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import { encoder, decoder } from '../lib/buffer_utils.ts'
export const encodeBase64 = (input: Uint8Array | string) => {  let unencoded = input  if (typeof unencoded === 'string') {    unencoded = encoder.encode(unencoded)  }  const CHUNK_SIZE = 0x8000  const arr = []  for (let i = 0; i < unencoded.length; i += CHUNK_SIZE) {    // @ts-expect-error    arr.push(String.fromCharCode.apply(null, unencoded.subarray(i, i + CHUNK_SIZE)))  }  return btoa(arr.join(''))}
export const encode = (input: Uint8Array | string) => {  return encodeBase64(input).replace(/=/g, '').replace(/\+/g, '-').replace(/\//g, '_')}
export const decodeBase64 = (encoded: string): Uint8Array => {  const binary = atob(encoded)  const bytes = new Uint8Array(binary.length)  for (let i = 0; i < binary.length; i++) {    bytes[i] = binary.charCodeAt(i)  }  return bytes}
export const decode = (input: Uint8Array | string) => {  let encoded = input  if (encoded instanceof Uint8Array) {    encoded = decoder.decode(encoded)  }  encoded = encoded.replace(/-/g, '+').replace(/_/g, '/').replace(/\s/g, '')  try {    return decodeBase64(encoded)  } catch {    throw new TypeError('The input to be decoded is not correctly encoded.')  }}