var Login = new GELogin();

// Set up the popup login dialog, in case it's needed.
$( document ).ready( function() { Login.PopupLoginPrep(); } );


//
// GELogin 'class'
//
function GELogin() {

	var ThisLogin = this;      // Closure variable, so we can still refer to this object when inside an AJAX callback function.

			this.LoggedIn      = false;
		this.LoginType     = '';   // Can be: MyAccount, MailingList, or Guest.
		this.LoginIdentity = '';   // Will be set to the user's login email in the case of a MyAccount login.
	
	//
	// Attempt to log the user into their My Account.
	//
		this.MyAccountLogin = function( LoginParameters, SuccessCallback, FailureCallback ) {
		// TEMPORARY: Add the AJAX flag to the login parameters, until that is no longer required by the AJAX login PHP script.
		LoginParameters.AJAXLogin = true;
		$.ajax({
			url: '/myaccount/attempt_myaccount_login.php',
			type: 'POST',
			dataType: 'json',
			data: LoginParameters,
			timeout: 15000,   // 15 seconds.
			success: function( response ) {
				RevertButton( 'PopupLoginButton', ThisLogin.PopupAttemptLogin );
				if ( response.FailedLogin ) {
//					SimpleMessage( "We\'re sorry, but those login details don\'t seem to match our records. Perhaps you\'d like to try again?" );
					SimpleMessage( "We're sorry, but those login details don't match our records. Perhaps you'd like to try again?<br><br>" +
					               "Note that even if you're an existing Ground Effect customer, you still need to first register with a login email and password before creating your on-line account. " +
					               "<span style=\"text-decoration: underline\" onclick=\"GoToRegistration()\">Click here</span> to register.<br><br>" +
					               "Alternatively you can continue to browse the site and use the shopping cart as a guest or using your customer number.", "Login Error" );
					FailureCallback( 'FailedLogin' );
				} else if ( response.ErrorMessage ) {
					FailureCallback( response.ErrorMessage );
				} else if ( ! response.LoginEmail ) {
					FailureCallback();
				} else {
					ThisLogin.LoggedIn      = true;
					ThisLogin.LoginType     = 'MyAccount';
					ThisLogin.LoginIdentity = response.LoginEmail;
					// If the user logged in (even automatically) while on a /stayintouch/ page, we need to get them out of there and into /myaccount/.
					if ( window.location.href.match( '^[^/]*//[^/]*/stayintouch/' ) ) {
						// If they were on one of the pages that has an analogue in the MyAccount section, go specifically to that corresponding one.
						if ( window.location.href.match( '^[^/]*//[^/]*/stayintouch/spread_the_word.php' ) ) {
							setTimeout( "window.location.href = '/myaccount/spread_the_word.php'", 0 );
						} else if ( window.location.href.match( '^[^/]*//[^/]*/stayintouch/contact-us.php' ) ) {
							setTimeout( "window.location.href = '/myaccount/contact_us.php'", 0 );
						} else {
							// Go to default page for the MyAccount section.
							setTimeout( "window.location.href = '/myaccount/'", 0 );
						}
					} else if ( window.location.href.match( '^[^/]*//[^/]*/spread_the_word/logmein' ) ) {
												setTimeout( "window.location.href = '/myaccount/spread_the_word.php'", 0 );
					} else {
						ThisLogin.ShowLoginDetails();
					}
					SuccessCallback();
				}
			},
			error: function ( XMLHttpRequest, textStatus, errorThrown ) {
				RevertButton( 'PopupLoginButton', ThisLogin.PopupAttemptLogin );
				if ( textStatus == 'timeout' ) {
					// Because the login attempt will continue and possibly succeed in the background,
					// we fire off a 'chaser' here to try to nullify it (to avoid confusing the user by later showing them as logged in).
					$.ajax({ url: '/myaccount/cancel_login.php', type: 'POST' });
					if ( LoginParameters.AutoLogin ) {
						// SimpleMessage( 'Just FYI, we tried to log you in but struck a database problem.', 'DB Timeout' );
					} else {
						SimpleMessage( 'Sorry, we\'re having touble talking to the database. Can\'t log you in right now.', 'DB Timeout' );
					}
				} else {
					SimpleMessage( 'Error (MyAccount Login) : ' + textStatus, 'Error' );
				}
				FailureCallback( textStatus );
			}
		});
	}

	this.LPLogin = function() {
		alert( 'LPLogin attempted' );
	}
	
	this.ShowLoginDetails = function() {
		// If there is a login indicator span available in the navbar (it is omitted on some pages), update it now to show the login details.
		$( '#LoginIndicator' ).html( ThisLogin.LoginIdentity + ' <a href="http://www.groundeffect.co.nz/myaccount/">my account</a> | <a href="http://www.groundeffect.co.nz/myaccount/logout.php">log off</a>' );
	}
	
	this.MyAccountAutoLogin = function() { ThisLogin.MyAccountLogin( { "PerformAutoLogin" : true } ); }

	this.PopupLoginPrep = function() {
		// Perform the setup steps needed to support the popup login on every page.
		// NOTE: The HTML for the LoginPop dialog is included in the top_nav file.
		
		$( '#LoginPop' ).dialog( { autoOpen: false, resizable: false, modal: true, title: 'Login' } );

		// Clicking in the background should close any and all dialogs.
		$( 'div.ui-widget-overlay' ).live( 'click', function() { $( '#LoginPop' ).dialog( 'close' ); } );
		$( 'div.ui-widget-overlay' ).live( 'click', function() { $( '#ResetPasswordPop' ).dialog( 'close' ); } );
		$( 'div.ui-widget-overlay' ).live( 'click', function() { $( '#TroubleLoggingInPop' ).dialog( 'close' ); } );
		$( 'div.ui-widget-overlay' ).live( 'click', function() { $( '#GenericDialog' ).dialog( 'close' ); } );

		$( '#PopupLoginButton a' ).click( function() { ThisLogin.PopupAttemptLogin(); } );
		
		$( '#NoLoginContinueButton a' ).click( function() { $( '#LoginPop' ).dialog( 'close' ); } );

		// Any anchor with the PopupLoginLink class becomes a link that opens the popup login dialog.
		// The top_nav bar has one of these links.
		$( 'a.PopupLoginLink' ).click( function( event ) {
							event.preventDefault();
				$( '#LoginPop' ).dialog( 'open' );
				$( '#PopupLoginEmail' ).focus();
					});
	
		$( '#PopupLoginEmail' ).keypress( function( e ) {
			if ( (e.which && e.which == 13 ) || ( e.keyCode && e.keyCode == 13 ) ) {
				$( '#PopupLoginPassword' ).focus();
			}
		});
	
		$( '#PopupLoginPassword' ).keypress( function( e ) {
			if ( (e.which && e.which == 13 ) || ( e.keyCode && e.keyCode == 13 ) ) {
				ThisLogin.PopupAttemptLogin();
			}
		});
	};


	this.PopupAttemptLogin = function() {
		// This is the login function called from the loginpopup dialog.
		var PopupLoginEmail = $( '#PopupLoginEmail' ).val();
		var PopupLoginPassword = $( '#PopupLoginPassword' ).val();
		if ( ThisLogin.ValidateMyAccountLoginDetails( PopupLoginEmail, PopupLoginPassword ) ) {
			ShowSpinner( 'PopupLoginButton' );
			Login.MyAccountLogin(
				{
					"Login"         : PopupLoginEmail,
					"Password"      : GEHash( PopupLoginPassword ),
					"SaveAutoLogin" : $( '#PopupAutoLogin' ).attr( 'checked' )
				},
				// Success callback
				function() {
					$( '#LoginPop' ).dialog( 'close' );
					document.location.reload(true);
				},
				// Failure callback
				function( FailureReason ) {
					if ( FailureReason != 'FailedLogin' ) {
						$( '#LoginPop' ).dialog( 'close' );
						if ( window.location.href.match( '^[^/]*//[^/]*/cart/' ) ) {
							MakeChoice( 
								// Original: 'Sorry, there\'s a technical problem preventing us from checking your login details. Would you like to try again, or carry on as a guest?',
								'Sorry – our server is on strike right now, temporarily restricting access to your account. The Shopping Cart still works but with some reduced functionality. Normal transmission should be resumed in a few minutes. In the meantime, would you like to carry on as a guest?',
								'Carry on as a guest', function() { ContinueAsGuest(); },
								'Try again', function() {},
								'Connection Problem'
							);
						} else {
							SimpleMessage( 
								'Sorry – our server is on strike right now, temporarily restricting access to your account. The Shopping Cart still works but with some reduced functionality. Normal transmission should be resumed in a few minutes. In the meantime, please feel free to carry on browsing.',
								'Connection Problem'
							);
						}
					}
				}
			);
		}
	}
	
	
	this.ValidateMyAccountLoginDetails = function( LoginEmail, LoginPassword ) {
		var Validated = false;
		var Message = '';
		if ( LoginEmail == '' )
			Message = 'Please enter your email address';
		else if ( LoginEmail.length > 100 )
			Message = 'Email address too long';
		else if ( LoginPassword == '' )
			Message = 'Please enter your password';
		else if ( LoginPassword.length > 100 )
			Message = 'Password too long';
		else
			Validated = true;
		if ( ! Validated ) SimpleMessage( Message, 'Login validation' );
		return Validated;
	}


	this.PerformOnMailingListLogin = function( CustomerIdentifier, CustomerSurname, CustomerFirstName, SuccessCallBack, FailureCallBack, SimulateMarvinConnectionProblem ) {
		$.ajax({
			url: '/myaccount/attempt_on_mailing_list_login.php',
			type: 'POST',
			dataType: 'json',
			data: {
				"CustomerIdentifier": CustomerIdentifier,
				"CustomerSurname": CustomerSurname,
				"CustomerFirstName": CustomerFirstName
			},
			success: function( response ) {
				if ( response.ConnectionProblem ) {
					FailureCallBack( 'ConnectionProblem' );
				} else if ( response.ErrorMessage ) {
					SimpleMessage( response.ErrorMessage, 'Error' );
					FailureCallBack();
				} else {
					LoggedIn = true;
					LoginType = 'MailingList';
					SuccessCallBack();
				}
			},
			error: function ( XMLHttpRequest, textStatus, errorThrown ) {
				if ( ( ! XMLHttpRequest ) || XMLHttpRequest.readyState == 0 || XMLHttpRequest.status == 0 ) FailureCallBack();   // Not actually an error: user probably navigated away.
				else SimpleMessage( 'Error (Mailing List Login) : ' + textStatus, 'Error', FailureCallBack );
			}
		});
	}
	
	this.GuestPseudoLogin = function( SuccessCallBack ) {
		$.ajax({
			url: '/myaccount/guest_pseudo_login.php',
			type: 'POST',
			dataType: 'json',
			data: { "ReturnResponse": true },
			success: function( response ) {
				if ( response.ErrorMessage ) SimpleMessage( response.ErrorMessage, 'Error' );
				else {
					LoggedIn = true;
					LoginType = 'Guest';
					SuccessCallBack();
				}
			},
			error: function ( XMLHttpRequest, textStatus, errorThrown ) {
				if ( ( ! XMLHttpRequest ) || XMLHttpRequest.readyState == 0 || XMLHttpRequest.status == 0 ) return;   // Not actually an error: user probably navigated away.
				else SimpleMessage( 'Error (MyAccount Login) : ' + textStatus, 'Error' );
			}
		});
	}
	
	this.ContinueAsKnownGuest = function( SuccessCallBack ) {
		$.ajax({
			url: '/myaccount/change_login_type.php?NewLoginType=Guest',
			type: 'POST',
			dataType: 'json',
			data: {},
			success: function( response ) {
				if ( response.ErrorMessage ) SimpleMessage( response.ErrorMessage, 'Error' );
				else {
					LoggedIn = true;
					LoginType = 'Guest';
					SuccessCallBack();
				}
			},
			error: function ( XMLHttpRequest, textStatus, errorThrown ) {
				if ( ( ! XMLHttpRequest ) || XMLHttpRequest.readyState == 0 || XMLHttpRequest.status == 0 ) return;   // Not actually an error: user probably navigated away.
				else SimpleMessage( 'Error (MyAccount Login) : ' + textStatus, 'Error' );
			}
		});
	}


	this.DisplayPopupPasswordReset = function() {
		// Add (if necessary) and then present the popup Password Reset dialog.
	
		if ( $( '#ResetPasswordPop' ).length == 0 ) {
			// Haven't used it already on this page, so add it to the DOM.
			$( 'body' ).append( 
				'<div id="ResetPasswordPop">' +
				'   <p>Already set up your My Account but can\'t recall the password?</p>' +
				'   <p>Enter the \'login email\' address used originally to create your My Account. We\'ll reset and email the new password to you.</p>' +
				'   <p>&nbsp;</p>' +
				'   <p><label for="LoginEmailForReset">login email</label><input type="email" id="LoginEmailForReset" value="" /></p>' +
				'   <p class="button"><a id="ResetSubmitButton" href="/:;"><img src="/images/submit.gif" alt="password-reset-submit" name="password-reset-submit" border="0"></a></p>' +
				'</div>'
			);

			$( '#ResetPasswordPop' ).dialog( { autoOpen: false, resizable: false, modal: true, width: 400, title: 'Reset Password' } );
			$( '#ResetPasswordPop a' ).click( function( event ) { event.preventDefault(); ThisLogin.PerformPasswordReset(); } );
			$( '#ResetPasswordPop #ResetSubmitButton img' ).hover(
				function() { this.src = this.src.replace( 'submit.', 'submit-roll.' ); },
				function() { this.src = this.src.replace( 'submit-roll.', 'submit.' ); }
			);
			$( '#ResetPasswordPop #LoginEmailForReset' ).keypress( function( e ) {
				if ( (e.which && e.which == 13 ) || ( e.keyCode && e.keyCode == 13 ) ) {
					ThisLogin.PerformPasswordReset();
				}
			});
		}

		$( '#LoginPop' ).dialog( 'close' );
		$( '#MyAccountLoginControls' ).dialog( 'close' );
		$( '#TroubleLoggingInPop' ).dialog( 'close' );
		$( '#ResetPasswordPop' ).dialog( 'open' );
		$( '#ResetPasswordPop #LoginEmail' ).focus();
	}


	this.ValidateLoginInput = function( EmailAddress ) {

		if ( EmailAddress === '' ) {
			SimpleMessage( 'Please enter the email address that you used to log in to your My Account (the one you used when you set it up).', 'Input problems' );
			return false;
		} 

		var EmailRegexp = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
		if ( ! EmailRegexp.test( EmailAddress ) ) {
			SimpleMessage( 'That doesn\'t look like an email address. Please check and try again.', 'Input problems' );
			return false;
		}
		
		return true;
	}


	this.PerformPasswordReset = function() {
		// Call an AJAX helper script to reset the user's password. If successful, that script will email the new password to the specified address.
		if ( ThisLogin.ValidateLoginInput( $( '#LoginEmailForReset' ).attr( 'value' ) ) ) {
			ShowSpinner( 'ResetSubmitButton' );
			$.ajax({
				type: 'POST',
				url: '/myaccount/reset_password.php',
				data: { "LoginEmail": $( '#LoginEmailForReset' ).attr( 'value' ) },
				dataType: 'json',
				timeout: 10000,   // 10 seconds
				success: function( response ) {
					RevertButton( 'ResetSubmitButton', this.PerformPasswordReset );
					if ( response.ErrorMessage ) {
						SimpleMessage( response.ErrorMessage, 'Error' );
					} else {
						SimpleMessage( 'Thanks, we have now reset your password, and emailed the new password to you at that address.', 'Password Reset' );
						$( '#ResetPasswordPop' ).dialog( 'close' );
						$( '#TroubleLoggingInPop' ).dialog( 'close' );
					}
				},
				error: function ( XMLHttpRequest, textStatus, errorThrown ) {
					RevertButton( 'ResetSubmitButton', this.PerformPasswordReset );
					if ( textStatus == 'timeout' ) {
						SimpleMessage( 'Oops, that seems to be taking a bit longer than it should. That probably means there is a technical glitch and your password hasn\'t been reset. Keep an eye on your mailbox, though, just in case we\'re being too impatient.', 'Error' );
					} else {
						SimpleMessage( 'Sorry, there\'s a technical problem preventing us from resetting your password right now.', 'Error' );
					}
				}
			});
		}
	}


	this.DisplayTroubleLoggingInDialog = function() {
		// Add (if necessary) and then present the popup Trouble Loggin In dialog.
	
		if ( $( '#TroubleLoggingInPop' ).length == 0 ) {
			// Haven't used it already on this page, so add it to the DOM.
			$( 'body' ).append( 
				'<div id="TroubleLoggingInPop">' +
				'   <h2><a href="#">Forgot your login email?</a></h2>' +
				'   <div class="answer"><p>Your login is the email address you used when originally creating your My Account.</p>' +
				'   <p>Note that even if you\'re an existing Ground Effect customer, you still need to first register with a login email and password before creating your on-line account.' +
				'      <a href="http://www.groundeffect.co.nz/stayintouch/login.php\">Click here</a> to register.' +
				'   <p>Alternatively you can continue to browse the site and use the shopping cart as a guest or using your customer number.</p></div>' +
		
				'   <h2><a href="#">Forgot your password?</a></h2>' +
				'   <div class="answer"><p>Already set up your My Account but can\'t recall the password? </p>' +
//				'   <p>If you can’t remember your password <a href="javascript:Login.DisplayPopupPasswordReset();">click here</a> to reset it (we\'ll let you know the new one by email to your login address).</p></div>' +
				'   <p>Enter the \'login email\' address used originally to create your My Account. We\'ll reset and email the new password to you.</p>' +
				'   <p>&nbsp;</p>' +
				'   <p><label for="LoginEmailForReset">login email</label><input type="email" id="LoginEmailForReset" value="" /></p>' +
				'   <p class="button"><a id="ResetSubmitButton" href="/:;"><img src="/images/submit.gif" alt="password-reset-submit" name="password-reset-submit" border="0"></a></p></div>' +

				'   <h2><a href="#">Didn’t receive an Account Confirmation email?</a></h2>' +
				'   <div class="answer"><p>After registering you should receive an \'Activate My Account\' email. Click on the validation link within the email to activate your on-line account.</p>' +
				'   <p>Some emails are blocked by your internet provider or filtered as junk mail by the email application on your computer.' +
				'   If you haven\'t received the \'Activate My Account\' email then check your junk mail settings and/or add us to your address book: ' +
				'   <a href="mailto:ernie@groundeffect.co.nz">ernie@groundeffect.co.nz</a> and <a href="mailto:orders@groundeffect.co.nz">orders@groundeffect.co.nz</a></p></div>' +
				'</div>'
			);

			$('#TroubleLoggingInPop h2').click(function() {
				$('.answer').hide();
				$(this).next('.answer').show();
			});

			$( '#TroubleLoggingInPop a#ResetSubmitButton' ).click( function( event ) { event.preventDefault(); ThisLogin.PerformPasswordReset(); } );
			$( '#TroubleLoggingInPop #ResetSubmitButton img' ).hover(
				function() { this.src = this.src.replace( 'submit.', 'submit-roll.' ); },
				function() { this.src = this.src.replace( 'submit-roll.', 'submit.' ); }
			);
			$( '#TroubleLoggingInPop #LoginEmailForReset' ).keypress( function( e ) {
				if ( (e.which && e.which == 13 ) || ( e.keyCode && e.keyCode == 13 ) ) {
					ThisLogin.PerformPasswordReset();
				}
			});


			$( '#TroubleLoggingInPop' ).dialog( { autoOpen: false, resizable: false, modal: true, width: 500, title: 'Trouble Logging In' } );
//			$( '#ResetPasswordPop a' ).click( function( event ) { event.preventDefault(); ThisLogin.PerformPasswordReset(); } );
//			$( '#ResetPasswordPop #ResetSubmitButton img' ).hover(
//				function() { this.src = this.src.replace( 'submit.', 'submit-roll.' ); },
//				function() { this.src = this.src.replace( 'submit-roll.', 'submit.' ); }
//			);

		}

		$( '#LoginPop' ).dialog( 'close' );
		$( '#MyAccountLoginControls' ).dialog( 'close' );
		$( '#TroubleLoggingInPop' ).dialog( 'open' );
	}

}

function GoToRegistration() {
	// Helper function that can be called from within a login error dialog.
	setTimeout( "window.location.href = 'http://www.groundeffect.co.nz/stayintouch/login.php'", 0 );
}
// Comment here to catch the garbage characters