/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0""

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  

*

*/

#include "cputility.h"

#include <QString>

#include <QDir>

#include <QFileInfo>

#include "cpbasepath.h"

#include <cppluginloader.h>

#include <cpplugininterface.h>

#include <cppluginplatinterface.h>

#include <cplogger.h>

#include <cpsettingformentryitemdata.h>

#include "cpcategorysettingformitemdata.h"

#include "cppluginconfigreader.h"

#include "cpplaceholderitemdata.h"

void CpUtility::buildConfigPluginItems(HbDataFormModelItem *parent,

									   const QString &configFile,

									   CpItemDataHelper &itemDataHelper)

{

    if (!parent) {

        return;

    }

	QString configPath(configFile);

	QFileInfo fi(configFile);

    //if it is a relative path, search the config file from device drives.

	if (!fi.isAbsolute()) {

		QStringList dirs = CpUtility::configFileDirectories();

		foreach(const QString &dir,dirs) {

			configPath = dir + fi.fileName();

			if (QFileInfo(configPath).exists()) {

                CPFW_LOG(configPath + " has been found.");

				break;		

			}

		}

	}

    QList<CpPluginConfig> pluginConfigs = CpPluginConfigReader(configPath).readCpPluginConfigs();

	foreach(const CpPluginConfig &pluginConfig, pluginConfigs)  {

        CPFW_LOG(QLatin1String("Load plugin: ") + pluginConfig.mPluginFile + " from " + configPath);

		QList<CpSettingFormItemData*> itemDataList;

        //firstly, handle CpPluginInterface

		if (CpPluginInterface *plugin = CpPluginLoader().loadCpPlugin(pluginConfig.mPluginFile)) {

            CPFW_LOG("Load  root component CpPluginInterface succeed.");

			itemDataList = plugin->createSettingFormItemData(itemDataHelper);

		}

        //handle CpPluginPlatInterface

		else if (CpPluginPlatInterface *plugin = CpPluginLoader().loadPlatCpPlugin(pluginConfig.mPluginFile)) {

            CPFW_LOG("Load  root component CpPluginPlatInterface succeed.");

            CPFW_LOG("WARNING: CpPluginPlatInterface is deprecated. Please return CpPluginInterface from plugin.");

			CpSettingFormItemData *itemData = plugin->createSettingFormItemData(itemDataHelper);

			if (itemData) {

				itemDataList.append(itemData);

			}

		}

		else {

            CPFW_LOG(QLatin1String("Load plugin:") + pluginConfig.mPluginFile + QLatin1String(" failed."));

            #ifdef _DEBUG

              CPFW_LOG(QLatin1String("***Add a placeholder."));

              parent->appendChild(new CpPlaceHolderItemData(itemDataHelper,pluginConfig));

            #endif

		}

		if (itemDataList.count()) {

			foreach(CpSettingFormItemData *itemData,itemDataList) {

				if (itemData) {

					//append the new created setting form item to its parent item.

					parent->appendChild(itemData);

					if (CpCategorySettingFormItemData *categoryItemData 

						= qobject_cast<CpCategorySettingFormItemData*>(itemData)) {

						categoryItemData->initialize(itemDataHelper);

					}

					//set the description from config if it is empty.

					if (CpSettingFormEntryItemData *cpEntryItemData

						= qobject_cast<CpSettingFormEntryItemData*>(itemData)) {

						if (cpEntryItemData->text().isEmpty()) {

							cpEntryItemData->setText(pluginConfig.mDisplayName);

						}

						if (cpEntryItemData->description().isEmpty()) {

							cpEntryItemData->setDescription(pluginConfig.mDescription);

						}

					}

				}

			} //end foreach

		}

	} //end foreach

}

QStringList CpUtility::drives()

{

	static QStringList drives;

	if (drives.empty()) {

        CPFW_LOG("device drives:");

#ifdef WIN32

		drives.append("C:");

        CPFW_LOG("C:");

#else

		QFileInfoList fileInfoList = QDir::drives();

		foreach(const QFileInfo &fileInfo,fileInfoList) {

			QString str = fileInfo.filePath();

			if (str.length() > 2) {

				str = str.left(2);

			}

			drives.append(str);

            CPFW_LOG(str);

		}

#endif  

	}

	return drives;

}

static QStringList directoriesFromAllDrives(const QString &baseDir)

{

	QStringList dirs;

	QStringList drives = CpUtility::drives();

	foreach(const QString &drive,drives) {

		QString dir = drive + baseDir + QDir::separator();

		if (QFileInfo(dir).exists()) {

			dirs.append(dir);

            CPFW_LOG(dir);

		}

	}

	return dirs;

}

QStringList CpUtility::pluginDirectories()

{

	static QStringList dirs;

	if (dirs.empty()) {

        CPFW_LOG("ControlPanel plugin derectories:")

		dirs = directoriesFromAllDrives(CP_PLUGIN_PATH);

	}

	return dirs;

}

QStringList CpUtility::applicationPluginDirectories()

{

	static QStringList dirs;

	if (dirs.empty()) {

        CPFW_LOG("ControlPanel application plugin derectories:");

//		dirs = directoriesFromAllDrives(CP_APPLICATION_PLUGIN_PATH);

	}	

	return dirs;

}

QStringList CpUtility::configFileDirectories()

{

	static QStringList dirs;

	if (dirs.empty()) {

        CPFW_LOG("ControlPanel configuration file derectories:");

		dirs = directoriesFromAllDrives(CP_PLUGIN_CONFIG_PATH);

	}

	return dirs;

}