const path = require('path');
const { promises: fs } = require('fs');
const yargs = require('yargs/yargs');
const { hideBin } = require('yargs/helpers');
const { exitWithError } = require('../../development/lib/exit-with-error');
const {
  isWritable,
  getFirstParentDirectoryThatExists,
} = require('../helpers/file');
const { convertToHexValue, withFixtures } = require('./helpers');
const FixtureBuilder = require('./fixture-builder');

const ganacheOptions = {
  accounts: [
    {
      secretKey:
        '0x7C9529A67102755B7E6102D6D950AC5D5863C98713805CEC576B945B15B71EAC',
      balance: convertToHexValue(25000000000000000000),
    },
  ],
};

async function loadNewAccount() {
  let loadingTimes;

  await withFixtures(
    {
      fixtures: new FixtureBuilder().build(),
      ganacheOptions,
    },
    async ({ driver }) => {
      await driver.navigate();
      await driver.fill('#password', 'correct horse battery staple');
      await driver.press('#password', driver.Key.ENTER);

      await driver.clickElement('.account-menu__icon');
      const timestampBeforeAction = new Date();
      await driver.clickElement({ text: 'Create account', tag: 'div' });
      await driver.fill('.new-account-create-form input', '2nd account');
      await driver.clickElement({ text: 'Create', tag: 'button' });
      await driver.waitForSelector({
        css: '.currency-display-component__text',
        text: '0',
      });
      const timestampAfterAction = new Date();
      loadingTimes = timestampAfterAction - timestampBeforeAction;
    },
  );
  return loadingTimes;
}

async function confirmTx() {
  let loadingTimes;
  await withFixtures(
    {
      fixtures: new FixtureBuilder().build(),
      ganacheOptions,
    },
    async ({ driver }) => {
      await driver.navigate();
      await driver.fill('#password', 'correct horse battery staple');
      await driver.press('#password', driver.Key.ENTER);

      await driver.clickElement('[data-testid="eth-overview-send"]');

      await driver.fill(
        'input[placeholder="Search, public address (0x), or ENS"]',
        '0x2f318C334780961FB129D2a6c30D0763d9a5C970',
      );

      const inputAmount = await driver.findElement('.unit-input__input');
      await inputAmount.fill('1');

      await driver.clickElement({ text: 'Next', tag: 'button' });
      const timestampBeforeAction = new Date();
      await driver.clickElement({ text: 'Confirm', tag: 'button' });

      await driver.clickElement('[data-testid="home__activity-tab"]');
      await driver.wait(async () => {
        const confirmedTxes = await driver.findElements(
          '.transaction-list__completed-transactions .transaction-list-item',
        );
        return confirmedTxes.length === 1;
      }, 10000);

      await driver.waitForSelector('.transaction-status--confirmed');
      const timestampAfterAction = new Date();
      loadingTimes = timestampAfterAction - timestampBeforeAction;
    },
  );
  return loadingTimes;
}

async function main() {
  const { argv } = yargs(hideBin(process.argv)).usage(
    '$0 [options]',
    'Run a page load benchmark',
    (_yargs) =>
      _yargs.option('out', {
        description:
          'Output filename. Output printed to STDOUT of this is omitted.',
        type: 'string',
        normalize: true,
      }),
  );

  const results = {};
  results.loadNewAccount = await loadNewAccount();
  results.confirmTx = await confirmTx();
  const { out } = argv;

  if (out) {
    const outputDirectory = path.dirname(out);
    const existingParentDirectory = await getFirstParentDirectoryThatExists(
      outputDirectory,
    );
    if (!(await isWritable(existingParentDirectory))) {
      throw new Error('Specified output file directory is not writable');
    }
    if (outputDirectory !== existingParentDirectory) {
      await fs.mkdir(outputDirectory, { recursive: true });
    }
    await fs.writeFile(out, JSON.stringify(results, null, 2));
  } else {
    console.log(JSON.stringify(results, null, 2));
  }
}

main().catch((error) => {
  exitWithError(error);
});