CallManager.h

#pragma once

#include <string>
#include <vector>

#include <QObject>
#include <QMediaPlayer>
#include <QSharedPointer>
#include <QString>
#include <QTimer>

#include "mtx/events/collections.hpp"
#include "mtx/events/voip.hpp"

namespace mtx::responses {
struct TurnServer;
}

class UserSettings;
class WebRTCSession;

class CallManager : public QObject
{
        Q_OBJECT

public:
        CallManager(QSharedPointer<UserSettings>);

        void sendInvite(const QString &roomid);
        void hangUp(mtx::events::msg::CallHangUp::Reason = mtx::events::msg::CallHangUp::Reason::User);
        bool onActiveCall();
        void refreshTurnServer();

public slots:
        void syncEvent(const mtx::events::collections::TimelineEvents &event);

signals:
        void newMessage(const QString &roomid, const mtx::events::msg::CallInvite&);
        void newMessage(const QString &roomid, const mtx::events::msg::CallCandidates&);
        void newMessage(const QString &roomid, const mtx::events::msg::CallAnswer&);
        void newMessage(const QString &roomid, const mtx::events::msg::CallHangUp&);
        void turnServerRetrieved(const mtx::responses::TurnServer&);
        void newCallParty(
            const QString &userid,
            const QString &displayName,
            const QString &roomName,
            const QString &avatarUrl);

private slots:
        void retrieveTurnServer();

private:
        WebRTCSession& session_;
        QString roomid_;
        std::string callid_;
        const uint32_t timeoutms_ = 120000;
        std::vector<mtx::events::msg::CallCandidates::Candidate> remoteICECandidates_;
        std::vector<std::string> turnURIs_;
        QTimer turnServerTimer_;
        QSharedPointer<UserSettings> settings_;
        QMediaPlayer player_;

        template<typename T>
        bool handleEvent_(const mtx::events::collections::TimelineEvents &event);
        void handleEvent(const mtx::events::RoomEvent<mtx::events::msg::CallInvite>&);
        void handleEvent(const mtx::events::RoomEvent<mtx::events::msg::CallCandidates>&);
        void handleEvent(const mtx::events::RoomEvent<mtx::events::msg::CallAnswer>&);
        void handleEvent(const mtx::events::RoomEvent<mtx::events::msg::CallHangUp>&);
        void answerInvite(const mtx::events::msg::CallInvite&);
        void generateCallID();
        void endCall();
        void playRingtone(const QString &ringtone, bool repeat);
        void stopRingtone();
};