#ifndef VOICECALLHANDLER_H
#define VOICECALLHANDLER_H

#include <QObject>
#include <QDateTime>

#include <QDBusPendingCallWatcher>

class VoiceCallHandler : public QObject
{
    Q_OBJECT

    Q_ENUMS(VoiceCallStatus)

    Q_PROPERTY(QString handlerId READ handlerId CONSTANT)
    Q_PROPERTY(QString providerId READ providerId CONSTANT)
    Q_PROPERTY(int status READ status NOTIFY statusChanged)
    Q_PROPERTY(QString statusText READ statusText NOTIFY statusChanged)
    Q_PROPERTY(QString lineId READ lineId NOTIFY lineIdChanged)
    Q_PROPERTY(QDateTime startedAt READ startedAt NOTIFY startedAtChanged)
    Q_PROPERTY(int duration READ duration NOTIFY durationChanged)
    Q_PROPERTY(bool isIncoming READ isIncoming CONSTANT)
    Q_PROPERTY(bool isEmergency READ isEmergency NOTIFY emergencyChanged)
    Q_PROPERTY(bool isMultiparty READ isMultiparty NOTIFY multipartyChanged)
    Q_PROPERTY(bool isForwarded READ isForwarded NOTIFY forwardedChanged)

public:
    enum VoiceCallStatus {
        STATUS_NULL,
        STATUS_ACTIVE,
        STATUS_HELD,
        STATUS_DIALING,
        STATUS_ALERTING,
        STATUS_INCOMING,
        STATUS_WAITING,
        STATUS_DISCONNECTED
    };

    explicit VoiceCallHandler(const QString &handlerId, QObject *parent = 0);
            ~VoiceCallHandler();

    QString handlerId() const;
    QString providerId() const;
    int status() const;
    QString statusText() const;
    QString lineId() const;
    QDateTime startedAt() const;
    int duration() const;
    bool isIncoming() const;
    bool isMultiparty() const;
    bool isEmergency() const;
    bool isForwarded() const;

Q_SIGNALS:
    void error(const QString &error);
    void statusChanged();
    void lineIdChanged();
    void durationChanged();
    void startedAtChanged();
    void emergencyChanged();
    void multipartyChanged();
    void forwardedChanged();

public Q_SLOTS:
    void answer();
    void hangup();
    void hold(bool on);
    void deflect(const QString &target);
    void sendDtmf(const QString &tones);

protected Q_SLOTS:
    void initialize(bool notifyError = false);

    void onPendingCallFinished(QDBusPendingCallWatcher *watcher);
    void onDurationChanged();
    void onStatusChanged();
    void onLineIdChanged();
    void onStartedAtChanged();
    void onEmergencyChanged();
    void onMultipartyChanged();
    void onForwardedChanged();

private:
    class VoiceCallHandlerPrivate *d_ptr;

    Q_DISABLE_COPY(VoiceCallHandler)
    Q_DECLARE_PRIVATE(VoiceCallHandler)
};

#endif // VOICECALLHANDLER_H