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main.js
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main.js
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/* eslint-env browser */
/* global $, alertify, ga, EJS, google, web3 */
/* eslint no-console: ["error", { allow: ["log"] }] */
const getParameterByName = (nameIn, urlIn) => {
const url = urlIn || window.location.href;
const name = nameIn.replace(/[\[\]]/g, '\\$&'); // eslint-disable-line no-useless-escape
const regex = new RegExp(`[?&]${name}(=([^&#]*)|&|#|$)`);
const results = regex.exec(url);
if (!results) return null;
if (!results[2]) return '';
return decodeURIComponent(results[2].replace(/\+/g, ' '));
};
const configName = getParameterByName('config');
let config;
if (configName === 'testnet') {
config = require('./config_testnet.js'); // eslint-disable-line global-require
} else {
config = require('./config.js'); // eslint-disable-line global-require
}
const Web3 = require('web3');
const utility = require('./common/utility.js')(config);
const sha256 = require('js-sha256').sha256;
const BigNumber = require('bignumber.js');
require('datejs');
const async = typeof window === 'undefined' ? require('async') : require('async/dist/async.min.js');
const translations = require('./translations.js');
function EtherDelta() {
this.q = async.queue((task, callback) => {
task(callback);
}, 1);
this.addrs = undefined;
this.pks = undefined;
this.addrKinds = {};
this.selectedAccount = 0;
this.selectedToken = undefined;
this.selectedBase = undefined;
this.cookie = undefined;
this.connection = undefined;
this.nonce = undefined;
this.price = undefined;
this.priceUpdated = Date.now();
this.contractEtherDelta = undefined;
this.contractToken = undefined;
this.eventsCache = {};
this.publishingOrders = false;
this.pendingTransactions = [];
this.defaultdecimals = new BigNumber(1000000000000000000);
this.language = 'en';
this.minOrderSize = 0.01;
this.messageToSend = undefined;
this.translator = undefined;
this.secondsPerBlock = 15;
this.usersWithOrdersToUpdate = {};
this.apiServerNonce = undefined;
this.ordersResultByPair = { orders: [], blockNumber: 0 };
this.topOrdersResult = { orders: [], blockNumber: 0 };
this.selectedContract = undefined;
this.returnTicker = {};
this.web3 = undefined;
this.daysOfData = 7;
this.minGas = 0.005;
window.addEventListener('load', () => {
this.startEtherDelta();
});
}
EtherDelta.prototype.ejs = function ejs(url, element, data) {
if ($(`#${element}`).length) {
new EJS({ url }).update(element, data);
this.translator.lang(this.language);
} else {
console.log(`Failed to render template because ${element} does not exist.`);
}
};
if (!alertify.dialogError) {
alertify.dialog('dialogError', function factory() { // eslint-disable-line prefer-arrow-callback
const header = '<span class="fa fa-times-circle fa-2x" style="vertical-align: middle; color: #ff0000;"></span> Error';
return {
build() {
this.setHeader(header);
},
};
}, true, 'alert');
}
if (!alertify.dialogInfo) {
alertify.dialog('dialogInfo', function factory() { // eslint-disable-line prefer-arrow-callback
const header = '<span class="fa fa-info-circle fa-2x" style="vertical-align: middle; color: #0000ff;"></span>';
return {
build() {
this.setHeader(header);
},
};
}, true, 'alert');
}
EtherDelta.prototype.dialogInfo = function dialogInfo(message) {
console.log(message);
alertify.dialogInfo(message);
ga('send', {
hitType: 'event',
eventCategory: 'Dialog',
eventAction: 'Info',
});
};
EtherDelta.prototype.dialogError = function dialogError(message) {
console.log(message);
alertify.dialogError(message);
ga('send', {
hitType: 'event',
eventCategory: 'Dialog',
eventAction: 'Error',
});
};
EtherDelta.prototype.alertSuccess = function alertSuccess(message) {
console.log(message);
alertify.success(message);
ga('send', {
hitType: 'event',
eventCategory: 'Alert',
eventAction: 'Success',
});
};
EtherDelta.prototype.txError = function txError(err) {
console.log('Error', err);
utility.getBalance(this.web3, this.addrs[this.selectedAccount], (errBalance, resultBalance) => {
const balance = utility.weiToEth(resultBalance);
if (this.connection.connection === 'RPC' && this.addrKinds[this.selectedAccount] !== 'MetaMask') {
if (this.pks[this.selectedAccount]) {
this.dialogError('You are using an EtherDelta account that has a private key attached, but you\'re connected to MetaMask. You should disable MetaMask from Chrome\'s Window -> Extensions menu (don\'t worry, this won\'t lose your MetaMask data), then refresh EtherDelta.');
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Ethereum - transaction error',
});
} else {
this.dialogError('You are connected to MetaMask, but you are either using a non-MetaMask account, or you are not logged into the MetaMask account you have selected. Check this in MetaMask, then refresh and try again.');
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Ethereum - transaction error',
});
}
} else if (this.connection.connection === 'Proxy' && !this.pks[this.selectedAccount]) {
this.dialogError('You are using an EtherDelta account that doesn\'t have a private key attached. Perhaps you created the account using MetaMask, in which case you should make sure MetaMask is enabled and logged in to this account, then refresh EtherDelta. Or, if you have the private key, you can choose "Import account" from the accounts dropdown (upper right) to re-import the account with its private key.');
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Ethereum - transaction error',
});
} else if (this.connection.connection === 'Proxy' && !utility.verifyPrivateKey(this.addrs[this.selectedAccount], this.pks[this.selectedAccount])) {
this.dialogError('You are using an EtherDelta account that has an invalid private key.');
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Ethereum - transaction error',
});
} else if (this.connection.connection === 'Proxy' && balance < 2 * this.minGas) {
this.dialogError(
`Your wallet's ETH balance (${balance} ETH) is not enough to cover the gas cost (Ethereum network fee). EtherDelta sends ${this.minGas} ETH with each transaction. This is an overestimate and the excess will get refunded to you. It's a good idea to send more than ${this.minGas} so you can pay for not only this transaction, but also future transactions you do on EtherDelta. The gas has to come directly from your Wallet (EtherDelta has no physical way of paying gas from your deposited ETH).`);
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Ethereum - transaction error',
});
} else {
this.dialogError('You tried to send an Ethereum transaction but there was an error.');
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Ethereum - transaction error',
});
}
});
};
EtherDelta.prototype.alertTxResult = function alertTxResult(err, txsIn) {
const txs = Array.isArray(txsIn) ? txsIn : [txsIn];
if (err) {
this.txError(err);
} else {
if (txs.length === 1) {
const tx = txs[0];
if (
tx.txHash &&
tx.txHash !== '0x0000000000000000000000000000000000000000000000000000000000000000'
) {
this.dialogInfo(
`You just created an Ethereum transaction. Track its progress: <a href="https://${this.config.ethTestnet ? `${this.config.ethTestnet}.` : ''}etherscan.io/tx/${tx.txHash}" target="_blank">${tx.txHash}</a>.`);
} else {
this.txError();
}
} else if (txs.length > 1) {
if (txs.findIndex(x => !x.txHash) < 0) {
let message = 'You just created Ethereum transactions. Track their progress: <br />';
txs.forEach((tx) => {
message += `<a href="https://${this.config.ethTestnet ? `${this.config.ethTestnet}.` : ''}etherscan.io/tx/${tx.txHash}" target="_blank">${tx.txHash}</a><br />`;
});
this.dialogInfo(message);
} else {
this.txError();
}
}
ga('send', {
hitType: 'event',
eventCategory: 'Ethereum',
eventAction: `Ethereum transactions (${txs.length})`,
});
}
};
EtherDelta.prototype.enableTooltipsAndPopovers = function enableTooltipsAndPopovers() {
$('[data-toggle="popover"]').popover({ trigger: 'hover' });
$('[data-toggle="tooltip"]').tooltip();
};
EtherDelta.prototype.createAccount = function createAccount() {
const newAccount = utility.createAccount();
const addr = newAccount.address;
const pk = newAccount.privateKey;
this.addAccount(addr, pk);
this.dialogInfo(
`You just created an Ethereum account: ${addr}<br /><br />Please BACKUP the private key for this account: ${pk}`);
ga('send', {
hitType: 'event',
eventCategory: 'Action',
eventAction: 'Create Account',
});
};
EtherDelta.prototype.deleteAccount = function deleteAccount() {
if (this.pks[this.selectedAccount]) {
const addr = this.addrs[this.selectedAccount];
const pk = this.pks[this.selectedAccount];
this.dialogInfo(
`You are about to remove an Ethereum account: ${addr}<br /><br />If it has funds, please BACKUP the private key for this account: ${pk}`);
ga('send', {
hitType: 'event',
eventCategory: 'Action',
eventAction: 'Show private key and delete',
});
}
this.addrs.splice(this.selectedAccount, 1);
this.pks.splice(this.selectedAccount, 1);
this.selectedAccount = 0;
this.nonce = undefined;
this.refresh(() => {}, true, true);
ga('send', {
hitType: 'event',
eventCategory: 'Action',
eventAction: 'Delete Account',
});
};
EtherDelta.prototype.selectAccount = function selectAccount(i) {
this.selectedAccount = i;
this.nonce = undefined;
this.refresh(() => {}, true, true);
ga('send', {
hitType: 'event',
eventCategory: 'Action',
eventAction: 'Select Account',
});
};
EtherDelta.prototype.addAccount = function addAccount(newAddr, newPk) {
let addr = newAddr.toLowerCase();
let pk = newPk;
if (addr.slice(0, 2) !== '0x') addr = `0x${addr}`;
if (pk.slice(0, 2) === '0x') pk = pk.slice(2);
addr = utility.toChecksumAddress(addr);
let verifyPrivateKey;
try {
verifyPrivateKey = utility.verifyPrivateKey(addr, pk);
} catch (err) {
verifyPrivateKey = false;
}
if (pk && !verifyPrivateKey) {
this.dialogError(`For account ${addr}, the private key is invalid.`);
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Add Account - invalid private key',
});
} else if (!this.web3.isAddress(addr)) {
this.dialogError(`The specified address, ${addr}, is invalid.`);
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Add Account - invalid address',
});
} else {
this.addrs.push(addr);
this.pks.push(pk);
this.selectedAccount = this.addrs.length - 1;
this.nonce = undefined;
this.refresh(() => {}, true, true);
ga('send', {
hitType: 'event',
eventCategory: 'Action',
eventAction: 'Add Account',
});
}
};
EtherDelta.prototype.showPrivateKey = function showPrivateKey() {
const addr = this.addrs[this.selectedAccount];
const pk = this.pks[this.selectedAccount];
if (!pk) {
this.dialogError(
`For account ${addr}, there is no private key available. You can still transact if you are connected to Ethereum and the account is unlocked.`);
ga('send', {
hitType: 'event',
eventCategory: 'Error',
eventAction: 'Show private key - unavailable',
});
} else {
this.dialogInfo(`For account ${addr}, the private key is ${pk}.`);
ga('send', {
hitType: 'event',
eventCategory: 'Action',
eventAction: 'Show private key',
});
}
};
EtherDelta.prototype.addressLink = function addressLink(address) {
return `https://${this.config.ethTestnet ? `${this.config.ethTestnet}.` : ''}etherscan.io/address/${address}`;
};
EtherDelta.prototype.contractAddr = function contractAddr(addr) {
this.config.contractEtherDeltaAddr = addr;
this.displayConnectionDescription(() => {});
this.loading(() => {});
this.refresh(() => {}, true, true);
};
EtherDelta.prototype.displayAccounts = function displayAccounts(callback) {
if (this.addrs.length <= 0 || this.addrs.length !== this.pks.length) {
this.addrs = [this.config.ethAddr];
this.pks = [this.config.ethAddrPrivateKey];
this.selectedAccount = 0;
}
async.map(
this.addrs.map((x, i) => i),
(i, callbackMap) => {
const addr = this.addrs[i];
const pk = this.pks[i] ? true : false; // eslint-disable-line no-unneeded-ternary
const kind = this.addrKinds[i];
utility.getBalance(this.web3, addr, (err, balance) => {
callbackMap(null, { addr, balance, pk, kind });
});
},
(err, addresses) => {
const addressLink = `https://${this.config.ethTestnet ? `${this.config.ethTestnet}.` : ''}etherscan.io/address/${this.addrs[this.selectedAccount]}`;
this.ejs(`${this.config.homeURL}/templates/addresses.ejs`, 'addresses', {
addresses,
selectedAccount: this.selectedAccount,
addressLink,
connection: this.connection.connection,
});
callback();
});
};
EtherDelta.prototype.displayLanguages = function displayLanguages(callback) {
const languages = Object.keys(translations.trades);
this.ejs(`${this.config.homeURL}/templates/languages.ejs`, 'languages', {
languages,
language: this.language,
});
callback();
};
EtherDelta.prototype.selectLanguage = function selectLanguage(newLanguage) {
this.language = newLanguage;
window.title = translations.title[this.language];
this.translator.lang(this.language);
this.displayLanguages(() => {});
this.refresh(() => {}, true, true);
ga('send', {
hitType: 'event',
eventCategory: 'Action',
eventAction: 'Select language',
eventLabel: newLanguage,
});
};
EtherDelta.prototype.loadEvents = function loadEvents(callback) {
let lastBlock = 0;
Object.keys(this.eventsCache).forEach((id) => {
const event = this.eventsCache[id];
if (event.blockNumber > lastBlock && event.address === this.config.contractEtherDeltaAddr) {
lastBlock = event.blockNumber;
}
});
console.log('lastBlock', lastBlock);
utility.getURL(`${this.config.apiServer}/events/${this.apiServerNonce}/${lastBlock}`, (err, result) => {
if (!err && result !== 'error') {
try {
const res = JSON.parse(result);
const blockNumber = res.blockNumber;
const events = res.events;
let newEvents = 0;
Object.values(events).forEach((event) => {
if (!this.eventsCache[event.transactionHash + event.logIndex]) {
Object.keys(event.args).forEach((arg) => {
if (typeof event.args[arg] === 'string' && event.args[arg].slice(0, 2) !== '0x') {
Object.assign(event.args, { [arg]: new BigNumber(event.args[arg]) });
}
});
newEvents += 1;
this.eventsCache[event.transactionHash + event.logIndex] = event;
// users with orders to update
if (event.event === 'Trade') {
this.usersWithOrdersToUpdate[event.args.give] = true;
this.usersWithOrdersToUpdate[event.args.get] = true;
} else if (['Deposit', 'Withdraw', 'Cancel'].indexOf(event.event) >= 0) {
this.usersWithOrdersToUpdate[event.args.user] = true;
}
}
});
Object.keys(this.eventsCache).forEach((key) => {
if (this.eventsCache[key].blockNumber <
blockNumber - ((86400 * this.daysOfData) / this.secondsPerBlock)) {
delete this.eventsCache[key];
}
});
callback(null, newEvents);
} catch (errGet) {
console.log('Events log has not changed since last refresh.');
callback(null, 0);
}
} else {
this.apiServerNonce = Math.random().toString().slice(2) +
Math.random().toString().slice(2);
callback(null, 0);
}
});
};
EtherDelta.prototype.displayMyTransactions =
function displayMyTransactions(ordersIn, blockNumber, callback) {
// only look at orders for the selected token and base
let orders = ordersIn.filter(
x =>
(x.order.tokenGet.toLowerCase() === this.selectedToken.addr.toLowerCase() &&
x.order.tokenGive.toLowerCase() === this.selectedBase.addr.toLowerCase() &&
x.amount > 0) ||
(x.order.tokenGive.toLowerCase() === this.selectedToken.addr.toLowerCase() &&
x.order.tokenGet.toLowerCase() === this.selectedBase.addr.toLowerCase() &&
x.amount < 0));
// only include orders by the selected user
orders = orders.filter(
order => this.addrs[this.selectedAccount].toLowerCase() === order.order.user.toLowerCase());
// filter only orders that match the smart contract address
orders = orders.filter(order => order.order.contractAddr === this.config.contractEtherDeltaAddr);
// final order filtering and sorting
const buyOrders = orders.filter(x => x.amount > 0);
const sellOrders = orders.filter(x => x.amount < 0);
sellOrders.sort((a, b) => b.price - a.price || b.id - a.id);
buyOrders.sort((a, b) => b.price - a.price || a.id - b.id);
// events
const myEvents = [];
const events = Object.values(this.eventsCache);
events.forEach((event) => {
try {
if (
event.event === 'Trade' &&
event.address === this.config.contractEtherDeltaAddr &&
(event.args.get.toLowerCase() === this.addrs[this.selectedAccount].toLowerCase() ||
event.args.give.toLowerCase() === this.addrs[this.selectedAccount].toLowerCase())
) {
let trade;
if (event.args.amountGive.toNumber() > 0 && event.args.amountGet.toNumber() > 0) {
// don't show trades involving 0 amounts
if (
event.args.tokenGet.toLowerCase() === this.selectedToken.addr.toLowerCase() &&
event.args.tokenGive.toLowerCase() === this.selectedBase.addr.toLowerCase()
) {
// sell
trade = {
amount: -event.args.amountGet,
price: event.args.amountGive
.div(event.args.amountGet)
.mul(this.getDivisor(event.args.tokenGet))
.div(this.getDivisor(event.args.tokenGive)),
buyer: event.args.get,
seller: event.args.give,
};
} else if (
event.args.tokenGet.toLowerCase() === this.selectedBase.addr.toLowerCase() &&
event.args.tokenGive.toLowerCase() === this.selectedToken.addr.toLowerCase()
) {
// buy
trade = {
amount: event.args.amountGive,
price: event.args.amountGet
.div(event.args.amountGive)
.mul(this.getDivisor(event.args.tokenGive))
.div(this.getDivisor(event.args.tokenGet)),
buyer: event.args.give,
seller: event.args.get,
};
}
}
if (trade) {
const txLink = `https://${this.config.ethTestnet ? `${this.config.ethTestnet}.` : ''}etherscan.io/tx/${event.transactionHash}`;
myEvents.push({
trade,
id: (event.blockNumber * 1000) + event.transactionIndex,
blockNumber: event.blockNumber,
txLink,
});
}
} else if (
event.event === 'Deposit' &&
event.address === this.config.contractEtherDeltaAddr &&
(
event.args.token === this.selectedBase.addr ||
event.args.token === this.selectedToken.addr
) &&
event.args.user.toLowerCase() === this.addrs[this.selectedAccount].toLowerCase()
) {
const txLink = `https://${this.config.ethTestnet ? `${this.config.ethTestnet}.` : ''}etherscan.io/tx/${event.transactionHash}`;
const deposit = {
token: event.args.token === this.selectedToken.addr ?
this.selectedToken : this.selectedBase,
amount: event.args.amount,
balance: event.args.balance,
};
myEvents.push({
deposit,
id: (event.blockNumber * 1000) + event.transactionIndex,
blockNumber: event.blockNumber,
txLink,
});
} else if (
event.event === 'Withdraw' &&
event.address === this.config.contractEtherDeltaAddr &&
(
event.args.token === this.selectedBase.addr ||
event.args.token === this.selectedToken.addr
) &&
event.args.user.toLowerCase() === this.addrs[this.selectedAccount].toLowerCase()
) {
const txLink = `https://${this.config.ethTestnet ? `${this.config.ethTestnet}.` : ''}etherscan.io/tx/${event.transactionHash}`;
const withdraw = {
token: event.args.token === this.selectedToken.addr ?
this.selectedToken : this.selectedBase,
amount: event.args.amount,
balance: event.args.balance,
};
myEvents.push({
withdraw,
id: (event.blockNumber * 1000) + event.transactionIndex,
blockNumber: event.blockNumber,
txLink,
});
}
} catch (err) {
console.log(err);
}
});
myEvents.sort((a, b) => b.id - a.id);
// pending transactions
async.map(
this.pendingTransactions,
(tx, callbackMap) => {
utility.txReceipt(this.web3, tx.txHash, (err, result) => {
if (!err && result && result.blockNumber) {
callbackMap(null, undefined);
} else {
callbackMap(null, tx);
}
});
},
(err, results) => {
this.pendingTransactions = results.filter(x => x);
// display the template
this.ejs(`${this.config.homeURL}/templates/myTrades.ejs`, 'myTrades', {
translator: this.translator,
selectedAddr: this.addrs[this.selectedAccount],
selectedToken: this.selectedToken,
selectedBase: this.selectedBase,
myEvents,
pendingTransactions: this.pendingTransactions,
blockNumber,
});
this.ejs(`${this.config.homeURL}/templates/myOrders.ejs`, 'myOrders', {
translator: this.translator,
selectedAddr: this.addrs[this.selectedAccount],
selectedToken: this.selectedToken,
selectedBase: this.selectedBase,
buyOrders,
sellOrders,
blockNumber,
});
callback();
});
};
EtherDelta.prototype.isInCross = function isInCross(priceIn, kind) {
const price = new BigNumber(priceIn);
if (price === undefined || price <= 0) return undefined;
const orders = this.ordersResultByPair.orders;
// remove orders below the min order limit
const ordersFiltered = orders.filter(order =>
Number(order.ethAvailableVolume).toFixed(3) >= this.minOrderSize &&
Number(order.ethAvailableVolumeBase).toFixed(3) >= this.minOrderSize)
.filter(
order => order.order.contractAddr === this.config.contractEtherDeltaAddr);
// final order filtering and sorting
const buyOrders = ordersFiltered.filter(x => x.amount > 0);
const sellOrders = ordersFiltered.filter(x => x.amount < 0);
sellOrders.sort((a, b) => b.price - a.price || b.id - a.id);
buyOrders.sort((a, b) => b.price - a.price || a.id - b.id);
const bid = buyOrders.length > 0 ? buyOrders[0].price : undefined;
const ask = sellOrders.length > 0 ? sellOrders[sellOrders.length - 1].price : undefined;
if (kind === 'buy' && ask && price > ask * 1.5) {
return ask;
} if (kind === 'sell' && bid && price < bid * 0.5) {
return bid;
}
return undefined;
};
EtherDelta.prototype.displayVolumes = function displayVolumes(
orders, returnTicker, blockNumber, callback) {
let tokenVolumes = {};
let pairVolumes = {};
// the default pairs
for (let i = 0; i < this.config.pairs.length; i += 1) {
const token = this.getToken(this.config.pairs[i].token);
const base = this.getToken(this.config.pairs[i].base);
if (token && base) {
const pair = `${token.name}/${base.name}`;
if (!pairVolumes[pair]) {
pairVolumes[pair] = {
token,
base,
volume: 0,
ethVolume: 0,
};
}
}
}
// get trading volume
Object.keys(this.returnTicker).forEach((returnKey) => {
const ret = this.returnTicker[returnKey];
const spl = returnKey.split('_');
const A = spl[0];
const B = spl[1];
const pair = `${B}/${A}`;
// console.log(pair)
if (pairVolumes[pair]) {
// console.log(pair, ret)
pairVolumes[pair].volume = Number(ret.quoteVolume);
pairVolumes[pair].ethVolume = Number(ret.baseVolume);
}
const tokenA = this.getToken(A);
const tokenB = this.getToken(B);
if (tokenA) {
if (tokenVolumes[A]) {
tokenVolumes[A].volume += Number(ret.baseVolume);
tokenVolumes[A].ethVolume += Number(ret.baseVolume);
} else {
tokenVolumes[A] = {
token: tokenA,
volume: Number(ret.baseVolume),
ethVolume: Number(ret.baseVolume),
};
}
}
if (tokenB) {
if (tokenVolumes[B]) {
tokenVolumes[B].volume += Number(ret.quoteVolume);
tokenVolumes[B].ethVolume += Number(ret.baseVolume);
} else {
tokenVolumes[B] = {
token: tokenB,
volume: Number(ret.quoteVolume),
ethVolume: Number(ret.baseVolume),
};
}
}
});
// get bid and ask
Object.keys(pairVolumes).forEach((pair) => {
const pairVolume = pairVolumes[pair];
const token = pairVolume.token;
const base = pairVolume.base;
// only look at orders for the selected token and base
let ordersFiltered = orders.filter(
x =>
(x.order.tokenGet.toLowerCase() === token.addr.toLowerCase() &&
x.order.tokenGive.toLowerCase() === base.addr.toLowerCase() && x.amount > 0) ||
(x.order.tokenGive.toLowerCase() === token.addr.toLowerCase() &&
x.order.tokenGet.toLowerCase() === base.addr.toLowerCase() && x.amount < 0));
// remove orders below the min order limit
ordersFiltered = ordersFiltered.filter(order =>
Number(order.ethAvailableVolume).toFixed(3) >= this.minOrderSize &&
Number(order.ethAvailableVolumeBase).toFixed(3) >= this.minOrderSize);
// filter only orders that match the smart contract address
ordersFiltered = ordersFiltered.filter(
order => order.order.contractAddr === this.config.contractEtherDeltaAddr);
// final order filtering and sorting
const buyOrders = ordersFiltered.filter(x => x.amount > 0);
const sellOrders = ordersFiltered.filter(x => x.amount < 0);
sellOrders.sort((a, b) => b.price - a.price || b.id - a.id);
buyOrders.sort((a, b) => b.price - a.price || a.id - b.id);
const bid = buyOrders.length > 0 ? buyOrders[0].price : undefined;
const ask = sellOrders.length > 0 ? sellOrders[sellOrders.length - 1].price : undefined;
pairVolume.bid = bid;
pairVolume.ask = ask;
});
tokenVolumes = Object.values(tokenVolumes);
tokenVolumes.sort((a, b) => b.ethVolume - a.ethVolume);
pairVolumes = Object.values(pairVolumes);
pairVolumes.sort((a, b) => b.ethVolume - a.ethVolume);
this.ejs(`${this.config.homeURL}/templates/volume.ejs`, 'volume', {
tokenVolumes,
pairVolumes,
});
callback();
};
EtherDelta.prototype.displayTradesAndChart = function displayTradesAndChart(callback) {
// get the trade list
const events = Object.values(this.eventsCache);
const trades = [];
events.forEach((event) => {
if (event.event === 'Trade' && event.address === this.config.contractEtherDeltaAddr) {
if (event.args.amountGive.toNumber() > 0 && event.args.amountGet.toNumber() > 0) {
// don't show trades involving 0 amounts
let trade;
if (
event.args.tokenGet.toLowerCase() === this.selectedToken.addr.toLowerCase() &&
event.args.tokenGive.toLowerCase() === this.selectedBase.addr.toLowerCase()
) {
// sell
trade = {
amount: -event.args.amountGet,
price: event.args.amountGive
.div(event.args.amountGet)
.mul(this.getDivisor(event.args.tokenGet))
.div(this.getDivisor(event.args.tokenGive)),
id: (event.blockNumber * 1000) + event.transactionIndex,
blockNumber: event.blockNumber,
date: new Date(utility.hexToDec(event.timeStamp) * 1000),
buyer: event.args.get,
seller: event.args.give,
};
} else if (
event.args.tokenGet.toLowerCase() === this.selectedBase.addr.toLowerCase() &&
event.args.tokenGive.toLowerCase() === this.selectedToken.addr.toLowerCase()
) {
// buy
trade = {
amount: event.args.amountGive,
price: event.args.amountGet
.div(event.args.amountGive)
.mul(this.getDivisor(event.args.tokenGive))
.div(this.getDivisor(event.args.tokenGet)),
id: (event.blockNumber * 1000) + event.transactionIndex,
blockNumber: event.blockNumber,
date: new Date(utility.hexToDec(event.timeStamp) * 1000),
buyer: event.args.give,
seller: event.args.get,
};
}
if (trade) {
trade.txLink = `https://${this.config.ethTestnet ? `${this.config.ethTestnet}.` : ''}etherscan.io/tx/${event.transactionHash}`;
trades.push(trade);
}
}
}
});
trades.sort((a, b) => b.id - a.id);
this.ejs(`${this.config.homeURL}/templates/trades.ejs`, 'trades', {
selectedAddr: this.addrs[this.selectedAccount],
selectedToken: this.selectedToken,
selectedBase: this.selectedBase,
trades,
});
// candlestick chart
function getDay(d) {
return ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'][d.getDay()];
}
const now = new Date();
const data = trades
.map(trade => [trade.date, trade.price.toNumber()])
.filter(x => now - x[0] < 86400 * 1000 * 7);
const values = data.map(x => x[1]);
values.sort();
let median = 0;
if (values.length > 0) {
median = values[Math.floor(values.length / 2)];
}
const days = { All: [], Sun: [], Mon: [], Tue: [], Wed: [], Thu: [], Fri: [], Sat: [] };
for (let i = data.length - 1; i >= 0; i -= 1) {
const date = data[i][0];
const price = data[i][1];
const day = getDay(date);
if (day !== getDay(now) || now - date < 86400 * 1000) {
if (Math.abs(price - median) / median < 3.0) {
// remove outliers
days[day].push(price);
days.All.push(price);
}
}
}
const dataCandlestick = [];
let date = new Date(now.getTime() - (86400 * 1000 * 6) - 1);
while (date < now) {
const day = getDay(date);
const points = days[day];
if (points && points.length > 0) {
if (points[points.length - 1] > points[0]) {
dataCandlestick.push([
day,
points.min(),
points[0],
points[points.length - 1],
points.max(),
]);
} else {
dataCandlestick.push([
day,
points.max(),
points[0],
points[points.length - 1],
points.min(),
]);
}
}
date = new Date(date.getTime() + (86400 * 1000));
}
this.candlestickChart(
'chartPrice',
'',
'',
'',
dataCandlestick,
days.All.min() * 0.7,
days.All.max() * 1.1);
callback();
};
EtherDelta.prototype.candlestickChart =
function candlestickChart(elem, title, xtitle, ytitle, data, minValue, maxValue) {
$(`#${elem}`).html('');
google.charts.setOnLoadCallback(() => {
try {
if (data.length > 0) {
const dataTable = google.visualization.arrayToDataTable(data, true);
const options = {
width: $(`#${elem}`).parent().width(),
height: $(`#${elem}`).parent().height(),
chartArea: { left: 50, width: '90%', height: '80%' },
backgroundColor: { fill: 'transparent' },
colors: ['#ccc'],
hAxis: {
title: xtitle,
baselineColor: '#fff',
gridlines: { color: '#fff' },
textStyle: { color: '#fff' },
},
vAxis: {
title: ytitle,
viewWindowMode: 'explicit',
viewWindow: {
min: minValue,
max: maxValue,
},
gridlines: { color: '#fff' },
textStyle: { color: '#fff' },
},
legend: 'none',
enableInteractivity: true,
title,
candlestick: {
fallingColor: { strokeWidth: 0, fill: '#f00' },
risingColor: { strokeWidth: 0, fill: '#0f0' },
},
};
const chart = new google.visualization.CandlestickChart(document.getElementById(elem));
chart.draw(dataTable, options);
}
} catch (err) {
console.log(err);
}
});
};
EtherDelta.prototype.depthChart =
function depthChart(elem, title, xtitle, ytitle, data, minX, maxX) {
$(`#${elem}`).html('');
google.charts.setOnLoadCallback(() => {
try {
if (data.length > 1) {
const dataTable = google.visualization.arrayToDataTable(data);
const options = {
width: $(`#${elem}`).parent().width(),
height: $(`#${elem}`).parent().height(),
chartArea: { left: 50, width: '90%', height: '80%' },
backgroundColor: { fill: 'transparent' },
colors: ['#0f0', '#f00'],
title,
hAxis: {
viewWindowMode: 'explicit',
viewWindow: {
min: minX,
max: maxX,
},
title: xtitle,
titleTextStyle: { color: '#fff' },
gridlines: { color: '#fff' },
textStyle: { color: '#fff' },
},
vAxis: {
minValue: 0,
gridlines: { color: '#fff' },
textStyle: { color: '#fff' },
},
legend: 'none',
tooltip: { isHtml: true },
};
const chart = new google.visualization.SteppedAreaChart(document.getElementById(elem));
chart.draw(dataTable, options);
}
} catch (err) {
console.log(err);
}
});
};
EtherDelta.prototype.lineChart =
function lineChart(elem, title, xtype, ytype, xtitle, ytitle, data) {
$(`#${elem}`).html('');
google.charts.setOnLoadCallback(() => {
try {
if (data.length > 0) {
const dataTable = new google.visualization.DataTable();
dataTable.addColumn(xtype, 'X');
dataTable.addColumn(ytype, ytitle);
dataTable.addRows(data);
const options = {
width: $(`#${elem}`).parent().width(),
height: $(`#${elem}`).parent().height(),
chartArea: { left: 50, width: '90%', height: '80%' },
hAxis: { title: xtitle },
vAxis: { title: ytitle },
legend: 'none',
enableInteractivity: true,
title,
};
const chart = new google.visualization.LineChart(document.getElementById(elem));
chart.draw(dataTable, options);
}
} catch (err) {
console.log(err);
}
});
};
EtherDelta.prototype.getOrdersByPair = function getOrdersByPair(tokenA, tokenB, callback) {
utility.getURL(`${this.config.apiServer}/orders/${this.apiServerNonce}/${tokenA}/${tokenB}`, (err, result) => {
if (!err && result !== 'error') {
try {
const res = JSON.parse(result);
const blockNumber = res.blockNumber;
let orders;
if (Array.isArray(res.orders)) {
orders = res.orders;
} else {
orders = Object.values(res.orders);
}
orders.forEach((x) => {
Object.assign(x, {
price: new BigNumber(x.price),
// amount: new BigNumber(x.amount),
// availableVolume: new BigNumber(x.availableVolume),
// ethAvailableVolume: x.ethAvailableVolume,
order: Object.assign(x.order, {
amountGet: new BigNumber(x.order.amountGet),
amountGive: new BigNumber(x.order.amountGive),
expires: Number(x.order.expires),
nonce: Number(x.order.nonce),
tokenGet: x.order.tokenGet,
tokenGive: x.order.tokenGive,
user: x.order.user,
r: x.order.r,
s: x.order.s,
v: x.order.v ? Number(x.order.v) : undefined,
}),
});
});
callback(null, { orders, blockNumber });
} catch (errCatch) {
callback(err, this.ordersResultByPair);
}
} else {
this.apiServerNonce = Math.random().toString().slice(2) +
Math.random().toString().slice(2);
callback(err, this.ordersResultByPair);
}
});
};
EtherDelta.prototype.getReturnTicker = function getTopOrders(callback) {
utility.getURL(`${this.config.apiServer}/returnTicker`, (err, result) => {
if (!err && result !== 'error') {
try {
const res = JSON.parse(result);
callback(null, res);
} catch (errCatch) {
callback(err, this.returnTicker);