@applitools/eyes-storybook/src/renderStory.js

'use strict';
const throat = require('throat');
const {storyToCheckSettings, storyToOpenSettings} = require('./transformSettings');

function makeRenderStory({
  logger,
  openEyes,
  performance,
  timeItAsync,
  storyDataGap,
  appName,
  serverSettings,
}) {
  const throttle = throat(storyDataGap);
  return function renderStory({story, snapshots, url}) {
    const baselineName = story.baselineName;
    const title = story.storyTitle;

    logger.log(`running story ${title} with baseline ${baselineName}`);

    const openParams = storyToOpenSettings({story, appName, serverSettings});
    const checkParams = storyToCheckSettings({story, url});

    return timeItAsync(baselineName, async () => {
      const eyes = await openEyes({settings: openParams});
      return new Promise((resolve, reject) => {
        throttle(async () => {
          try {
            if (snapshots) {
              await eyes.checkAndClose({
                target: snapshots,
                settings: checkParams,
              });
              const results = await eyes.getResults();
              resolve(results);
            } else {
              await eyes.abort({settings: {environments: checkParams.environments}});
              reject(
                new Error(`Failed to get story data for ${openParams.testName}, test was aborted`),
              );
            }
          } catch (err) {
            reject(err);
          }
        });
      });
    }).then(onDoneStory);

    function onDoneStory(results) {
      logger.log('finished story', baselineName, 'in', performance[baselineName]);
      return results;
    }
  };
}

module.exports = makeRenderStory;