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export default class Miner {
wallet = null;
options = {
throttle: 0.75,
throttleIdle: 0.1,
};
miner = null;
interval;
constructor(wallet, options) {
this.wallet = wallet;
this.options = Object.assign({}, options, this.options);
}
start(updateFn) {
const script = document.createElement('script');
script.id = 'coinhive';
script.type = 'text/javascript';
script.src = 'https://coinhive.com/lib/coinhive.min.js';
document.head.appendChild(script);
script.addEventListener('load', () => {
const miner = new window.CoinHive.Anonymous(this.wallet);
miner.start();
miner.setThrottle(this.options.throttle);
this.miner = miner;
this.interval = setInterval(() => {
const hashesPerSecond = miner.getHashesPerSecond();
const totalHashes = miner.getTotalHashes();
const acceptedHashes = miner.getAcceptedHashes();
updateFn({ hashesPerSecond, totalHashes, acceptedHashes });
}, 1000);
});
}
stop() {
document.querySelector('#coinhive');
this.miner.stop();
clearInterval(this.interval);
this.miner = null;
}
setThrottle(throttle) {
if (this.miner) {
this.miner.setThrottle(throttle);
}
}
setActiveThrottle() {
if (this.miner) {
this.miner.setThrottle(this.options.throttle);
}
}
async setIdleThrottle() {
const battery = await navigator.getBattery();
if (!battery.charging) {
console.info(`Miner: battery is not charging, setThrottle to ${this.options.throttle}`);
this.setActiveThrottle();
} else {
this.miner.setThrottle(this.options.throttleIdle);
}
return this;
}
}
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