var GroupsFormValidate = Class.create({
	
	config: null,
	done_focus: false,
	flight_forms: [],
	
	ix: null, // used as suffix for form input element 'name' attribute
  initialize: function( config, current_ix ) {
  	this.config = config;
		this.ix = ( current_ix ? current_ix : 1 );

		// probably should attach blur event to this as well:
		// R_ARC

		// attach validation		
		Event.observe('R_NAME', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_NAME'}) );
		Event.observe('R_ADDRESS1', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_ADDRESS1'}) );
		Event.observe('R_SUBURB', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_SUBURB'}) );
		Event.observe('R_CONTACT_PERSON', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_CONTACT_PERSON'}) );
		Event.observe('R_STATE', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_STATE'}) );
		Event.observe('R_PHONE1', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_PHONE1'}) );
		Event.observe('R_GROUP_NAME', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_GROUP_NAME'}) );
		Event.observe('R_GROUP_TYPE', 'change', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_GROUP_TYPE'}) );
		Event.observe('R_GROUP_TYPE', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'R_GROUP_TYPE'}) );
		Event.observe('R_EMAIL', 'blur', this.checkValueEntered.bindAsEventListener(this, {fieldname:'R_EMAIL',isEmail:true}) );
		
		Event.observe('RT_FROM_1', 'change', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_FROM_1'}) );
		Event.observe('RT_FROM_1', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_FROM_1'}) );
		Event.observe('RT_TO_1', 'change', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_TO_1'}) );
		Event.observe('RT_TO_1', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_TO_1'}) );
		Event.observe('RT_NO_PASS_1', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_NO_PASS_1'}) );
		Event.observe('RT_TIME_1', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_TIME_1'}) );

		Event.observe('captcha', 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'captcha'}) );
		
		
		
		$('R_NAME').focus();
				
  },
	
	checkForm: function() {
		
		this.done_focus = false;
		var ret_val = true;
		ret_val = this.checkValueEntered( null, {fieldname:'R_ADDRESS1'} );
		ret_val = this.checkValueEntered( null, {fieldname:'R_SUBURB'} );
		ret_val = this.checkValueEntered( null, {fieldname:'R_CONTACT_PERSON'} );
		ret_val = this.checkValueEntered( null, {fieldname:'R_STATE'} );
		ret_val = this.checkValueEntered( null, {fieldname:'R_PHONE1'} );
		ret_val = this.checkValueEntered( null, {fieldname:'R_GROUP_NAME'} );
		ret_val = this.checkValueEntered( null, {fieldname:'R_GROUP_TYPE'} );
		ret_val = this.checkValueEntered( null, {fieldname:'R_EMAIL', isEmail:true} );
		ret_val = this.checkValueEntered( null, {fieldname:'RT_TIME_1'} );

		ret_val = this.checkValueEntered( null, {fieldname:'RT_FROM_1'} );
		ret_val = this.checkValueEntered( null, {fieldname:'RT_TO_1'} );
		ret_val = this.checkValueEntered( null, {fieldname:'RT_NO_PASS_1'} );
		ret_val = this.checkValueEntered( null, {fieldname:'RT_TIME_1'} );
		ret_val = this.checkValueEntered( null, {fieldname:'captcha'} );

		// validate extra flights
		for( var i=2; i<21; i++ ) {
			if( $('RT_FROM_'+i) ) {
				ret_val = this.checkValueEntered( null, {fieldname:'RT_FROM_'+i} );
				ret_val = this.checkValueEntered( null, {fieldname:'RT_TO_'+i} );
				ret_val = this.checkValueEntered( null, {fieldname:'RT_NO_PASS_'+i} );
				ret_val = this.checkValueEntered( null, {fieldname:'RT_TIME_'+i} );
			}
		}

		if( ! ret_val ) {
			// show form error dialog
			alert('Please fill out all required fields.');
			// Dialog.alert("Test of alert panel, check out debug window after closing it", {width:300, height:100, okLabel: "close", ok:function(win) {debug("validate alert panel"); return true;}});
			/*
			var timeout; 
			function openInfoDialog() { 
				Dialog.info("Test of info panel, it will close <br>in 3s ...", {width:250, height:100, showProgress: true}); 
				timeout=3; 
				setTimeout(infoTimeout, 1000) } 
				function infoTimeout() { 
					timeout--; 
					if (timeout >0) { 
						Dialog.setInfoMessage("Test of info panel, it will close <br>in " + timeout + "s ...") 
						setTimeout(infoTimeout, 1000) 
					} else {
						Dialog.closeInfo() 
					} 
				openInfoDialog();
			*/
		}
		
		return ret_val;
	},
  
	/**
	 * @param Event
	 * @param { fieldname:'myFieldName', isEmail:true } 
	 */
	checkValueEntered: function( evt, config ) {
		var ret_val = true;
		var errdiv;
		try {
			if( lbl = $('label_' + config.fieldname) ) {
				errdiv = lbl.previous();
			}
		}catch(err) {
			return true;
		}
		if( errdiv ) {
			var ok = true;
			var emailvalue = $F(config.fieldname);
			ok = emailvalue.length > 0;
			if( config.isEmail ) {
				ok = this.emailCheck(emailvalue);
			} 
			if( ok ) {
				Effect.Fade(errdiv, {duration: (Prototype.Browser.IE ? 0 : 0.5) } );
			} else {
				Effect.Appear(errdiv, {duration: (Prototype.Browser.IE ? 0 : 0.5) } );
				ret_val = false;
				if( ! this.done_focus ) {
					this.done_focus = true;
					// $(config.fieldname).focus();
				}
			}
		}
		return ret_val;
	},
	
	
  addAnotherFlightForm: function() {
  	
  	if( this.ix > 20 ) {
			alert(" You can only add a maximum of 20 destinations! ");
  		return;
  	}
  	
  	this.ix++;
		$$('.removeFlightFormLink').each( function(el) {
			Event.stopObserving( el, '' );
			// el.hide();
			Effect.Fade(el);
		});
  	
  	new Ajax.Updater('writerow', '/apps/sf/index.php/groupquote/addAnotherFlight/fn/' + this.ix, {
		  insertion: Insertion.Before,
		  onComplete: function(evt) {
				// attach validation
				Event.observe('RT_FROM_'+this.ix, 'change', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_FROM_'+this.ix}) );
				Event.observe('RT_FROM_'+this.ix, 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_FROM_'+this.ix}) );
				Event.observe('RT_TO_'+this.ix, 'change', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_TO_'+this.ix}) );
				Event.observe('RT_TO_'+this.ix, 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_TO_'+this.ix}) );
				Event.observe('RT_NO_PASS_'+this.ix, 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_NO_PASS_'+this.ix}) );
				Event.observe('RT_TIME_'+this.ix, 'blur', this.checkValueEntered.bindAsEventListener(GroupsFormValidate, {fieldname:'RT_TIME_'+this.ix}) );
				// $('box_form_' + this.ix).show();
				Effect.Appear( 'box_form_' + this.ix );
		  }.bind(this)
		});
  },
  removeFlightForm: function(el) {
		Effect.Fade( el, {
			afterFinish: function(evt) {
				Element.remove(el);
			}
		});

		this.ix--;

		// show last 'Remove Flight' link
		var els = [];
		$$('.removeFlightFormLink').each( function(el) {
			els.push( el );
		});
		var done = false;
		for( var i=els.length; i>-1; i-- ) {
			if( els[i] ) {
				if( ! done ) {
					done = 1;
				} else {
					Effect.Appear( els[i] );
					// els[i].show();
					break;
				}
			}
		}

  },

	emailCheck: function (emailStr) {
		/* The following pattern is used to check if the entered e-mail address
		   fits the user@domain format.  It also is used to separate the username
		   from the domain. */
		var emailPat=/^(.+)@(.+)$/
		/* The following string represents the pattern for matching all special
		   characters.  We don't want to allow special characters in the address. 
		   These characters include ( ) < > @ , ; : \ " . [ ]    */
		var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
		/* The following string represents the range of characters allowed in a 
		   username or domainname.  It really states which chars aren't allowed. */
		var validChars="\[^\\s" + specialChars + "\]"
		/* The following pattern applies if the "user" is a quoted string (in
		   which case, there are no rules about which characters are allowed
		   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
		   is a legal e-mail address. */
		var quotedUser="(\"[^\"]*\")"
		/* The following pattern applies for domains that are IP addresses,
		   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
		   e-mail address. NOTE: The square brackets are required. */
		var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
		/* The following string represents an atom (basically a series of
		   non-special characters.) */
		var atom=validChars + '+'
		/* The following string represents one word in the typical username.
		   For example, in john.doe@somewhere.com, john and doe are words.
		   Basically, a word is either an atom or quoted string. */
		var word="(" + atom + "|" + quotedUser + ")"
		// The following pattern describes the structure of the user
		var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
		/* The following pattern describes the structure of a normal symbolic
		   domain, as opposed to ipDomainPat, shown above. */
		var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
		
		
		/* Finally, let's start trying to figure out if the supplied address is
		   valid. */
		
		var errormsg = '';
		
		/* Begin with the coarse pattern to simply break up user@domain into
		   different pieces that are easy to analyze. */
		var matchArray=emailStr.match(emailPat)
		if (matchArray==null) {
		  /* Too many/few @'s or something; basically, this address doesn't
		     even fit the general mould of a valid e-mail address. */
			//alert("Email address seems incorrect (check @ and .'s)")
			errormsg += "" + "- Email address seems incorrect (check @ and .'s)\n"
			return false
		}
		var user=matchArray[1]
		var domain=matchArray[2]
		
		// See if "user" is valid 
		if (user.match(userPat)==null) {
		    // user is not valid
		    //alert("The username doesn't seem to be valid.")
			errormsg += "" + "- The email username doesn't seem to be valid.\n"
		    return false
		}
		
		/* if the e-mail address is at an IP address (as opposed to a symbolic
		   host name) make sure the IP address is valid. */
		var IPArray=domain.match(ipDomainPat)
		if (IPArray!=null) {
		    // this is an IP address
			  for (var i=1;i<=4;i++) {
			    if (IPArray[i]>255) {
			        //alert("Destination IP address is invalid!")
					errormsg += "" + "- Destination email IP address is invalid!.\n"
				return false
			    }
		    }
		    return true
		}
		
		// Domain is symbolic name
		var domainArray=domain.match(domainPat)
		if (domainArray==null) {
			//alert("The domain name doesn't seem to be valid.")
			errormsg += "" + "- The email domain name doesn't seem to be valid.\n"
		    return false
		}
		
		/* domain name seems valid, but now make sure that it ends in a
		   three-letter word (like com, edu, gov) or a two-letter word,
		   representing country (uk, nl), and that there's a hostname preceding 
		   the domain or country. */
		
		/* Now we need to break up the domain to get a count of how many atoms
		   it consists of. */
		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.
		   //alert("The address must end in a three-letter domain, or two letter country.")
		   errormsg += "" + "- The email  address must end in a three-letter domain, or two letter country.\n"
		   return false
		}
		
		// Make sure there's a host name preceding the domain.
		if (len<2) {
		   //var errStr="This address is missing a hostname!"
		   errormsg += "" + "- This email address is missing a hostname!\n"
		   //alert(errStr)
		   return false
		}
		
		// If we've gotten this far, everything's valid!
		return true;
	}
  
});