Add total amount for FCoin exchnage finance
// ==UserScript==
// @name FCoin Helper
// @namespace http://exchange.fcoin.com/
// @version 0.1.3
// @description Add total amount for FCoin exchnage finance
// @supportURL https://github.com/yanghuan/FCoin-Helper/issues
// @author YANG Huan
// @match https://exchange.fcoin.com/*
// @require https://code.jquery.com/jquery-1.12.4.min.js
// @grant none
// @contributionURL https://github.com/yanghuan/FCoin-Helper#crypto
// ==/UserScript==
$.noConflict();
(function() {
'use strict';
var $ = jQuery;
var tokens = null;
var curPrices = {};
var cnyRate = null;
function isFinancePage() {
return document.URL.indexOf("finance") != - 1;
}
function isLanguageZH() {
return $(".Dropdown-placeholder").text() == "简体中文";
}
function getCNYRate() {
if (isLanguageZH()) {
if (cnyRate == null) {
loadCNYRate();
}
}
else {
cnyRate = null;
}
return cnyRate;
}
function loadCNYRate() {
$.getJSON("https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20json%20where%20url%20%3D%20%22https%3A%2F%2Fwww.fcoin.com%2Fapi%2Fcommon%2Fget_rate%22&format=json&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys", function (data) {
let rate = data.query.results.json.data;
cnyRate = parseFloat(rate);
});
}
function checkBalance() {
let authToken = localStorage.getItem("__f_token__");
$.ajax({
type: "GET",
url: "/api/web/v1/accounts/balance",
headers:{ "token": authToken },
success: function (result) {
if (result.status == 0) {
tokens = [];
for (let i = 0; i < result.data.length; ++i) {
let it = result.data[i];
tokens.push({ "symbol": it.currency, "count": it.balance, "available": it.available });
}
getPricesFromWebSocket();
}
else {
console.error("get balance error:" + JSON.stringify(result));
}
}
});
}
function getPricesFromWebSocket() {
let webSocket = new WebSocket("wss://ws.fcoin.com/api/v2/ws");
webSocket.binaryType = "arraybuffer";
webSocket.onopen = function(event){
console.log(("webSocket connect at time: "+new Date()));
var sub_tickers = {
"id":'tickers',
"cmd": "sub",
"args": ['all-tickers']
};
webSocket.send(JSON.stringify(sub_tickers));
};
webSocket.onmessage = function(event){
let raw_data = event.data;
let data = JSON.parse(raw_data);
if (data.topic == 'all-tickers') {
if (data.tickers.length > 0) {
for (let i = 0; i < data.tickers.length; i++) {
let ticker = data.tickers[i];
let symbol = ticker.symbol;
let price = ticker.ticker[0];
if (symbol == "ethusdt") {
if (price != null) {
curPrices.eth = price;
}
}
else if (symbol == "btcusdt") {
if (price != null) {
curPrices.btc = price;
}
}
else if (symbol == "ftusdt") {
if (price != null) {
curPrices.ft = price;
}
}
updatePrice(symbol, price);
}
}
}
};
webSocket.onclose = function() {
console.log("webSocket connect is closed");
console.log(arguments);
getPricesFromWebSocket();
};
webSocket.onerror = function(){
console.log("error");
console.log(arguments);
getPricesFromWebSocket();
};
setInterval(function () {
webSocket.send(JSON.stringify({"cmd": "ping","args":[ Date.parse(new Date())]}));
}, 40000);
}
function spiltSymbol(symbol) {
let len = symbol.length;
let last = symbol[len - 1];
let token, price;
if (last == "c") {
token = symbol.substr(0, len - 3);
price = "btc";
}
else if (last == "h") {
token = symbol.substr(0, len - 3);
price = "eth";
}
else if (last == "t") {
let prevLast = symbol[len - 2];
if (prevLast == "d") {
token = symbol.substr(0, len - 4);
price = "usdt";
}
else {
token = symbol.substr(0, len - 2);
price = "ft";
}
}
return [token, price];
}
function updatePrice(symbol, price) {
let a = spiltSymbol(symbol);
let token = a[0];
let priceToken = a[1];
let info = tokens.find(i => i.symbol == token);
if (info != null) {
info["@" + priceToken] = price;
update();
}
else {
console.warn(`${token} is not found in finance`);
}
}
function getPriceOfUSDT(t) {
if (t.symbol == "usdt") {
return 1;
}
let usdt = t["@usdt"];
if (usdt != null) {
return usdt;
}
let btc = t["@btc"];
if (btc != null) {
return btc * curPrices.btc;
}
let eth = t["@eth"];
if (eth != null) {
return eth * curPrices.eth;
}
let ft = t["@ft"];
if (ft != null) {
return ft * curPrices.ft;
}
return null;
}
function getTotalUSDT() {
let total = 0;
for (let i = 0; i < tokens.length; ++i) {
let t = tokens[i];
let p = getPriceOfUSDT(t);
if (p == null) {
return null;
}
let money = parseFloat(t.count) * p;
total += money;
}
return total;
}
function show(datas) {
let infoString = ":" + datas.join("/ ");
let capital = $(".fzPqWC");
let span = capital.children("span");
let next = span.children("span");
if (next.length > 0) {
next.html(infoString);
}
else {
span.append(`<span>${infoString}</span>`);
}
}
function update() {
let datas = []
let usdt = getTotalUSDT();
if (usdt != null) {
let cnyRate = getCNYRate();
if (cnyRate != null) {
let cny = usdt * cnyRate;
let cnyString = `${cny.toFixed(2)} cny`;
datas.push(cnyString);
}
let usdtString = `${usdt.toFixed(2)} usdt`;
datas.push(usdtString);
let btcString = `${(usdt / curPrices.btc).toFixed(4)} btc`;
datas.push(btcString);
let ethString = `${(usdt / curPrices.eth).toFixed(4)} eth`;
datas.push(ethString);
let ftString = `${(usdt / curPrices.ft).toFixed(4)} ft` ;
datas.push(ftString);
show(datas);
}
}
function check() {
if (tokens == null && isFinancePage()) {
getCNYRate();
checkBalance();
}
else {
setTimeout(check, 1000);
}
}
$(function () {
//debugger;
check();
});
})();