service.hxx

/* Copyright (C) 2006-2016 J.F.Dockes
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 *   02110-1301 USA
 */
#ifndef _SERVICE_H_X_INCLUDED_
#define _SERVICE_H_X_INCLUDED_

#include <sys/types.h>

#include <functional>
#include <iostream>
#include <string>

#include "libupnpp/control/cdircontent.hxx"
#include "libupnpp/log.hxx"
#include "libupnpp/soaphelp.hxx"
#include "libupnpp/upnperrcodes.hxx"

namespace UPnPClient {

class UPnPDeviceDesc;
class UPnPServiceDesc;
class Service;

class VarEventReporter {
public:
    virtual ~VarEventReporter() {}
    virtual void changed(const char *nm, int val)  = 0;
    virtual void changed(const char *nm, const char *val) = 0;
    virtual void changed(const char * /*nm*/, UPnPDirObject /*meta*/) {}
    virtual void changed(const char * /*nm*/, std::vector<int> /*ids*/) {}
};

typedef
std::function<void (const std::unordered_map<std::string, std::string>&)>
evtCBFunc;

class Service {
public:
    Service(const UPnPDeviceDesc& device, const UPnPServiceDesc& service);
    
    Service();

    virtual ~Service();

    bool initFromDescription(const UPnPDeviceDesc& description);
    
    virtual void reSubscribe();

    const std::string& getFriendlyName() const;
    const std::string& getDeviceId() const;
    const std::string& getServiceType() const;
    const std::string& getActionURL() const;
    const std::string& getModelName() const;
    const std::string& getManufacturer() const;

    virtual int runAction(const UPnPP::SoapOutgoing& args,
                          UPnPP::SoapIncoming& data);

    int runTrivialAction(const std::string& actionName);

    template <class T> int runSimpleGet(const std::string& actnm,
                                        const std::string& valnm,
                                        T *valuep);

    template <class T> int runSimpleAction(const std::string& actnm,
                                           const std::string& valnm,
                                           T value);

    virtual VarEventReporter *getReporter();

    virtual void installReporter(VarEventReporter* reporter);

    virtual bool serviceTypeMatch(const std::string& tp) = 0;
    
protected:

    virtual bool serviceInit(const UPnPDeviceDesc&,
                             const UPnPServiceDesc&) {
        return true;
    }

    void registerCallback(evtCBFunc c);

    virtual void registerCallback() {}

    void unregisterCallback();

private:
    // Can't copy these because this does not make sense for the
    // member function callback.
    Service(Service const&);
    Service& operator=(Service const&);

    class Internal;
    Internal *m{nullptr};
};

} // namespace UPnPClient

#endif /* _SERVICE_H_X_INCLUDED_ */