// Include files
#include <QtPlugin>
#include <QCryptographicHash>
#include <QDataStream>
#include <QTextStream>
#include <QFile>
#include <QNetworkReply>
#include <QXmlStreamReader>
#include <parser.h>
#include <QMap>
#include <QListIterator>

#include "flickrcontactfetcherplugin.h"

// HARD CODED AS CSM IS NOT AVAILABLE - START - use your rigistered app's keys here
static const QString apiKey = "";
static const QString apiSecret = "";
static const QString miniToken = "";
QString fullToken = "";
// HARD CODED AS CSM IS NOT AVAILABLE - END


/**
 * Method called by plugins for logging
 * @param log string to be logged
 */
void FlickrContactFetcherPlugin::writeLog(QString log) const
	{
	QFile file("c:\\data\\PluginLogs.txt");
    if (!file.open(QIODevice::Append | QIODevice::Text))
	         ;
    QTextStream out(&file);
    out << log << "\n";
    file.close();
	}

/**
 * Destructor
 */
FlickrContactFetcherPlugin::~FlickrContactFetcherPlugin( )
	{
	if(m_provider)
		delete m_provider;
	}

/**
 * Method to get the list of friends
 * @param aRequest [out] The request data to be sent to network
 * @param aPageNum The page to be extracted
 * @param aItemsPerPage Number of items per page
 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
 */
SmfPluginError FlickrContactFetcherPlugin::friends( SmfPluginRequestData &aRequest,
		const int aPageNum,
		const int aItemsPerPage )
	{
	writeLog("FlickrContactFetcherPlugin::friends");

	SmfPluginError error = SmfPluginErrInvalidRequest;

	// invalid arguments
	if( aPageNum < 0 || aItemsPerPage < 0 )
		return error;
	else
		{
		// Create the API signature string
		QString baseString;
		baseString.append(apiSecret);
		baseString.append("api_key"+apiKey);
		baseString.append("auth_token"+fullToken);
		baseString.append("filterfriends");
		baseString.append("formatjson");
		baseString.append("methodflickr.contacts.getList");
		baseString.append("page"+QString::number(aPageNum));
		baseString.append("per_page"+QString::number(aItemsPerPage));

		// Create the url
		QUrl url("http://api.flickr.com/services/rest/?");
		url.addQueryItem("method", "flickr.contacts.getList");
		url.addQueryItem("api_key", apiKey);
		url.addQueryItem("filter", "friends");
		url.addQueryItem("format", "json");
		url.addQueryItem("page", QString::number(aPageNum));
		url.addQueryItem("per_page", QString::number(aItemsPerPage));
		url.addQueryItem("auth_token", fullToken);
		url.addQueryItem("api_sig", generateSignature(baseString));

		// Create the request, set the url
		writeLog("final url = "+url.toString());
		aRequest.iNetworkRequest.setUrl(url);
		aRequest.iRequestType = SmfContactGetFriends;
		aRequest.iPostData = NULL;
		aRequest.iHttpOperationType = QNetworkAccessManager::GetOperation;
		error = SmfPluginErrNone;
		}
	writeLog("Url string is : "+aRequest.iNetworkRequest.url().toString());
	return error;
	}

/**
 * Method called by plugins to generate a signature string from a base string
 * @param aBaseString The base string
 * @return The md5 hash of the base string
 */
QString FlickrContactFetcherPlugin::generateSignature(const QString aBaseString)
	{
	writeLog("FlickrContactFetcherPlugin::generateSignature");

	// Create md5 hash of the signature string
    QByteArray byteArray;
    byteArray.insert(0, aBaseString.toAscii());

    QByteArray md5Hash = QCryptographicHash::hash(byteArray,QCryptographicHash::Md5 ).toHex();
    QString returnString (md5Hash);
    writeLog("generated signature = "+QString(returnString));
    return returnString;
	}

/**
 * Method to get the list of followers
 * @param aRequest [out] The request data to be sent to network
 * @param aPageNum The page to be extracted
 * @param aItemsPerPage Number of items per page
 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
 */
SmfPluginError FlickrContactFetcherPlugin::followers( SmfPluginRequestData &aRequest,
		const int aPageNum ,
		const int aItemsPerPage  )
	{
	Q_UNUSED(aRequest)
Q_UNUSED(aPageNum)
Q_UNUSED(aItemsPerPage)
	SmfPluginError error = SmfPluginErrInvalidRequest;
	return error;
	}

/**
 * Method to search for a contact
 * @param aRequest [out] The request data to be sent to network
 * @param aContact contact to be searched
 * @param aPageNum The page to be extracted
 * @param aItemsPerPage Number of items per page
 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
 */
SmfPluginError FlickrContactFetcherPlugin::search( SmfPluginRequestData &aRequest,
		const SmfContact &aContact,
		const int aPageNum ,
		const int aItemsPerPage  )
	{
	Q_UNUSED(aRequest)
Q_UNUSED(aContact)
Q_UNUSED(aPageNum)
Q_UNUSED(aItemsPerPage)
	SmfPluginError error = SmfPluginErrInvalidRequest;
	return error;
	}

/**
 * Method to search for contacts (friends) who are near the user.
 * Proximity defines accuracy level
 * @param aRequest [out] The request data to be sent to network
 * @param aLocation The location search criteria
 * @param aProximity location search boundary
 * @param aPageNum The page to be extracted
 * @param aItemsPerPage Number of items per page
 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
 */
SmfPluginError FlickrContactFetcherPlugin::searchNear( SmfPluginRequestData &aRequest,
		const SmfLocation &aLocation,
		const SmfLocationSearchBoundary &aProximity,
		const int aPageNum ,
		const int aItemsPerPage  )
	{
	Q_UNUSED(aRequest)
Q_UNUSED(aLocation)
Q_UNUSED(aProximity)
Q_UNUSED(aPageNum)
Q_UNUSED(aItemsPerPage)
	SmfPluginError error = SmfPluginErrInvalidRequest;
	return error;
	}

/**
 * Method to get the list of groups
 * @param aRequest [out] The request data to be sent to network
 * @param aPageNum The page to be extracted
 * @param aItemsPerPage Number of items per page
 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
 */
SmfPluginError FlickrContactFetcherPlugin::groups( SmfPluginRequestData &aRequest,
		const int aPageNum ,
		const int aItemsPerPage  )
	{
	Q_UNUSED(aRequest)
Q_UNUSED(aPageNum)
Q_UNUSED(aItemsPerPage)
	SmfPluginError error = SmfPluginErrInvalidRequest;
	return error;
	}

/**
 * Method to search for a contact in a group
 * @param aRequest [out] The request data to be sent to network
 * @param aGroup the group in which to search
 * @param aPageNum The page to be extracted
 * @param aItemsPerPage Number of items per page
 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
 */
SmfPluginError FlickrContactFetcherPlugin::searchInGroup( SmfPluginRequestData &aRequest,
		const SmfGroup &aGroup,
		const int aPageNum ,
		const int aItemsPerPage  )
	{
	Q_UNUSED(aRequest)
Q_UNUSED(aGroup)
Q_UNUSED(aPageNum)
Q_UNUSED(aItemsPerPage)
	SmfPluginError error = SmfPluginErrInvalidRequest;
	return error;
	}

/**
 * Customised method for SmfContactFetcherPlugin interface
 * @param aRequest [out] The request data to be sent to network
 * @param aOperation The operation type (should be known between
 * the client interface and the plugin)
 * @param aData The data required to form the request (The type
 * of data should be known between client and the plugin)
 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
 */
SmfPluginError FlickrContactFetcherPlugin::customRequest( SmfPluginRequestData &aRequest,
		const int &aOperation, QByteArray *aData )
	{
	Q_UNUSED(aRequest)
Q_UNUSED(aOperation)
Q_UNUSED(aData)
	SmfPluginError error = SmfPluginErrInvalidRequest;
	return error;
	}

/**
 * The first method to be called in the plugin that implements this interface.
 * If this method is not called, plugin may not behave as expected.
 * Plugins are expected to save the aUtil handle and use and when required.
 * @param aUtil The instance of SmfPluginUtil
 */
void FlickrContactFetcherPlugin::initialize( SmfPluginUtil *aUtil )
	{
	// Save the SmfPluginUtil handle
	m_util = aUtil;

	// Create an instance of FlickrProviderBase
	m_provider = new FlickrProviderBase;
	m_provider->initialize();
	}

/**
 * Method to get the provider information
 * @return Instance of SmfProviderBase
 */
SmfProviderBase* FlickrContactFetcherPlugin::getProviderInfo( )
	{
	return m_provider;
	}

/**
 * Method to get the result for a network request.
 * @param aTransportResult The result of transport operation
 * @param aResponse The QByteArray instance containing the network response.
 * The plugins should delete this instance once they have read the
 * data from it.
 * @param aResult [out] An output parameter to the plugin manager.If the
 * return value is SmfSendRequestAgain, QVariant will be of type
 * SmfPluginRequestData.
 * For SmfGalleryPlugin: If last operation was pictures(), aResult will
 * be of type QList<SmfPicture>. If last operation was description(),
 * aResult will be of type QString. If last operation was upload() or
 * postComment(), aResult will be of type bool.
 * @param aRetType [out] SmfPluginRetType
 * @param aPageResult [out] The SmfResultPage structure variable
 */
SmfPluginError FlickrContactFetcherPlugin::responseAvailable(
		const SmfTransportResult &aTransportResult,
		QByteArray *aResponse,
		QVariant* aResult,
		SmfPluginRetType &aRetType,
		SmfResultPage &aPageResult )
	{
	writeLog("FlickrContactFetcherPlugin::responseAvailable");
	Q_UNUSED(aPageResult)
	SmfPluginError error;
	QList<SmfContact> list;

	if(SmfTransportOpNoError == aTransportResult)
		{
		writeLog("No transport error");

		QByteArray response(aResponse->data());
		delete aResponse;
		writeLog("Flickr response = "+QString(response));

#if 1
		// For getting contacts from json response
		QJson::Parser parser;
		bool ok;

		// To remove the "jsonFlickrApi(" and also remove the last ")" from the response,
		// as these gives a Json parsing error
		response.remove(0, 14);
		response.chop(1);

		QVariantMap result = parser.parse(response, &ok).toMap();
		if (!ok) {
			writeLog("An error occurred during json parsing");
			aResult->setValue(list);
			error = SmfPluginErrParsingFailed;
			return error;
		}

		QVariantMap map1 = result["contacts"].toMap();
		writeLog("page = "+map1["page"].toString());
		writeLog("pages = "+map1["pages"].toString());
		writeLog("per_page = "+map1["per_page"].toString());
		writeLog("perpage = "+map1["perpage"].toString());
		writeLog("total = "+map1["perpage"].toString());

		QList<QVariant> list1 = map1["contact"].toList();

		QListIterator<QVariant> i(list1);
		while(i.hasNext())
			{
			SmfContact contact;
			QVariantMap map2 = i.next().toMap();
			writeLog("nsid = "+map2["nsid"].toString());
			writeLog("username = "+map2["username"].toString());
			writeLog("iconserver = "+map2["iconserver"].toString());
			writeLog("iconfarm = "+map2["iconfarm"].toString());
			writeLog("ignored = "+map2["ignored"].toString());
			writeLog("realname = "+map2["realname"].toString());
			writeLog("friend = "+map2["friend"].toString());
			writeLog("family = "+map2["family"].toString());
			writeLog("path_alias = "+map2["path_alias"].toString());
			writeLog("location = "+map2["location"].toString());

			QContactName contactname;
			QString username = map2["username"].toString();
			writeLog("Username = "+username);
			contactname.setFirstName(username);
			contactname.setLastName(username);
			QVariant nameVar = QVariant::fromValue(contactname);
			contact.setValue("Name",nameVar);
			list.append(contact);
			}
#endif

#if 0
		// For getting contacts from xml response
		QXmlStreamReader xml(response);
		while (!xml.atEnd())
			{
			xml.readNext();
			if (xml.tokenType() == QXmlStreamReader::StartElement)
				{
				// If the tag is contact
				if (xml.name() == "contact")
					{
					writeLog("Contact tag found");
					SmfContact contact;
					QStringRef str;
					QContactName contactname;
					QString username = xml.attributes().value("username").toString();
					writeLog("Username = ");
					writeLog(username);
					contactname.setFirstName(username);
					contactname.setLastName(username);
					QVariant namevar1 = QVariant::fromValue(contactname);
					contact.setValue("Name",namevar1);
                    list.append(contact);
					}
				}
			}
#endif

		writeLog("list count = "+QString::number(list.count(),10));
		aRetType = SmfRequestComplete;
		error = SmfPluginErrNone;
		}

	else
		{
		error = SmfPluginErrInvalidRequest;
		aRetType = SmfRequestError;
		}

	aResult->setValue(list);
	return error;
	}


/**
 * Destructor
 */
FlickrProviderBase::~FlickrProviderBase( )
	{
	}

/**
 * Method to get the Localisable name of the service.
 * @return The Localisable name of the service.
 */
QString FlickrProviderBase::serviceName( ) const
	{
	return m_serviceName;
	}

/**
 * Method to get the Logo of the service
 * @return The Logo of the service
 */
QImage FlickrProviderBase::serviceIcon( ) const
	{
	return m_serviceIcon;
	}

/**
 * Method to get the Readable service description
 * @return The Readable service description
 */
QString FlickrProviderBase::description( ) const
	{
	return m_description;
	}

/**
 * Method to get the Website of the service
 * @return The Website of the service
 */
QUrl FlickrProviderBase::serviceUrl( ) const
	{
	return m_serviceUrl;
	}

/**
 * Method to get the URL of the Application providing this service
 * @return The URL of the Application providing this service
 */
QUrl FlickrProviderBase::applicationUrl( ) const
	{
	return m_applicationUrl;
	}

/**
 * Method to get the Icon of the application
 * @return The Icon of the application
 */
QImage FlickrProviderBase::applicationIcon( ) const
	{
	return m_applicationIcon;
	}

/**
 * Method to get the Plugin specific ID
 * @return The Plugin specific ID
 */
QString FlickrProviderBase::pluginId( ) const
	{
	return m_pluginId;
	}

/**
 * Method to get the ID of the authentication application
 * for this service
 * @param aProgram The authentication application name
 * @param aArguments List of arguments required for authentication app
 * @param aMode Strting mode for authentication application
 * @return The ID of the authentication application
 */
QString FlickrProviderBase::authenticationApp( QString &aProgram,
		QStringList & aArguments,
		QIODevice::OpenModeFlag aMode ) const
	{
	Q_UNUSED(aProgram)
Q_UNUSED(aArguments)
Q_UNUSED(aMode)
	return m_authAppId;
	}

/**
 * Method to get the unique registration ID provided by the
 * Smf for authorised plugins
 * @return The unique registration ID/token provided by the Smf for
 * authorised plugins
 */
QString FlickrProviderBase::smfRegistrationId( ) const
	{
	return m_smfRegToken;
	}

void FlickrProviderBase::initialize()
	{
	m_serviceName = "Flickr";
	m_description = "Flickr plugin description";
	m_serviceUrl = QUrl(QString("http://api.flickr.com"));
	m_pluginId = "flickrcontactfetcherplugin.qtplugin";
	m_authAppId = "Flickr AuthAppId";
	m_smfRegToken = "Flickr RegToken";
	}


/*
 * Export Macro
 * plugin name : flickrcontactfetcherplugin
 * plugin class : FlickrContactFetcherPlugin
 */
Q_EXPORT_PLUGIN2( flickrcontactfetcherplugin, FlickrContactFetcherPlugin )