/**
* pagination分页插件
* @version 1.3.1
* @author mss
* @url http://maxiaoxiang.com/jquery-plugins/plugins/pagination.html
*
* @调用方法
* $(selector).pagination();
*/
; (function (factory) {
    if (typeof define === "function" && (define.amd || define.cmd) && !jquery) {
        // amd或cmd
        define(["jquery"], factory);
    } else if (typeof module === 'object' && module.exports) {
        // node/commonjs
        module.exports = function (root, jquery) {
            if (jquery === undefined) {
                if (typeof window !== 'undefined') {
                    jquery = require('jquery');
                } else {
                    jquery = require('jquery')(root);
                }
            }
            factory(jquery);
            return jquery;
        };
    } else {
        //browser globals
        factory(jquery);
    }
}(function ($) {

    //配置参数
    var defaults = {
        totaldata: 0, 		//数据总条数
        showdata: 0, 		//每页显示的条数
        pagecount: 9, 		//总页数,默认为9
        current: 1, 			//当前第几页
        prevcls: 'pre', 	//上一页class
        nextcls: '', 	//下一页class
        prevcontent: '上一页', 	//上一页内容
        nextcontent: '下一页', 	//下一页内容
        normalcls: 'page',    //普通页class
        activecls: 'page on', //当前页选中状态
        coping: true, 		//首页和尾页
        ishide: true, 		//当前页数为0页或者1页时不显示分页
        homepage: '', 		//首页节点内容
        endpage: '', 		//尾页节点内容
        keepshowpn: false, 	//是否一直显示上一页下一页
        count: 3, 			//当前页前后分页个数
        jump: false, 		//跳转到指定页数
        jumpiptcls: 'jump-ipt', //文本框内容
        jumpbtncls: 'jump-btn', //跳转按钮
        jumpbtn: '跳转', 	//跳转按钮文本
        callback: function () { } //回调
    };

    var pagination = function (element, options) {
        //全局变量
        var opts = options, //配置
            current, //当前页
            $document = $(document),
            $obj = $(element); //容器

        /**
        * 设置总页数
        * @param int page 页码
        * @return opts.pagecount 总页数配置
        */
        this.setpagecount = function (page) {
            return opts.pagecount = page;
        };

        /**
        * 获取总页数
        * 如果配置了总条数和每页显示条数，将会自动计算总页数并略过总页数配置，反之
        * @return int p 总页数
        */
        this.getpagecount = function () {
            return opts.totaldata || opts.showdata ? math.ceil(parseint(opts.totaldata) / opts.showdata) : opts.pagecount;
        };
        /**
        * 获取总条数
    	
	
        /**
        * 获取当前页
        * @return int current 当前第几页
        */
        this.getcurrent = function () {
            return current;
        };

        /**
        * 填充数据
        * @param int index 页码
        */
        this.filling = function (index) {
            var html = '';
            current = index || opts.current; //当前页码
            var pagecount = this.getpagecount(); //获取的总页数
            if (opts.coping) {
                if (current > 1) {
                    html += '<a href="javascript:;" class="ctrl start hidden-lg-down" data-page="1">'+opts.homepage+'</a>';
                }
                else {
                    html += '<a href="javascript:;" class="ctrl start hidden-lg-down disabled" >' + opts.homepage +'</a>';
                }
            }

            //html += "<div class=\"inner-pages\">";
            if (opts.keepshowpn && current > 1) {//上一页
                //html += '<a href="javascript:;" class="' + opts.prevcls + '"></a>';
                html += '<a data-page="' + parseint(current - 1) + '" href="javascript:;" class="ctrl prev">' + opts.prevcontent+'</a>';
            } else {
                if (opts.keepshowpn == false) {
                    $obj.find('.' + opts.prevcls) && $obj.find('.' + opts.prevcls).remove();
                }
                else {
                    html += '<a href="javascript:;" class="ctrl prev disabled">' + opts.prevcontent +'</a>';
                }
            }
            //if (current >= opts.count + 2 && current != 1 && pagecount != opts.count) {
            //    var home = opts.coping && opts.homepage ? opts.homepage : '1';
            //    html += opts.coping ? '<a>...</a>' : '';
            //}
            html += '<span class="num web hidden-lg-down">';
            var end = current + opts.count;
            var start = '';
            //修复到最后一页时比第一页少显示两页
            start = current === pagecount ? current - opts.count - 2 : current - opts.count;
            ((start > 1 && current < opts.count) || current == 1) && end++;
            (current > pagecount - opts.count && current >= pagecount) && start++;
            for (; start <= end; start++) {
                if (start <= pagecount && start >= 1) {
                    if (start != current) {
                        html += '<a class="pagenum" href="javascript:;" data-page="' + start + '" >' + start + '</a>';
                    } else {
                        html += '<a class="pagenum ' + opts.activecls + '">' + start + '</a>';
                    }
                }
            }
            html += '</span>';
            html += '<div class="num app hidden-lg-up">';

            html += '<a class="current">' + current + '</a><span>/</span><a class="total">' + pagecount + '</a>';
            html += '</div>';
            if (opts.keepshowpn && current < pagecount) {//下一页
                html += '<a data-page="' + parseint(current + 1) + '"  href="javascript:;" class="ctrl next">' + opts. nextcontent+'</a>';

            } else {
                if (opts.keepshowpn == false) {
                    $obj.find('.' + opts.nextcls) && $obj.find('.' + opts.nextcls).remove();
                }
                else {
                    html += '<a href="javascript:;" class="ctrl next disabled">' + opts.nextcontent +'</a>';

                }
            }
            if (opts.coping) {
                if (parseint(current + 1) >= pagecount) {
                    html += '<a href="javascript:;" class="ctrl end hidden-lg-down disabled" >' + opts.endpage +'</a>';
                }
                else {
                    html += '<a href="javascript:;" class="ctrl end hidden-lg-down " data-page="' + pagecount + '" >' + opts.endpage +'</a>';
                }
            }
            //html += "</div>";
            //  html += '<div class="all-count">共<span>' + pagecount + '</span>条<div>';
            if (opts.jump) {
                html += '<div class="go-right1">';
                html += '前往第<input class="' + opts.jumpiptcls + '" type="number" id="gopage" value="' + parseint(current) + '" />页';
                html += '<a href="javascript:;" class="' + opts.jumpbtncls + '">';
                html += '跳转<img src="/img/images/yellowright.png">';
                html += '</a>';
                html += '</div>';
            }

            $obj.empty().html(html);
        };

        //绑定事件
        this.eventbind = function () {
            var that = this;
            var pagecount = that.getpagecount(); //总页数
            var index = 1;
            $obj.off().on('click', 'a', function () {
                if ($(this).hasclass(opts.nextcls)) {
                    if ($obj.find('.' + opts.activecls).text() >= pagecount) {
                        $(this).addclass('disabled');
                        return false;
                    } else {
                        index = parseint($obj.find('.' + opts.activecls).text()) + 1;
                    }
                } else if ($(this).hasclass(opts.prevcls)) {
                    if ($obj.find('.' + opts.activecls).text() <= 1) {
                        $(this).addclass('disabled');
                        return false;
                    } else {
                        index = parseint($obj.find('.' + opts.activecls).text()) - 1;
                    }
                } else if ($(this).hasclass(opts.jumpbtncls)) {
                    if ($obj.find('.' + opts.jumpiptcls).val() !== '') {
                        index = parseint($obj.find('.' + opts.jumpiptcls).val());
                    } else {
                        return;
                    }
                } else {
                    index = parseint($(this).data('page'));
                }
                that.filling(index);
                typeof opts.callback === 'function' && opts.callback(that);
            });
            //输入跳转的页码
            $obj.on('input propertychange', '.' + opts.jumpiptcls, function () {
                var $this = $(this);
                var val = $this.val();
                var reg = /[^\d]/g;
                if (reg.test(val)) {
                    $this.val(val.replace(reg, ''));
                }
                (parseint(val) > pagecount) && $this.val(pagecount);
                if (parseint(val) === 0) {//最小值为1
                    $this.val(1);
                }

            });

            //回车跳转指定页码
            $document.keydown(function (e) {
                if (e.keycode == 13 && $obj.find('.' + opts.jumpiptcls).val()) {
                    var index = parseint($obj.find('.' + opts.jumpiptcls).val());
                    that.filling(index);
                    typeof opts.callback === 'function' && opts.callback(that);
                }
            });
        };

        //初始化
        this.init = function () {
            this.filling(opts.current);
            this.eventbind();
            if (opts.ishide && this.getpagecount() == '1' || this.getpagecount() == '0') $obj.hide();
        };
        this.init();
    };

    $.fn.pagination = function (parameter, callback) {
        if (typeof parameter == 'function') {//重载
            callback = parameter;
            parameter = {};
        } else {
            parameter = parameter || {};
            callback = callback || function () { };
        }
        var options = $.extend({}, defaults, parameter);
        return this.each(function () {
            var pagination = new pagination(this, options);
            callback(pagination);
        });
    };

}));