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import { parse } from 'https://deno.land/std@0.93.0/flags/mod.ts'import { dim, bold } from 'https://deno.land/std@0.93.0/fmt/colors.ts'import { VERSION } from './version.ts'
const denoPermissionFlags = [  '-A',  '--allow-all',  '--allow-env',  '--allow-hrtime',  '--allow-net',  '--allow-plugin',  '--allow-read',  '--allow-run',  '--allow-write',]
async function main() {  const { _: args, ...options } = parse(Deno.args.filter(a => !denoPermissionFlags.includes(a)))  if (args.length == 0) {    console.log(bold('LAND'), VERSION)    console.log(dim(`Homepage: `), `https://deno.land/x/land`)    console.log(dim(`Repo: `), `https://github.com/postui/land`)    return  }
  let [moduleName, version] = args.shift()!.toString().split('@')  const versionMetaUrl = `https://cdn.deno.land/${moduleName}/meta/versions.json`  const resp1 = await fetch(versionMetaUrl)  if (resp1.status === 404 || resp1.status === 403) {    console.error(`Module '${moduleName}' not found`)    Deno.exit(1)  }  if (resp1.status !== 200) {    console.error(resp1.statusText + ':', versionMetaUrl)    Deno.exit(1)  }  const { latest, versions } = await resp1.json()  if (!version) {    version = latest  } else if (!versions.includes(version)) {    const v = version    if (v.startsWith('v')) {      version = v.slice(1)    } else {      version = 'v' + v    }    if (!versions.includes(version)) {      for (const ver of versions) {        if (ver.startsWith(v)) {          version = ver          break        } else if (v.startsWith('v') && ver.startsWith(v.slice(1))) {          version = ver          break        } else if (!v.startsWith('v') && ver.startsWith('v' + v)) {          version = ver          break        }      }    }    if (!versions.includes(version)) {      console.error(`Version '${v}' not found`)      Deno.exit(1)    }    if (version != v) {      console.log(dim(`Using version: ${version}`))    }  }
  const metaUrl = `https://cdn.deno.land/${moduleName}/versions/${version}/meta/meta.json`  const resp2 = await fetch(metaUrl)  if (resp2.status !== 200) {    console.error(resp2.statusText)    Deno.exit(1)  }  const { directory_listing } = await resp2.json()
  let command: string | null = null  let importMap: string | null = null  for (const name of ['cli.ts', 'cli.js', 'mod.ts', 'mod.js']) {    if (directory_listing.some((entry: any) => entry.type === 'file' && entry.path === `/${name}`)) {      command = name      break    }  }  for (const filename of Array.from(['import_map', 'import-map', 'importMap', 'importmap']).map(name => `${name}.json`)) {    if (directory_listing.some((entry: any) => entry.type === 'file' && entry.path === `/${filename}`)) {      importMap = filename      break    }  }
  if (command === null) {    console.error(`command not found`)    Deno.exit(1)  }
  const permissionFlags: string[] = []  const denoFlags: string[] = []  const appFlags: string[] = []  for (const f of Deno.args) {    if (denoPermissionFlags.includes(f)) {      permissionFlags.push(f)    }  }  for (const key of Object.keys(options)) {    const value = options[key]    const flagKey = (key.length === 1 ? '-' : '--') + key    if (flagKey === '--location' && typeof value === 'string') {      try {        const url = new URL(value)        denoFlags.push(`--location=${url.toString()}`)      } catch (error) { }    }    if (value && value !== true) {      appFlags.push(`${flagKey}=${value}`)    } else {      appFlags.push(flagKey)    }  }  if (permissionFlags.length === 0) {    const permissionsFile = directory_listing.find((entry: any) => entry.type === 'file' && (entry.path === `/PERMISSIONS` || entry.path === `/PERMISSIONS.txt`))    if (permissionsFile) {      const url = `https://cdn.deno.land/${moduleName}/versions/${version}/raw${permissionsFile.path}`      const resp3 = await fetch(url)      if (resp3.status === 200) {        const list = (await resp3.text()).split('\n').map(l => l.trim()).filter(Boolean).filter(l => !l.startsWith('#'))        permissionFlags.push(...list)        console.log(dim(`Load ${permissionsFile.path.slice(1)}: ${list.join(' ')}`))      }    }    if (permissionFlags.length > 0 && !permissionFlags.includes('--prompt')) {      permissionFlags.push('--prompt')    }  }  if (permissionFlags.length === 0) {    permissionFlags.push('--prompt')  }  if (!denoFlags.some(f => f.startsWith('--location='))) {    denoFlags.push(`--location=http://0.0.0.0`)  }  if (importMap !== null) {    denoFlags.push(`--import-map=https://deno.land/x/${moduleName}@${version}/${importMap}`)  }
  const cmd = Deno.run({    cmd: [      Deno.execPath(),      'run',      '--unstable',      ...denoFlags,      ...permissionFlags,      `https://deno.land/x/${moduleName}@${version}/${command}`,      ...args.map(a => a.toString()),      ...appFlags    ],    stdin: 'inherit',    stdout: 'inherit',  })  await cmd.status()  cmd.close()}
if (import.meta.main) {  main()}