QXmppCallInviteManager.h

// SPDX-FileCopyrightText: 2023 Tibor Csötönyi <work@taibsu.de>
//
// SPDX-License-Identifier: LGPL-2.1-or-later
 
#ifndef QXMPPCALLINVITEMANAGER_H
#define QXMPPCALLINVITEMANAGER_H
 
#include "QXmppClientExtension.h"
#include "QXmppError.h"
#include "QXmppJingleIq.h"
#include "QXmppMessageHandler.h"
#include "QXmppSendResult.h"
#include "QXmppTask.h"
 
class QXmppCallInviteManager;
class QXmppCallInvitePrivate;
class QXmppCallInviteManagerPrivate;
 
class QXMPP_EXPORT QXmppCallInvite : public QObject
{
    Q_OBJECT
public:
    struct Rejected { };
    struct Retracted { };
    struct Left { };
 
    using Result = std::variant<Rejected, Retracted, Left, QXmppError>;
 
    explicit QXmppCallInvite(QXmppCallInviteManager *manager);
    ~QXmppCallInvite();
 
    QXmppTask<QXmpp::SendResult> accept();
    QXmppTask<QXmpp::SendResult> reject();
    QXmppTask<QXmpp::SendResult> retract();
    QXmppTask<QXmpp::SendResult> leave();
 
    Q_SIGNAL void invited();
    Q_SIGNAL void accepted(const QString &id, const QString &callPartnerResource);
    Q_SIGNAL void closed(const QXmppCallInvite::Result &result);
 
private:
    QXmppTask<QXmpp::SendResult> invite(
        bool audio = true,
        bool video = false,
        std::optional<QXmppCallInviteElement::Jingle> jingle = std::nullopt,
        std::optional<QVector<QXmppCallInviteElement::External>> external = std::nullopt);
 
    QString id() const;
    void setId(const QString &id);
    void setCallPartnerJid(const QString &callPartnerJid);
    QString callPartnerJid() const;
    bool isAccepted() const;
    void setIsAccepted(bool isAccepted);
 
    std::unique_ptr<QXmppCallInvitePrivate> d;
 
    friend class QXmppCallInviteManager;
    friend class tst_QXmppCallInviteManager;
};
 
class QXMPP_EXPORT QXmppCallInviteManager : public QXmppClientExtension, public QXmppMessageHandler
{
    Q_OBJECT
public:
    using ProposeResult = std::variant<std::shared_ptr<QXmppCallInvite>, QXmppError>;
 
    QXmppCallInviteManager();
    ~QXmppCallInviteManager();
 
    QStringList discoveryFeatures() const override;
 
    QXmppTask<ProposeResult> invite(
        const QString &callPartnerJid,
        bool audio = true,
        bool video = false,
        std::optional<QXmppCallInviteElement::Jingle> jingle = std::nullopt,
        std::optional<QVector<QXmppCallInviteElement::External>> external = std::nullopt);
 
    Q_SIGNAL void invited(const std::shared_ptr<QXmppCallInvite> &callInvite, const QString &id);
 
protected:
    bool handleMessage(const QXmppMessage &) override;
 
private:
    QXmppTask<QXmpp::SendResult> sendMessage(
        const QXmppCallInviteElement &callInviteElement,
        const QString &callPartnerJid);
 
    void clear(const std::shared_ptr<QXmppCallInvite> &callInvite);
    void clearAll();
 
    bool handleCallInviteElement(QXmppCallInviteElement &&callInviteElement, const QString &senderJid);
 
    bool handleExistingCallInvite(
        const std::shared_ptr<QXmppCallInvite> &existingCallInvite,
        const QXmppCallInviteElement &callInviteElement,
        const QString &callPartnerResource);
 
    bool handleInviteCallInviteElement(const QXmppCallInviteElement &callInviteElement, const QString &callPartnerJid);
 
    std::shared_ptr<QXmppCallInvite> addCallInvite(const QString &callPartnerJid);
    const QVector<std::shared_ptr<QXmppCallInvite>> &callInvites() const;
 
private:
    std::unique_ptr<QXmppCallInviteManagerPrivate> d;
 
    friend class QXmppCallInvitePrivate;
    friend class tst_QXmppCallInviteManager;
};
Q_DECLARE_METATYPE(QXmppCallInvite::Result)
Q_DECLARE_METATYPE(std::shared_ptr<QXmppCallInvite>)
 
#endif  // QXMPPJINGLEMESSAGEINITIATIONMANAGER_H