//Book Class
var bookList;

function BookDetails ()
{
	this.initialise =  initialise;;
	this.generateViewHTML = generateViewHTML;
	this.setFieldValue = setFieldValue;
	this.getImageURL = getImageURL;
	this.listNumber;
	this.quantity;
	this.generateDocumentHTML = generateDocumentHTML;
	this.createCartActions = createCartActions;
	this.generateContribHTML = generateContribHTML;
	this.generateCategoryHTML = generateCategoryHTML;
	this.clone = clone;
	this.isInCart = false;						//wether we are in the cart yet or not
	this.roundPrice = roundPrice;
	
	function clone(s) {
		for(p in s)
		this[p] = (typeof(s[p]) == 'object')? new clone(s[p]) : s[p];
	}

	function roundPrice ()
	{
		var rightDigit;
		var incremented = false;
		
		if (this.price.toString().indexOf(".") > 0)
		{
			//Decimals so round the price		
		
			//round it to 2 decimalplaced
			this.price = this.price.toString().substring (0, this.price.toString().indexOf (".")+ 3) *1;
		
			rightDigit = this.price.toString().substring (this.price.toString().length -1) * 1;
 			if (rightDigit > 0 && rightDigit < 5)
			{ 
				rightDigit = 5;
			}
		
			if (rightDigit > 5)
			{
				rightDigit = 0;
				incremented = true;
			}
		
  			var nPrice = (this.price.toString().substring(0, this.price.toString().length-1)+ rightDigit) * 1;
		
			if (incremented == true)
			{
				//We need to add .1 to the price this will increment the rest
				nPrice = nPrice + .1;
			}
		
			this.price = nPrice;
			}
	}
	
	//sets the field values form the entered xml doc
	function initialise (cDoc)
	{
		this.quantity = 0;
		var fieldName = "";
		var fieldValue = "";
		
		//first lets default all our values to "" incase we never set them
		this.ean = "";
		this.isbn = "";
		this.title = "";
		this.price = 0;
		this.description = "";
		this.unid = "";
		this.contributor1 = "";
		this.contributor1Role = "";
		this.contributor2 = "";
		this.contributor2Role = "";
		this.contributor3 = "";
		this.contributor3Role = "";
		this.shortTitle = "";
		this.publisher="";
		this.publicationDate="";
		this.binding="";
		this.bisac1="";
		this.bisac2="";
		this.bisac3="";
		this.series="";
		this.imageLocation="";
				
		this.viewDescription = "";  //this is a shorter version of product description - so if the description is massive we dont pollute the view
		
		var entryData = cDoc.getElementsByTagName ("entrydata");
		var valNode;
		for (var i=0; i < entryData.length; i++){
			fieldName = entryData[i].getAttribute("name");
			for (var j=0; j<entryData[i].childNodes.length; j++)
			{
				if (entryData[i].childNodes[j].nodeValue != "\n") valNode = entryData[i].childNodes[j]
			}
			if (valNode.firstChild)
			{
				fieldValue = valNode.firstChild.nodeValue;
			}else
			{
				//empty value
				fieldValue = "";
			}
			this.setFieldValue (fieldName, fieldValue);
		} //end for	
		
		//check if we're in the cart
		cart.isMember (this);		
		
	} //end initialiseProduct

	function setFieldValue (fieldName, fieldValue)
	{
		//based on the field name (case statement) we set the required variable, add a case for
		//each variable we need.
		switch (fieldName.toUpperCase())
		{
			case "TITLE":
				this.title = fieldValue.replace (/'/g, "&#39;");
				break;
			case "EAN":
				this.ean = fieldValue;
				break;
			case "CONTRIBUTOR1":
				this.contributor1 = fieldValue.replace (/'/g, "&#39;");
				break;
			case "CONTRIBUTOR1ROLE":
				this.contributor1Role = fieldValue.replace (/'/g, "&#39;");
				break;
			case "CONTRIBUTOR2":
				this.contributor2 = fieldValue.replace (/'/g, "&#39;");
				break;
			case "CONTRIBUTOR2ROLE":
				this.contributor2Role = fieldValue.replace (/'/g, "&#39;");
				break;
			case "CONTRIBUTOR3":
				this.contributor3 = fieldValue.replace (/'/g, "&#39;");
				break;
			case "CONTRIBUTOR3ROLE":
				this.contributor3Role = fieldValue.replace (/'/g, "&#39;");
				break;
			case "DESCRIPTION":
				this.Description = fieldValue.replace (/'/g, "&#39;");
				this.viewDescription = fieldValue.slice (0, 150).replace (/'/g, "&#39;");
				if (this.Description.length > 150)
				{
					this.viewDescription += " ... ";
				}
				break;
			case "PRICE":
				this.price = fieldValue * 1;
				this.price = this.price / 1.73;  //original value
				this.price = this.price * 1.70;	 //new price multiplier - change this as needed
				this.roundPrice ();
				break;
			case "ISBN":
				this.isbn = fieldValue;
				break;	
			case "UNID":
				this.unid=fieldValue;
				break;
			case "SHORTTITLE":
				this.shortTitle=fieldValue.replace (/'/g, "&#39;");
				break;
			case "PUBLISHER":
				this.publisher=fieldValue.replace (/'/g, "&#39;");
				break;
			case "PUBLICATIONDATE":
				this.publicationDate=fieldValue;
				break;
			case "BINDINGTYPE":
				this.binding=fieldValue.replace (/'/g, "&#39;");
				break;
			case "BISAC1":
				this.bisac1=fieldValue.replace (/'/g, "&#39;");
				break;
			case "BISAC2":
				this.bisac2=fieldValue.replace (/'/g, "&#39;");
				break;
			case "BISAC3":
				this.bisac3=fieldValue.replace (/'/g, "&#39;");
				break;			
			case "SERIES":
				this.series=fieldValue.replace (/'/g, "&#39;");
				break;
			case "IMAGELOCATION":
				this.imageLocation=fieldValue.replace (/'/g, "&#39;");
				break;
			default:
				//nothing
	
		} //end switch
	} //end setFieldValue
	
	function createCartActions ()
	{
		var addToCart = "<a href=\"#\" onClick=\"cart.addToCart (documentList[" + this.listNumber + "]); hideDocumentBox (); return false;\">Add to cart </a>";
		var removeFromCart = "<a href=\"#\" onClick=\"cart.removeFromCart (documentList[" + this.listNumber + "]); hideDocumentBox (); return false;\">Remove from cart </a>";
		
		var html;
		if (cart.isMember (this)) 
		{
			html = removeFromCart;
		}else
		{
			html = addToCart;
		}
		
		html += sp + sp + "<a href=\"#\" onClick=\"hideDocumentBox (); return false;\"> Close <a>";	
		
		return  html;
	}
		
	function generateDocumentHTML ()
	{
		//header
		html = htmlStartTag ("table", "", "", "") + "<tr><td>" + htmlStartTag ("div", "FloatLeft noImageBG", "", "") + this.getImageURL () + de;
		html += "</td><td>"
		html += htmlStartTag ("div", "ContentHeader", "", "") + this.title+ de;
		//main document details
		html += htmlStartTag ("span", "ViewDocument", "", "") + htmlStartTag ("span", "bold", "", "") + "EAN:" +se +sp + this.ean + sp + sp + sp 
		html += htmlStartTag ("span", "bold", "", "") + "ISBN:" + se + sp + this.isbn + se + "<br>";
		html += htmlStartTag ("span", "ViewDocument", "", "");
		html += htmlStartTag ("span", "bold", "", "") + "Price:" +se+sp+  formatCurrency(this.price) + " (ex-GST)<br>";
		html += htmlStartTag ("span", "bold", "", "") + "Publisher:" +se+sp + this.publisher+"<br>";
		html += htmlStartTag ("span", "bold", "", "") + "Publication Date:" +se+sp + this.publicationDate + "<br>";
		html += htmlStartTag ("span", "bold", "", "") + "Binding:" +se+sp+ this.binding + se + ce + re + te;
		html += htmlStartTag ("span", "ViewDocument", "", "");
		html += this.generateContribHTML () + "<br><br>" ;
		html += htmlStartTag ("span", "bold", "", "") + "Summary:" + se + "<br>";		
		html += this.Description  + "<br><br>";
		html += htmlStartTag ("span", "bold", "", "") + "BISAC Categories:" +se + "<br>" + this.generateCategoryHTML ();
		if (this.series != "") 
		{
		html += "<br><br>" + htmlStartTag ("span", "bold", "", "") + "Series:" +se + "<br>" 
		html +=	"<a href='#' onClick='resetScreen (); vPosition=1; viewName=\"vw.Eastend.WebAllBySeries\"; retrieveViewDocuments (\"" +this.series+"\"); return false;'>"+this.series+"</a>";;
		}		
		html += se;
				
		html += htmlStartTag ("div", "ShoppingCartActions", "", "" ) + this.createCartActions () + de;
	
	
		return html;
	}// end generateDocumentHTML 
	
	
	function generateViewHTML (itemNumber)
	{
		var html = "";
		html = htmlStartTag ("table", "", "", "viewDoc" + itemNumber) + "<tr>";
		
		html +=  "<td><div class='FloatLeft noImageBG'>" + this.getImageURL () + "</div><span class= 'ContentHeader ViewDocument'><a href='#' onclick='loadDocument(\"" + this.unid + "\", true, \"DocumentDetails\", \"viewDoc" + itemNumber + "\"); return false;'>" + this.shortTitle+ "</a>" +"</span><br>";
		html += "<span class='ViewDocument'>" + "EAN:" +sp+ this.ean+ "<br>"
		html +=  "Price:" +sp+ formatCurrency(this.price) + " (ex-GST)<br>";
		html += "Publication Date:" +sp + this.publicationDate + "<br>"+ ce + re;
		html += "<tr><td><span class='ViewDocument'>"+this.generateContribHTML () + "<br><br>";
		html += this.viewDescription  + "</span>";
		html += ce;
		
		html += re + te;
		return html;	
	} // end generateViewHTML

	function getImageURL ()
	{
		var imgURL = "";
		var itemNumber = this.listNumber + 1;
		var src = "";
		
		if (this.imageLocation == "") 
		{
			src="/ImagesDIR/"+ this.ean +".jpg";
		}else
		{
		 src = this.imageLocation;
		}
		//imgURL = "<img alt='" + this.shortName + "' src='" + webImagePath + "/im.WebSite.NoImage' />";
		imgURL = "<img class=\"hidden\" id=\"img" + this.listNumber + "\" alt='" + this.shortTitle + "' src='" + src + "' onclick=\"loadDocument('" + this.unid + "', true, 'DocumentDetails', 'viewDoc" + itemNumber + "'); return false;\" onLoad=\"checkImageFound (document.getElementById ('img" + this.listNumber + "')); return false;\"/>";
		return imgURL;
	} // end getImageURL
	function generateContribHTML ()
	{
		var contribHTML ="<span class='bold'>Contributor(s):</span><br>";
		
		if (this.contributor1Role && this.contributor1) contribHTML += "<a href='#' onClick='resetScreen (); vPosition=1; viewName=\"vw.Eastend.WebAllByContrib\"; retrieveViewDocuments (\""+ this.contributor1 +"\"); return false;'>"+ this.contributor1 +sp+ "("+ this.contributor1Role +")</a>";
		if (this.contributor2Role && this.contributor2) contribHTML += "," + sp + sp + "<a href='#' onClick='resetScreen (); vPosition=1; viewName=\"vw.Eastend.WebAllByContrib\"; retrieveViewDocuments (\""+ this.contributor2 +"\"); return false;'>"+ this.contributor2 +sp+ "("+ this.contributor2Role +")</a>";
		if (this.contributor3Role && this.contributor3) contribHTML += "," + sp + sp + "<a href='#' onClick='resetScreen (); vPosition=1; viewName=\"vw.Eastend.WebAllByContrib\"; retrieveViewDocuments (\""+ this.contributor3 +"\"); return false;'>"+ this.contributor3 +sp+ "("+ this.contributor3Role +")</a>";

		return (contribHTML);
	} // end generateContribHTML
	function  generateCategoryHTML ()
	{
			var bisacHTML = "";
			if (this.bisac1) bisacHTML += "<a href='#' onClick='resetScreen (); vPosition=1; viewName=\"vw.Eastend.WebAllByCategory\"; retrieveViewDocuments (\"" +this.bisac1+"\"); return false;'>"+this.bisac1+"</a>";
			if (this.bisac2) bisacHTML += "," + sp + sp +"<a href='#' onClick='resetScreen (); vPosition=1; viewName=\"vw.Eastend.WebAllByCategory\"; retrieveViewDocuments (\"" +this.bisac2+"\"); return false;'>"+this.bisac2+"</a>";
			if (this.bisac3) bisacHTML += "," + sp + sp +"<a href='#' onClick='resetScreen (); vPosition=1; viewName=\"vw.Eastend.WebAllByCategory\"; retrieveViewDocuments (\"" +this.bisac3+"\"); return false;'>"+this.bisac3+"</a>";
			
			return (bisacHTML);
	} //end generateCategoryHTML
}