#!/usr/bin/env node

'use strict';

const clear = require('clear');

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

const {readJsonSync} = require('fs-extra');

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

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

const {execRead} = require('../utils');

const run = async ({cwd, packages, tags}) => {

  // Tags are named after the react version.

  const {version} = readJsonSync(

    `${cwd}/build/node_modules/react/package.json`

  );

  clear();

  if (tags.length === 1 && tags[0] === 'next') {

    console.log(

      theme`{header A "next" release} {version ${version}} {header has been published!}`

    );

  } else if (tags.length === 1 && tags[0] === 'experimental') {

    console.log(

      theme`{header An "experimental" release} {version ${version}} {header has been published!}`

    );

  } else {

    const nodeModulesPath = join(cwd, 'build/node_modules');

    console.log(

      theme.caution`The release has been published but you're not done yet!`

    );

    if (tags.includes('latest')) {

      // All packages are built from a single source revision,

      // so it is safe to read build info from any one of them.

      const arbitraryPackageName = packages[0];

      // FIXME: New build script does not output build-info.json. It's only used

      // by this post-publish print job, and only for "latest" releases, so I've

      // disabled it as a workaround so the publish script doesn't crash for

      // "next" and "experimental" pre-releases.

      const {commit} = readJsonSync(

        join(

          cwd,

          'build',

          'node_modules',

          arbitraryPackageName,

          'build-info.json'

        )

      );

      console.log();

      console.log(

        theme.header`Please review and commit all local, staged changes.`

      );

      console.log();

      console.log('Version numbers have been updated in the following files:');

      for (let i = 0; i < packages.length; i++) {

        const packageName = packages[i];

        console.log(theme.path`• packages/%s/package.json`, packageName);

      }

      const status = await execRead(

        'git diff packages/shared/ReactVersion.js',

        {cwd}

      );

      if (status) {

        console.log(theme.path`• packages/shared/ReactVersion.js`);

      }

      console.log();

      console.log(

        theme`{header Don't forget to also update and commit the }{path CHANGELOG}`

      );

      // Prompt the release engineer to tag the commit and update the CHANGELOG.

      // (The script could automatically do this, but this seems safer.)

      console.log();

      console.log(

        theme.header`Tag the source for this release in Git with the following command:`

      );

      console.log(

        theme`  {command git tag -a v}{version %s} {command -m "v%s"} {version %s}`,

        version,

        version,

        commit

      );

      console.log(theme.command`  git push origin --tags`);

      console.log();

      console.log(theme.header`Lastly, please fill in the release on GitHub.`);

      console.log(

        theme.link`https://github.com/facebook/react/releases/tag/v%s`,

        version

      );

      console.log(

        theme`\nThe GitHub release should also include links to the following artifacts:`

      );

      for (let i = 0; i < packages.length; i++) {

        const packageName = packages[i];

        if (existsSync(join(nodeModulesPath, packageName, 'umd'))) {

          const {version: packageVersion} = readJsonSync(

            join(nodeModulesPath, packageName, 'package.json')

          );

          console.log(

            theme`{path • %s:} {link https://unpkg.com/%s@%s/umd/}`,

            packageName,

            packageName,

            packageVersion

          );

        }

      }

      // Update reactjs.org so the React version shown in the header is up to date.

      console.log();

      console.log(

        theme.header`Once you've pushed changes, update the docs site.`

      );

      console.log(

        'This will ensure that any newly-added error codes can be decoded.'

      );

      console.log();

    }

  }

};

module.exports = run;