(function($) {

    // Init functions
    function init() {

        function checkAdBannerAlt() {
            $( ".widget-adBanner .slide-img > img" ).each( function(){
                if( $(this).attr( "alt" ) === "" ) {
                    $(this).attr( "alt", "AD Banner Image" );                    
                }
            });
        }

        // Add link and cursor class name on element that has data-link attribute
        function addLinkOnADBanner( els ) {
            $.each( els, function() {
                if ( $( this ).data( "link" ) !== "" && !$( this ).hasClass( "youtube" ) ) {
                    $( this ).on( "click", function() {
                        var target = $( this ).data( "target" ),
                            link = $( this ).data( "link" );
                        if ( target === "_blank" ) {
                            window.open( link, target );
                        } else {
                            window.location.href = link;
                        }
                    }).addClass( "cursor" );
                }
            });
        }

        function heightCompare () {
            var priHeight = $('.primary').height();
            var secHeight = $('.secondary').height();
            if( priHeight <= secHeight ) {
                $('.primary')
                    .children('.inner')
                    .css('height', secHeight + 30);
            } 
        }

        function searchDetect () {
            if( $('body').attr('data-module') == 'news' || $('body').attr('data-module') == 'announcement' ) {
                if( window.location.search.length < 1 ) {
                    $('.search-result').addClass('hide');
                }
            }
        }

        function moveElement() {
            var path = window.location.pathname.split('/');
            if( path.indexOf('newss') || path.indexOf('announcement') ) {
                $('.i-sidebar')
                    .insertBefore('.secondary .page_content');
            }
        }

        // Doing this is to prevent directly change in the HTML
        function removeSignUpItem() {
            $(".login-body").find("a[href='/users/new']")
                .addClass('hide')
                .prev("div")
                .addClass('hide');
            $(".orbit-bar-search-sign-language")
                .find(".icons-tools")
                .closest('li')
                .addClass('hide');
        }

        function bullsEye() {
            $('.bullseye').bullseye({
                effect: false
            });
        }

        // Adding class to submenu that has dropdown items
        function submenuFix() {
            var item$ = $('.submenu__item.level-1');
            var itemLen = item$.length;
            var list$ = item$.find('.submenu__list.level-2');

            for (var i = 0; i < itemLen; i++) {
                if (list$.eq(i).find('li').length) {
                    list$
                        .eq(i)
                        .addClass('dropdown');
                }
            }
        }

        function navActive() {
            var path = window.location.pathname.split('/');
            var pathSlice = path.slice(1, path.length);
            var url = pathSlice.join('/');
            var nav$ = $('.page_menu.level_1');
            var navLen = nav$.length;

            $('.page_menu.level_1 > li a[href*="' + "/" + url + '"]')
                .addClass('active');
        }

        // Specifically for IE8
        function addClassOnLastMenuItem() {
            // IE8 and blow don't support multiple backgrouds, 
            // hance using this class to detect if the current user agent is IE8
            if( $( "html" ).hasClass( "no-multiplebgs" ) ) {
                $( ".page_menu.level_1 > li:last-child" ).addClass( "last" );
            }
        }

        // Main navigation dropdown
        function dropdown() {
            var navItemLevel1$ = $('.main-nav-item.level-1');
            var dropdownMenu$ = $('.dropdown-menu.level-2');

            // Adding class if nav item has dropdown
            $(navItemLevel1$)
                .has('.dropdown-menu')
                .children('a')
                .addClass('has-dropdown-menu');

            // Hide all dropdowns when click on any HTML elements
            $(document).on('click', function() {
                $('.dropdown-menu.level-2')
                    .addClass('hide')
                    .removeClass('show');
            })

            // Hide all dropdown after page load
            dropdownMenu$
                .addClass('hide')
                .removeClass('show');


            $('.has-dropdown-menu').on('click', function() {
                if ($(this).hasClass('has-dropdown-menu')) {
                    if ($(this).next('.dropdown-menu').hasClass('show')) {
                        dropdownMenu$.addClass('hide');
                        $(this)
                            .next('.dropdown-menu')
                            .removeClass('show')
                            .addClass('hide')

                    } else if ($(this).next('.dropdown-menu').hasClass('hide')) {
                        dropdownMenu$.addClass('hide');
                        dropdownMenu$.removeClass('show');
                        dropdownMenu$.addClass('hide');
                        $(this)
                            .next('.dropdown-menu')
                            .removeClass('hide')
                            .addClass('show')
                    }
                }

                return false;
            })
        }

        // Targeting Home page
        if ($('body').attr('class') === 'page-main') {
            bullsEye();
            dropdown();

            // Internal page
        } else {
            submenuFix();
            dropdown();
            bullsEye();
            moveElement();
            searchDetect();
            heightCompare();
        }
        removeSignUpItem();
        addClassOnLastMenuItem();
        addLinkOnADBanner( $(".cycle-slideshow > .slide-img") );
        checkAdBannerAlt();
    }

    $(document).ready(function($) {
        init();
        getXmlFeedForCalendar();
    });

}(jQuery));
var getXmlFeedForCalendar = function(){
    var template = "<li><div class='event_date'><div class='mon'></div><div class='day'>/06</div></div><a class='event_name' href='' target='_blank'></a><div class='event_info'></div></li>",
        month = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'];
    $.ajax({
        "url" : "/nccu_calendar.xml",
        "dataType" : "xml",
        "type" : "get"
    }).done(function(data){
        xmldoc = $(data);
        xmldoc.find("entry").each(function(i,entry){
            var el = $(entry),
                li = $(template),
                summary_text = el.find("summary").text(),
                indexA = summary_text.indexOf("-"),
                indexB = summary_text.indexOf(" "),
                indexC = summary_text.indexOf("/"),
                startDate_text = null,
                startMon_text = null,
                endDate_text = null,
                time_text = null;
                //清除前後空白字元
                summary_text = jQuery.trim(summary_text);
                //篩選標題
                if (summary_text.length == 31) {
                    startDate_text = summary_text.slice(0, indexA);
                    startMon_text = startDate_text.slice((indexC+1), (indexC+3));
                    startDay_text = startDate_text.slice(7);
                    endDate_text = summary_text.slice((indexA+1), indexB);
                    time_text = summary_text.slice((indexB+1));
                } else {
                    startDate_text = summary_text.slice(0, indexB);
                    startMon_text = startDate_text.slice((indexC+1), (indexC+3));
                    startDay_text = startDate_text.slice(7);
                    endDate_text = '';
                    time_text = summary_text.slice((indexB+1));
                }
                if(startMon_text.slice(0, 1) == '0'){
                    console.log("slice")
                    startMon_text = month[startMon_text.slice(1)-1];
                } else {
                    console.log("without slice")
                    startMon_text = month[startMon_text-1];
                }

            li.find("a").text(el.find("title").text()).attr("href", el.find("link").attr("href"));
            li.find(".mon").text(startMon_text);
            li.find(".day").text(startDay_text);
            li.find(".event_info").text("時間：" + time_text);
            $("#nccu_event_calendar").append(li);
        })
        bindHandler();
    })
    var $next = $('.events .links_next'),
        $prev = $('.events .links_prev');
    var bindHandler = function(){
        var page_number = 1,
            total_pages = Math.ceil($("#nccu_event_calendar li").length / 3);
        showLis(page_number, total_pages);
        $next.on("click", function(){
            if(page_number < total_pages){
                page_number++;
                showLis(page_number,total_pages);
            }
            return false;
        });
        $prev.on("click", function(){
            if(page_number > 1){
                page_number--;
                showLis(page_number,total_pages);                
            }
            return false;
        });
    }

    var showLis = function(page_number,total_pages){
        var $ul = $("#nccu_event_calendar"),
            start = (page_number - 1) * 3,
            end = (page_number * 3) - 1;
        $ul.find("li").hide();
        for(var i = start; i <= end; i++){
            $ul.find("li").eq(i).show();
        }
        if(page_number == 1 && total_pages > 1){
            $prev.addClass("disabled");
            $next.removeClass("disabled");
        }else if(page_number > 1 && page_number < total_pages){
            $prev.removeClass("disabled");
            $next.removeClass("disabled");
        }else if(page_number == total_pages){
            $next.addClass("disabled");
        }
    }

}
var packagesJS = function() {

    $('.open-mune').on('click', function(event) {
        $(this).closest('.main_menu').toggleClass('in');
    });


    $('.level_1').on('click', '.dot', function(event) {
        var $this = $(this);
        if ($this.closest('.main_menu').hasClass('collapse')) {
            // $this.closest('li').addClass('in').siblings('li').removeClass('in');
            $this.siblings('.page_menu').slideToggle(300, function() {
                $this.closest('li').toggleClass('in').siblings('li').removeClass('in');
            }).end().parent('li').siblings('li').find('.page_menu').slideUp(300);
        }
    });
    newsBlock();
    $('.news').on('click', ".topic_prev, .topic_next", slideList);
};
var newsBlock = function() {
    var $topicList = $('#topic_list');
    var $listMask = $('.list_mask');
    var $li = $topicList.children('li');
    var $prev = $('.topic_prev');
    var $next = $('.topic_next');
    var _wn = $listMask.width() * -3;
    var $maxWidth = $listMask.width() * -3;

    $li.css('width', $listMask.width() / 3);
    $topicList.css('width', $listMask.width() * 4);

    if (window.innerWidth < 767 && window.innerWidth > 480) {
        $li.css('width', $listMask.width() / 2);
        $topicList.css('width', $listMask.width() * 6);
        $maxWidth = $listMask.width() * -6;

        _wn = $listMask.width() * -5;

    } else if (window.innerWidth < 479) {
        $li.css('width', $listMask.width());
        $topicList.css('width', $listMask.width() * 12);
        $maxWidth = $listMask.width() * -12;
        _wn = $listMask.width() * -11;
    }

    checkPosition = function(left) {
        if (left == 0) {
            $prev.addClass('last');

        } else if (left == _wn) {
            $next.addClass('last');

        } else if (left > 0) {
            $topicList.animate({
                'left': 0
            });
            $prev.addClass('last');

        } else if (left < $maxWidth) {
            $topicList.animate({
                'left': 0
            });
            $prev.addClass('last');
        } else {
            $prev.removeClass('last');
            $next.removeClass('last');
        }
    }

    $prev.addClass('last');
    slideList = function(e) {
        var cn = e.target.className;
        position = function() {
            if (cn == 'topic_next') {
                return '-=' + $listMask.width();
            } else if (cn == 'topic_prev') {
                return '+=' + $listMask.width();
            }
        }

        $topicList.stop().animate({
            'left': position()
        }, 500, function() {
            checkPosition($topicList.position().left)
        });

    }
}

$(function() {

    if (getCookie("ipv6") == 'true') {
        $("#ipv6").text("Now in IPv6");
    } else {
        $("#ipv6").text("Now in IPv4");
    }

    function getCookie(c_name) {
        var c_value = document.cookie;
        var c_start = c_value.indexOf(" " + c_name + "=");
        if (c_start == -1) {
            c_start = c_value.indexOf(c_name + "=");
        }
        if (c_start == -1) {
            c_value = null;
        } else {
            c_start = c_value.indexOf("=", c_start) + 1;
            var c_end = c_value.indexOf(";", c_start);
            if (c_end == -1) {
                c_end = c_value.length;
            }
            c_value = unescape(c_value.substring(c_start, c_end));
        }
        return c_value;
    }


    var _timer = 0;

    var menuItem$ = $('.page_menu.level_1').children('li');
    var menuLen = menuItem$.length;

    for (var i = 0; i < menuLen; i++) {
        var _this = menuItem$[i];
        if ($(_this).find('.page_menu.level_2').length) {
            $(_this).children('a').after('<span class="dot"></span>')
        }
    }

    packagesJS();

    function windowResize() {
        if (window.innerWidth > 767) {
            $('.main_menu').addClass('expansion').removeClass('collapse');
            $('.page_menu').removeAttr('style');
        } else {
            $('.main_menu').addClass('collapse').removeClass('expansion');
        }
        $('#topic_list').css('left', 0);
        $('.topic_next').removeClass('last')
        newsBlock();
    }
    windowResize();
    $(window).resize(function(event) {
        clearTimeout(_timer);
        _timer = setTimeout(windowResize, 30);
    });
    $(document).ajaxStop(function() {
        if (location.pathname.split('/')[location.pathname.split('/').length - 1] == "NewsSearch") {
            $('article').find('.dymanic_load').addClass("search");
        }
    });
});