jQuery(document).ready(function ($) {
    var contentSections = $('.cd-section'),
        //navigationItems = $('#cd-vertical-nav ul li a');
        navigationItems = $('#cd-vertical-nav ul li a .cd-dot');

     //updateNavigation();
    //$(window).on('scroll', function () {
    //    updateNavigation();
    //});
    window.addEventListener("hashchange", function () {
        window.scrollTo(window.scrollX, window.scrollY - 100);
    });

    // Cancel a tag href click
    navigationItems.parent().click(function (event) {
        event.preventDefault();
    });

    //smooth scroll to the section
    navigationItems.on('click', function (event) {
        event.preventDefault();
        var hash = $(this).parent().attr("href");
        smoothScroll($(hash), hash);
    });
    //smooth scroll to second section
    $('.cd-scroll-down').on('click', function (event) {
        event.preventDefault();
        var hash = $(this).parent().attr("href");
        smoothScroll($(hash));
    });

    $('#cd-vertical-nav .cd-dot').hover(function () {
        //Hovering
        $(this).addClass("hovering");
        $(this).siblings(".cd-label").addClass("hovering");
    }, function () {
        //Not hovering
        $(this).removeClass("hovering");
        $(this).siblings(".cd-label").removeClass("hovering");
    });

    //open-close navigation on touch devices
    //$('.touch .cd-nav-trigger').on('click', function(){
    //	$('.touch #cd-vertical-nav').toggleClass('open');

    //});
    $('.cd-nav-trigger').on('click', function () {
        $('#cd-vertical-nav').toggleClass('open');

    });
    //close navigation on touch devices when selectin an elemnt from the list
    //$('.touch #cd-vertical-nav a').on('click', function(){
    //	$('.touch #cd-vertical-nav').removeClass('open');
    //});
    $('#cd-vertical-nav a').on('click', function () {
        $('#cd-vertical-nav').removeClass('open');
    });

    function updateNavigation() {
        var windscroll = $(window).scrollTop();

        var windowHeight = $(window).height();
        var navbarHeight = $("nav.navbar-fixed-top").outerHeight();
        var vpHeight = windowHeight - navbarHeight;

        var currentPos = windscroll - vpHeight;

        if (currentPos < 0)
            currentPos = 0;

        var $currentSection;
        $('#cd-vertical-nav a.is-selected').removeClass('is-selected');
        console.log("currentPos: " + currentPos);
        contentSections.each(function () {
            $this = document.getElementById($(this).attr("id"));
            console.log("element " + $(this).attr("id") + ": " + $this.offsetTop);
            if (currentPos >= $this.offsetTop) {
                $currentSection = $(this)
                var id = $currentSection.attr('id');
                $('#cd-vertical-nav a.is-selected').removeClass('is-selected');
                $("#cd-vertical-nav a[href=#" + id + "]").addClass('is-selected');
            }

            /*var activeSection = $('#cd-vertical-nav a[href="#' + $this.attr('id') + '"]').attr('data-number') - 1;
            if (($this.offset().top - $(window).height() / 2 < $(window).scrollTop()) &&
                ($this.offset().top + $this.height() - $(window).height() / 2 > $(window).scrollTop())) {
                navigationItems.eq(activeSection).addClass('is-selected');
            } else {
				navigationItems.eq(activeSection).removeClass('is-selected');
			}*/

        });
    };

    function smoothScroll(target, hash) {
        determineOffset(target, hash, function (offset) {

            $('body,html').animate(
                { 'scrollTop': target.offset().top - offset },
                600
            );
        });
    }
});

function determineOffset(target, hash, callback) {
    switch (hash) {
        // Home
        case "#getStarted":
            callback(25);
            break;
        case "#WhyCRM":
            callback(10);
            break;
        case "#GetMore":
            callback(15);
            break;
        case "#Solutions":
            callback(20);
            break;
        case "#Customers":
            callback(20);
            break;
        // About
        case "#WhoWeAre":
            callback(25);
            break;
        case "#Mission":
            callback(20);
            break;
        case "#Journey":
            callback(20);
            break;
        case "#Help":
            callback(10);
            break;
        case "#Team":
            callback(10)
            break;
        // Services
        case "#WhatWeDo":
            callback(10);
            break;
        case "#Packages":
            callback(10);
            break;
        // Products
        case "#Products":
            callback(-25);
            break;
        // Dyn 365
        case "#Rethink":
            callback(20);
            break;
        case "#Applications":
            callback(20);
            break;
        case "#Interaction":
            callback(-30);
            break;
        case "#Dyn365Licensing":
            callback(-20);
            break;
        case "#Business":
            callback(20);
            break;
        case "#Addons":
            callback(10);
            break;
        // Resco
        case "#Features":
            callback(20);
            break;
        case "#Devices":
            callback(10);
            break;
        case "#LicensingResco":
            callback(-30);
            break;
        // Office 365
        case "#Connect":
            callback(-10);
            break;
        case "#Business":
            callback(-10);
            break;
        case "#LicensingOffice":
            callback(-10);
            break;
        // Dyn Solutions
        case "#extendFunc":
            callback(-20);
            break;
        // Contact
        case "#GetInTouch":
            callback(-10);
            break;
        default:
            callback(90);
            break;
    }
};