/**
* js  长文章分页(html模块,文章模块)
*/
$(function () {
    //var console = console || { log: function () { return; } };

    //如果是编辑页面
    if (location.href.indexOf("/ctl/Edit/") > 0) {
        //console.log("编辑页面不执行分页.");
        return;
    }
    var curentPageIndex = 1;
    //html 模块
    var $content = $("#Content,.DnnModule-DNN_HTML div[id*=HtmlModule_lblContent]");
    $content.each(function () {
        var content = $(this).html();
        if (!content) {
            //console.warn("正文无内容,跳过分页.");
            return true;
        }
        var pagingContent = content.split(/<div style="[^"]*page-break-after[^"]*"><span[^>]*>.*<\/span><\/div>/ig);

        if (pagingContent && pagingContent.length == 1) {
            //console.warn("正文无分页标记,跳过分页.");
            return true;
        }
        var pagingFormatContent = [];

        for (var i = 0; i < pagingContent.length; i++) {

            pagingFormatContent.push("<div  class='pager-content page-" + (i + 1) + "' style='display:none'>");

            pagingFormatContent.push(pagingContent[i]);

            pagingFormatContent.push("</div>");

        }
        $(this).html(pagingFormatContent.join("\n"));

        var $contentPager = $("<div class='gt-pager'>");

        $(this).after($contentPager);

        pager($contentPager, $(this), pagingContent.length);
    });

    function pager($contentPager, $content, pages) {
        $contentPager.pagination({
            pages: pages,
            cssStyle: 'light-theme',
            onPageClick: function (pageIndex) {
                curentPageIndex = pageIndex;
                pager($contentPager, $content, pages);
            },
            currentPage: curentPageIndex,
            prevText: "上一页",
            nextText: "下一页"
        });
        var currentPage = $(".page-" + curentPageIndex, $content);
        currentPage.siblings().hide();
        currentPage.show();
    }
});




(function ($) {

    var methods = {
        init: function (options) {
            var o = $.extend({
                items: 1,
                itemsOnPage: 1,
                pages: 0,
                displayedPages: 5,
                edges: 2,
                currentPage: 1,
                hrefTextPrefix: '#page-',
                hrefTextSuffix: '',
                prevText: 'Prev',
                nextText: 'Next',
                ellipseText: '&hellip;',
                cssStyle: 'light-theme',
                labelMap: [],
                selectOnClick: true,
                onPageClick: function (pageNumber, event) {
                    // Callback triggered when a page is clicked
                    // Page number is given as an optional parameter
                },
                onInit: function () {
                    // Callback triggered immediately after initialization
                }
            }, options || {});

            var self = this;

            o.pages = o.pages ? o.pages : Math.ceil(o.items / o.itemsOnPage) ? Math.ceil(o.items / o.itemsOnPage) : 1;
            o.currentPage = o.currentPage - 1;
            o.halfDisplayed = o.displayedPages / 2;

            this.each(function () {
                self.addClass(o.cssStyle + ' simple-pagination').data('pagination', o);
                methods._draw.call(self);
            });

            o.onInit();

            return this;
        },

        selectPage: function (page) {
            methods._selectPage.call(this, page - 1);
            return this;
        },

        prevPage: function () {
            var o = this.data('pagination');
            if (o.currentPage > 0) {
                methods._selectPage.call(this, o.currentPage - 1);
            }
            return this;
        },

        nextPage: function () {
            var o = this.data('pagination');
            if (o.currentPage < o.pages - 1) {
                methods._selectPage.call(this, o.currentPage + 1);
            }
            return this;
        },

        getPagesCount: function () {
            return this.data('pagination').pages;
        },

        getCurrentPage: function () {
            return this.data('pagination').currentPage + 1;
        },

        destroy: function () {
            this.empty();
            return this;
        },

        drawPage: function (page) {
            var o = this.data('pagination');
            o.currentPage = page - 1;
            this.data('pagination', o);
            methods._draw.call(this);
            return this;
        },

        redraw: function () {
            methods._draw.call(this);
            return this;
        },

        disable: function () {
            var o = this.data('pagination');
            o.disabled = true;
            this.data('pagination', o);
            methods._draw.call(this);
            return this;
        },

        enable: function () {
            var o = this.data('pagination');
            o.disabled = false;
            this.data('pagination', o);
            methods._draw.call(this);
            return this;
        },

        updateItems: function (newItems) {
            var o = this.data('pagination');
            o.items = newItems;
            o.pages = methods._getPages(o);
            this.data('pagination', o);
            methods._draw.call(this);
        },

        updateItemsOnPage: function (itemsOnPage) {
            var o = this.data('pagination');
            o.itemsOnPage = itemsOnPage;
            o.pages = methods._getPages(o);
            this.data('pagination', o);
            methods._selectPage.call(this, 0);
            return this;
        },

        _draw: function () {
            var o = this.data('pagination'),
                    interval = methods._getInterval(o),
                    i,
                    tagName;

            methods.destroy.call(this);

            tagName = (typeof this.prop === 'function') ? this.prop('tagName') : this.attr('tagName');

            var $panel = tagName === 'UL' ? this : $('<ul></ul>').appendTo(this);

            // Generate Prev link
            if (o.prevText) {
                methods._appendItem.call(this, o.currentPage - 1, { text: o.prevText, classes: 'prev' });
            }

            // Generate start edges
            if (interval.start > 0 && o.edges > 0) {
                var end = Math.min(o.edges, interval.start);
                for (i = 0; i < end; i++) {
                    methods._appendItem.call(this, i);
                }
                if (o.edges < interval.start && (interval.start - o.edges != 1)) {
                    $panel.append('<li class="disabled"><span class="ellipse">' + o.ellipseText + '</span></li>');
                } else if (interval.start - o.edges == 1) {
                    methods._appendItem.call(this, o.edges);
                }
            }

            // Generate interval links
            for (i = interval.start; i < interval.end; i++) {
                methods._appendItem.call(this, i);
            }

            // Generate end edges
            if (interval.end < o.pages && o.edges > 0) {
                if (o.pages - o.edges > interval.end && (o.pages - o.edges - interval.end != 1)) {
                    $panel.append('<li class="disabled"><span class="ellipse">' + o.ellipseText + '</span></li>');
                } else if (o.pages - o.edges - interval.end == 1) {
                    methods._appendItem.call(this, interval.end++);
                }
                var begin = Math.max(o.pages - o.edges, interval.end);
                for (i = begin; i < o.pages; i++) {
                    methods._appendItem.call(this, i);
                }
            }

            // Generate Next link
            if (o.nextText) {
                methods._appendItem.call(this, o.currentPage + 1, { text: o.nextText, classes: 'next' });
            }
        },

        _getPages: function (o) {
            var pages = Math.ceil(o.items / o.itemsOnPage);
            return pages || 1;
        },

        _getInterval: function (o) {
            return {
                start: Math.ceil(o.currentPage > o.halfDisplayed ? Math.max(Math.min(o.currentPage - o.halfDisplayed, (o.pages - o.displayedPages)), 0) : 0),
                end: Math.ceil(o.currentPage > o.halfDisplayed ? Math.min(o.currentPage + o.halfDisplayed, o.pages) : Math.min(o.displayedPages, o.pages))
            };
        },

        _appendItem: function (pageIndex, opts) {
            var self = this, options, $link, o = self.data('pagination'), $linkWrapper = $('<li></li>'), $ul = self.find('ul');

            pageIndex = pageIndex < 0 ? 0 : (pageIndex < o.pages ? pageIndex : o.pages - 1);

            options = {
                text: pageIndex + 1,
                classes: ''
            };

            if (o.labelMap.length && o.labelMap[pageIndex]) {
                options.text = o.labelMap[pageIndex];
            }

            options = $.extend(options, opts || {});

            if (pageIndex == o.currentPage || o.disabled) {
                if (o.disabled) {
                    $linkWrapper.addClass('disabled');
                } else {
                    $linkWrapper.addClass('active');
                }
                $link = $('<span class="current">' + (options.text) + '</span>');
            } else {
                $link = $('<a class="page-link">' + (options.text) + '</a>');
                $link.click(function (event) {
                    return methods._selectPage.call(self, pageIndex, event);
                });
            }

            if (options.classes) {
                $link.addClass(options.classes);
            }

            $linkWrapper.append($link);

            if ($ul.length) {
                $ul.append($linkWrapper);
            } else {
                self.append($linkWrapper);
            }
        },

        _selectPage: function (pageIndex, event) {
            var o = this.data('pagination');
            o.currentPage = pageIndex;
            if (o.selectOnClick) {
                methods._draw.call(this);
            }
            return o.onPageClick(pageIndex + 1, event);
        }

    };

    $.fn.pagination = function (method) {

        // Method calling logic
        if (methods[method] && method.charAt(0) != '_') {
            return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
        } else if (typeof method === 'object' || !method) {
            return methods.init.apply(this, arguments);
        } else {
            $.error('Method ' + method + ' does not exist on jQuery.pagination');
        }

    };

})(jQuery);