#!/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 COMPOSE_PROJECT_NAME = `cp-${process.env.CIRCLE_BRANCH}`;
const NAMESPACE = 'quay.io/yldio';
const ROOT = path.join(__dirname, '..');
const LOG = console.log;

const createTritonProfile = async () => {
  const { SDC_ACCOUNT = '', SDC_KEY_ID = '' } = process.env;

  LOG(
    `${figures.arrowRight} create triton profile SDC_ACCOUNT=${SDC_ACCOUNT.length} SDC_KEY_ID=${SDC_KEY_ID.length}`
  );

  const payload = JSON.stringify({
    url: 'https://eu-ams-1.api.joyent.com',
    account: SDC_ACCOUNT,
    keyId: SDC_KEY_ID,
    name: 'eu-ams-1',
    curr: true
  });

  const cp = execa('triton', ['profile', 'create', '--yes', '-f', '-'], {
    input: payload
  });

  cp.stdout.pipe(process.stdout);
  cp.stderr.pipe(process.stderr);

  return cp;
};

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

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

  const {
    _DOCKER_LOGIN_USERNAME,
    _DOCKER_LOGIN_PASSWORD,
    _DOCKER_REGISTRY
  } = process.env;

  return execa(
    'docker',
    [
      'login',
      '--email="."',
      `--username="${_DOCKER_LOGIN_USERNAME}"`,
      `--password="${_DOCKER_LOGIN_PASSWORD}"`,
      _DOCKER_REGISTRY
    ],
    {
      stdio: 'inherit'
    }
  );
};

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

  const { CIRCLE_BRANCH } = process.env;

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

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

  const images = await 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,
        '--build-arg',
        `CIRCLE_BRANCH=${CIRCLE_BRANCH}`,
        '.'
      ]),
      {
        stdio: 'inherit'
      }
    );

    return `${NAMESPACE}/${name}`;
  });

  await map(images, image => {
    LOG(`${figures.arrowRight} build.push ${image}`);
    return execa('docker', ['push', `${image}`], {
      stdio: 'inherit'
    });
  });
};

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

const deploy = async () => {
  const env = await getEnv();

  LOG(`${figures.arrowRight} deploy`);

  // kill containers
  await execa('docker-compose', ['kill'], {
    stdio: 'inherit',
    env: Object.assign({}, env, {
      COMPOSE_PROJECT_NAME
    })
  });

  // rm containers
  await execa('docker-compose', ['rm', '--force'], {
    stdio: 'inherit',
    env: Object.assign({}, env, {
      COMPOSE_PROJECT_NAME
    })
  });

  // pull new images
  await execa('docker-compose', ['pull', '--parallel'], {
    stdio: 'inherit',
    env: Object.assign({}, env, {
      COMPOSE_PROJECT_NAME
    })
  });

  // up project
  return execa(
    'docker-compose',
    [
      'up',
      '-d',
      '--build',
      '--force-recreate',
      '--build-arg',
      `CIRCLE_BRANCH=${process.env.CIRCLE_BRANCH}`
    ],
    {
      stdio: 'inherit',
      env: Object.assign({}, env, {
        COMPOSE_PROJECT_NAME
      })
    }
  );
};

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

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

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