text: "use strict";
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */
  // tslint:disable
  // TODO: cleanup this file, it's copied as is from Angular CLI.
  Object.defineProperty(exports, "__esModule", { value: true });
  const path = require("path");
  const glob = require("glob");
  const webpack = require("webpack");
  const webpackDevMiddleware = require('webpack-dev-middleware');
  const karma_webpack_failure_cb_1 = require("./karma-webpack-failure-cb");
  const stats_1 = require("../utils/stats");
  const stats_2 = require("../configs/stats");
  const node_1 = require("@angular-devkit/core/node");
  const index_1 = require("../../utils/index");
  /**
   * Enumerate needed (but not require/imported) dependencies from this file
   *  to let the dependency validator know they are used.
   *
   * require('source-map-support')
   * require('karma-source-map-support')
   */
  let blocked = [];
  let isBlocked = false;
  let webpackMiddleware;
  let successCb;
  let failureCb;
  // Add files to the Karma files array.
  function addKarmaFiles(files, newFiles, prepend = false) {
      const defaults = {
          included: true,
          served: true,
          watched: true
      };
      const processedFiles = newFiles
          // Remove globs that do not match any files, otherwise Karma will show a warning for these.
          .filter(file => glob.sync(file.pattern, { nodir: true }).length != 0)
          // Fill in pattern properties with defaults.
          .map(file => ({ ...defaults, ...file }));
      // It's important to not replace the array, because
      // karma already has a reference to the existing array.
      if (prepend) {
          files.unshift(...processedFiles);
      }
      else {
          files.push(...processedFiles);
      }
  }
  const init = (config, emitter, customFileHandlers) => {
      if (!config.buildWebpack) {
          throw new Error(`The '@angular-devkit/build-angular/plugins/karma' karma plugin is meant to` +
              ` be used from within Angular CLI and will not work correctly outside of it.`);
      }
      const options = config.buildWebpack.options;
      const logger = config.buildWebpack.logger || node_1.createConsoleLogger();
      successCb = config.buildWebpack.successCb;
      failureCb = config.buildWebpack.failureCb;
      // Add a reporter that fixes sourcemap urls.
      if (index_1.normalizeSourceMaps(options.sourceMap).scripts) {
          config.reporters.unshift('@angular-devkit/build-angular--sourcemap-reporter');
          // Code taken from https://github.com/tschaub/karma-source-map-support.
          // We can't use it directly because we need to add it conditionally in this file, and karma
          // frameworks cannot be added dynamically.
          const smsPath = path.dirname(require.resolve('source-map-support'));
          const ksmsPath = path.dirname(require.resolve('karma-source-map-support'));
          addKarmaFiles(config.files, [
              { pattern: path.join(smsPath, 'browser-source-map-support.js'), watched: false },
              { pattern: path.join(ksmsPath, 'client.js'), watched: false }
          ], true);
      }
      config.reporters.unshift('@angular-devkit/build-angular--event-reporter');
      // When using code-coverage, auto-add karma-coverage.
      if (options.codeCoverage) {
          config.plugins = config.plugins || [];
          config.reporters = config.reporters || [];
          const { plugins, reporters } = config;
          const hasCoveragePlugin = plugins.some((p) => 'reporter:coverage' in p);
          const hasIstanbulPlugin = plugins.some((p) => 'reporter:coverage-istanbul' in p);
          const hasCoverageReporter = reporters.includes('coverage');
          const hasIstanbulReporter = reporters.includes('coverage-istanbul');
          if (hasCoveragePlugin && !hasCoverageReporter) {
              reporters.push('coverage');
              logger.warn(`There is a known issue with Karma and karma-coverage. Tests that exceed the coverage threshold will not fail. This will be fixed in Karma 5.2.x soon.`);
          }
          else if (hasIstanbulPlugin && !hasIstanbulReporter) {
              // coverage-istanbul is deprecated in favor of karma-coverage
              reporters.push('coverage-istanbul');
          }
          else if (!hasCoveragePlugin && !hasIstanbulPlugin) {
              throw new Error('karma-coverage must be installed in order to run code coverage.');
          }
          if (hasIstanbulPlugin) {
              logger.warn(`'karma-coverage-istanbul-reporter' usage has been deprecated since version 11.\n` +
                  `Please install 'karma-coverage' and update 'karma.conf.js.' ` +
                  'For more info, see https://github.com/karma-runner/karma-coverage/blob/master/README.md');
          }
      }
      // Add webpack config.
      const webpackConfig = config.buildWebpack.webpackConfig;
      const webpackMiddlewareConfig = {
          // Hide webpack output because its noisy.
          logLevel: 'error',
          stats: false,
          publicPath: '/_karma_webpack_/',
      };
      const compilationErrorCb = (error, errors) => {
          // Notify potential listeners of the compile error
          emitter.emit('compile_error', errors);
          // Finish Karma run early in case of compilation error.
          emitter.emit('run_complete', [], { exitCode: 1 });
          // Unblock any karma requests (potentially started using `karma run`)
          unblock();
      };
      webpackConfig.plugins.push(new karma_webpack_failure_cb_1.KarmaWebpackFailureCb(compilationErrorCb));
      // Use existing config if any.
      config.webpack = Object.assign(webpackConfig, config.webpack);
      config.webpackMiddleware = Object.assign(webpackMiddlewareConfig, config.webpackMiddleware);
      // Our custom context and debug files list the webpack bundles directly instead of using
      // the karma files array.
      config.customContextFile = `${__dirname}/karma-context.html`;
      config.customDebugFile = `${__dirname}/karma-debug.html`;
      // Add the request blocker and the webpack server fallback.
      config.beforeMiddleware = config.beforeMiddleware || [];
      config.beforeMiddleware.push('@angular-devkit/build-angular--blocker');
      config.middleware = config.middleware || [];
      config.middleware.push('@angular-devkit/build-angular--fallback');
      // The webpack tier owns the watch behavior so we want to force it in the config.
      webpackConfig.watch = !config.singleRun;
      if (config.singleRun) {
          // There's no option to turn off file watching in webpack-dev-server, but
          // we can override the file watcher instead.
          webpackConfig.plugins.unshift({
              apply: (compiler) => {
                  compiler.hooks.afterEnvironment.tap('karma', () => {
                      compiler.watchFileSystem = { watch: () => { } };
                  });
              },
          });
      }
      // Files need to be served from a custom path for Karma.
      webpackConfig.output.path = '/_karma_webpack_/';
      webpackConfig.output.publicPath = '/_karma_webpack_/';
      let compiler;
      try {
          compiler = webpack(webpackConfig);
      }
      catch (e) {
          logger.error(e.stack || e);
          if (e.details) {
              logger.error(e.details);
          }
          throw e;
      }
      function handler(callback) {
          isBlocked = true;
          if (typeof callback === 'function') {
              callback();
          }
      }
      compiler.hooks.invalid.tap('karma', () => handler());
      compiler.hooks.watchRun.tapAsync('karma', (_, callback) => handler(callback));
      compiler.hooks.run.tapAsync('karma', (_, callback) => handler(callback));
      function unblock() {
          isBlocked = false;
          blocked.forEach((cb) => cb());
          blocked = [];
      }
      let lastCompilationHash;
      const statsConfig = stats_2.getWebpackStatsConfig();
      compiler.hooks.done.tap('karma', (stats) => {
          if (stats.compilation.errors.length > 0) {
              const json = stats.toJson(config.stats);
              // Print compilation errors.
              logger.error(stats_1.statsErrorsToString(json, statsConfig));
              lastCompilationHash = undefined;
              // Emit a failure build event if there are compilation errors.
              failureCb();
          }
          else if (stats.hash != lastCompilationHash) {
              // Refresh karma only when there are no webpack errors, and if the compilation changed.
              lastCompilationHash = stats.hash;
              emitter.refreshFiles();
          }
          unblock();
      });
      webpackMiddleware = new webpackDevMiddleware(compiler, webpackMiddlewareConfig);
      // Forward requests to webpack server.
      customFileHandlers.push({
          urlRegex: /^\/_karma_webpack_\/.*/,
          handler: function handler(req, res) {
              webpackMiddleware(req, res, function () {
                  // Ensure script and style bundles are served.
                  // They are mentioned in the custom karma context page and we don't want them to 404.
                  const alwaysServe = [
                      '/_karma_webpack_/runtime.js',
                      '/_karma_webpack_/polyfills.js',
                      '/_karma_webpack_/polyfills-es5.js',
                      '/_karma_webpack_/scripts.js',
                      '/_karma_webpack_/styles.js',
                      '/_karma_webpack_/vendor.js',
                  ];
                  if (alwaysServe.indexOf(req.url) != -1) {
                      res.statusCode = 200;
                      res.end();
                  }
                  else {
                      res.statusCode = 404;
                      res.end('Not found');
                  }
              });
          }
      });
      emitter.on('exit', (done) => {
          webpackMiddleware.close();
          done();
      });
  };
  init.$inject = ['config', 'emitter', 'customFileHandlers'];
  // Block requests until the Webpack compilation is done.
  function requestBlocker() {
      return function (_request, _response, next) {
          if (isBlocked) {
              blocked.push(next);
          }
          else {
              next();
          }
      };
  }
  // Copied from "karma-jasmine-diff-reporter" source code:
  // In case, when multiple reporters are used in conjunction
  // with initSourcemapReporter, they both will show repetitive log
  // messages when displaying everything that supposed to write to terminal.
  // So just suppress any logs from initSourcemapReporter by doing nothing on
  // browser log, because it is an utility reporter,
  // unless it's alone in the "reporters" option and base reporter is used.
  function muteDuplicateReporterLogging(context, config) {
      context.writeCommonMsg = function () { };
      const reporterName = '@angular/cli';
      const hasTrailingReporters = config.reporters.slice(-1).pop() !== reporterName;
      if (hasTrailingReporters) {
          context.writeCommonMsg = function () { };
      }
  }
  // Emits builder events.
  const eventReporter = function (baseReporterDecorator, config) {
      baseReporterDecorator(this);
      muteDuplicateReporterLogging(this, config);
      this.onRunComplete = function (_browsers, results) {
          if (results.exitCode === 0) {
              successCb();
          }
          else {
              failureCb();
          }
      };
      // avoid duplicate failure message
      this.specFailure = () => { };
  };
  eventReporter.$inject = ['baseReporterDecorator', 'config'];
  // Strip the server address and webpack scheme (webpack://) from error log.
  const sourceMapReporter = function (baseReporterDecorator, config) {
      baseReporterDecorator(this);
      muteDuplicateReporterLogging(this, config);
      const urlRegexp = /http:\/\/localhost:\d+\/_karma_webpack_\/(webpack:\/)?/gi;
      this.onSpecComplete = function (_browser, result) {
          if (!result.success) {
              result.log = result.log.map((l) => l.replace(urlRegexp, ''));
          }
      };
      // avoid duplicate complete message
      this.onRunComplete = () => { };
      // avoid duplicate failure message
      this.specFailure = () => { };
  };
  sourceMapReporter.$inject = ['baseReporterDecorator', 'config'];
  // When a request is not found in the karma server, try looking for it from the webpack server root.
  function fallbackMiddleware() {
      return function (req, res, next) {
          if (webpackMiddleware) {
              const webpackUrl = '/_karma_webpack_' + req.url;
              const webpackReq = { ...req, url: webpackUrl };
              webpackMiddleware(webpackReq, res, next);
          }
          else {
              next();
          }
      };
  }
  module.exports = {
      'framework:@angular-devkit/build-angular': ['factory', init],
      'reporter:@angular-devkit/build-angular--sourcemap-reporter': ['type', sourceMapReporter],
      'reporter:@angular-devkit/build-angular--event-reporter': ['type', eventReporter],
      'middleware:@angular-devkit/build-angular--blocker': ['factory', requestBlocker],
      'middleware:@angular-devkit/build-angular--fallback': ['factory', fallbackMiddleware]
  };
  