *

 * Only one detail handler can be set.  If another detail handler (of any version) was

 * previously set, it will no longer be associated with the exporter.

 */

void QVersitContactExporter::setDetailHandler(QVersitContactExporterDetailHandlerV2* handler)

{

    d->mDetailHandler = 0;

    d->mDetailHandler2 = handler;

}

/*!

 * \deprecated

 * Gets the handler for processing QContactDetails.

 */

QVersitContactExporterDetailHandler* QVersitContactExporter::detailHandler() const

{

    return d->mDetailHandler;

}

/*!

 * Sets \a handler to be the handler to load files with, or 0 to have no handler.

 *

 * Does not take ownership of the handler.  The client should ensure the handler remains valid for

 * the lifetime of the exporter.

 */

void QVersitContactExporter::setResourceHandler(QVersitResourceHandler* handler)

{

    d->mResourceHandler = handler;

}

/*!

 * Returns the associated resource handler.

 */

QVersitResourceHandler* QVersitContactExporter::resourceHandler() const

{

    return d->mResourceHandler;

}