import { ByteArrayInputStream } from './ByteArrayInputStream';
import { ByteArrayOutputStream } from './ByteArrayOutputStream';
import { Base64DecodeInputStream } from './Base64DecodeInputStream';
import { Base64EncodeOutputStream } from './Base64EncodeOutputStream';

'use strict';
/**
 * Base64
 * @author Kazuhiko Arase
 */
export class Base64 {

  constructor() {
    throw 'error';
  }

  public static encode(data: number[]): number[] {
    var bout = new ByteArrayOutputStream();
    try {
      var ostream = new Base64EncodeOutputStream(bout);
      try {
        ostream.writeBytes(data);
      } finally {
        ostream.close();
      }
    } finally {
      bout.close();
    }
    return bout.toByteArray();
  }

  public static decode(data: number[]): number[] {
    var bout = new ByteArrayOutputStream();
    try {
      var istream = new Base64DecodeInputStream(
        new ByteArrayInputStream(data));
      try {
        var b: number;
        while ((b = istream.readByte()) != -1) {
          bout.writeByte(b);
        }
      } finally {
        istream.close();
      }
    } finally {
      bout.close();
    }
    return bout.toByteArray();
  }
}