btc-rpc-explorer/bin/refresh-mining-pool-configs.js

#!/usr/bin/env node

"use strict";

const os = require("os");
const path = require("path");
const dotenv = require("dotenv");
const fs = require("fs");
const axios = require("axios");

const utils = require("../app/utils.js");
const coins = require("../app/coins.js");

async function refreshMiningPoolsForCoin(coinName) {
	console.log(`Refreshing mining pools for ${coinName}...`);
		
	if (coins[coinName].miningPoolsConfigUrls) {
		const miningPoolsConfigDir = path.join(__dirname, "..", "public", "txt", "mining-pools-configs", coinName);
		
		fs.readdir(miningPoolsConfigDir, (err, files) => {
			if (err) {
				throw new Error(`Unable to delete existing files from '${miningPoolsConfigDir}'`);
			}

			files.forEach(function(file) {
				// delete existing file
				fs.unlinkSync(path.join(miningPoolsConfigDir, file));
			});
		});

		const miningPoolsConfigUrls = coins[coinName].miningPoolsConfigUrls;

		const promises = [];

		console.log(`${miningPoolsConfigUrls.length} mining pool config(s) found for ${coinName}`);

		for (let i = 0; i < miningPoolsConfigUrls.length; i++) {
			promises.push(refreshMiningPoolConfig(coinName, i, miningPoolsConfigUrls[i]));
		}

		await Promise.all(promises);

		console.log(`Refreshed ${miningPoolsConfigUrls.length} mining pool config(s) for ${coinName}\n---------------------------------------------`);

	} else {
		console.log(`No mining pool URLs configured for ${coinName}`);

		throw new Error(`No mining pool URLs configured for ${coinName}`);
	}
}

async function refreshMiningPoolConfig(coinName, index, url) {
	try {
		const response = await axios.get(url, { transformResponse: res => res });

		const filename = path.join(__dirname, "..", "public", "txt", "mining-pools-configs", coinName, index + ".json");

		fs.writeFileSync(filename, response.data, (err) => {
			console.log(`Error writing file '${filename}': ${err}`);
		});

		console.log(`Wrote '${coinName}/${index}.json' with contents of url: ${url}`);

	} catch (err) {
		console.log(`Error downloading mining pool config for ${coinName}: url=${url}`);

		throw err;
	}
}

async function refreshAllMiningPoolConfigs() {
	const outerPromises = [];

	for (let i = 0; i < coins.coins.length; i++) {
		const coinName = coins.coins[i];

		await refreshMiningPoolsForCoin(coinName);
	}
}

refreshAllMiningPoolConfigs().then(() => {
	process.exit();
});