'use strict';

const semver = require('semver');

const NODE_MODULES_DIR =

  process.env.RELEASE_CHANNEL === 'stable' ? 'oss-stable' : 'oss-experimental';

const REACT_VERSION = process.env.REACT_VERSION;

const moduleNameMapper = {};

const setupFiles = [];

// We only want to add these if we are in a regression test, IE if there

// is a REACT_VERSION specified

if (REACT_VERSION) {

  // React version 16.5 has a schedule package instead of a scheduler

  // package, so we need to rename them accordingly

  if (semver.satisfies(REACT_VERSION, '16.5')) {

    moduleNameMapper[

      `^schedule$`

    ] = `<rootDir>/build/${NODE_MODULES_DIR}/schedule`;

    moduleNameMapper[

      '^schedule/tracing$'

    ] = `<rootDir>/build/${NODE_MODULES_DIR}/schedule/tracing-profiling`;

  }

  // react-dom/client is only in v18.0.0 and up, so we

  // map it to react-dom instead

  if (semver.satisfies(REACT_VERSION, '<18.0')) {

    moduleNameMapper[

      '^react-dom/client$'

    ] = `<rootDir>/build/${NODE_MODULES_DIR}/react-dom`;

  }

  setupFiles.push(require.resolve('./setupTests.build-devtools-regression'));

}

module.exports = {

  moduleNameMapper,

  setupFiles,

};