郑州住房保障局公示信息统计 预售楼盘价格的统计（统计均价、最高、最低价 同一户型的均价、最高、最低价）
// ==UserScript==
// @name 郑州房奴助手.js
// @namespace http://tampermonkey.net/
// @version 0.2
// @description 郑州住房保障局公示信息统计 预售楼盘价格的统计（统计均价、最高、最低价 同一户型的均价、最高、最低价）
// @author You
// @match http://*/*
// @icon data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant none
// @include *://http://218.28.223.8/*
// ==/UserScript==
(function() {
'use strict';
// map分组函数
function groupBy(array, f) {
let groups = {};
array.forEach(function(o) {
let group = JSON.stringify(f(o));
groups[group] = groups[group] || [];
groups[group].push(o);
});
return Object.keys(groups).map(function(group) {
return groups[group];
});
}
// 郑州住房保障局
function zzzfbzjHandler() {
this.addHtmlElements = function() {
// var div = document.createElement("div");
// div.innerHTML = "<button id='button_0023' style='position:absolute;right:100;top:10' '>房奴助手</button>"
// document.getElementsByClassName("inner1")[1].appendChild(div);
var parentNode = document.getElementsByClassName('main-wrap clearfix')[2];
var beforeNode = document.getElementsByClassName("inner1")[1];
var targetNode = document.createElement("div")
targetNode.className = "inner1";
targetNode.style = "width: 100%;"
targetNode.innerHTML = "<h4>房奴助手</h4><span>请先选择楼栋、单元 再</span><button id='button_0023' style='margin-left:10'>点击计算</button><button id='button_0024' style='margin-left:10'>清除</button><div id='result_0023'></div>";
parentNode.insertBefore(targetNode, beforeNode);
}
this.bindEvent = function() {
$("#button_0023").on("click", function() {
var elements = document.getElementsByClassName("yisou")
let datas = [];
Array.from(elements).forEach(function(element, index) {
var number = element.innerText.match(/编号：(\S*)/)[1];
var price = element.innerText.match(/预售申报价：(\S*)元\/㎡/)[1];
let map = new Map();
map.set("number", Number(number));
map.set("price", Number(price));
map.set("floor", Math.floor(Number(number) / 100));
map.set("room", Number(number) % 10);
datas.push(map);
});
let rooms = groupBy(datas, function(item) { return item.get("room") });
let floors = groupBy(datas, function(item) { return item.get("floor") });
// 房间统计
var resultHTML = "共" + floors.length + "层 一层" + rooms.length + "户 总计" + datas.length + "个房间";
// 计算均价
let average = datas.map(function(item) { return item.get("price") }).reduce(function(total, current) { return total + current }, 0) / datas.length;
resultHTML = resultHTML + " " + "平均价格:" + average.toFixed(2) + "/㎡";
// 找到最贵的 最便宜的
let maxPriceRoom = datas.sort(function(item1, item2) { return item1.get("price") - item2.get("price") })[datas.length - 1];
resultHTML = resultHTML + " " + "最贵的是:" + maxPriceRoom.get("number") + " 价格:" + maxPriceRoom.get("price") + "/㎡";
let minPriceRoom = datas.sort(function(item1, item2) { return item2.get("price") - item1.get("price") })[datas.length - 1];
resultHTML = resultHTML + " " + "最便宜的是:" + minPriceRoom.get("number") + " 价格:" + minPriceRoom.get("price") + "/㎡";
// 找到同户型最贵的 最便宜的
rooms.forEach(function(items) {
// 同户型的均价
let average = items.map(function(item) { return item.get("price") }).reduce(function(total, current) { return total + current }, 0) / items.length;
resultHTML = resultHTML + "<br>" + items[0].get("room") + "号房间平均价格：" + average.toFixed(2) + "/㎡";
// 同户型最贵 最便宜
let maxPriceRoom = items.sort(function(item1, item2) { return item1.get("price") - item2.get("price") })[items.length - 1];
resultHTML = resultHTML + " 最贵的是:" + maxPriceRoom.get("number") + " 价格:" + maxPriceRoom.get("price") + "/㎡";
let minPriceRoom = items.sort(function(item1, item2) { return item2.get("price") - item1.get("price") })[items.length - 1];
resultHTML = resultHTML + " 最便宜的是:" + minPriceRoom.get("number") + " 价格:" + minPriceRoom.get("price") + "/㎡";
})
var resultNode = document.getElementById("result_0023");
resultNode.innerHTML = resultHTML;
console.log(resultHTML);
});
$("#button_0024").on("click", function() {
var resultNode = document.getElementById("result_0023");
resultNode.innerHTML = "";
});
console.log("绑定事件ok")
}
this.start = function() {
var pathName = window.document.location.pathname;
if (pathName.indexOf("/gov/search.html") >= 0) {
this.addHtmlElements();
this.bindEvent();
}
}
}
// 入口函数
var domain = document.domain;
console.log("document.domain:", document.domain);
switch (domain) {
case "218.28.223.8":
new zzzfbzjHandler().start();
break;
default:
console.log("不是目标网站");
}
})();