import { Injectable } from '@angular/core';
import { environment } from '@src/environments/environment';
import { CICRegistry, FileGetter } from '@cicnet/cic-client';
import { TokenRegistry } from '@app/_eth';
import { HttpGetter } from '@app/_helpers';
import { Web3Service } from '@app/_services/web3.service';

// export interface RegistryCollection {
//    cicRegistry: CICRegistry;
//    tokenRegistry: TokenRegistry;
// }

@Injectable({
  providedIn: 'root',
})
export class RegistryService {
  static fileGetter: FileGetter = new HttpGetter();
  private static registry: CICRegistry;
  private static tokenRegistry: TokenRegistry;
  // private static registries: RegistryCollection;

  public static async getRegistry(): Promise<CICRegistry> {
    if (!RegistryService.registry) {
      RegistryService.registry = new CICRegistry(
        Web3Service.getInstance(),
        environment.registryAddress,
        'Registry',
        RegistryService.fileGetter,
        ['../../assets/js/block-sync/data']
      );
      RegistryService.registry.declaratorHelper.addTrust(environment.trustedDeclaratorAddress);
      await RegistryService.registry.load();
    }
    return RegistryService.registry;
  }

  public static async getTokenRegistry(): Promise<TokenRegistry> {
    if (!RegistryService.tokenRegistry) {
      // then initial it
      const registry = await RegistryService.getRegistry();
      const tokenRegistryAddress = await RegistryService.registry.getContractAddressByName(
        'TokenRegistry'
      );
      RegistryService.tokenRegistry = new TokenRegistry(tokenRegistryAddress);
      return new Promise((resolve, reject) => {
        resolve(RegistryService.tokenRegistry);
      });
    }
    return new Promise((resolve, reject) => {
      resolve(RegistryService.tokenRegistry);
    });
  }
}