import { crypto, toHashString } from 'https://deno.land/std@0.176.0/crypto/mod.ts';

const getFileBuffer = (filePath: string) => {
    const file = Deno.openSync(filePath);
    const buf = new Uint8Array(file.statSync().size);
    file.readSync(buf);
    file.close();
    return buf;
};

const getBuffer = (data: BufferSource) => toHashString(crypto.subtle.digestSync('SHA-256', data));

const getFileHash = (filePath: string) => getBuffer(getFileBuffer(filePath));


export default getFileHash