'use strict';

const {readdirSync, statSync} = require('fs');

const {join} = require('path');

const baseConfig = require('./config.base');

process.env.IS_BUILD = true;

const NODE_MODULES_DIR =

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

// Find all folders in packages/* with package.json

const packagesRoot = join(__dirname, '..', '..', 'packages');

const packages = readdirSync(packagesRoot).filter(dir => {

  if (dir === 'internal-test-utils') {

    // This is an internal package used only for testing. It's OK to read

    // from source.

    // TODO: Maybe let's have some convention for this?

    return false;

  }

  if (dir.charAt(0) === '.') {

    return false;

  }

  const packagePath = join(packagesRoot, dir, 'package.json');

  let stat;

  try {

    stat = statSync(packagePath);

  } catch (err) {

    return false;

  }

  return stat.isFile();

});

// Create a module map to point React packages to the build output

const moduleNameMapper = {};

// Allow bundle tests to read (but not write!) default feature flags.

// This lets us determine whether we're running in different modes

// without making relevant tests internal-only.

moduleNameMapper[

  '^shared/ReactFeatureFlags'

] = `<rootDir>/packages/shared/forks/ReactFeatureFlags.readonly`;

// Map packages to bundles

packages.forEach(name => {

  // Root entry point

  moduleNameMapper[`^${name}$`] = `<rootDir>/build/${NODE_MODULES_DIR}/${name}`;

  // Named entry points

  moduleNameMapper[

    `^${name}\/([^\/]+)$`

  ] = `<rootDir>/build/${NODE_MODULES_DIR}/${name}/$1`;

});

moduleNameMapper[

  'use-sync-external-store/shim/with-selector'

] = `<rootDir>/build/${NODE_MODULES_DIR}/use-sync-external-store/shim/with-selector`;

moduleNameMapper[

  'use-sync-external-store/shim/index.native'

] = `<rootDir>/build/${NODE_MODULES_DIR}/use-sync-external-store/shim/index.native`;

module.exports = Object.assign({}, baseConfig, {

  // Redirect imports to the compiled bundles

  moduleNameMapper,

  modulePathIgnorePatterns: [

    ...baseConfig.modulePathIgnorePatterns,

    'packages/react-devtools-extensions',

    'packages/react-devtools-shared',

  ],

  // Don't run bundle tests on -test.internal.* files

  testPathIgnorePatterns: ['/node_modules/', '-test.internal.js$'],

  // Exclude the build output from transforms

  transformIgnorePatterns: ['/node_modules/', '<rootDir>/build/'],

  setupFiles: [

    ...baseConfig.setupFiles,

    require.resolve('./setupTests.build.js'),

  ],

});