jQuery(function($) {
    var admin_menu_in_frontend = $('.admin-menu-in-frontend');
    var admin_menu_wrap = admin_menu_in_frontend.find('#adminmenuwrap');
    var admin_menu = admin_menu_in_frontend.find('#adminmenu');


    // Show admin menu
    admin_menu_in_frontend.show();


    // Add "folded" class to html tag
    if (admin_menu_vars.folded) {
        $('html').addClass('folded');
    }


    // Add wp-admin url to menu links
    admin_menu.find('a').each(function() {
        var href = $(this).attr('href');
        if (href.indexOf('//') == -1) {
            var new_href = admin_menu_vars.admin_url + href;
            $(this).attr('href', new_href);
        }
    });


    // Open submenu on hover
    admin_menu.find('.wp-has-submenu').hover(function() {
        $(this).addClass('opensub');
        $(this).find('.wp-submenu').addClass('sub-open');
    }, function() {
        $(this).removeClass('opensub');
        $(this).find('.wp-submenu').removeClass('sub-open');
    });


    // Click to submenu-head and go to first url
    admin_menu.find('.wp-submenu-head').click(function() {
        window.location.href = $(this).parents('li').find('a').first().attr('href');
    });


    // Collapse admin menu
    if (!admin_menu_in_frontend.find('#collapse-menu .collapse-button-icon').length) {
        admin_menu_in_frontend.find('#collapse-menu').html('<button type="button" id="collapse-button"><span class="collapse-button-icon"></span><span class="collapse-button-label">Collapse menu</span></button>');
    }
    admin_menu_in_frontend.find('#collapse-button').click(function() {
        var collapse ;
        var html_tag = $('html');
        if (html_tag.hasClass('folded')) {
            html_tag.removeClass('folded');
            collapse = '';
        } else {
            html_tag.addClass('folded');
            collapse = '1';
        }

        var data = {
            action: 'amf_save_collapse_admin_menu',
            security: admin_menu_vars.collapse_nonce,
            collapse_admin_menu: collapse
        };
        $.post(admin_menu_vars.ajax_url, data, function(response) {
            //console.log(response);
        });

    });


    // Set admin menu position
    var scroll_top = $(window).scrollTop();
    var prev_scroll_top = scroll_top;
    var setAdminMenuPosition = function () {
        var menu_height = admin_menu.outerHeight(true);
        var margin_top = parseInt($('html').css('margin-top'));
        var window_height = $(window).height();
        var screen_height = window_height - margin_top;
        prev_scroll_top = scroll_top;
        scroll_top = $(window).scrollTop();
        var offset_top = admin_menu_in_frontend.offset().top;
        var offset_bottom = offset_top + menu_height;
        var rel_offset_top = offset_top - scroll_top;
        var rel_offset_bottom = offset_bottom - scroll_top;

        if (menu_height <= screen_height) {
            admin_menu_wrap.height(screen_height);
            admin_menu_in_frontend.removeClass('fixed-bottom').addClass('fixed-top');
            admin_menu_in_frontend.css({
                'top': margin_top + 'px',
                'bottom': 'initial'
            });
        } else {
            admin_menu_wrap.height('auto');

            if (!admin_menu_in_frontend.hasClass('fixed-top') && rel_offset_top > margin_top) {
                admin_menu_in_frontend.removeClass('fixed-bottom').addClass('fixed-top');
            } else if (!admin_menu_in_frontend.hasClass('fixed-bottom') && rel_offset_bottom < window_height) {
                admin_menu_in_frontend.removeClass('fixed-top').addClass('fixed-bottom');
            } else {
                if (scroll_top != prev_scroll_top) {
                    if (scroll_top > prev_scroll_top && admin_menu_in_frontend.hasClass('fixed-top')) {
                        admin_menu_in_frontend.removeClass('fixed-bottom').removeClass('fixed-top');
                        admin_menu_in_frontend.css({
                            'top': offset_top + 'px',
                            'bottom': 'initial'
                        });
                    }
                    if (scroll_top < prev_scroll_top && admin_menu_in_frontend.hasClass('fixed-bottom')) {
                        admin_menu_in_frontend.removeClass('fixed-bottom').removeClass('fixed-top');
                        admin_menu_in_frontend.css({
                            'top': offset_top + 'px',
                            'bottom': 'initial'
                        });
                    }
                }
            }
        }
    };
    $(window).load(setAdminMenuPosition);
    $(window).scroll(setAdminMenuPosition);
    $(window).resize(setAdminMenuPosition);

});