/**

 * Copyright (c) 2009-2010 Symbian Foundation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "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:

 * Contributors:

 */

/**

 * SysInfo.js

 * 

 * Web Runtime Service API emulation 

 * WRT v1.1

 * 

 */

(function(){

	var provider = 'Service.SysInfo' ,

		Interface = 'ISysInfo';

	var supportedEntitiesAndKeys = {

		"battery":{

			"batterystrength":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false},

			"chargingstatus":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true}

		},

		"connectivity":{

			"bluetooth":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true},

			"infrared":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true},

			"activeconnections":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":false},

			"connectionstatus":{"GetInfo":false,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false},

			"wlanmacaddress":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true}

		},

      	"device":{

			"firmwareversion":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"platformversion":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"producttype":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"manufacturer":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"machineid":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"phonemodel":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"imei":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true}

		},

      	"display":{

			"brightness":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"screensavertimeout":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"userinactivity":{"GetInfo":false,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false},

			"keyguardtime":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"autolocktime":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"autolockstatus":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true},

			"wallpaper":{"GetInfo":false,"SetInfo":true,"GetNotification":false,"GetInfoModeSync":false,"InputDataType":"string"},

			"lighttimeout":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"displayresolution":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"displayorientation":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true}

		},

      	"features":{

			"bluetooth":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"infrared":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"camera":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"memorycard":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"fmradio":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"qwerty":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"wlan":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"usb":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"pen":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"led":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"coverui":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"sidevolumekeys":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"vibra":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true}

		},

      	"general":{

			"accessorystatus":{"GetInfo":false,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false},

			"connectedaccessories":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"inputlanguage":{"GetInfo":true,"SetInfo":true,"GetNotification":true,"GetInfoModeSync":true},

			"supportedlanguages":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"predictivetext":{"GetInfo":true,"SetInfo":true,"GetNotification":true,"GetInfoModeSync":true},

			"vibraactive":{"GetInfo":true,"SetInfo":true,"GetNotification":true,"GetInfoModeSync":true},

			"availableusbmodes":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"activeusbmode":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"flipstatus":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true},

			"gripstatus":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true},

		},

      	"memory":{

			"driveinfo":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"listdrives":{"GetInfo":true,"SetInfo":false,"GetNotification":false,"GetInfoModeSync":true},

			"criticalmemory":{"GetInfo":false,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false},

			"memorycard":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true}

		},

      	"network":{

			"signalstrength":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false},

			"registrationstatus":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true},

			"networkmode":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":true},

			"currentnetwork":{"GetInfo":true,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false},

			"locationarea":{"GetInfo":false,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false},

			"cellid":{"GetInfo":false,"SetInfo":false,"GetNotification":true,"GetInfoModeSync":false}

		}

	  };

	/**

	 * SysInfo service

	 */

	var SysInfoService = function(){

		this.GetInfo 			= __GetInfo;

		this.SetInfo 			= __SetInfo;

		this.GetNotification 	= __GetNotification;

		this.Cancel 			= __Cancel;

	}

	device.implementation.extend(provider, Interface, new SysInfoService() );

	var	context = device.implementation.context,

		_t = context._t,

		method = '',

		result = false,

		DBase = null,

		default_device = 'default';

	/**

	 * SysInfo: GetInfo

	 * @param {Object} criteria

	 * @param {function} callback function for async call (optional)

	 */

	function __GetInfo(criteria, callback){

		var retVal = ValidateArguments("GetInfo",criteria,callback);

		if(retVal.ErrorCode != 0)

		{

			return retVal;

		}

		//	Async call

		if (typeof callback == 'function') {

			return context.callAsync(this, arguments.callee, criteria, callback);

		}

		DBase = context.getData(provider);

		var returnValue = DBase;

		returnValue = returnValue[criteria.Entity.toLowerCase()][criteria.Key.toLowerCase()];

		returnValue.Key = criteria.Key;

		returnValue.Entity = criteria.Entity;

		if(/^Connectivity$/i.test(criteria.Entity)&& /^ActiveConnections$/i.test(criteria.Key))

		{

			var temp = returnValue.ConnectionList;

			returnValue.ConnectionList = context.Iterator(temp);

		}

		else if(/^General$/i.test(criteria.Entity)&& /^ConnectedAccessories$/i.test(criteria.Key))

		{

			var temp = returnValue.AccessoryList;

			returnValue.AccessoryList = context.Iterator(temp);			

		}

		else if(/^Memory$/i.test(criteria.Entity)&& /^DriveInfo$/i.test(criteria.Key))

		{

			try {

				var temp = criteria.SystemData.Drive;

				if(temp.length > 3)

				{

					temp = temp.substring(0,3);

				}

				temp= returnValue.Drive[temp.toUpperCase()];

				if (!temp) {

					return error(device.implementation.ERR_BAD_ARGUMENT_TYPE, msg.no_msg);

				}

				var driveInfo = new Object();

				driveInfo.Key = returnValue.Key;

				driveInfo.Entity = returnValue.Entity;

				driveInfo.DriveInfo = temp;

				return context.Result(driveInfo);

			}

			catch(err)

			{

				return error(device.implementation.ERR_BAD_ARGUMENT_TYPE, msg.no_msg);

			}

		}

		return context.Result(returnValue);

	}

	/**

	 * SysInfo: SetInfo

	 * @param {Object} criteria

	 * @param {function} callback function for async call (optional)

	 */

	function __SetInfo(criteria, callback){

		var retVal = ValidateArguments("SetInfo",criteria,callback);

		if(retVal.ErrorCode != 0)

		{

			return retVal;

		}

		//	Current implementation support only for 'General' -> 'InputLanguage' || 'PredictiveText'

		if (/^General$/i.test(criteria.Entity) && ( /^InputLanguage$/i.test(criteria.Key) || /^PredictiveText/i.test(criteria.Key) || /^VibraActive/i.test(criteria.Key))) {

			//	get the DBase data

			DBase = context.getData(provider);

			var returnValue = DBase;

			//	Check the 'SupportedLanguages' entries for Setting the new Status

			if (/^InputLanguage$/i.test(criteria.Key)) {

				var found = false;

				var languageList = returnValue['general']['supportedlanguages']['LanguageList'];

				for (var key in languageList) {

					if (languageList[key] == criteria.SystemData.Status) {

						found = true;

					}

				}

				//	Update the 'InputLanguage' if the value value found in the ['SupportedLanguages']

				if (found) 

					returnValue[criteria.Entity.toLowerCase()][criteria.Key.toLowerCase()]['Status'] = criteria.SystemData.Status;

				else 

					return error(device.implementation.ERR_SERVICE_NOT_SUPPORTED, msg.not_supported);

			}

			else if (/^PredictiveText$/i.test(criteria.Key)) {

				if (criteria.SystemData.Status == 0 || criteria.SystemData.Status == 1) 

					returnValue[criteria.Entity.toLowerCase()][criteria.Key.toLowerCase()]['Status'] = criteria.SystemData.Status;

				else 

					return error(device.implementation.ERR_NOT_FOUND, msg.badType);

			}

			else if (/^VibraActive$/i.test(criteria.Key)) {

				if (criteria.SystemData.Status == 0 || criteria.SystemData.Status == 1) 

					returnValue[criteria.Entity.toLowerCase()][criteria.Key.toLowerCase()]['Status'] = criteria.SystemData.Status;

			}

			else {

				return error(device.implementation.ERR_SERVICE_NOT_SUPPORTED, msg.not_supported);

			}

		}

		else if(/^Display/i.test(criteria.Entity) && /^Wallpaper/i.test(criteria.Key)) {

			if(typeof criteria.SystemData.StringData == 'undefined')

				return error(device.implementation.ERR_MISSING_ARGUMENT, msg.missingArgs);

			returnValue[criteria.Entity.toLowerCase()][criteria.Key.toLowerCase()]['StringData'] = criteria.SystemData.StringData;

			return context.ErrorResult(device.implementation.ERR_SUCCESS);

		}

		return context.Result(result);

	}

	/**

	 * SysInfo: GetNotification

	 * @param {Object} criteria

	 * @param {function} callback function for async call

	 */

	function __GetNotification(criteria, callback){

		var retVal = ValidateArguments("GetNotification",criteria,callback);

		if(retVal.ErrorCode != 0)

		{

			return retVal;

		}

		// unsupported

		if (!/^(Battery|Memory)$/i.test(criteria.Entity) ||

			!/^(BatteryStrength|ChargingStatus|MemoryCard)$/i.test(criteria.Key)) {

			context.notify(_t('%s:: GetNotification : entity %s, key %s not implemented in preview.').arg(provider, criteria.Entity, criteria.Key));

			// register callback anyway so Cancel works. 

		}

		// evenType = 'entity.key'

		var eventType = criteria.Entity+'.'+criteria.Key;

		// process notify

		return context.addListener(provider, eventType, criteria, callback, notifyHandler);

	}

	function notifyHandler(transactionID, criteria, callback, data){

		var result,

			eventCode = {completed:2, error:4, progress:9},

			code = eventCode.progress;

		try{

			DBase = context.getData(provider);

			var entity = criteria.Entity.toLowerCase(),

				key = criteria.Key.toLowerCase();

			// make a copy of return value

			var returnValue = context.extend({},DBase[entity][key]);

			// augment with data

			context.extend(returnValue, data);

			result = context.Result(returnValue);

		} 

		catch(e){

			code = eventCode.error;

		}

		callback(transactionID, code, result);

	}

	/**

	 * SysInfo: Cancel

	 * @param {Object} criteria

	 */

	function __Cancel(criteria){

		method = 'Cancel';

		if (!criteria || !criteria.TransactionID)

			return error(device.implementation.ERR_MISSING_ARGUMENT, msg.missingTID);

		var found = context.removeListener(provider, null, criteria.TransactionID);

		if (!found)

			return error(device.implementation.ERR_NOT_FOUND);

		else

			return context.ErrorResult(device.implementation.ERR_SUCCESS);

	}

	/*******************************

	 * helper functions

	 *******************************/

	function error(code, msg /*, args...*/){

		var args = ['SysInfo',method].concat([].slice.call(arguments,2));

		msg = msg ? _t().arg.apply(msg,args) : undefined;

		return context.ErrorResult(code, msg);

	}

	function cancelRegisteredNotify(result)

	{

		__Cancel({'TransactionID':result.TransactionID});

		method = 'GetNotification';

	}

	/** 

	 * error messages

	 * order of %s args: Service name, method name, parameter name 

	 */

	var msg = {

		badType				: '%s: %s: Type is invalid',

		badSysInfo			: '%s: %s: SysInfoName is invalid',

		missingSysInfo		: '%s: %s: SysInfoName is missing',

		missingTID 			: '%s: %s: Transaction ID missing',

		not_supported 		: '%s: %s: Not Supported',

		is_invalid			: '%s: %s: Is invalid',

		missingArgs			: '%s: %s: SystemData Argument Missing',

		inSufficientArgs	: '%s: %s: Insufficient Arguments to process',

		missingInputParam	: '%s: %s: Input Parameter Missing',

		not_supportedSyncVer: '%s: %s: Sync Version Not Supported',

		noEntity			: '%s: %s: Entity: Input Parameter Missing',

		noKey				: '%s: %s: Key: Input Parameter Missing',

		IncorrectSytemData	: '%s: %s: Incorrect SystemData Type, SystemData Must be a Map',

		callbackNotFound	: '%s: %s: Callback object not found',

		commandNotFound		: '%s: %s: Command Not Supported',

		unsupInterface		: 'SysInfo:Requested interface not supported by the provider',

		no_msg				: '%s: %s: '

	};

	/**

	 * Common validator for all functions

	 * 	 

	 *  

	 * @param {arguments} function name and arguments of calling function

	 * @return {Result} Error object

	 */		

	  function ValidateArguments(funName,criteria,callback)

	  {

	  	method = funName;

		try {

			if (/^GetNotification$/i.test(funName) && typeof callback != "function") {

				return error(device.implementation.ERR_BAD_ARGUMENT_TYPE, msg.not_supportedSyncVer);

			}

			if (typeof criteria == "undefined" || typeof criteria.Entity == "undefined" || typeof criteria.Key == "undefined") {

				return error(device.implementation.ERR_MISSING_ARGUMENT, msg.inSufficientArgs);

			}

			if (criteria.Entity == "") {

				return error(device.implementation.ERR_MISSING_ARGUMENT, msg.noEntity);

			}

			if (criteria.Key == "") {

				return error(device.implementation.ERR_MISSING_ARGUMENT, msg.noKey);

			}

			if (/^SetInfo$/i.test(funName)) {

				if (typeof criteria.SystemData == "undefined" || criteria.SystemData == '') {

					return error(device.implementation.ERR_MISSING_ARGUMENT, msg.missingArgs);

				}

				if (typeof criteria.SystemData.StringData == "undefined" && typeof criteria.SystemData.Status == "undefined") {

					return error(device.implementation.ERR_MISSING_ARGUMENT, msg.missingArgs);

				}

			}

			if (typeof supportedEntitiesAndKeys[criteria.Entity.toLowerCase()] == 'undefined' || typeof supportedEntitiesAndKeys[criteria.Entity.toLowerCase()][criteria.Key.toLowerCase()] == 'undefined') {

				return error(device.implementation.ERR_NOT_FOUND, msg.no_msg);

			}

			if (!supportedEntitiesAndKeys[criteria.Entity.toLowerCase()][criteria.Key.toLowerCase()][funName]) {

				return error(device.implementation.ERR_NOT_FOUND, msg.no_msg);

			}

			if (funName == "GetInfo" && !supportedEntitiesAndKeys[criteria.Entity.toLowerCase()][criteria.Key.toLowerCase()]["GetInfoModeSync"] && typeof callback != "function") {

				return error(device.implementation.ERR_MISSING_ARGUMENT, msg.not_supportedSyncVer);

			}

			return context.ErrorResult(device.implementation.ERR_SUCCESS, "");

		}

		catch(err){

			return error(device.implementation.ERR_BAD_ARGUMENT_TYPE, msg.badType);

		}

	  }

}) ()