scancontroller.hpp

/*
 * Regilo
 * Copyright (C) 2015-2016  Branislav Holý <branoholy@gmail.com>
 *
 * This file is part of Regilo.
 *
 * Regilo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Regilo 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Regilo.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef REGILO_SCANCONTROLLER_HPP
#define REGILO_SCANCONTROLLER_HPP

#include "controller.hpp"
#include "scandata.hpp"
#include "utils.hpp"

namespace regilo {

class IScanController : public virtual IController
{
public:
    virtual ~IScanController() = default;

    virtual ScanData getScan(bool fromDevice = true) = 0;
};

template<typename ProtocolController>
class ScanController : public virtual IScanController, public ProtocolController
{
protected:
    std::size_t lastScanId = 0; 

    virtual std::string getScanCommand() const = 0;

    virtual bool parseScanData(std::istream& in, ScanData& data) = 0;

public:
    using ProtocolController::ProtocolController;

    virtual ~ScanController() = default;

    virtual ScanData getScan(bool fromDevice = true) override final;
};

template<typename ProtocolController>
ScanData ScanController<ProtocolController>::getScan(bool fromDevice)
{
    ScanData data;

    if(fromDevice)
    {
        ProtocolController::template sendCommand<>(getScanCommand());
        data.time = epoch<std::chrono::milliseconds>().count();

        parseScanData(this->deviceOutput, data);
    }
    else
    {
        std::istringstream response(this->log->readCommand(getScanCommand()));
        if(std::shared_ptr<const ITimedLog> timedLog = std::dynamic_pointer_cast<const ITimedLog>(this->getLog()))
        {
            data.time = timedLog->getLastCommandTimeAs<std::chrono::milliseconds>().count();
        }

        parseScanData(response, data);
    }
    if(!data.empty()) data.scanId = lastScanId++;

    return data;
}

}

#endif // REGILO_SCANCONTROLLER_HPP