import { Injectable } from "@nestjs/common";
// import crypto from "crypto"
const crypto = require("node:crypto");

@Injectable()
export class OtpService {
  createDigit(digits: number): string {
    const max = Math.pow(10, digits);
    const randomBytes = crypto.randomBytes(Math.ceil(digits / 2));
    const randomNumber = parseInt(randomBytes.toString("hex"), 16) % max;
    return randomNumber.toString().padStart(digits, "0");
  }
  create() {
    return this.createDigit(5);
  }
}