//-----------------------
//  CLX AICC Communicator Class
//  by Caspar Noetzli / Andy Haeberli
//  www.crealogix.com
//  vs. 0.2  2004-09-28
// ----------------------
//
//---------------------------
//  CLX_aicc_communicator Constructor
//---------------------------
CLX_aicc_communicator = function (objRef, communicationDebugMode) {
	// objRef ist eine Referenz zum CLX_Translator bzw. zum aufrufenden Object
	this.refTranslator = objRef;
	this.communicationDebugMode = communicationDebugMode;
	this.version = "v2004-03-04-001_clx";
};
//---------------------------
//  CLX_aicc_communicator getVersion
//---------------------------
CLX_aicc_communicator.prototype.getVersion = function() {
	return ("CLX AICC Communicator Class Version:   "+this.version);
};
//---------------------------
//  CLX_aicc_communicator init
//---------------------------
CLX_aicc_communicator.prototype.init = function() {
	// Help: Schnittstelle
	if (this.communicationDebugMode == true) {
		commtrace("Schnittstelle AICC gefunden");
	}	
	// URL aus FlashVars
	this.url = unescape(_root.url);
	commtrace("Diese URL wurde empfangen: "+this.url)
	//
	this.aicc_session_id = 0;
	this.aicc_version = 3.5; // wird vom LMS nicht geliefert (CMI Guidelines for AICC Rev. 3.5)
	this.aicc_catcher_uri = 0;
	this.parseURL();
	this.userData = new Object();	
	this.userData.error = "noValue";	
	this.userData.error_text = "noValue";
	this.userData.student_id = "noValue";	
	this.userData.student_name = "noValue";
	this.userData.lesson_location = "noValue";
	this.userData.lesson_status = "noValue";
	this.userData.score = "noValue";
	this.userData.time = "noValue";
	this.userData.core_lesson = "noValue";
	if (this.aicc_session_id == 0 ||  this.aicc_catcher_uri == 0) {
		// Help: Parameter aus URL
		if (this.communicationDebugMode == true) {
			commtrace("Keine oder nicht alle URL-Parameter geparst");
		}
		this.refTranslator.initCallback(1);		
	} else {
		// Help: Parameter aus URL
		if (this.communicationDebugMode == true) {
			commtrace("URL-Parameter geparst");
		}
		this.refTranslator.initCallback(0);		
	}
};
//---------------------------
//  CLX_aicc_communicator parseURL
//---------------------------
CLX_aicc_communicator.prototype.parseURL = function() {
	var tURL_array = this.url.split("?");
	var tParam_array = tURL_array[1].split("&");
	for (var i = 0; i < tParam_array.length; i++ ) {
		var tProp_array = tParam_array[i].split('='); 
		if (tProp_array[0].toLowerCase() == 'aicc_sid' ) {
		      this.aicc_session_id = tProp_array[1];
		}
		if (tProp_array[0].toLowerCase() == 'aicc_url' ) {
			this.aicc_catcher_uri = tProp_array[1];
		}
	}
	if (this.communicationDebugMode == true) {
		commtrace("AICC Session ID: "+this.aicc_session_id);
		commtrace("AICC Catcher URI: "+this.aicc_catcher_uri);
		commtrace("AICC Version: "+this.aicc_version);
	}
};
//---------------------------
//  CLX_aicc_communicator getUserData
//---------------------------
CLX_aicc_communicator.prototype.getUserData = function() {
	/*
	// Alte Version
	requestUrl = this.aicc_catcher_uri;
	requestUrl += "?command=GetParam&version="+this.aicc_version+"&session_id="+this.aicc_session_id+"&AICC_Data=";
	loadVariablesNum(requestUrl, 0, "POST");	
	*/
	// ev. Reihenfolge wechseln
	this.communication_lv = new LoadVars();
	this.communication_lv.refObj = this; // ev Probleme mit anderen LMS (TopClass)
	this.communication_lv.command = "GetParam";
	this.communication_lv.version = this.aicc_version;
	this.communication_lv.session_id = this.aicc_session_id;
	this.communication_lv.AICC_Data = "";
	this.communication_lv.onLoad = this.dataLoaded;
	this.communication_lv.sendAndLoad(this.aicc_catcher_uri, this.communication_lv, "Post");	
	// Help: Get-String-Ausgabe (Aufbau und Inhalt)
	if (this.communicationDebugMode == true) {
		commtrace("Folgender PutString (GetParam) an das LMS gesendet:")
		commtrace (unescape(this.communication_lv.toString()));
	}
};
//---------------------------
//  CLX_aicc_communicator setUserData
//---------------------------
CLX_aicc_communicator.prototype.setUserData = function() {
	/*
	// Alte Version
	requestUrl = this.aicc_catcher_uri;
	requestUrl += "?command=GetParam&version="+this.aicc_version+"&session_id="+this.aicc_session_id+"&AICC_Data=";
	requestUrl += "%5BCore%5D"+"%0D%0A"+"Lesson_Location"+"%3D"+escape(this.userData.lesson_location)+"%0D%0A"+"Lesson_Status"+"%3D"+escape(this.userData.lesson_status)+"%0D%0A"+"Score"+"%3D"+escape(this.userData.score)+"%0D%0A"+"Time"+"%3D"+escape(this.userData.time);
	requestUrl += "%0D%0A"+"%5BCore_Lesson%5D"+"%0D%0A"+escape(this.userData.core_lesson);
	loadVariablesNum(requestUrl, 0, "POST");
	*/
	// AICC_Data formatieren -> ev. Probleme mit der URL-kodierung
	var AICC_Data_str = "[core]\r\n";
	AICC_Data_str += "lesson_location="+this.userData.lesson_location+"\r\n";
	AICC_Data_str += "lesson_status="+this.userData.lesson_status+"\r\n";
	AICC_Data_str += "score="+this.userData.score+"\r\n";
	AICC_Data_str += "time="+this.userData.time+"\r\n";
	AICC_Data_str += "[core_lesson]\r\n";
	AICC_Data_str += this.userData.core_lesson;
	//	
	// ev. Reihenfolge wechseln
	this.communication_lv = new LoadVars();
	this.communication_lv.refObj = this; // ev Probleme mit anderen LMS (TopClass)
	this.communication_lv.command = "PutParam";
	this.communication_lv.version = this.aicc_version;
	this.communication_lv.session_id = this.aicc_session_id;
	this.communication_lv.AICC_Data = AICC_Data_str;
	this.communication_lv.onLoad = this.dataLoaded;
	
	this.communication_lv.sendAndLoad(this.aicc_catcher_uri, this.communication_lv, "Post");
	// Help: Get-String-Ausgabe (Aufbau und Inhalt)
	if (this.communicationDebugMode == true) {
		commtrace("An folgende URL wurden die Daten geschickt:")
		commtrace(this.aicc_catcher_uri)
		commtrace("Folgender PutString (PutParam) an das LMS gesendet:")
		commtrace (unescape(this.communication_lv.toString()));
	}
};
//---------------------------
//  CLX_aicc_communicator exitUserData
//---------------------------
CLX_aicc_communicator.prototype.connectionExit = function() {
	/*
	// Alte Version
	requestUrl = this.aicc_catcher_uri;
	requestUrl += "?command=ExitAU&version="+this.aicc_version+"&session_id="+this.aicc_session_id+"&AICC_Data=";
	loadVariablesNum(requestUrl, 0, "POST");
	*/
	// ev. Reihenfolge wechseln
	this.communication_lv = new LoadVars();
	this.communication_lv.refObj = this; // ev Probleme mit anderen LMS (TopClass)
	this.communication_lv.command = "ExitAU";
	this.communication_lv.version = this.aicc_version;
	this.communication_lv.session_id = this.aicc_session_id;
	this.communication_lv.AICC_Data = "";
	this.communication_lv.onLoad = this.dataLoaded;
	this.communication_lv.sendAndLoad(this.aicc_catcher_uri, this.communication_lv, "Post");
	// Help: Get-String-Ausgabe (Aufbau und Inhalt)
	if (this.communicationDebugMode == true) {
		commtrace("Folgender PutString (ExitAU) an das LMS gesendet:")
		commtrace (unescape(this.communication_lv.toString()));
	}
};
//---------------------------
//  CLX_aicc_communicator dataLoaded
//---------------------------
CLX_aicc_communicator.prototype.dataLoaded = function(ok) {
	if(ok) {
		var result = "error="+this.error;
		// Help: Result-Ausgabe
		if (this.refObj.communicationDebugMode == true) {
			commtrace("Folgende Daten vom LMS erhalten:")
			commtrace (result);
		}
		//		
		this.refObj.parseUserData(result);
	} else {
		// Help: Fehler-Ausgabe
		if (this.refObj.communicationDebugMode == true) {
			commtrace("Ladevorgang fehlerhaft");
		}
		if (this.command == "GetParam") {
			this.refObj.refTranslator.getUserDataCallback(1);
		} else if (this.command == "PutParam") {
			this.refObj.refTranslator.setUserDataCallback(1);
		} else if (this.command == "ExitAU") {
			this.refObj.refTranslator.connectionExitCallback(1);
		}
	}

	
};
//---------------------------
//  CLX_aicc_communicator parseUserData
//---------------------------
CLX_aicc_communicator.prototype.parseUserData = function(result) {	
	// String vom LMS wird ev. codiert übermittelt -> Probleme mit dem Parsen
	var tResult = unescape(result);
	var tResult_array = tResult.split("\n");
	for (i=0; i<tResult_array.length; i++) {
		// Zeilenumbrüche und Spaces entfernen
		tResult_array[i] = tResult_array[i].replace("\r", "");
		tResult_array[i] = tResult_array[i].replace("\n", "");
		tResult_array[i] = tResult_array[i].replace(" ", "");
		tResult_array[i] = escape(tResult_array[i]);
		tResult_array[i] = tResult_array[i].replace("%0D", "");
		tResult_array[i] = tResult_array[i].replace("%0A", "");
		tResult_array[i] = tResult_array[i].replace("%20", "");
		tResult_array[i] = unescape(tResult_array[i]);
		// core_lesson
		if (tResult_array[i].toLowerCase() == "[core_lesson]") {
			this.userData.core_lesson = tResult_array[i+1];
			this.userData.core_lesson = this.userData.core_lesson.replace("suspend_data=", "");
			
			// String vom LMS enthält ev. (Leer)Zeichen am Anfang -> Probleme mit dem XML-parsen
			// Workaround: String wird am Anfang und Ende gekürzt			
			var tStart = this.userData.core_lesson.indexOf("<trackingdata>");
			if (tStart > -1) {
				this.userData.core_lesson = this.userData.core_lesson.slice(tStart);
				commtrace("Core_Lesson: Start -> "+tStart+". Zeichen");
			}
			
			var tEnd = this.userData.core_lesson.indexOf("</trackingdata>");
			if (tEnd > -1) {
				this.userData.core_lessont = this.userData.core_lesson.slice(0, tEnd+15);				
				commtrace("Core_Lesson: Ende -> "+tEnd+15+". Zeichen");
			}
		} else {
			var tResultRow_array = tResult_array[i].split("=");
			// error
			if (tResultRow_array[0].toLowerCase() == "error") {
				this.userData.error = tResultRow_array[1];
			}			
			// error_text
			if (tResultRow_array[0].toLowerCase() == "error_text") {
				this.userData.error_text = tResultRow_array[1];
			}			
			// studend_id
			if (tResultRow_array[0].toLowerCase() == "student_id") {
				this.userData.student_id = tResultRow_array[1];
			}			
			// student_name
			if (tResultRow_array[0].toLowerCase() == "student_name") {
				this.userData.student_name = tResultRow_array[1];
			}
			// lesson_location
			if (tResultRow_array[0].toLowerCase() == "lesson_location") {
				this.userData.lesson_location = tResultRow_array[1];
			}			
			// lesson_status
			if (tResultRow_array[0].toLowerCase() == "lesson_status") {
                if(tResultRow_array[1] == "notattempted") {
                    this.userData.lesson_status = "not attempted";
                } else {
                    this.userData.lesson_status = tResultRow_array[1];
                }
			}
			// score
			if (tResultRow_array[0].toLowerCase() == "score") {
				this.userData.score = tResultRow_array[1];
			}
			// time
			if (tResultRow_array[0].toLowerCase() == "time") {
				this.userData.time = tResultRow_array[1];
			}
			
		}
	}
	// Help: Get-Parameter-Ausgabe
	if (this.communicationDebugMode == true) {
		commtrace("Folgende Daten vom LMS geparst:");
		commtrace("Error: "+this.userData.error);
		commtrace("Errortext: "+this.userData.error_text);
		commtrace("Student-ID: "+this.userData.student_id);
		commtrace("Student Name: "+this.userData.student_name);
		commtrace("Lesson Location: "+this.userData.lesson_location);
		commtrace("Lesson Status: "+this.userData.lesson_status);
		commtrace("Score: "+this.userData.score);
		commtrace("Time: "+this.userData.time);
		commtrace("Core Lesson: "+this.userData.core_lesson);
	}
	//
	if (this.communication_lv.command == "GetParam") {
		this.refTranslator.getUserDataCallback(this.userData.error);
	} else if (this.communication_lv.command == "PutParam") {
		this.refTranslator.setUserDataCallback(this.userData.error);
	} else if (this.communication_lv.command == "ExitAU") {
		this.refTranslator.connectionExitCallback(this.userData.error);
	}
};
//
//---------------------------
//  CLX_aicc_communicator getError
//---------------------------
CLX_aicc_communicator.prototype.getError = function() {
	return this.userData.error;
};
//---------------------------
//  CLX_aicc_communicator getError_text
//---------------------------
CLX_aicc_communicator.prototype.getError_text = function() {
	return this.userData.error_text;
};
//---------------------------
//  CLX_aicc_communicator getStudent_id
//---------------------------
CLX_aicc_communicator.prototype.getStudent_id = function() {
	return this.userData.student_id;
};
//---------------------------
//  CLX_aicc_communicator getStudent_name
//---------------------------
CLX_aicc_communicator.prototype.getStudent_name = function() {
	return this.userData.student_name;
};
//---------------------------
//  CLX_aicc_communicator setLesson_location
//---------------------------
CLX_aicc_communicator.prototype.setLesson_location = function(whichValue) {
	this.userData.lesson_location = whichValue;
};
//---------------------------
//  CLX_aicc_communicator getLesson_location
//---------------------------
CLX_aicc_communicator.prototype.getLesson_location = function() {
	return this.userData.lesson_location;
};
//---------------------------
//  CLX_aicc_communicator setLesson_status
//---------------------------
CLX_aicc_communicator.prototype.setLesson_status = function(whichValue) {
	this.userData.lesson_status = whichValue;
};
//---------------------------
//  CLX_aicc_communicator getLesson_status
//---------------------------
CLX_aicc_communicator.prototype.getLesson_status = function() {
	return this.userData.lesson_status;
};
//---------------------------
//  CLX_aicc_communicator setScore
//---------------------------
CLX_aicc_communicator.prototype.setScore = function(whichValue) {
	this.userData.score = whichValue;
};
//---------------------------
//  CLX_aicc_communicator getScore
//---------------------------
CLX_aicc_communicator.prototype.getScore = function() {
	return this.userData.score;
};
//---------------------------
//  CLX_aicc_communicator setTime
//---------------------------
CLX_aicc_communicator.prototype.setTime = function(whichValue) {
	this.userData.time = whichValue;
};
//---------------------------
//  CLX_aicc_communicator getTime
//---------------------------
CLX_aicc_communicator.prototype.getTime = function() {
	return this.userData.time;
};
//---------------------------
//  CLX_aicc_communicator setLesson_data
//---------------------------
CLX_aicc_communicator.prototype.setLesson_data = function(whichValue) {
	this.userData.core_lesson = whichValue;
};
//---------------------------
//  CLX_aicc_communicator getCore_lesson
//---------------------------
CLX_aicc_communicator.prototype.getLesson_data = function() {
	return this.userData.core_lesson;
};