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import { bold } from 'https://deno.land/std@0.106.0/fmt/colors.ts'import { basename, resolve } from 'https://deno.land/std@0.106.0/path/mod.ts'import { parse } from 'https://deno.land/std@0.106.0/flags/mod.ts'import { loadImportMap } from './server/config.ts'import { checkAlephDevEnv } from './server/helper.ts'import { existsDir, findFile } from './shared/fs.ts'import log from './shared/log.ts'import util from './shared/util.ts'import { VERSION } from './version.ts'
const commands = {  'init': 'Create a new app',  'dev': 'Start the app in development mode',  'start': 'Start the app in production mode',  'build': 'Build the app to a static site (SSG)',  'upgrade': 'Upgrade Aleph.js command'}
const helpMessage = `Aleph.js v${VERSION}The Full-stack Framework in Deno.
Docs: https://alephjs.org/docsBugs: https://github.com/alephjs/aleph.js/issues
Usage:    aleph <command> [...options]
Commands:    ${Object.entries(commands).map(([name, desc]) => `${name.padEnd(15)}${desc}`)    .join('\n    ')  }
Options:    -v, --version  Prints version number    -h, --help     Prints help message`
async function main() {  const { _: args, ...options } = parse(Deno.args)
  // prints aleph.js version  if (options.v) {    console.log(`aleph.js v${VERSION}`)    Deno.exit(0)  }
  // prints aleph.js and deno version  if (options.version) {    const { deno, v8, typescript } = Deno.version    console.log([      `aleph.js ${VERSION}`,      `deno ${deno}`,      `v8 ${v8}`,      `typescript ${typescript}`,    ].join('\n'))    Deno.exit(0)  }
  // prints help message when the command not found  if (!(args.length > 0 && args[0] in commands)) {    console.log(helpMessage)    Deno.exit(0)  }
  const command = String(args.shift()) as keyof typeof commands
  // prints command help message  if (options.h || options.help) {    const { helpMessage: cmdHelpMessage } = await import(`./commands/${command}.ts`)    console.log(commands[command])    console.log(cmdHelpMessage)    Deno.exit(0)  }
  // execute `init` command  if (command === 'init') {    const { default: init } = await import(`./commands/init.ts`)    await init(options?.template, args[0])    return  }
  // execute `upgrade` command  if (command === 'upgrade') {    const { default: upgrade } = await import(`./commands/upgrade.ts`)    await upgrade(options.v || options.version || args[0] || 'latest')    return  }
  // check working dir  const workingDir = resolve(String(args[0] || '.'))  if (!await existsDir(workingDir)) {    log.fatal('No such directory:', workingDir)  }
  checkAlephDevEnv()
  // run the command if import maps exists  const importMapFile = await findFile(workingDir, ['import_map', 'import-map', 'importmap', 'importMap'].map(name => `${name}.json`))  if (importMapFile) {    const importMap = await loadImportMap(importMapFile)    let updateImportMaps: boolean | null = null    let verison = VERSION    if (command === 'dev') {      for (const key in importMap.imports) {        const url = importMap.imports[key]        if (/\/\/deno\.land\/x\/aleph@v?\d+\.\d+\.\d+(-[a-z0-9\.]+)?\//.test(url)) {          const [prefix, rest] = util.splitBy(url, '@')          const [ver, suffix] = util.splitBy(rest, '/')          if (ver !== 'v' + VERSION && updateImportMaps === null) {            updateImportMaps = confirm(`You are using a different version of Aleph.js, expect ${ver} -> v${bold(VERSION)}, update '${basename(importMapFile)}'?`)            if (!updateImportMaps) {              verison = ver.slice(1)            }          }          if (updateImportMaps) {            importMap.imports[key] = `${prefix}@v${VERSION}/${suffix}`          }        }      }    }    if (updateImportMaps) {      await Deno.writeTextFile(importMapFile, JSON.stringify(importMap, undefined, 2))    }    await run(command, verison, importMapFile)    return  }
  // run the command without import maps  await run(command, VERSION)}
async function run(name: string, version: string, importMap?: string) {  const cmd: string[] = [    Deno.execPath(),    'run',    '-A',    '--unstable',    '--no-check',    '--location', 'http://localhost/'  ]  if (importMap) {    cmd.push('--import-map', importMap)  }  if (Deno.env.get('ALEPH_DEV') && version === VERSION) {    cmd.push(`./commands/${name}.ts`)  } else {    cmd.push(`https://deno.land/x/aleph@v${version}/commands/${name}.ts`)  }  cmd.push(...Deno.args.slice(1))  const p = Deno.run({    cmd,    stdout: 'inherit',    stderr: 'inherit'  })  await p.status()  p.close()  if (name === 'build') {    Deno.exit(0)  }}
if (import.meta.main) {  main()}