/*
**	@desc:	PHP ajax login form using jQuery
**	@author:	programmer@chazzuka.com
**	@url:		http://www.chazzuka.com/blog
**	@date:	15 August 2008
**	@license:	Free!, but i'll be glad if i my name listed in the credits'
*/

$(document).ready(function(){ 

	var wrapperId 	=	'#wrapper';		// main container
	var waitId		=	'#wait';		// wait message container
	var formId		=	'#frmLogin';	// submit button identifier
	var userId		=	'#u';			// user input identifier
	var passId		=	'#p';			// password input identifier
	var codeId		=	'#c';			// code input identifier
	
	var waitNote	=	'Loading...';											// loading message
	var jsErrMsg	=	'User or password is not valid';						// clientside error message
	var jsErrCode	=	'Code is not valid';						            // clientside error message
	
	var postFile	=	'login.post.php';	// post handler
	
	var autoRedir	=	false;			// auto redirect on success
	
	// hide first
	$(waitId).hide(); $(wrapperId).hide();
	
	// FirstLoad
	$(waitId).html(waitNote).fadeIn('fast',function(){
		// get request to load form
		$.getJSON(postFile, function(data){
			
			if(data.status==true) {
				// status is authorized
				if(autoRedir){ 
					$(waitId).hide().html('Redirecting...').fadeIn('fast', function(){window.location=data.url;});
				} else {
					$(waitId).fadeOut('slow', function(){ $(wrapperId).html(data.message).slideDown(); }).html();
				}
			} else {
				// show form
				$(wrapperId).html(data.message).slideDown('slow',function(){
					// hide  message
					$(waitId).fadeOut('fast',function(){
						
						//*/ submit handler
						$("#frmlogin").submit( function() { 
							// loading
							$(waitId).html(waitNote).fadeIn();
								
							var _u = $(userId).val();	// form user
							var _p = $(passId).val();	// form id
							var _c = $(codeId).val();	// form code
							
							//@ valid user ( modify as needed )
							if(_u.length<3) 
								{
									$(waitId).html(jsErrMsg).fadeIn('fast',function(){ 
										$(userId).focus();
									});
								} 
							else
								{
									//@ valid password ( modify as needed )
									if(_p.length<4)
										{
											$(waitId).html(jsErrMsg).fadeIn('fast',function(){ 
												$(passId).focus();
											});
										}
									else
										{
											if(_c.length != 5)
											{
												$(waitId).html(jsErrCode).fadeIn('fast',function(){ 
													$(codeId).focus();
												});
											}
											else
											{
												$.post(postFile, { u: _u, p: _p ,c: _c}, function(data) {
													if(data.status==true){ 
														if(autoRedir){ 
															$(waitId).html('Redirecting...').fadeIn('fast', function(){
																window.location=data.url;
															});
														} else {
															$(waitId).fadeOut('slow', function(){ 
																$(wrapperId).slideUp('slow',function(){
																	$(this).html(data.message).slideDown();
																}); 
															}).html();
														}
													} else {
														$(waitId).html(data.message).slideDown('fast', function(){ 
															$(userId).focus(); 
														}); 
													}
												}
												,'json');
											}	
										}
								}
								return false;
						});				
						//*/
						$(userId).focus();
					}).html();
				});
				
			}
			
		 });
	});
});