import {toHex} from '../misc';
import {AbstractParser} from './AbstractParser';
import {NTLMType1Parser} from './NTLMType1Parser';
import {NTLMType2Parser} from './NTLMType2Parser';
import {NTLMType3Parser} from './NTLMType3Parser';

export class ParserFactory {
  static instantiateFromContent(buffer: ArrayBuffer) {
    const str = toHex(buffer);
    const prefix = str.substring(0, 24);
    if (prefix === '4e544c4d5353500001000000') {
      return new NTLMType1Parser(buffer);
    }
    if (prefix === '4e544c4d5353500002000000') {
      return new NTLMType2Parser(buffer);
    }
    if (prefix === '4e544c4d5353500003000000') {
      return new NTLMType3Parser(buffer);
    }
    return new AbstractParser(buffer);
  }
}