import { Injectable } from '@nestjs/common';
import { request, gql } from 'graphql-request';

import { AccountInfo } from '../types/everscale.types';
import { InitEverscaleClientParams } from './everscale-client.base.service';

@Injectable()
export class EverscaleAccountInfoService {
  EVERSCALE_API_URL: string | undefined;

  init({ everscaleClientConfig }: InitEverscaleClientParams) {
    if (!everscaleClientConfig?.everscaleApiUrl) {
      throw new Error(`Everscale client configuration is invalid!`);
    }

    this.EVERSCALE_API_URL = everscaleClientConfig.everscaleApiUrl;
  }

  public async getAccountInfo(address: string): Promise<AccountInfo> {
    const query = gql`
      query {
        blockchain {
          account(address: "${address}") {
            info {
              address
              acc_type
              balance
              last_paid
              last_trans_lt
              boc
              data
              code
              library
              data_hash
              code_hash
              library_hash
            }
          }
        }
      }
    `;
    const res = await request<{ blockchain: { account: { info: AccountInfo } } }>({
      url: this.EVERSCALE_API_URL!,
      document: query,
    });
    return res.blockchain.account.info;
  }
}