#!/usr/bin/env node

const execa = require('execa');
const { parse } = require('dotenv');
const main = require('apr-main');
const map = require('apr-map');
const series = require('apr-series');
const globby = require('globby');
const path = require('path');
const flatten = require('lodash.flatten');
const readPkg = require('read-pkg');
const figures = require('figures');

const NAMESPACE = 'quay.io/yldio';
const ROOT = path.join(__dirname, '..');
const LOG = console.log;

const getEnv = async () => {
  const tritonEnv = await execa.stdout('triton', ['env']);
  const dotEnv = tritonEnv.replace(/^export /gim, '');
  return Object.assign({}, process.env, parse(dotEnv));
};

const login = ({
  _DOCKER_LOGIN_USERNAME,
  _DOCKER_LOGIN_PASSWORD,
  _DOCKER_REGISTRY
}) => async () => {
  LOG(`${figures.arrowRight} login`);
  return execa('docker', [
    'login',
    `--username="${_DOCKER_LOGIN_USERNAME}"`,
    `--password="${_DOCKER_LOGIN_PASSWORD}"`,
    _DOCKER_REGISTRY
  ], {
    stdio: 'inherit'
  });
};

const build = ({ CIRCLE_BRANCH }) => async () => {
  LOG(`${figures.arrowRight} build`);

  const dockerfiles = await globby(['packages/*/Dockerfile'], {
    cwd: ROOT
  });

  LOG(`${figures.arrowRight} build.dockerfiles`);
  LOG(JSON.stringify(dockerfiles, null, 2));

  return map(dockerfiles, async dockerfile => {
    const folder = path.resolve(ROOT, path.dirname(dockerfile));
    const { name } = await readPkg(folder);
    const tags = [`${name}:${CIRCLE_BRANCH}`, `${name}:latest`];

    LOG(`${figures.arrowRight} build.name ${name}`);
    LOG(JSON.stringify(tags, null, 2));

    await execa(
      'docker',
      flatten([
        'build',
        flatten(tags.map(name => ['-t', `${NAMESPACE}/${name}`])),
        '-f',
        dockerfile,
        '.'
      ]),
      {
        stdio: 'inherit'
      }
    );

    LOG(`${figures.arrowRight} build.push ${NAMESPACE}/${name}`);
    return execa('docker', ['push', `${NAMESPACE}/${name}`], {
      stdio: 'inherit'
    });
  });
};

const logout = env => () => {
  LOG(`${figures.arrowRight} logout`);
  return execa('docker', ['logout'], {
    stdio: 'inherit'
  });
};

const deploy = env => () => {
  LOG(`${figures.arrowRight} deploy`);
  return execa('docker-compose', ['up', '-d', '--build'], {
    stdio: 'inherit',
    env
  });
};

const run = async () => {
  const env = await getEnv();
  LOG(`${figures.arrowRight} .env`);
  LOG(JSON.stringify(Object.keys(env), null, 2));

  return series([login(env), build(env), logout(env), deploy(env)]);
};

LOG(`${figures.arrowRight} DEPLOY`);
main(run());