/// <reference path="../../compass-requests.ts"/>

import {
  ApiPayload,
  Component,
  ComponentByExternalAlias,
  ComponentPayload,
  GetComponentByExternalAliasInput,
  SdkError,
} from '@atlassian/forge-graphql-types';
import { CompassRequests } from '../../compass-requests';
import {
  mapGqlErrors,
  mapQueryErrors,
  parsingResponseError,
  transformGqlComponent,
} from '../../helpers';

import { COMPONENT_BY_EXTERNAL_ALIAS_RETRIEVAL_OPTIONS } from '../../helpers/constants';

declare module '../../compass-requests' {
  interface CompassRequests {
    /**
     * Retrieves a single component by its external alias.
     *
     * **Required Oauth Scopes:** `read:component:compass`
     */
    getComponentByExternalAlias(
      input: GetComponentByExternalAliasInput,
    ): Promise<ApiPayload<ComponentPayload>>;
  }
}

CompassRequests.prototype.getComponentByExternalAlias =
  async function getComponentByExternalAlias(
    this: CompassRequests,
    { options, ...getComponentInput },
  ) {
    let component = null as Component;
    let errorsResp = [] as SdkError[];

    try {
      const resp = await this.api.requestGraph(
        ComponentByExternalAlias,
        {
          ...getComponentInput,
          ...COMPONENT_BY_EXTERNAL_ALIAS_RETRIEVAL_OPTIONS,
          ...options,
        },
        'getComponentByExternalAlias',
      );

      const { data, errors: gqlErrors } = await resp.json();
      errorsResp = mapGqlErrors(gqlErrors);
      errorsResp = errorsResp.concat(
        mapQueryErrors(data.compass, [
          'componentByExternalAlias',
          'componentByExternalAlias.relationships',
          'componentByExternalAlias.metricSources',
        ]),
      );
      if (errorsResp.length === 0) {
        component = transformGqlComponent(
          data.compass.componentByExternalAlias,
        );
      }
    } catch (e) {
      if (errorsResp.length === 0) {
        errorsResp.push(parsingResponseError(e));
      }
    }

    return {
      errors: errorsResp,
      success: errorsResp.length === 0,
      data: { component },
    };
  };