index.js

import { makeFetchJSON } from './utils/index.js';
import * as optionsUtil from './utils/options.js';
import genericStrategy from './strategies/generic/index.js';
import openApi2Strategy from './strategies/openapi-2/index.js';
import openApi30Strategy from './strategies/openapi-3-0/index.js';

const resolve = async (options) => {
  const { spec, requestInterceptor, responseInterceptor } = options;

  const retrievalURI = optionsUtil.retrievalURI(options);
  const httpClient = optionsUtil.httpClient(options);
  const retrievedSpec =
    spec ||
    (await makeFetchJSON(httpClient, { requestInterceptor, responseInterceptor })(retrievalURI));
  const strategyOptions = { ...options, spec: retrievedSpec };
  const strategy = options.strategies.find((strg) => strg.match(retrievedSpec));

  return strategy.resolve(strategyOptions);
};

export const makeResolve = (defaultOptions) => async (options) => {
  const mergedOptions = { ...defaultOptions, ...options };
  return resolve(mergedOptions);
};

export default makeResolve({
  strategies: [openApi30Strategy, openApi2Strategy, genericStrategy],
});