// Copyright (c) 2023 Vaughn Nugent
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


export const LongToArray = function (long : number) {
  // Empty array
  const byteArray = Array(8).fill(0)
  for (let index = 0; index < 8; index++) {
    const byte = long & 0xff
    byteArray[index] = byte
    long = (long - byte) / 256
  }
  return byteArray
}

export const IntToArray = function(int : number) {
  // Empty array
  const byteArray = Array(4).fill(0)
  for (let index = 0; index < 4; index++) {
    const byte = int & 0xff
    byteArray[index] = byte
    int = (int - byte) / 256
  }
  return byteArray
}

export const Base64ToArray = function (b64string : string) : Array<number> {
  // Recover the encoded data
  const decData = atob(b64string)
  // Convert to array
  return Array.from(decData, c => c.charCodeAt(0))
}

export const Base64ToUint8Array = function (b64string : string) : Uint8Array {
  // Recover the encoded data
  const decData = atob(b64string)
  // Convert to array
  return Uint8Array.from(decData, c => c.charCodeAt(0))
}

export const Utf8StringToBuffer = function (str : string) : Array<number> {
  // encode the string to utf8 binary
  const enc = new TextEncoder().encode(str)
  return Array.from(enc);
}

export const ArrayBuffToBase64 = function(e : ArrayBuffer) : string {
  const arr = Array.from(new Uint8Array(e))
  return btoa(String.fromCharCode.apply(null, arr))
}

export const ArrayToHexString = function(buffer : Array<number> | ArrayBuffer) : string {
  return Array.prototype.map.call(buffer, function (byte : number) {
    return ('0' + (byte & 0xFF).toString(16)).slice(-2)
  }).join('')
}