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/*!
    \page wakeonlan.html
    \title Wake On Lan

    \ingroup plugins
    \ingroup services

    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. The WOL service must
    be enabled on the host computer.

    \section1 Examples
    \section2 Adding a WOL device
    In order to add a WOL device you need to know the mac address of the host computer you
    want to wake up.
    \code
    {
        "id":1,
        "method":"Devices.AddConfiguredDevice",
        "params":{
            "deviceClassId": "{3c8f2447-dcd0-4882-8c09-99e579e4d24c}",
            "deviceParams":{
                "mac":"00:11:22:33:44:55",
                "name":"Wohnzimmer-PC"
            }
        }
    }
    \endcode
    response...
    \code
    {
        "id": 1,
        "params": {
            "deviceId": "{76347a44-2091-428c-b320-5a8db4c359f6}",
            "errorMessage": "",
            "success": true
        },
        "status": "success"
    }
    \endcode

    \section2 Wake up a device
    In order to wake up a configured device send following message:
    \code
    {
        "id":1,
        "method":"Actions.ExecuteAction",
        "params":{
            "actionTypeId": "{fb9b9d87-218f-4f0d-9e16-39f8a105029a}",
            "deviceId":"{76347a44-2091-428c-b320-5a8db4c359f6}"
        }
    }
    \endcode
    response...
    \code
    {
        "id": 1,
        "params": {
            "errorMessage": "",
            "success": true
        },
        "status": "success"
    }
    \endcode
    \section1 Plugin propertys:
        \section2 Plugin parameters
        Each configured plugin has following paramters:

        \table
            \header
                \li Name
                \li Description
                \li Data Type
            \row
                \li name
                \li This parameter holds the name/description of the target computer
                \li string
            \row
                \li mac
                \li This parameter holds the mac address of the target computer
                \li string
        \endtable
        \section2 Plugin actions:
        Following list contains all plugin \l{Action}s:
            \table
            \header
                \li Name
                \li Description
                \li UUID
            \row
                \li wakeup
                \li This action send the "magic package" to the mac address configured in the device parameter.
                \li fb9b9d87-218f-4f0d-9e16-39f8a105029a
            \endtable

*/


#include "devicepluginwakeonlan.h"

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

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

extern VendorId guhVendorId;
DeviceClassId wolDeviceClassId = DeviceClassId("3c8f2447-dcd0-4882-8c09-99e579e4d24c");
ActionTypeId wolActionTypeId = ActionTypeId("fb9b9d87-218f-4f0d-9e16-39f8a105029a");

DevicePluginWakeOnLan::DevicePluginWakeOnLan()
{
}

QList<Vendor> DevicePluginWakeOnLan::supportedVendors() const
{
    QList<Vendor> ret;
    Vendor guh(guhVendorId, "guh");
    ret.append(guh);
    return ret;
}

QList<DeviceClass> DevicePluginWakeOnLan::supportedDevices() const
{
    QList<DeviceClass> ret;

    DeviceClass deviceClassWakeOnLan(pluginId(), guhVendorId, wolDeviceClassId);
    deviceClassWakeOnLan.setName("Wake On Lan");
    
    QList<ParamType> wolParams;
    ParamType nameParam("name", QVariant::String);
    wolParams.append(nameParam);
    ParamType wolParam("mac", QVariant::String);
    wolParams.append(wolParam);


    QList<ActionType> wolActions;
    ActionType wolAction(wolActionTypeId);
    wolAction.setName("wakeup");
    wolActions.append(wolAction);

    deviceClassWakeOnLan.setParamTypes(wolParams);
    deviceClassWakeOnLan.setActions(wolActions);

    ret.append(deviceClassWakeOnLan);
    return ret;
}

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

QString DevicePluginWakeOnLan::pluginName() const
{
    return "Wake On Lan";
}

PluginId DevicePluginWakeOnLan::pluginId() const
{
    return PluginId("b5a87848-de56-451e-84a6-edd26ad4958f");
}

QPair<DeviceManager::DeviceError, QString> DevicePluginWakeOnLan::executeAction(Device *device, const Action &action)
{
    qDebug() << "execute action " << action.actionTypeId().toString();
    if(action.actionTypeId() == wolActionTypeId){
        wakeup(device->paramValue("mac").toString());
    }
    return report();
}

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()));
    }
    qDebug() << "created magic packet:" << packet.toHex();
    QUdpSocket udpSocket;
    udpSocket.writeDatagram(packet.data(), packet.size(), QHostAddress::Broadcast, 9);

}