import fs from "fs";
import crypto from "crypto";

export const hashStream = (filepath: string) => {
  return new Promise<string>((resolve, reject) => {
    const hash = crypto.createHash("sha256");
    const stream = fs.createReadStream(filepath);
    stream.on("data", (data) => hash.update(data));
    stream.on("end", () => resolve(hash.digest("hex")));
    stream.on("error", (err) => reject(err));
  });
};