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import { useState, useEffect } from "react";
import Code from "@theme/CodeInline";
import BrowserOnly from "@docusaurus/BrowserOnly";
// https://www.xaymar.com/articles/2020/12/08/fastest-uint8array-to-hex-string-conversion-in-javascript/
function toHex(buffer) {
return Array.prototype.map
.call(buffer, (x) => ("00" + x.toString(16)).slice(-2))
.join("");
}
export const genRandomKey = (): String => {
const array = new Uint8Array(32);
self.crypto.getRandomValues(array);
return toHex(array);
};
export default function RandomKey() {
return (
<BrowserOnly fallback={<div>Loading...</div>}>
{() => {
const [key, setKey] = useState<String>(genRandomKey());
const [refresh, setRefresh] = useState<number>(0);
useEffect(() => {
setKey(genRandomKey());
}, [refresh]);
return (
<span>
<Code>{key}</Code>
<span style={{ marginLeft: "0.25rem", marginRight: "0.25rem" }} />
<button
onClick={() => {
setRefresh((n) => n + 1);
}}
>
♻️
</button>
</span>
);
}}
</BrowserOnly>
);
}
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