var SerialPort = require("serialport");

class AsicMiner {
	constructor(dev, baud) {
		this.ready = false;
		this.error = null;

		this._onready = [];

		this._port = new SerialPort(dev, {
			baudRate: baud
		});

		this._port.on("error", msg => {
			this.error = msg;
			this._onready.forEach(x => x());
		});
		this._port.on("open", () => {
			this.ready = true;
			this._onready.forEach(x => x());
		});
		this._port.on("data", d => {
			console.log("From "+dev+": "+d);
		});
	}

	wait() {
		return new Promise((resolve, reject) => {
			if (this.ready)
				return resolve();

			this._onready.push(resolve);
		});
	}
}

module.exports = AsicMiner;