includable / cli

const fs = require('fs')

const cli = require('pixl-cli')

const path = require('path')

const util = require('../util')

const chalk = require('chalk')

const semver = require('semver')

const manifest = require('../../package.json')

var versionCheckFile = path.join(util.getPluginsDirectory(), '.version_check_cache')

function setNeedsCheck (force) {

  if (!fs.existsSync(util.getPluginsDirectory())) {

    fs.mkdirSync(util.getPluginsDirectory())

  }

  fs.writeFileSync(versionCheckFile, force ? '-2' : (new Date()).getTime().toString(), 'utf8')

}

function getLatestVersion (cb) {

  util.request('cli/version').timeout(2000).end(function (response) {

    if (response.body && typeof response.body === 'object' && 'data' in response.body) {

      cb(response.body.data)

    }

    cb(null)

  })

}

module.exports = function (cb) {

  if (!needsCheck()) {

    cb()

    return

  }

  var didCallback = false

  var stopSpinner = util.output.wait('Checking for updates')

  getLatestVersion(function (version) {

    if (version) {

      if (semver.gt(version, manifest.version)) {

        var type = semver.diff(version, manifest.version)

        var color = type === 'patch' ? 'yellow' : 'red'

        cli.print('\n' +

          cli.box(cli.center(chalk[color](chalk.bold('Update available: v' + version)) + '\n' +

            chalk.white('npm i -g includable@latest'), 33), {

              styles: [color],

              indent: 2

            }) + '\n'

        )

        setNeedsCheck(true)

      } else {

        setNeedsCheck(false)

      }

    }

    if (!didCallback) {

      didCallback = true

      stopSpinner()

      cb()

    }

  })

}