/*
  SPDX-FileCopyrightText: 2009, 2010 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
  SPDX-FileContributor: Frank Osterfeld <osterfeld@kde.org>
  SPDX-FileContributor: Andras Mantia <andras@kdab.com>

  SPDX-License-Identifier: GPL-2.0-or-later WITH Qt-Commercial-exception-1.0
*/

#pragma once

#include "calendarsupport_export.h"

#include <Akonadi/Item>

#include <KCalendarCore/Calendar>
#include <KCalendarCore/Event>
#include <KCalendarCore/Incidence>
#include <KCalendarCore/Journal>
#include <KCalendarCore/Todo>

#include <QModelIndex>

namespace Akonadi
{
class ETMCalendar;
}

namespace KCalendarCore
{
class CalFilter;
}

class QAbstractItemModel;
class QDrag;
class QMimeData;

namespace CalendarSupport
{
class Calendar;
/**
 * returns the event from an incidence, or a null pointer if the item has no such payload
 */
CALENDARSUPPORT_EXPORT KCalendarCore::Event::Ptr event(const KCalendarCore::Incidence::Ptr &incidence);

/**
 * returns incidence pointers from an akonadi item.
 */
CALENDARSUPPORT_EXPORT KCalendarCore::Incidence::List incidencesFromItems(const Akonadi::Item::List &items);

/**
 * returns the todo from an incidence, or a null pointer if the item has no such payload
 */
CALENDARSUPPORT_EXPORT KCalendarCore::Todo::Ptr todo(const KCalendarCore::Incidence::Ptr &incidence);

/**
 * returns the journal from an incidence, or a null pointer if the item has no such payload
 */
CALENDARSUPPORT_EXPORT KCalendarCore::Journal::Ptr journal(const KCalendarCore::Incidence::Ptr &incidence);

/**
 * returns whether an Akonadi item contains an incidence
 */
CALENDARSUPPORT_EXPORT bool hasIncidence(const Akonadi::Item &item);

/**
 * returns whether an Akonadi item contains an event
 */
CALENDARSUPPORT_EXPORT bool hasEvent(const Akonadi::Item &item);

/**
 * returns whether an incidence contains an event
 */
CALENDARSUPPORT_EXPORT bool hasEvent(const KCalendarCore::Incidence::Ptr &incidence);

/**
 * returns whether an Akonadi item contains a todo
 */
CALENDARSUPPORT_EXPORT bool hasTodo(const Akonadi::Item &item);

/**
 * returns whether an incidence contains a todo
 */
CALENDARSUPPORT_EXPORT bool hasTodo(const KCalendarCore::Incidence::Ptr &incidence);

/**
 * returns whether an Akonadi item contains a journal
 */
CALENDARSUPPORT_EXPORT bool hasJournal(const Akonadi::Item &item);

/**
 * returns whether an incidence contains a journal
 */
CALENDARSUPPORT_EXPORT bool hasJournal(const KCalendarCore::Incidence::Ptr &incidence);

/**
 * returns @p true if the URL represents an Akonadi item and has one of the given mimetypes.
 */
bool isValidIncidenceItemUrl(const QUrl &url, const QStringList &supportedMimeTypes);

bool isValidIncidenceItemUrl(const QUrl &url);

/**
 * returns @p true if the mime data object contains any of the following:
 *
 * - an Akonadi item with a supported KCal mimetype
 * - an iCalendar
 * - a VCard
 */
CALENDARSUPPORT_EXPORT bool canDecode(const QMimeData *mimeData);

CALENDARSUPPORT_EXPORT QList<QUrl> incidenceItemUrls(const QMimeData *mimeData);

CALENDARSUPPORT_EXPORT QList<QUrl> todoItemUrls(const QMimeData *mimeData);

CALENDARSUPPORT_EXPORT bool mimeDataHasIncidence(const QMimeData *mimeData);

CALENDARSUPPORT_EXPORT KCalendarCore::Todo::List todos(const QMimeData *mimeData);

CALENDARSUPPORT_EXPORT KCalendarCore::Incidence::List incidences(const QMimeData *mimeData);

/**
 * creates mime data object for dragging akonadi items containing an incidence
 */
CALENDARSUPPORT_EXPORT QMimeData *createMimeData(const Akonadi::Item::List &items);

#ifndef QT_NO_DRAGANDDROP
/**
 * creates a drag object for dragging an akonadi item containing an incidence
 */
CALENDARSUPPORT_EXPORT QDrag *createDrag(const Akonadi::Item &item, QObject *parent);

/**
 * creates a drag object for dragging akonadi items containing an incidence
 */
CALENDARSUPPORT_EXPORT QDrag *createDrag(const Akonadi::Item::List &items, QObject *parent);
#endif
/**
  Applies a filter to a list of items containing incidences.
  Items not containing incidences or not matching the filter are removed.
  Helper method anologous to KCalendarCore::CalFilter::apply()
  @see KCalendarCore::CalFilter::apply()
  @param items the list of items to filter
  @param filter the filter to apply to the list of items
  @return the filtered list of items
*/
CALENDARSUPPORT_EXPORT Akonadi::Item::List applyCalFilter(const Akonadi::Item::List &items, const KCalendarCore::CalFilter *filter);

/**
  Shows a modal dialog that allows to select a collection.

  @param will contain the dialogCode, QDialog::Accepted if the user pressed Ok,
  QDialog::Rejected otherwise
  @param parent The optional parent of the modal dialog.
  @return The select collection or an invalid collection if
  there was no collection selected.
*/
CALENDARSUPPORT_EXPORT Akonadi::Collection
selectCollection(QWidget *parent, int &dialogCode, const QStringList &mimeTypes, const Akonadi::Collection &defaultCollection = Akonadi::Collection());

CALENDARSUPPORT_EXPORT Akonadi::Item itemFromIndex(const QModelIndex &index);

CALENDARSUPPORT_EXPORT Akonadi::Item::List
itemsFromModel(const QAbstractItemModel *model, const QModelIndex &parentIndex = QModelIndex(), int start = 0, int end = -1);

CALENDARSUPPORT_EXPORT Akonadi::Collection::List
collectionsFromModel(const QAbstractItemModel *model, const QModelIndex &parentIndex = QModelIndex(), int start = 0, int end = -1);

CALENDARSUPPORT_EXPORT Akonadi::Collection::Id collectionIdFromIndex(const QModelIndex &index);

CALENDARSUPPORT_EXPORT Akonadi::Collection::List collectionsFromIndexes(const QModelIndexList &indexes);

CALENDARSUPPORT_EXPORT QString subMimeTypeForIncidence(const KCalendarCore::Incidence::Ptr &incidence);

/**
 * Returns a list containing work days between @p start and @end.
 */
CALENDARSUPPORT_EXPORT QList<QDate> workDays(QDate start, QDate end);

/**
 * Creates a nicely formatted toolTip string for a calendar, containing some quick,
 * useful information to the user.
 *
 * @param coll is the Akonadi collection representing the calendar.
 * @param richText switches off richText (on by default) [CURRENTLY UNIMPLEMENTED]
 *
 * @return a QString containing the calendar info suitable for a toolTip.
 * @since 5.9
 */
CALENDARSUPPORT_EXPORT QString toolTipString(const Akonadi::Collection &coll, bool richText = true);

/**
 * Returns a list of holidays that occur at @param date.
 */
CALENDARSUPPORT_EXPORT QStringList holiday(QDate date);

CALENDARSUPPORT_EXPORT QStringList categories(const KCalendarCore::Incidence::List &incidences);

CALENDARSUPPORT_EXPORT bool mergeCalendar(const QString &srcFilename, const KCalendarCore::Calendar::Ptr &destCalendar);

CALENDARSUPPORT_EXPORT bool mergeCalendar(const QString &srcFilename, const KCalendarCore::Calendar::Ptr &destCalendar);

CALENDARSUPPORT_EXPORT void createAlarmReminder(const KCalendarCore::Alarm::Ptr &alarm, KCalendarCore::IncidenceBase::IncidenceType type);
}
