/*********************************************************
Set of JavaScript functions used throughout the database
**********************************************************/
/***********************************************************
validateNumber()
This function checks that the value of a field is a number
and, optionally within a certain range.
Arguments:
val = Value to be checked
min = Optional minimum allowed value
max = Optional maximum allowed value
************************************************************/
function ValidateNumber(val, min, max){
	if ( isNaN(val) ) return false;
	if ( min && val < min ) return false;
	if ( max && val > max ) return false;
	return true;
}
/***********************************************************
dateComponents()
This function splits a date in to the day, month and year 
components, depending on the format supplied. Used by Date 
Validation routine.
Arguments:
obj = Input whose value is to be checked
format = date format, ie mm/dd or dd/mm
************************************************************/
function dateComponents(dateStr, format) {
	var results = new Array();
	var datePat = /^(\d{1,2})(\/|-|\.)(\d{1,2})\2(\d{2}|\d{4})$/;
	var matchArray = dateStr.match(datePat);
	
	if (matchArray == null) { 
		return null; 
	}
	//check for two digit (20th century) years and prepend 19.
	matchArray[4] = (matchArray[4].length == 2) ? '19' + matchArray[4] : matchArray[4];
	// parse date into variables
	if (format.charAt(0)=="d"){ //what format does the server use for dates? 
		results[0] = matchArray[1];
		results[1] = matchArray[3];
	} else { 
		results[1] = matchArray[1];
		results[0] = matchArray[3]; }
	results[2] = matchArray[4];
	return results;
}
/***********************************************************
valiDate()
This function checks that the value of a date is in the 
correct format and, optionally, within a certain range.
Arguments:
obj = Input whose value is to be checked
min = Optional minimum allowed value
max = Optional maximum allowed value
format = date format, ie mm/dd or dd/mm
************************************************************/
function valiDate(obj, min, max, format){
	
	dateBits = dateComponents(obj.value, format);
	if (dateBits == null) return false;
//Check it is a valid date first
	day = dateBits[0];
	month = dateBits[1];
	year = dateBits[2];
	if ((month < 1 || month > 12) || (day < 1 || day > 31)) { // check month range 
		return false;
	} 
	if ((month==4 || month==6 || month==9 || month==11) && day==31) {
		return false;
	}
	if (month == 2) {
	// check for february 29th 
		var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)); 
		if (day>29 || (day==29 && !isleap)) {
			return false;
		}
	} 
//Now check whether a range is specified and if in bounds
	var theDate = new Date(dateBits[2], parseInt(dateBits[1]) - 1, dateBits[0]);
	if ( min ) {
		minBits = dateComponents (min, format);
		var minDate = new Date(minBits[2], parseInt(minBits[1]) - 1, minBits[0]);
		if ( minDate.getTime() > theDate.getTime() ) return false;
	} 
	if ( max) {
		maxBits = dateComponents (max, format);
		var maxDate = new Date(maxBits[2], parseInt(maxBits[1]) - 1, maxBits[0]);
		if ( theDate.getTime() > maxDate.getTime() ) return false;
	}
	return true;
}
/***********************************************************
validateEmail()
This function checks that the value of a field is a valid 
SMTP e-mail address ie x@xx.xx
Arguments:
obj = Input whose value is to be checked
Origianl source:
http://javascript.internet.com
Author:
Sandeep V. Tamhankar (stamhankar@hotmail.com)
Note: Work in progress = validate SMTP OR Notes Canonical
************************************************************/
function ValidateEmail(obj){
var emailStr=obj.value;
var emailPat=/^(.+)@(.+)$/
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
var validChars="\[^\\s" + specialChars + "\]"
var quotedUser="(\"[^\"]*\")"
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
var atom=validChars + '+'
var word="(" + atom + "|" + quotedUser + ")"
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
	return false
}
var user=matchArray[1]
var domain=matchArray[2]
// See if "user" is valid 
if (user.match(userPat)==null) {
    return false
}
// make sure the IP address is valid
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
		return false
	    }
    }
    return true
}
var domainArray=domain.match(domainPat)
if (domainArray==null) {
    return false
}
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
   return false
}
// Make sure there's a host name preceding the domain.
if (len<2) {
   return false
}
// If we've gotten this far, everything's valid!
return true;
}
/***********************************************************
dateComponents()
This function splits a date in to the day, month and year 
components, depending on the format supplied. Used by Date 
Validation routine.
Arguments:
obj = Input whose value is to be checked
format = date format, ie mm/dd or dd/mm
************************************************************/
function dateComponents(dateStr, format) {
	var results = new Array();
	var datePat = /^(\d{1,2})(\/|-|\.)(\d{1,2})\2(\d{2}|\d{4})$/;
	var matchArray = dateStr.match(datePat);
	
	if (matchArray == null) { 
		return null; 
	}
	//check for two digit (20th century) years and prepend 19.
	matchArray[4] = (matchArray[4].length == 2) ? '19' + matchArray[4] : matchArray[4];
	// parse date into variables
	if (format.charAt(0)=="d"){ //what format does the server use for dates? 
		results[0] = matchArray[1];
		results[1] = matchArray[3];
	} else { 
		results[1] = matchArray[1];
		results[0] = matchArray[3]; }
	results[2] = matchArray[4];
	return results;
}
/***********************************************************
OnFailure()
This function returns the failure message to the user and
sets focus on the input in question.
Arguments:
obj = Input element on which to return focus
lbl = Field Label to prepend on to the message
msg = Array value for message to give the user
************************************************************/
function OnFailure( obj, lbl, msg ){
	var msgs = new Array();
	msgs["text"] = "يجب تعبئة خانة ";
	msgs["textarea"] = " يجب تعبئة خانة ";
	msgs["select-one"] = "يجب إختيار إحدى الخيارات ";
	msgs["select-multiple"] = "يجب إختيار إختيار على الأقل ";
	msgs["checkbox"] = "يجب إختيار ";
	msgs["radio"] = "يجب إختيار ";
	msgs["number"] = " خانة رقمية\n\n يجب تعبئة خانة ";
	msgs["date"] = " خانة تاريخ\n\n يجب تعبئة خانة ";
	msgs["email"] = " is an address field. \n\nPlease enter a valid e-mail address.";
	if(msg[1]	|| msg[2]){ //upper/lower bound ranges have been specified
		if(msg[1]	&& msg[2]){//range
 			term = ( msg[0] == "date" )? " ("+msg[4]+")" : "";
	if ( msg[1] ) {
		minBits = DateComponents (msg[1], msg[4]);
		var minDate = new Date(minBits[2], parseInt(minBits[1]) - 1, minBits[0]);
alert(minDate)		
} 
	
			alert( msgs[msg[0]]+"\""+ lbl+"\"" + term + " بين " + msg[1] + " و " + msg[2]);
		} else if (msg[1]) {//lower bound
			term = ( msg[0] == "number" ) ? " إكبر من " : " (" + msg[4] + ") بعد ";
			alert(  msgs[msg[0]]+ lbl+ term + msg[1]);
		} else {//upper bound
			term = ( msg[0] == "number" )? " أقلّ " : " (" + msg[4] + ") قبل ";
			alert( msgs[msg[0]] +lbl+ term + msg[2]);
		}
	} else {//no range given
		alert("\""+msgs[msg[0]]+"\""+lbl);
	}
	
	obj.focus();
	return false;
}
/***********************************************************
isSomethingSelected()
This function is passed an object of type redio group or check
box. It then loops through all options and checks that 
one of them is selected, returning true if so.
Arguments:
obj = Reference to the parent object of the group.
************************************************************/
function isSomethingSelected( obj ){
	for (var r=0; r < obj.length; r++){
		if ( obj[r].checked ) return true;
	}
}
/***********************************************************
validateRequiredFields()
This function is passed an array of fields that are required
to be filled in and iterates through each ensuring they have
been correctly entered.
************************************************************/
function validateRequiredFields( f, a ){
	for (var i=0; i < a.length; i++){
		e = a[i][0];
			//checks input types: "text","select-one","select-multiple","textarea","checkbox","radio"
				switch (e.type) {
					case "text":
							if ( trim(e.value) == "" ) return OnFailure(e, a[i][1], ["text"]);
							if ( a[i][2] ) {
								switch ( a[i][2][0] ){
									case "number":
										if ( !ValidateNumber(e.value, a[i][2][1], a[i][2][2]) ) return OnFailure(e, a[i][1], ["number", a[i][2][1], a[i][2][2]]);
										break
									case "date":
										if ( !ValiDate(e, a[i][2][1], a[i][2][2], a[i][2][3]) ) return OnFailure(e, a[i][1], ["date", a[i][2][1], a[i][2][2], a[i][2][3], a[i][2][4]]);
										break
									case "email":
										if ( !ValidateEmail(e) ) return OnFailure(e, a[i][1], ["email"]);
										break
									default:
										break
								}
							}
						break
					case "textarea":
					if ( trim(e.value) == "" ) return OnFailure(e, a[i][1], ["textarea"]);
						break
					case "select-one":
					if ( e.selectedIndex == 0 ) return OnFailure(e, a[i][1], ["select-one"]);
						break
					case "select-multiple":
					if (e.selectedIndex == -1) return OnFailure(e, a[i][1], ["select-multiple"]);
						break
					default:
						//must be a checkbox or a radio group if non of above
						switch (e[0].type) {
								case "checkbox":
								if ( !isSomethingSelected( e ) )  return OnFailure(e[0], a[i][1], ["checkbox"]);
							break
							case "radio":
								if ( !isSomethingSelected( e ) )  return OnFailure(e[0], a[i][1], ["radio"]);
								break
								default:
									break
							}
						break
				}
	}
	return true;
}
/***********************************************************
doSubmit is used to submit the document back to the server
Arguments:
f = object reference to the document's form to be validated
v = whether or not to do the validation before submitting
a = array of fields to validate [including label and format]
************************************************************/
function doSubmit(f, v, a){
	if ( v ){
		if ( validateRequiredFields( f, a ) ){ 
			return true;
		}else{
			return false;
		}
	} else {
		return true;
	}
}
//Functions not involved in the validation.............
/***********************************************************
doDelete is used to delete the from the server
The user is first asked to confirm that this is what they
want to do. Giving them the chance to cancel the action.
This works SIMPLY by changing the end of the URL from 
"?OpenDocument" to "?DeleteDocument"
************************************************************/
function doDelete() {
	if ( confirm('Are you sure you want to delete this document?') ){
		location.search = "?DeleteDocument";
	}
}
/***********************************************************
trim is a simple function to remove leading/trailing spaces
************************************************************/
function trim(aStr) {
	return aStr.replace(/^\s{1,}/, "").replace(/\s{1,}$/, "")
}
/***********************************************************
following two functions call the date picking dialog box
************************************************************/
function myDateDialog(){
	var retDay;
	var retMonth;
	var retYear;
}
function openDatePickerDialog(wnd, field, dateFormat) {
	myDateDialog.retDay="";
	myDateDialog.retMonth="";
	myDateDialog.retYear="";
	var pathname = window.location.pathname;
	var dlgURL = pathname.substring(0,(pathname.lastIndexOf(".nsf") + 5))+'dlgDatePicker?OpenForm';
	if(wnd.showModalDialog(dlgURL,myDateDialog,"dialogHeight:380px;dialogWidth:280px;center")==true){
		field.value=dateFormat.replace(/yyyy/, myDateDialog.retYear).replace(/mm/, myDateDialog.retMonth).replace(/dd/, myDateDialog.retDay);
	}else{
		return;
	}
}