// Karma configuration
// Generated on Fri Aug 15 2014 23:11:13 GMT-0500 (CDT)

var webpack = require('webpack');

function createCustomLauncher(browser, version, platform) {
  return {
    base: 'SauceLabs',
    browserName: browser,
    version: version,
    platform: platform
  };
}

module.exports = function(config) {
  var customLaunchers = {};
  var browsers = [];

  if (process.env.SAUCE_USERNAME || process.env.SAUCE_ACCESS_KEY) {
    customLaunchers = {};

    var runAll = true;
    var options = [
      'SAUCE_CHROME',
      'SAUCE_FIREFOX',
      'SAUCE_SAFARI',
      'SAUCE_OPERA',
      'SAUCE_IE',
      'SAUCE_EDGE',
      'SAUCE_IOS',
      'SAUCE_ANDROID'
    ];

    options.forEach(function (opt) {
      if (process.env[opt]) {
        runAll = false;
      }
    });

    // Chrome
    if (runAll || process.env.SAUCE_CHROME) {
      customLaunchers.SL_Chrome = createCustomLauncher('chrome');
      // customLaunchers.SL_ChromeDev = createCustomLauncher('chrome', 'dev');
      // customLaunchers.SL_ChromeBeta = createCustomLauncher('chrome', 'beta');
    }

    // Firefox
    if (runAll || process.env.SAUCE_FIREFOX) {
      customLaunchers.SL_Firefox = createCustomLauncher('firefox');
      // customLaunchers.SL_FirefoxDev = createCustomLauncher('firefox', 'dev');
      // customLaunchers.SL_FirefoxBeta = createCustomLauncher('firefox', 'beta');
    }

    // Safari
    if (runAll || process.env.SAUCE_SAFARI) {
      // customLaunchers.SL_Safari7 = createCustomLauncher('safari', 7);
      // customLaunchers.SL_Safari8 = createCustomLauncher('safari', 8);

      customLaunchers.SL_Safari9 = createCustomLauncher('safari', 9);
    }

    // Opera
    if (runAll || process.env.SAUCE_OPERA) {
      // TODO The available versions of Opera are too old and lack basic APIs
      // customLaunchers.SL_Opera11 = createCustomLauncher('opera', 11, 'Windows XP');
      // customLaunchers.SL_Opera12 = createCustomLauncher('opera', 12, 'Windows 7');
    }

    // IE
    if (runAll || process.env.SAUCE_IE) {
      // customLaunchers.SL_IE8 = createCustomLauncher('internet explorer', 8, 'Windows 7');
      customLaunchers.SL_IE9 = createCustomLauncher('internet explorer', 9, 'Windows 2008');
      customLaunchers.SL_IE10 = createCustomLauncher('internet explorer', 10, 'Windows 2012');
      customLaunchers.SL_IE11 = createCustomLauncher('internet explorer', 11, 'Windows 8.1');
    }

    // Edge
    if (runAll || process.env.SAUCE_EDGE) {
      customLaunchers.SL_Edge = createCustomLauncher('microsoftedge', null, 'Windows 10');
    }

    // IOS
    if (runAll || process.env.SAUCE_IOS) {
      // TODO IOS7 capture always timesout
      // customLaunchers.SL_IOS7 = createCustomLauncher('iphone', '7.1', 'OS X 10.10');
      // TODO Mobile browsers are causing failures, possibly from too many concurrent VMs
      // customLaunchers.SL_IOS8 = createCustomLauncher('iphone', '8.4', 'OS X 10.10');
      // customLaunchers.SL_IOS9 = createCustomLauncher('iphone', '9.2', 'OS X 10.10');
    }

    // Android
    if (runAll || process.env.SAUCE_ANDROID) {
      // TODO Mobile browsers are causing failures, possibly from too many concurrent VMs
      // customLaunchers.SL_Android4 = createCustomLauncher('android', '4.4', 'Linux');
      // customLaunchers.SL_Android5 = createCustomLauncher('android', '5.1', 'Linux');
    }

    browsers = Object.keys(customLaunchers);
  } else if (process.env.TRAVIS_PULL_REQUEST && process.env.TRAVIS_PULL_REQUEST !== 'false') {
    console.log(
      'Cannot run on Sauce Labs as encrypted environment variables are not available to PRs. ' +
      'Running on Travis.'
    );
    browsers = ['Firefox'];
  } else {
    console.log('Running locally since SAUCE_USERNAME and SAUCE_ACCESS_KEY environment variables are not set.');
    browsers = ['Firefox', 'Chrome', 'Safari', 'Opera'];
  }

  config.set({
    // base path that will be used to resolve all patterns (eg. files, exclude)
    basePath: '',


    // frameworks to use
    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
    frameworks: ['jasmine-ajax', 'jasmine', 'sinon'],


    // list of files / patterns to load in the browser
    files: [
      'test/specs/__helpers.js',
      'test/specs/**/*.spec.js',
    ],


    // list of files to exclude
    exclude: [

    ],


    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {
      'test/specs/__helpers.js': ['webpack', 'sourcemap'],
      'test/specs/**/*.spec.js': ['webpack', 'sourcemap']
    },


    // test results reporter to use
    // possible values: 'dots', 'progress'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['dots', 'coverage', 'saucelabs'],


    // web server port
    port: 9876,


    // Increase timeouts to prevent the issue with disconnected tests (https://goo.gl/nstA69)
    captureTimeout: 4 * 60 * 1000,
    browserDisconnectTimeout: 10000,
    browserDisconnectTolerance: 1,
    browserNoActivityTimeout: 4 * 60 * 1000,


    // enable / disable colors in the output (reporters and logs)
    colors: true,


    // level of logging
    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
    logLevel: config.LOG_INFO,


    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: false,


    // start these browsers
    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
    browsers: browsers,


    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: false,

    // Webpack config
    webpack: {
      cache: true,
      devtool: 'inline-source-map',
      module: {
        postLoaders: [
          {
            test: /\.js$/,
            exclude: /(node_modules|test)/,
            loader: 'istanbul-instrumenter'
          }
        ]
      },
      externals: [
        {
          './adapters/http': 'var undefined'
        }
      ],
      plugins: [
        new webpack.DefinePlugin({
          'process.env.NODE_ENV': JSON.stringify('test')
        })
      ]
    },

    webpackServer: {
      stats: {
        colors: true
      }
    },


    // Coverage reporting
    coverageReporter: {
      type: 'lcov',
      dir: 'coverage/',
      subdir: '.'
    },


    // SauceLabs config
    sauceLabs: {
      recordScreenshots: false,
      connectOptions: {
        // port: 5757,
        logfile: 'sauce_connect.log'
      },
      public: 'public'
    },

    customLaunchers: customLaunchers
  });
};