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#include <QSet>

#include <QDebug>

#include "qcontact.h"

#include "qcontact_p.h"

#include "qcontactdetail_p.h"

#include "qcontactmanager_p.h"

QTM_BEGIN_NAMESPACE

/*!

  \class QContact

  \brief The QContact class represents an addressbook contact.

  \ingroup contacts-main

  Individual contacts, groups, and other types of contacts are represented with

  a QContact object.  In addition to the type, a QContact consists of information

  that belongs to the contact and some information about the relationships that the

  contact has.

  A QContact object has a collection of details (like a name, phone numbers and

  email addresses).  Each detail (which can have multiple fields) is stored

  in an appropriate subclass of QContactDetail, and the QContact allows

  retrieving these details in various ways.

  A QContact may have zero or more relationships with other contacts.  For example,

  a group contact would have a \c "HasMember" relationship with the QContacts that

  are its members.  Spouses, managers and assistants can also be represented this

  way.

  A QContact instance represents the in-memory version of an addressbook contact,

  and has no tie to a specific QContactManager.  It is possible for the contents

  of a QContact to change independently of the contents that are stored persistently

  in a QContactManager.  A QContact has an ID associated with it when it is first

  retrieved from a QContactManager, or after it has been first saved, and this allows

  clients to track changes using the signals in QContactManager.

  A QContact has a number of mandatory details:

  \list

   \o A QContactType, with the type of the contact (individual contact, group etc)

   \o A QContactDisplayLabel, representing the text to display

  \endlist

  If you have edited the contents of a QContact (via saving or removing details),

  you will need to ask a specific QContactManager for the new display label for the

  contact, since system settings (like the order of first or last names) can vary

  between managers.

  \sa QContactManager, QContactDetail

 */

/*!

 * \fn QList<T> QContact::details() const

 * Returns a list of details of the template parameter type.  The type must be

 * a subclass of QContactDetail.

 *

 * For example:

 *  \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 3

 */

/*!

 * \fn QList<T> QContact::details(const QString& fieldName, const QString& value) const

 * Returns a list of details of the template parameter type which have field called \a fieldName, with matching \a value.

 * The type must be a subclass of QContactDetail.

 *

 * For example:

 *  \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 4

 */

/*!

 * \fn T QContact::detail() const

 * Returns the first detail of the template parameter type, as returned by the template details() function.

 * The type must be a subclass of QContactDetail.

 */

/*!

 * \fn QContact::operator!=(const QContact &other) const

 * Returns true if this contacts id or details are different to those of the \a other contact.

 */

/*!

    Construct an empty contact.

    The contact will have an empty display label, an empty id, and have type \l QContactType::TypeContact.

    The isEmpty() function will return true.

*/

QContact::QContact()

    : d(new QContactData)

{

    clearDetails();

}

/*! Initializes this QContact from \a other */

QContact::QContact(const QContact& other)

    : d(other.d)

{

}

/*!

 * Returns true if this QContact is empty, false if not.

 *

 * An empty QContact has an empty label and no extra details.

 * The type of the contact is irrelevant.

 */

bool QContact::isEmpty() const

{

    /* Every contact has a display label field.. */

    if (d->m_details.count() > 2)

        return false;

    /* We know we have two details (a display label and a type) */

    const QContactDisplayLabel& label = d->m_details.at(0);

    return label.label().isEmpty();

}

/*!

 * Removes all details of the contact.

 * This function does not modify the id or type of the contact.

 * Calling isEmpty() after calling this function will return true.

 */

void QContact::clearDetails()

{

    d->m_details.clear();

    // insert the contact's display label detail.

    QContactDisplayLabel contactLabel;

    contactLabel.setValue(QContactDisplayLabel::FieldLabel, QString());

    contactLabel.d->m_id = 1;

    contactLabel.d->m_access = QContactDetail::Irremovable | QContactDetail::ReadOnly;

    d->m_details.insert(0, contactLabel);

    // and the contact type detail.

    QContactType contactType;

    contactType.setType(QContactType::TypeContact);

    contactType.d->m_id = 2;

    contactType.d->m_access = QContactDetail::Irremovable;

    d->m_details.insert(1, contactType);

}

/*! Replace the contents of this QContact with \a other */

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

{

    d = other.d;

    return *this;

}

/*! Frees the memory used by this QContact */

QContact::~QContact()

{

}

/*!

    Returns the QContactId that identifies this contact.

    This may have been set when the contact was retrieved from

    a particular manager, or when the contact was first saved

    in a manager.  The QContactId is only valid with a specific

    manager.  See \l QContactManager::saveContact() for more

    information.

    \sa localId()

 */

QContactId QContact::id() const

{

    return d->m_id;

}

/*!

    Returns the QContactLocalId that identifies this contact within its manager

    This may have been set when the contact was retrieved from

    a particular manager, or when the contact was first saved

    in a manager.  The QContactLocalId is associated with a specific

    manager, but other contacts with the same local id might exist in

    different managers.

    See \l QContactManager::saveContact() for more

    information.

   \sa id()

*/

QContactLocalId QContact::localId() const

{

    return d->m_id.localId();

}

/*!

 * Returns the type of the contact.  Every contact has exactly one type which

 * is either set manually (by saving a modified copy of the QContactType

 * in the contact, or by calling \l setType()) or synthesized automatically.

 *

 * \sa setType()

 */

QString QContact::type() const

{

    // type is detail 1

    QString type = d->m_details.at(1).value(QContactType::FieldType);

    if (type.isEmpty())

        return QString(QLatin1String(QContactType::TypeContact));

    return type;

}

/*!

 * Sets the type of the contact to the given \a type.

 */

void QContact::setType(const QString& type)

{

    // type is detail 1

    QContactType newType;

    newType.setType(type);

    newType.d->m_access = QContactDetail::Irremovable;

    d->m_details[1] = newType;

}

/*!

 * Sets the type of the contact to the given \a type detail.

 */

void QContact::setType(const QContactType& type)

{

    // type is detail 1

    d->m_details[1] = type;

    d->m_details[1].d->m_access = QContactDetail::Irremovable;

}

/*!

 * Returns the display label of this contact.

 *

 * A contact which has been retrieved from a manager will have a display label set when

 * the contact is retrieved.

 *

 * The display label is usually read-only, since some managers do not support arbitrary

 * labels (see also \l QContactName::setCustomLabel()).  If you modify the contact in a way

 * that would affect the display label, you can call QContactManager::synthesizeContactDisplayLabel() to get an

 * up-to-date display label.

 *

 * See the following example for more information:

 * \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp Updating the display label of a contact

 *

 * \sa QContactManager::synthesizeContactDisplayLabel()

 */

QString QContact::displayLabel() const

{

    return d->m_details.at(0).value(QContactDisplayLabel::FieldLabel);

}

/*!

 * Sets the id of this contact to \a id.

 *

 * Note that this only affects this object, not any corresponding structures stored

 * by a QContactManager.

 *

 * If you change the id of a contact and save the contact

 * in a manager, the previously existing contact will still

 * exist.  You can do this to create copies (possibly modified)

 * of an existing contact, or to save a contact in a different manager.

 *

 * \sa QContactManager::saveContact()

 */

void QContact::setId(const QContactId& id)

{

    d->m_id = id;

}

/*!

    \fn QContactDetail QContact::detail(const QLatin1Constant& definitionName) const

    Returns the first detail stored in the contact which with the given \a definitionName.

    The \a definitionName argument is typically the detail name constant provided by a

    specific subclass of QContactDetail.  For example:

    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 0

    It would usually be more convenient to use the template version of this function, in

    the following manner:

    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 1

*/

/*!

    \fn QList<QContactDetail> QContact::details(const QLatin1Constant& definitionName) const

    Returns a list of details of the given \a definitionName.

    The \a definitionName argument is typically the detail name constant provided by a

    specific subclass of QContactDetail.  For example:

    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 2

    It would usually be more convenient to use the template version of this function, in

    the following manner:

    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 3

*/

/*!

    \fn QList<QContactDetail> QContact::details(const QLatin1Constant& definitionName, const QLatin1Constant& fieldName, const QString& value)

    Returns a list of details of the given \a definitionName, with fields named \a fieldName and with value \a value.

*/

/*!

    \fn QList<T> QContact::details(const char* fieldName, const QString& value) const

    \internal

    Returns a list of details of the template type which match the \a fieldName and \a value criteria

*/

/*!

    Returns the first detail stored in the contact with the given \a definitionName

*/

QContactDetail QContact::detail(const QString& definitionName) const

{

    if (definitionName.isEmpty())

        return d->m_details.first();

    // build the sub-list of matching details.

    for (int i = 0; i < d->m_details.size(); i++) {

        const QContactDetail& existing = d->m_details.at(i);

        if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName) {

            return existing;

        }

    }

    return QContactDetail();

}

/*! Returns a list of details with the given \a definitionName

    The definitionName string can be determined by the DefinitionName attribute

    of defined objects (e.g. QContactPhoneNumber::DefinitionName) or by

    requesting a list of all the definition names using

    \l {QContactManager::detailDefinitions()}{detailDefinitions()} or the

    asynchronous \l

    {QContactDetailDefinitionFetchRequest::definitionNames()}{definitionNames()}.*/

QList<QContactDetail> QContact::details(const QString& definitionName) const

{

    // build the sub-list of matching details.

    QList<QContactDetail> sublist;

    // special case

    if (definitionName.isEmpty()) {

        sublist = d->m_details;

    } else {

        for (int i = 0; i < d->m_details.size(); i++) {

            const QContactDetail& existing = d->m_details.at(i);

            if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName) {

                sublist.append(existing);

            }

        }

    }

    return sublist;

}

/*!

    Returns a list of details of the given \a definitionName, with fields named \a fieldName and with value \a value.

    The definitionName string can be determined by the DefinitionName attribute

    of defined objects (e.g. QContactPhoneNumber::DefinitionName) or by

    requesting a list of all the definition names using

    \l {QContactManager::detailDefinitions()}{detailDefinitions()} or the

    asynchronous \l

    {QContactDetailDefinitionFetchRequest::definitionNames()}{definitionNames()}.*/

QList<QContactDetail> QContact::details(const QString& definitionName, const QString& fieldName, const QString& value) const

{

    // build the sub-list of matching details.

    QList<QContactDetail> sublist;

    // special case

    if (fieldName.isEmpty()) {

        sublist = details(definitionName);

    } else {

        for (int i = 0; i < d->m_details.size(); i++) {

            const QContactDetail& existing = d->m_details.at(i);

            if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName

                && existing.hasValue(fieldName) && value == existing.value(fieldName)) {

                sublist.append(existing);

            }

        }

    }

    return sublist;

}

/*!

    \internal

    Returns the first detail stored in the contact which with the given \a definitionName

*/

QContactDetail QContact::detail(const char* definitionName) const

{

    if (definitionName == 0)

        return d->m_details.first();

    // build the sub-list of matching details.

    for (int i = 0; i < d->m_details.size(); i++) {

        const QContactDetail& existing = d->m_details.at(i);

        if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName) {

            return existing;

        }

    }

    return QContactDetail();

}

/*!

    \internal

    Returns a list of details with the given \a definitionName

*/

QList<QContactDetail> QContact::details(const char* definitionName) const

{

    // build the sub-list of matching details.

    QList<QContactDetail> sublist;

    // special case

    if (definitionName == 0) {

        sublist = d->m_details;

    } else {

        for (int i = 0; i < d->m_details.size(); i++) {

            const QContactDetail& existing = d->m_details.at(i);

            if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName) {

                sublist.append(existing);

            }

        }

    }

    return sublist;

}

/*!

    \internal

    Returns a list of details with the given \a definitionName, \a fieldName and field \a value

*/

QList<QContactDetail> QContact::details(const char* definitionName, const char* fieldName, const QString& value) const

{

    // build the sub-list of matching details.

    QList<QContactDetail> sublist;

    // special case

    if (fieldName == 0) {

        sublist = details(definitionName);

    } else {

        for (int i = 0; i < d->m_details.size(); i++) {

            const QContactDetail& existing = d->m_details.at(i);

            if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName

                && existing.hasValue(fieldName) && value == existing.value(fieldName)) {

                sublist.append(existing);

            }

        }

    }

    return sublist;

}

/*!

 * Saves the given \a detail in the list of stored details, and sets the detail's id.

 * If another detail of the same type and id has been previously saved in

 * this contact, that detail is overwritten.  Otherwise, a new id is generated

 * and set in the detail, and the detail is added to the contact.

 *

 * If the detail's access constraint includes \c QContactDetail::ReadOnly,

 * this function will return true and save the detail in the contact,

 * however attempting to save the contact in a manager may fail (if that manager

 * decides that the read only detail should not be updated).

 * Details with the \c QContactDetail::ReadOnly constraint set are typically provided

 * in a contact by the manager, and are usually information that is either

 * synthesized, or not intended to be changed by the user (e.g. presence information

 * for other contacts).

 *

 * If \a detail is a QContactType, the existing contact type will