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

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

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

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

  try {
    const resp = await this.api.requestGraph(
      GetComponent,
      { ...getComponentInput, ...COMPONENT_RETRIEVAL_OPTIONS, ...options },
      'getComponent',
    );

    const { data, errors: gqlErrors } = await resp.json();
    errorsResp = mapGqlErrors(gqlErrors);
    errorsResp = errorsResp.concat(
      mapQueryErrors(data.compass, [
        'component',
        'component.relationships',
        'component.metricSources',
      ]),
    );

    if (errorsResp.length === 0) {
      component = transformGqlComponent(data.compass.component);
    }
  } catch (e) {
    if (errorsResp.length === 0) {
      errorsResp.push(parsingResponseError(e));
    }
  }

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