#!/usr/bin/env node

'use strict';

const {exec, spawn} = require('child-process-promise');

const {join} = require('path');

const {readFileSync} = require('fs');

const theme = require('./theme');

const {getDateStringForCommit, logPromise, printDiff} = require('./utils');

const cwd = join(__dirname, '..', '..');

const CIRCLE_CI_BUILD = 12707;

const COMMIT = 'b3d1a81a9';

const VERSION = '1.2.3';

const run = async () => {

  const defaultOptions = {

    cwd,

    env: process.env,

  };

  try {

    // Start with a known build/revision:

    // https://circleci.com/gh/facebook/react/12707

    let promise = spawn(

      'node',

      [

        './scripts/release/prepare-release-from-ci.js',

        `--build=${CIRCLE_CI_BUILD}`,

      ],

      defaultOptions

    );

    logPromise(

      promise,

      theme`Checking out "next" build {version ${CIRCLE_CI_BUILD}}`

    );

    await promise;

    const dateString = await getDateStringForCommit(COMMIT);

    // Upgrade the above build top a known React version.

    // Note that using the --local flag skips NPM checkout.

    // This isn't totally necessary but is useful if we want to test an unpublished "next" build.

    promise = spawn(

      'node',

      [

        './scripts/release/prepare-release-from-npm.js',

        `--version=0.0.0-${COMMIT}-${dateString}`,

        '--local',

      ],

      defaultOptions

    );

    promise.childProcess.stdin.setEncoding('utf-8');

    promise.childProcess.stdout.setEncoding('utf-8');

    promise.childProcess.stdout.on('data', data => {

      if (data.includes('✓ Version for')) {

        // Update all packages to a stable version

        promise.childProcess.stdin.write(VERSION);

      } else if (data.includes('(y/N)')) {

        // Accept all of the confirmation prompts

        promise.childProcess.stdin.write('y');

      }

    });

    logPromise(promise, theme`Preparing stable release {version ${VERSION}}`);

    await promise;

    const beforeContents = readFileSync(

      join(cwd, 'scripts/release/snapshot-test.snapshot'),

      'utf-8'

    );

    await exec('cp build/temp.diff scripts/release/snapshot-test.snapshot', {

      cwd,

    });

    const afterContents = readFileSync(

      join(cwd, 'scripts/release/snapshot-test.snapshot'),

      'utf-8'

    );

    if (beforeContents === afterContents) {

      console.log(theme.header`Snapshot test passed.`);

    } else {

      printDiff(

        'scripts/release/snapshot-test.snapshot',

        beforeContents,

        afterContents

      );

      console.log();

      console.error(theme.error('Snapshot test failed!'));

      console.log();

      console.log(

        'If this failure was expected, please update the contents of the snapshot file:'

      );

      console.log(

        theme`  {command git add} {path scripts/release/snapshot-test.snapshot}`

      );

      console.log(

        theme`  {command git commit -m "Updating release script snapshot file."}`

      );

      process.exit(1);

    }

  } catch (error) {

    console.error(theme.error(error));

    process.exit(1);

  }

};

run();