/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *                                                                         *
 *  Copyright (C) 2015 Simon Stuerz <simon.stuerz@guh.guru>                *
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 *  Guh is free software: you can redistribute it and/or modify            *
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *  GNU General Public License for more details.                           *
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/*!
    \page wakeonlan.html
    \title Wake On Lan

    \ingroup plugins
    \ingroup network

    Wake-on-LAN (WOL) is an Ethernet computer networking standard that allows a computer
    to be turned on or awakened by a network message. This plugin allows you to send a
    a "magic packet" to a certain mac address in the local network.

    \underline{NOTE}: The WOL service has to be enabled on the host computer.

    \chapter Plugin properties
    Following JSON file contains the definition and the description of all available \l{DeviceClass}{DeviceClasses}
    and \l{Vendor}{Vendors} of this \l{DevicePlugin}.

    Each \l{DeviceClass} has a list of \l{ParamType}{paramTypes}, \l{ActionType}{actionTypes}, \l{StateType}{stateTypes}
    and \l{EventType}{eventTypes}. The \l{DeviceClass::CreateMethod}{createMethods} parameter describes how the \l{Device}
    will be created in the system. A device can have more than one \l{DeviceClass::CreateMethod}{CreateMethod}.
    The \l{DeviceClass::SetupMethod}{setupMethod} describes the setup method of the \l{Device}.
    The detailed implementation of each \l{DeviceClass} can be found in the source code.

    \note If a \l{StateType} has the parameter \tt{"writable": {...}}, an \l{ActionType} with the same uuid and \l{ParamType}{ParamTypes}
    will be created automatically.

    \quotefile plugins/deviceplugins/wakeonlan/devicepluginwakeonlan.json
*/


#include "devicepluginwakeonlan.h"

#include "plugin/device.h"
#include "devicemanager.h"
#include "plugininfo.h"

#include <QDebug>
#include <QStringList>
#include <QUdpSocket>

DevicePluginWakeOnLan::DevicePluginWakeOnLan()
{
}

DeviceManager::HardwareResources DevicePluginWakeOnLan::requiredHardware() const
{
    return DeviceManager::HardwareResourceNone;
}

DeviceManager::DeviceError DevicePluginWakeOnLan::executeAction(Device *device, const Action &action)
{
    if(action.actionTypeId() == wolActionTypeId){
        qCDebug(dcWakeOnLan) << "Wake up" << device->name();
        wakeup(device->paramValue("mac").toString());
    }
    return DeviceManager::DeviceErrorNoError;
}

void DevicePluginWakeOnLan::wakeup(QString mac)
{
    const char header[] = {char(0xff), char(0xff), char(0xff), char(0xff), char(0xff), char(0xff)};
    QByteArray packet = QByteArray::fromRawData(header, sizeof(header));
    for(int i = 0; i < 16; ++i) {
        packet.append(QByteArray::fromHex(mac.remove(':').toLocal8Bit()));
    }
    qCDebug(dcWakeOnLan) << "Created magic packet:" << packet.toHex();
    QUdpSocket udpSocket;
    udpSocket.writeDatagram(packet.data(), packet.size(), QHostAddress::Broadcast, 9);
}

