import {Injectable} from '@angular/core';
import {Converter} from './converter/converter';
import {Base64Encoder} from './converter/base64encoder';
import {Base64Decoder} from './converter/base64decoder';
import {URIEncoder} from './converter/uriencoder';
import {URIDecoder} from './converter/uridecoder';
import {URIComponentEncoder} from './converter/uricomponentencoder';
import {URIComponentDecoder} from './converter/uricomponentdecoder';
import {HTMLEntitiesEncoder} from './converter/htmlentitiesencoder';
import {HTMLEntitiesDecoder} from './converter/htmlentitiesdecoder';
import {DecToHexConverter} from './converter/dectohexconverter';
import {HexToDecConverter} from './converter/hextodecconverter';
import {DecToBinConverter} from './converter/dectobinconverter';
import {BinToDecConverter} from './converter/bintodecconverter';
import {QuotedPrintableDecoder} from './converter/quotedprintabledecoder';
import {QuotedPrintableEncoder} from './converter/quotedprintableencoder';
import {NativeLibraryWrapperService} from './nativelibrarywrapper.service';
import {PunycodeEncoder} from './converter/punycodeencoder';
import {PunycodeDecoder} from './converter/punycodedecoder';
import {UTF8Encoder} from './converter/utf8encoder';
import {UTF8Decoder} from './converter/utf8decoder';
import {ROT13Converter} from './converter/rot13converter';

@Injectable()
export class ConverterRegistryService {
  private converters: Converter[] = [];

  constructor(private wrapper: NativeLibraryWrapperService) {
    this.init();
  }

  public getAllConverters(): Converter[] {
    return this.converters;
  }

  public getConverter(id: string): Converter {
    for (let i = 0; i < this.converters.length; i++) {
      if (this.converters[i].getId() === id) {
        return this.converters[i];
      }
    }
    return undefined;
  }

  private init(): void {
    this.registerConverter(new Base64Encoder());
    this.registerConverter(new Base64Decoder());
    this.registerConverter(new URIEncoder());
    this.registerConverter(new URIDecoder());
    this.registerConverter(new URIComponentEncoder());
    this.registerConverter(new URIComponentDecoder());
    this.registerConverter(new HTMLEntitiesEncoder());
    this.registerConverter(new HTMLEntitiesDecoder());
    this.registerConverter(new QuotedPrintableEncoder(this.wrapper));
    this.registerConverter(new QuotedPrintableDecoder(this.wrapper));
    this.registerConverter(new DecToHexConverter());
    this.registerConverter(new HexToDecConverter());
    this.registerConverter(new DecToBinConverter());
    this.registerConverter(new BinToDecConverter());
    this.registerConverter(new PunycodeEncoder(this.wrapper));
    this.registerConverter(new PunycodeDecoder(this.wrapper));
    this.registerConverter(new UTF8Encoder(this.wrapper));
    this.registerConverter(new UTF8Decoder(this.wrapper));
    this.registerConverter(new ROT13Converter());
  }

  private registerConverter(converter: Converter): void {
    this.converters.forEach((c: Converter) => {
      if (c.getId() === converter.getId()) {
        throw new Error('Converter-ID ' + converter.getId() + ' is already registered!');
      }
    });
    this.converters.push(converter);
  }
}