import convertToHomographSafeChars from '../../../../../utils/convertToHomographSafeChars';
import { Platform } from '../../Platform';

/**
 * This method will allow you to resolve a DPNS record from its humanized name.
 * @param {string} name - the exact alphanumeric (2-63) value used for human-identification
 * @returns {ExtendedDocument} document
 */
export async function resolve(this: Platform, name: string): Promise<any> {
  await this.initialize();

  // setting up variables in case of TLD registration
  let normalizedLabel = name.toLowerCase();
  let normalizedParentDomainName = '';

  // in case of subdomain registration
  // we should split label and parent domain name
  if (name.includes('.')) {
    const normalizedSegments = convertToHomographSafeChars(name).split('.');

    [normalizedLabel] = normalizedSegments;
    normalizedParentDomainName = normalizedSegments.slice(1).join('.');
  }

  const [document] = await this.documents.get('dpns.domain', {
    where: [
      ['normalizedParentDomainName', '==', normalizedParentDomainName],
      ['normalizedLabel', '==', normalizedLabel],
    ],
  });

  return document === undefined ? null : document;
}

export default resolve;