import latestVersion from 'latest-version'
import chalk from 'chalk'
import Box from 'cli-box'
import { compareVersions } from 'compare-versions'
import pkg from '../package.json' with { type: 'json' }
import { logger } from './logger.js'

const { cyan, greenBright, red, yellow } = chalk

export default async (): Promise<void> => {
  try {
    const latest = await latestVersion('wollok-ts-cli')
    if(latest){
      if(compareVersions(latest, pkg.version) === 1) {
        const box = Box(
          {
            h: 10,
            w: 72,
            marks: {
              nw: '╔', n: '═', ne: '╗',
              e: '║', se: '╝', s: '═',
              sw: '╚', w: '║', b: ' ',
            },
          },
          { text: content(latest), stretch: true, autoEOL: true, hAlign: 'middle', vAlign: 'center' }
        )
        process.stdout._write(box + '\n\n\n', 'utf-8', (_) => {
          logger.debug('Update notifier failed to print')
        })
      }
    }
  } catch(e) {
    logger.debug('Update notifier failed to check a new version:\n' + e)
  }
}

const content = (publishedVersion: string) => [
  'You are using an old version of Wollok CLI.',
  `${red(pkg.version)} → ${greenBright(publishedVersion)}`,
  'to update it run',
  yellow('npm upgrade -g wollok-ts-cli'),
  'or',
  `Visit ${cyan('https://github.com/uqbar-project/wollok-ts-cli/releases/latest')}`,
  'to download the latest version',
].join('\n')