var GRID_URL = 'http://localhost:4444/wd/hub';
var GRID_URL_SAUCELABS = 'http://obfuscated-credentials@ondemand.saucelabs.com:80/wd/hub';
var GRID_URL_BROWSERSTACK = 'http://obfuscated-credentials@hub.browserstack.com/wd/hub';

var domains = {
  local: 'obfuscated-url',
  dev: 'obfuscated-url',
  prod: 'obfuscated-url'
};

var browsers = {
  local: {
    chrome: {
      grid: null,
      name: 'chrome',
      key: 'localChrome',
      browserTitle: 'Chrome (Local)'
    },
    firefox: {
      grid: null,
      name: 'firefox',
      key: 'localFirefox',
      browserTitle: 'Firefox (Local)'
    },
    ie: {
      grid: null,
      name: 'ie',
      key: 'localIE',
      browserTitle: 'IE (Local)'
    }
  },
  vm: {
    ie8: {
      grid: {
        url: GRID_URL,
        platform: 'VISTA',
        browser: 'internet explorer'
      },
      key: 'vmIE8',
      browserTitle: 'IE8 / Windows 7 (Local VM)'
    },
  },
  sauceLabs: {
    ie11: {
      grid: {
        url: GRID_URL_SAUCELABS,
        browser: 'internet explorer',
        desiredCapabilities: {
          platform: 'Windows 8.1',
          version: '11'
        }
      },
      key: 'sauceLabsWin8IE11',
      browserTitle: 'IE11 / Win8 (SauceLabs)'
    },
    chrome: {
      grid: {
        url: GRID_URL_SAUCELABS,
        browser: 'chrome',
        desiredCapabilities: {
          platform: 'Windows 8.1',
          version: '38'
        }
      },
      key: 'sauceLabsWin8Chrome',
      browserTitle: 'Chrome 38 / Win8 (SauceLabs)'
    },
    ios7: {
      noResize: true,
      grid: {
        url: GRID_URL_SAUCELABS,
        browser: 'iphone',
        desiredCapabilities: {
          platform: 'OS X 10.9',
          version: '7.1'
        }
      },
      key: 'sauceLabsIOS7Safari',
      browserTitle: 'Safari 7.1 / iOS 7 (SauceLabs)'
    }
  },
  browserStack: {
    ie11: {
      grid: {
        url: GRID_URL_BROWSERSTACK,
        desiredCapabilities: {
          os: 'Windows',
          os_version: '8.1',
          browser: 'IE',
          browser_version: '11',
          'browserstack.local': 'true'
        }
      },
      key: 'browserStackWin8IE11',
      browserTitle: 'IE11 / Win8 (BrowserStack)'
    },
    chrome: {
      grid: {
        url: GRID_URL_BROWSERSTACK,
        desiredCapabilities: {
          os: 'Windows',
          os_version: '8.1',
          browser: 'chrome',
          browser_version: '36',
          'browserstack.local': 'true'
        }
      },
      key: 'browserStackWin8Chrome',
      browserTitle: 'Chrome 38 / Win8 (BrowserStack)'
    },
    iphone5s: {
      noResize: true,
      grid: {
        url: GRID_URL_BROWSERSTACK,
        desiredCapabilities: {
          device: 'iPhone 5S',
          'browserstack.local': 'true'
        }
      },
      key: 'browserStackIphone5s',
      browserTitle: 'iPhone 5s / Safari 7 (BrowserStack)'
    }
  }
};

var layouts = {
  mobile: {
    layoutName: 'Mobile',
    size: '320x600',
    tags: ['mobile'],
    key: 'layoutsMobile'
  },
  tablet: {
    layoutName: 'Tablet',
    size: '768x800',
    tags: ['tablet'],
    key: 'layoutsTablet'
  },
  desktop: {
    layoutName: 'Desktop',
    size: '1200x800',
    tags: ['desktop'],
    key: 'layoutsDesktop'
  }
};

var users = {
  local: {
    username: 'obfuscated',
    password: 'obfuscated'
  },
  engprod: {
    username: 'obfuscated',
    password: 'obfuscated'
  }
};

function openDriver(size, browser) {
  var driver;
  var gridUrl;
  // don't attempt to resize browsers that aren't resizeable,
  // namely for mobile devices where browsers aren't windowed
  if (browser.noResize) {
    size = null;
  }
  if (browser.grid) {
    // for drivers that utilize the Selenium Grid
    if (browser.grid.hasOwnProperty('url')) {
      gridUrl = browser.grid.url;
    }
    else {
      gridUrl = GRID_URL;
    }
    browser.grid.size = size;
    driver = createGridDriver(gridUrl, browser.grid, size);
  }
  else {
    // for drivers that utilize a local browser
    driver = createDriver(null, size, browser.name);
  }
  session.put('driver', driver);

  return driver;
}

afterTest(function(test) {
  var driver = session.get('driver');
  if (driver != null) {
    if (test.isFailed()) {
      session.report().info('Screenshot').withAttachment('Screenshot', takeScreenshot(driver));
    }
    console.log('about to quit');
    // close the browser instance at test completion
    // driver.quit();
  }
});

function _test(testNamePrefix, callback) {
  test(testNamePrefix + ' - ${browserTitle} - ${layoutName}', function (browser, layout) {
    console.log('running _test');
    var size;
    if (layout) {
      size = layout.size;
    }
    var driver = openDriver(size, browser);
    callback.call(this, driver, layout);
  });
}

function runTest(testNamePrefix, browserSelection, layoutSelection, callback) {
  var browserSelectionPrepped = {};
  var layoutSelectionPrepped = {};

  var isNonEmptyObjectLiteral = function(arg) {
    if (Object.prototype.toString.call(arg) === '[object Object]') {
      return Object.keys(arg).length !== 0 ? true : false;
    }
    return false;
  };

  var isTarget = function(obj, propertyToCheckFor) {
    return isNonEmptyObjectLiteral(obj, propertyToCheckFor) && obj[propertyToCheckFor] ? true : false;
  };

  var addIfTarget = function(selection, dest, propertyToCheckFor) {
    if (isTarget(selection, propertyToCheckFor)) {
      dest[selection.key] = selection;
    }
    else if (isNonEmptyObjectLiteral(selection)) {
      getNestedSelections(selection, dest, propertyToCheckFor);
    }
  };

  var getNestedSelections = function(selection, dest, propertyToCheckFor) {
    for(var prop in selection) {
      addIfTarget(selection[prop], dest, propertyToCheckFor);
    }
  };

  var prepSelection = function(selection, dest, propertyToCheckFor) {
    if (Array.isArray(selection)) {
      for (var i = 0; i < selection.length; i++) {
        addIfTarget(selection[i], dest, propertyToCheckFor);
      }
    }
    else {
      addIfTarget(selection, dest, propertyToCheckFor);
    }
  };

  prepSelection(browserSelection, browserSelectionPrepped, 'browserTitle');
  prepSelection(layoutSelection, layoutSelectionPrepped, 'layoutName');

  forAll(browserSelectionPrepped, function() {
    forAll(layoutSelectionPrepped, function() {
      _test(testNamePrefix, callback);
    });
  });

}

// Exporting functions to all other tests that will use this script

(function (export) {
  export.domains = domains;
  export.browsers = browsers;
  export.layouts = layouts;
  export.openDriver = openDriver;
  export.runTest = runTest;
  export.users = users;
})(this);