compile

#!/usr/bin/env node

const fs = require('fs')
const process = require('process')
const program = require('commander')
const build = require('./scripts/build')
const buildIntegrations = require('./scripts/buildIntegrations')
const addSettings = require('./scripts/settings')
const path = require('path')
const server = require('./server')
const { spawnSync } = require('child_process')
const generateFile = require('./scripts/generateFile')
const open = require('open')
const filePath = path.join(__dirname + '/src/index.html')
const buildName = `${Math.floor(new Date() / 1000)}`;
const fileName = path.join(__dirname, 'builds', `analytics-${buildName}.js`)

program
  .option('-w, --writeKey <writeKey>', 'Segment writeKey to for viewing events in the debugger')
  .option('-s, --settings <settings>', '(Optional) Relative path to custom integrations settings file')
  .option('-c, --cdnDomain <cdnDomain>', 'Segment CDN domain', 'http://cdn.segment.com')
  .option('-n, --noRebuild', 'Skips yarn rebuild')
  .option('-p, --port <port>', 'Set a port to serve the local ajs file from', 3000)
  .parse(process.argv)

// Get program parameters.
const {
  cdnDomain,
  port,
  settings,
  noRebuild,
  writeKey,
} = program

if (!writeKey) {
  console.error('Error: --writeKey required')
  process.exit(1)
}

const opts = {
  shell: true,
  cwd: __dirname
}

if (!noRebuild) {
  // check if any files have changed since most recent `git add`
  const diff = spawnSync('git diff --name-only', opts)
  if (diff.stdout && (diff.stdout).toString().length) {
    opts.stdio = 'inherit'
    // if not, run `yarn install --no-lockfile` to pull in any updates made in the /integrations directory
    spawnSync('yarn install --no-lockfile', opts)
  }
}

let customSettings

if (settings) {
  const settingsPath = path.join(__dirname, settings)
  customSettings = JSON.parse(fs.readFileSync(settingsPath))
} else {
  console.info('**No custom settings file specified. Retrieving settings from Segment\'s CDN.**')
}

buildIntegrations()
build(async (ajs, integrationVersions, coreVersion) => {
  let compiled

  try {
    compiled = await addSettings({
      ajs,
      cdnDomain,
      integrationVersions,
      coreVersion,
      writeKey,
      customSettings
    })
  } catch(err) {
    console.error('Error:', err)
    return
  }

  if (!compiled) {
    console.error('Looks like we couldn\'t compile A.js! Please read the error output above and try again.')
    process.exit(1)
  }

  fs.writeFileSync(fileName, compiled)
  generateFile(writeKey, port)
  server(compiled, filePath, port)
  open(`http://localhost:${port}`)
})