// ==UserScript==
// @name         微信公众号粉丝查看工具
// @namespace    https://mp.weixin.qq.com/cgi-bin/user_tag?action=get_all_data
// @version      0.1.2
// @description  微信公众号粉丝查看工具，可查看用户关注时间和可导出每页用户数据
// @author       Wilson
// @match        https://mp.weixin.qq.com/cgi-bin/user_tag?action=get_all_data*
// @icon         https://img.icons8.com/fluent/48/000000/user-male-circle.png
// @require      https://cdn.jsdelivr.net/npm/jquery@1.9.1/jquery.min.js
// @run-at       document-start
// @grant        GM_xmlhttpRequest
// @grant        unsafeWindow
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    //用户数据，记录每次变更的数据
    unsafeWindow.userData = [];

    //添加关注信息
    function addFllowInfo(userList) {
        for (let i in userList) {
            //添加关注时间
            let user = userList[i];
            user.user_openid = user.user_openid || user.id;
            user.user_create_time = user.user_create_time || user.create_time;
            let localDate = new Date(user.user_create_time * 1000).toLocaleString();
            //console.log(user.user_create_time, user.user_openid);
            let userName = document.querySelector(".user_info a[data-fakeid=" + user.user_openid + "]");
            //console.log(userName, user.user_openid);
            if (userName) userName.innerHTML += '&nbsp;&nbsp;&nbsp;&nbsp;<span style="color:#9a9a9a;">(' + localDate + ')</span>';
        }

         //导出按钮
         $(".tool_area .pagination").append('<span><a href="javascript:;" onclick="wx_user_export()" style="margin-top:4px;margin-left:15px;display:inline-block;">导出</a></span>');
    }

    //监听分页用户（ajax）
    //var lastUserUrl = "";
    (function(open) {
        XMLHttpRequest.prototype.open = function(method, url, async, user, pass) {

            this.addEventListener("readystatechange", function() {

                //console.log(this.readyState, this.status, this);

                if (this.readyState==4 && this.status==200 && url.indexOf("ction=get_user_list") !== -1) {
                    let json = JSON.parse(this.response);
                    //console.log(this.readyState, this.status, json);
                    let userList = json.user_list.user_info_list || [];
                    setTimeout(function(){
                        addFllowInfo(userList);
                    }, 400);
                    unsafeWindow.userData = userList;
                    unsafeWindow.wx_user_export_page++;
                }

                /*
                let userUrl = document.location.origin + url;
                if (lastUserUrl != userUrl && url.indexOf("ction=get_user_list") !== -1) {
                    console.log(userUrl);

                    GM_xmlhttpRequest({
                        method: "get",
                        url: userUrl,
                        onload: function(res){
                            if(res.status === 200){
                                console.log('sucess')
                                let json = JSON.parse(res.response);
                                let userList = json.user_list.user_info_list || [];
                                addFllowInfo(userList);
                                unsafeWindow.userData = userList;
                                unsafeWindow.wx_user_export_page++;
                            }else{
                                console.log('error')
                                console.log(res)
                            }
                        },
                        onerror : function(err){
                            console.log('error')
                            console.log(err)
                        }
                    });

                    //$.getJSON(userUrl, function(data){
                    //console.log(data);
                    //$.each(data.items, function(i,item){
                    // });
                    //});
                    lastUserUrl = userUrl;
                }
                */

            }, false);

            open.call(this, method, url, async, user, pass);
        };
    })(XMLHttpRequest.prototype.open);

    //导出用户数据
    unsafeWindow.wx_user_export_page = 1;
    unsafeWindow.wx_user_export = function() {
        let jsonData = unsafeWindow.userData;
        //列标题，逗号隔开，每一个逗号就是隔开一个单元格
        let str = `姓名,关注时间,openid,头像图片\n`;
        for (let i in jsonData) {
            let user = jsonData[i];
            user.user_openid = user.user_openid || user.id;
            if (!user.user_openid) continue;
            user.user_create_time = user.user_create_time || user.create_time;
            let localDate = new Date(user.user_create_time * 1000).toLocaleString();
            user.user_name = user.user_name || user.nick_name;
            console.log();
            user.user_head_img = user.user_head_img || document.location.origin + document.querySelector(".user_info img[data-id=" + user.user_openid + "]").src;
            str += `${user.user_name},${localDate},${user.user_openid},${user.user_head_img}\n`;
        }
        //encodeURIComponent解决中文乱码
        let uri = 'data:text/csv;charset=utf-8,\ufeff' + encodeURIComponent(str);
        //通过创建a标签实现
        var link = document.createElement("a");
        link.href = uri;
        //对下载的文件命名
        link.download = "微信公众号粉丝第" + unsafeWindow.wx_user_export_page + "页.csv";
        document.body.appendChild(link);
        link.click();
        document.body.removeChild(link);
    }

    //第一页用户数据（从js变量获取）
    window.addEventListener("load", function() {
        if (wx && wx.cgiData && wx.cgiData.user_list) {
            let userList = wx.cgiData.user_list || [];
            addFllowInfo(userList);
            unsafeWindow.userData = userList;
        }
    });
})();