//////////////////////////////////////////////////////////////////////////////
// BASIC FUNCTIONS FOR COOKIE MANAGEMENT //
//////////////////////////////////////////////////////////////////////////////

var CGIBIN = "/cgi-bin/koha/";


var nameCookie = "bib_list";
var valCookie = readCookie(nameCookie);

if(valCookie){
    var arrayRecords = valCookie.split("/");
    if(arrayRecords.length > 0){
        var basketcount = arrayRecords.length-1;
    } else {
        var basketcount = "";
    }
} else {
        var basketcount = "";
}

function writeCookie(name, val, wd) {
    if (wd) {
        parent.opener.document.cookie = name + "=" + val;
    }
    else {
        parent.document.cookie = name + "=" + val;
    }
}

function readCookieValue (str, val_beg) {
    var val_end = str.indexOf(";", val_end);
    if (val_end == -1)
        val_end = str.length;
    return str.substring(val_beg, val_end);
}

function readCookie(name, wd) {
    var str_name = name + "=";
    var str_len = str_name.length;
    var str_cookie = "";
    if (wd) {
        str_cookie = parent.opener.document.cookie;
    }
    else {
        str_cookie = parent.document.cookie;
    }
        // fixed - getting the part of the basket that is bib_list
        var cookie_parts = str_cookie.split(";");
            for(var i=0;i < cookie_parts.length;i++) {
	            var c = cookie_parts[i];
                    while (c.charAt(0)==' ') c = c.substring(1,c.length);
		    if(c.indexOf(str_name) == 0) return c.substring(str_name.length,c.length);
            }
    return null;
}

function delCookie(name) {
    var exp = new Date();
    exp.setTime(exp.getTime()-1);
	if(parent.opener){
    parent.opener.document.cookie = name + "=null; expires=" + exp.toGMTString();
	} else {
	document.cookie = name + "=null; expires=" + exp.toGMTString();
	}
}

///////////////////////////////////////////////////////////////////
// SPECIFIC FUNCTIONS USING COOKIES //
///////////////////////////////////////////////////////////////////

function openBasket() {
    var strCookie = "";
    var nameCookie = "bib_list";
    var valCookie = readCookie(nameCookie);
    if ( valCookie ) {
        strCookie = nameCookie + "=" + valCookie;
    }

    if ( strCookie ) {
        var iW = 820;
        var iH = 450;
        var optWin = "dependant=yes,status=yes,scrollbars=yes,resizable=yes,toolbar=no,location=yes,height="+iH+",width="+iW;
        var loc = CGIBIN + "opac-basket.pl?" + strCookie;
        var basket = open(loc, "basket", optWin);
        if (window.focus) {basket.focus()}
    }
    else {
        showCartUpdate(MSG_BASKET_EMPTY);
    }
}

function addRecord(val, selection,NoMsgAlert) {
    var nameCookie = "bib_list";
    var valCookie = readCookie(nameCookie);
    var write = 0;

    if ( ! valCookie ) { // empty basket
        valCookie = val + '/';
        write = 1;
        updateBasket(1);
    }
    else {
        // is this record already in the basket ?
        var found = false;
        var arrayRecords = valCookie.split("/");
        for (var i = 0; i < valCookie.length - 1; i++) {
            if (val == arrayRecords[i]) {
                found = true;
                break;
            }
        }
        if ( found ) {
            if (selection) {
                return 0;
            }
            if (! NoMsgAlert ) {
                showCartUpdate(MSG_RECORD_IN_BASKET);
            }
        }
        else {
            valCookie += val + '/';
            write = 1;
            updateBasket(arrayRecords.length);
        }
    }

    if (write) {
        writeCookie(nameCookie, valCookie);
        if (selection) { // when adding a selection of records
            return 1;
        }
        if (! NoMsgAlert ) {
            showCartUpdate(MSG_RECORD_ADDED);
        }
    }
}

function AllAreChecked(s){
	if (! s.length)	{ return false;}
	var l = s.length;
	for (var i=0; i < l; i++) {
		if(! s[i].checked) { return false; }
	}
	return true;
}

function SelectAll(){
    if(document.bookbag_form.biblionumber.length > 0) {
		var checky = AllAreChecked(document.bookbag_form.biblionumber);
		var l = document.bookbag_form.biblionumber.length;
        for (var i=0; i < l; i++) {
            document.bookbag_form.biblionumber[i].checked = (checky) ? false : true;
        }
    }
}

function addMultiple(){
    var c_value = "";
    if(document.bookbag_form.biblionumber.length > 0) {
        for (var i=0; i < document.bookbag_form.biblionumber.length; i++) {
            if (document.bookbag_form.biblionumber[i].checked) {
                c_value = c_value + document.bookbag_form.biblionumber[i].value + "/";
            }
        }
        addSelRecords(c_value);
    } else {
        c_value = c_value + document.bookbag_form.biblionumber.value + "/";
        addSelRecords(c_value);
    }
}

function addSelRecords(valSel) { // function for adding a selection of biblios to the basket
                                                // from the results list
    var arrayRecords = valSel.split("/");
    var i = 0;
    var nbAdd = 0;
    for (i=0;i<arrayRecords.length;i++) {
        if (arrayRecords[i]) {
            nbAdd += addRecord(arrayRecords[i], 1);
        }
        else {
            break;
        }
    }
    var msg = "";
    if (nbAdd) {
        if (i > nbAdd) {
            msg = nbAdd+" "+MSG_NRECORDS_ADDED+", "+(i-nbAdd)+" "+MSG_NRECORDS_IN_BASKET;
        }
        else {
            msg = nbAdd+" "+MSG_NRECORDS_ADDED;
        }
    }
    else {
        if (i < 1) {
            msg = MSG_NO_RECORD_SELECTED;
        }
        else {
            msg = MSG_NO_RECORD_ADDED+" ("+MSG_NRECORDS_IN_BASKET+") !";
        }
    }
	showCartUpdate(msg);
}

function showCartUpdate(msg){
	// set body of popup window
	$("#cartDetails").html(msg);
	showCart();
	setTimeout("hideCart()",2000);	
}

function selRecord(num, status) {
    var str = document.myform.records.value
    if (status){
        str += num+"/";
    }
    else {
        str = delRecord(num, str);
    }

    document.myform.records.value = str;
}

function delSelRecords() {
    var recordsSel = 0;
    var end = 0;
    var nameCookie = "bib_list";
    var valCookie = readCookie(nameCookie, 1);

    if (valCookie) {
        var str = document.myform.records.value;
        if (str.length > 0){
            recordsSel = 1;
            var str2 = valCookie;
            while (!end){
                s = str.indexOf("/");
                if (s>0){
                    num = str.substring(0, s)
                    str = delRecord(num,str);
                    str2 = delRecord(num,str2);
                } else {
                    end = 1;
                }
            }

            if (str2.length == 0) { // equivalent to emptying the basket
                var rep = false;
                rep = confirm(MSG_CONFIRM_DEL_BASKET);
                if (rep) {
                    delCookie(nameCookie);
                    document.location = "about:blank";
                    updateBasket(0,top.opener);
                    window.close();
                } else {
                    return;
                }
            } else {
                writeCookie(nameCookie, str2, 1);
            }
        }
    }

    if (recordsSel) {
        var strCookie = "";
        var nameCookie = "bib_list";
        var valCookie = readCookie(nameCookie, 1);
        strCookie = nameCookie + "=" + valCookie;
        var arrayRecords = valCookie.split("/");
        updateBasket(arrayRecords.length-1,top.opener);
        document.location = CGIBIN + "opac-basket.pl?" + strCookie;
    }
    else {
        alert(MSG_NO_RECORD_SELECTED);
    }
}

function delRecord (n, s) {
    var re = /\d/;
    var aux = s;
    var found = 0;
    var pos = -1;

    while (!found) {
        pos = aux.indexOf(n, pos+1);
        var charAfter = aux.charAt(pos+n.length); // character right after the researched string
        if (charAfter.match(re)) { // record number inside another one
            continue;
        }
        else { // good record number
            aux = s.substring(0, pos)+ s.substring(pos+n.length+1, s.length);
            s = aux;
            found = 1;
        }
    }

    return s;
}


function delBasket() {
    var nameCookie = "bib_list";

    var rep = false;
    rep = confirm(MSG_CONFIRM_DEL_BASKET);
    if (rep) {
        delCookie(nameCookie);
        document.location = "about:blank";
        updateBasket(0,top.opener);
        window.close();
    }
}


function quit() {
    if (document.myform.records.value) {
        var rep = false;
        rep = confirm(MSG_CONFIRM_DEL_RECORDS);
        if (rep) {
            delSelRecords();
        }
    }
    updateBasket(arrayRecords.length-1,top.opener);
    window.close();
}

function sendBasket() {
    var nameCookie = "bib_list";
    var valCookie = readCookie(nameCookie);
    var strCookie = nameCookie + "=" + valCookie;

    var loc = CGIBIN + "opac-sendbasket.pl?" + strCookie;

    var optWin="dependant=yes,scrollbars=no,resizable=no,height=300,width=450,top=50,left=100";
    var win_form = open(loc,"win_form",optWin);
}

function printBasket() {
    var loc = document.location + "&print=1";
    document.location = loc;
}

function showMore() {
    var strCookie = "";

    var nameCookie = "bib_list";
    var valCookie = readCookie(nameCookie);
    if (valCookie) {
        strCookie = nameCookie + "=" + valCookie;
    }
    var loc = CGIBIN + "opac-basket.pl?" + strCookie + "&verbose=1";
    document.location = loc;
}

function showLess() {
    var strCookie = "";

    var nameCookie = "bib_list";
    var valCookie = readCookie(nameCookie);
    if (valCookie) {
        strCookie = nameCookie + "=" + valCookie;
    }
    var loc = CGIBIN + "opac-basket.pl?" + strCookie + "&verbose=0";
    document.location = loc;
}

function updateBasket(updated_value,target) {
	if(target){
	target.$('#basketcount').html("<span>"+updated_value+"</span>");
	target.$('#cartDetails').html(_("Your cart contains ")+updated_value+_(" items"));
	} else {
	$('#basketcount').html("<span>"+updated_value+"</span>");
	$('#cartDetails').html(_("Your cart contains ")+updated_value+_(" items"));
	}
	var basketcount = updated_value;
}

function openBiblio(dest,biblionumber) {
    openerURL=dest+"?biblionumber="+biblionumber;
    opener.document.location = openerURL;
    opener.focus();
}

function addSelToShelf() {
    var items = document.getElementById('records').value;
	if(items){
    document.location = "/cgi-bin/koha/opac-addbybiblionumber.pl?biblionumber="+items;
	} else {
        alert(MSG_NO_RECORD_SELECTED);
    }
}

///  vShelfAdd()  builds url string for multiple-biblio adds.

function vShelfAdd() {
        bibs= new Array;
        if(document.bookbag_form.biblionumber.length > 0) {
                for (var i=0; i < document.bookbag_form.biblionumber.length; i++) {
                        if (document.bookbag_form.biblionumber[i].checked) {
                                bibs.push("biblionumber=" +  document.bookbag_form.biblionumber[i].value);
                        }
                }
            return bibs.join("&");
        } else {
            if (document.bookbag_form.biblionumber.checked) {
                return "biblionumber=" + document.bookbag_form.biblionumber.value;
            }
        }
}

function showCart(){
		var position = $("#cartmenulink").offset({border: true,margin:false});
		var top = position.top + $("#cartmenulink").outerHeight();
		var left = position.left - 105;
		$("#cartDetails").css("position","absolute").css("top",top);
		$("#cartDetails").css("position","absolute").css("left",left);
		$("#cartDetails").fadeIn("fast",function(){
  			$("#cartDetails").dropShadow({left: 3, top: 3, blur: 0,  color: "#000", opacity: 0.1});
		});	
}

function hideCart(){
		 $(".dropShadow").hide();
		 $("#cartDetails").fadeOut("fast");
}

$("#cartDetails").ready(function(){
	$("#cartDetails,#cartmenulink").click(function(){ hideCart(); });
	$("#cartmenulink").click(function(){ openBasket(); return false; });
	$("#cartmenulink").hoverIntent(function(){
		showCart();
	},function(){
		hideCart();
	});
	if(basketcount){ updateBasket(basketcount) }
});