$(document).ready(function() {
	// Go to the permissions tab if the checkbox is checked.
	$('body').on("click", "#id_share", function() {
		if ($('#id_share').is(':checked') && !( $('#id_share').attr("disabled"))) { 
			$('#acl-wrapper').show();
			$("a#event-perms-lnk").parent("li").show();
			toggleEventNav("a#event-perms-lnk");
			eventAclActive();
		}
		else {
			$('#acl-wrapper').hide();
			$("a#event-perms-lnk").parent("li").hide();
		}
	}).trigger('change');

	// Disable the finish time input if the user disable it.
	$('body').on("change", "#id_nofinish", function() {
		enableDisableFinishDate()
	}).trigger('change');

	// JS for the permission section.
	$('#contact_allow, #contact_deny, #group_allow, #group_deny').change(function() {
		var selstr;
		$('#contact_allow option:selected, #contact_deny option:selected, #group_allow option:selected, #group_deny option:selected').each( function() {
			selstr = $(this).text();
			$('#jot-public').hide();
		});
		if (selstr == null) {
			$('#jot-public').show();
		}

	}).trigger('change');

	// Change the event nav menu.tabs on click.
	$("body").on("click", "#event-nav > li > a", function(e){
		e.preventDefault();
		toggleEventNav(this);
	});

	// This is experimental. We maybe can make use of it to inject
	// some js code while the event modal opens.
	//$('body').on('show.bs.modal', function () {
	//	enableDisableFinishDate();
	//});

	// Clear some elements (e.g. the event-preview container) when
	// selecting a event nav link so it don't appear more than once.
	$('body').on("click", "#event-nav a", function(e) {
		$("#event-preview").empty();
		e.preventDefault();
	});

	// Construct a new ACL. We need this everytime the 'event-edit-form' is loaded
	// without page reloading (e.g. closing an old modal and open a new modal).
	// Otherwise we wouldn't get the ACL data.
	/// @todo: Try to implement some kind of ACL reloading in acl.js.
	if (typeof acl !== "undefined") {
		var eventPerms = document.getElementById('event-edit-form');

		acl = new ACL(
			baseurl + "/acl",
			[
				eventPerms.dataset.allow_cid,
				eventPerms.dataset.allow_gid,
				eventPerms.dataset.deny_cid,
				eventPerms.dataset.deny_gid
			]
		);
	}

});

// Load the html of the actual event and incect the output to the
// event-edit section.
function doEventPreview() {
	$('#event-edit-preview').val(1);
	$.post('events',$('#event-edit-form').serialize(), function(data) {
		$("#event-preview").append(data);
	});
	$('#event-edit-preview').val(0);
}


// The following functions show/hide the specific event-edit content 
// in dependence of the selected nav.
function eventAclActive() {
	$("#event-edit-wrapper, #event-preview, #event-desc-wrapper").hide();
	$("#event-acl-wrapper").show();
}


function eventPreviewActive() {
	$("#event-acl-wrapper, #event-edit-wrapper, #event-desc-wrapper").hide();
	$("#event-preview").show();
	doEventPreview();
}

function eventEditActive() {
	$("#event-acl-wrapper, #event-preview, #event-desc-wrapper").hide();
	$("#event-edit-wrapper").show();

	// Make sure jot text does have really the active class (we do this because there are some
	// other events which trigger jot text.
	toggleEventNav($("#event-edit-lnk"));
}

function eventDescActive() {
	$("#event-edit-wrapper, #event-preview, #event-acl-wrapper").hide();
	$("#event-desc-wrapper").show();
}

// Give the active "event-nav" list element the class "active".
function toggleEventNav (elm) {
	// Select all li of #event-nav and remove the active class.
	$(elm).closest("#event-nav").children("li").removeClass("active");
	// Add the active class to the parent of the link which was selected.
	$(elm).parent("li").addClass("active");
}



// Disable the input for the finish date if it is not available.
function enableDisableFinishDate() {
	if( $('#id_nofinish').is(':checked'))
		$('#id_finish_text').prop("disabled", true);
	else
		$('#id_finish_text').prop("disabled", false);
}
