module.exports = {
  url: 'http://example.com/',
   // other configuration options. Read _All available configuration options_
}

const METRICS = require('pwmetrics/lib/metrics');

module.exports = {
  url: 'http://example.com/',
  flags: { // AKA feature flags
    runs: 3, // number or runs
    submit: true, // turn on submitting to Google Sheets
    upload: true, // turn on uploading to Google Drive
    view: true, // open uploaded traces to Google Drive in DevTools
    expectations: true, // turn on assertion metrics results against provides values
    json: true, // not required, set to true if you want json output
    outputPath: 'stdout', // not required, only needed if you have specified json output, can be "stdout" or a path
    chromePath: '/Applications/Google\ Chrome\ Canary.app/Contents/MacOS/Google\ Chrome\ Canary', //optional path to specific Chrome location
    chromeFlags: '', // custom flags to pass to Chrome. For a full list of flags, see http://peter.sh/experiments/chromium-command-line-switches/.
    // Note: pwmetrics supports all flags from Lighthouse
    showOutput: true, // not required, set to false for pwmetrics not output any console.log messages
    failOnError: false // not required, set to true if you want to fail the process on expectations errors
  },
  expectations: {
    // these expectations values are examples, for your cases set your own
    // it's not required to use all metrics, you can use just a few of them
    // Read _Available metrics_ where all keys are defined
    [METRICS.TTFCP]: {
      warn: '>=1500',
      error: '>=2000'
    },
    [METRICS.TTLCP]: {
      warn: '>=2000',
      error: '>=3000'
    },
    [METRICS.TTI]: {
      ...
    },
    [METRICS.TBT]: {
      ...
    },
    [METRICS.SI]: {
      ...
    },
  },
  sheets: {
    type: 'GOOGLE_SHEETS', // sheets service type. Available types: GOOGLE_SHEETS
    options: {
      spreadsheetId: 'sheet_id',
      tableName: 'data',
      uploadMedian: false // not required, set to true if you want to upload only the median run
    }
  },
  clientSecret: {
    // Data object. Can be get
    // either
    // by (using everything in step 1 here)[https://developers.google.com/sheets/api/quickstart/nodejs#step_1_turn_on_the_api_name]
    //
    // example format:
    //
    // installed: {
    //   client_id: "sample_client_id",
    //   project_id: "sample_project_id",
    //   auth_uri: "https://accounts.google.com/o/oauth2/auth",
    //   token_uri: "https://accounts.google.com/o/oauth2/token",
    //   auth_provider_x509_cert_url: "https://www.googleapis.com/oauth2/v1/certs",
    //   client_secret: "sample_client_secret",
    //   redirect_uris: [
    //     "url",
    //     "http://localhost"
    //   ]
    // }
    //
    // or
    // by (using everything in step 1 here)[https://developers.google.com/drive/v3/web/quickstart/nodejs]
  }
}

module.exports = {
  'url': 'http://example.com/',
  'sheets': {
    ...
  },
  'clientSecret': {
    ...
  }
}

module.exports = {
  'url': 'http://example.com/',
  'clientSecret': {
    ...
  }
}

module.exports = {
  'url': 'http://example.com/',
  'clientSecret': {
    ...
  }
}

// lib/metrics/metrics.ts
{
  METRICS: {
    TTFCP: 'firstContentfulPaint',
    TTLCP: 'largestContentfulPaint',
    TBT: 'totalBlockingTime',
    TTI: 'interactive',
    SI: 'speedIndex'
  }
}

const PWMetrics = require('pwmetrics');

const options = {
  flags: {
    runs: 3, // number or runs
    submit: true, // turn on submitting to Google Sheets
    upload: true, // turn on uploading to Google Drive
    view: true, // open uploaded traces to Google Drive in DevTools
    expectations: true, // turn on assertation metrics results against provides values
    chromeFlags: '--headless' // run in headless Chrome
  }
};

const pwMetrics = new PWMetrics('http://example.com/', options); // _All available configuration options_ can be used as `options`
pwMetrics.start(); // returns Promise