const { log, output, META } = require('proc-log')
const semver = require('semver')
const pack = require('libnpmpack')
const libpub = require('libnpmpublish').publish
const runScript = require('@npmcli/run-script')
const pacote = require('pacote')
const npa = require('npm-package-arg')
const npmFetch = require('npm-registry-fetch')
const { redactLog: replaceInfo } = require('@npmcli/redact')
const { otplease } = require('../utils/auth.js')
const { getContents, logTar } = require('../utils/tar.js')
// for historical reasons, publishConfig in package.json can contain ANY config keys that npm supports in .npmrc files and elsewhere.
// We *may* want to revisit this at some point, and have a minimal set that's a SemVer-major change that ought to get a RFC written on it.
const { flatten } = require('@npmcli/config/lib/definitions')
const pkgJson = require('@npmcli/package-json')
const BaseCommand = require('../base-cmd.js')
const { oidc } = require('../utils/oidc.js')

class Publish extends BaseCommand {
  static description = 'Publish a package'
  static name = 'publish'
  static stage = false

  get isStage () {
    return this.constructor.stage
  }

  static params = [
    'tag',
    'access',
    'dry-run',
    'otp',
    'workspace',
    'workspaces',
    'include-workspace-root',
    'provenance',
  ]

  static usage = ['<package-spec>']
  static workspaces = true
  static ignoreImplicitWorkspace = false

  async exec (args) {
    if (args.length === 0) {
      args = ['.']
    }
    if (args.length !== 1) {
      throw this.usageError()
    }

    await this.#publish(args)
  }

  async execWorkspaces (args) {
    const useWorkspaces = args.length === 0 || args.includes('.')
    if (!useWorkspaces) {
      log.warn('Ignoring workspaces for specified package(s)')
      return this.exec(args)
    }
    await this.setWorkspaces()

    for (const [name, workspace] of this.workspaces.entries()) {
      try {
        await this.#publish([workspace], { workspace: name })
      } catch (err) {
        if (err.code !== 'EPRIVATE') {
          throw err
        }
        log.warn(this.#command, `Skipping workspace ${this.npm.chalk.cyan(name)}, marked as ${this.npm.chalk.bold('private')}`)
      }
    }
  }

  get #command () {
    return this.isStage ? 'stage' : 'publish'
  }

  async #publish (args, { workspace } = {}) {
    log.verbose(this.#command, replaceInfo(args))

    const unicode = this.npm.config.get('unicode')
    const dryRun = this.npm.config.get('dry-run')
    const json = this.npm.config.get('json')
    const defaultTag = this.npm.config.get('tag')
    const ignoreScripts = this.npm.config.get('ignore-scripts')
    const scriptShell = this.npm.config.get('script-shell') || undefined
    const { silent } = this.npm

    if (semver.validRange(defaultTag)) {
      throw new Error('Tag name must not be a valid SemVer range: ' + defaultTag.trim())
    }

    const opts = { ...this.npm.flatOptions, progress: false }

    // you can publish name@version, ./foo.tgz, etc even though the default is the 'file:.' cwd.
    const spec = npa(args[0])
    let manifest = await this.#getManifest(spec, opts)

    // packageExtensions is root-only project policy and must never be published; fail fast so dry-run reports it too
    this.#assertNoPackageExtensions(manifest)

    // only run scripts for directory type publishes
    if (spec.type === 'directory' && !ignoreScripts) {
      await runScript({
        event: 'prepublishOnly',
        path: spec.fetchSpec,
        stdio: 'inherit',
        pkg: manifest,
        scriptShell,
      })
    }

    // we pass dryRun: true to libnpmpack so it doesn't write the file to disk
    const tarballData = await pack(spec, {
      ...opts,
      foregroundScripts: this.npm.config.isDefault('foreground-scripts')
        ? true
        : this.npm.config.get('foreground-scripts'),
      dryRun: true,
      prefix: this.npm.localPrefix,
      workspaces: this.workspacePaths,
    })
    const pkgContents = await getContents(manifest, tarballData)
    const logPkg = () => logTar(pkgContents, { unicode, json, key: pkgContents.name })

    // The purpose of re-reading the manifest is in case it changed, so that we send the latest and greatest thing to the registry note that publishConfig might have changed as well!
    manifest = await this.#getManifest(spec, opts, true)
    // re-check the authoritative manifest in case a lifecycle script introduced packageExtensions
    this.#assertNoPackageExtensions(manifest)
    const force = this.npm.config.get('force')
    const isDefaultTag = this.npm.config.isDefault('tag') && !manifest.publishConfig?.tag

    if (!force) {
      const isPreRelease = Boolean(semver.parse(manifest.version).prerelease.length)
      if (isPreRelease && isDefaultTag) {
        throw new Error('You must specify a tag using --tag when publishing a prerelease version.')
      }
    }

    // If we are not in JSON mode then we show the user the contents of the tarball before it is published so they can see it while their otp is pending
    if (!json) {
      logPkg()
    }

    const resolved = npa.resolve(manifest.name, manifest.version)

    // make sure tag is valid, this will throw if invalid
    npa(`${manifest.name}@${defaultTag}`)

    const registry = npmFetch.pickRegistry(resolved, opts)

    await oidc({ packageName: manifest.name, registry, opts, config: this.npm.config })

    const creds = this.npm.config.getCredentialsByURI(registry)
    const noCreds = !(creds.token || creds.username || creds.certfile && creds.keyfile)
    const outputRegistry = replaceInfo(registry)

    if (workspace && manifest.private) {
      throw Object.assign(
        new Error(`This package has been marked as private
  Remove the 'private' field from the package.json to publish it.`),
        { code: 'EPRIVATE' }
      )
    }

    if (noCreds) {
      const msg = `This command requires you to be logged in to ${outputRegistry}`
      if (dryRun) {
        log.warn(this.#command, `${msg} (dry-run)`)
      } else {
        throw Object.assign(new Error(msg), { code: 'ENEEDAUTH' })
      }
    }

    if (!force) {
      const { highestVersion, versions } = await this.#registryVersions(resolved, registry)
      /* eslint-disable-next-line max-len */
      const highestVersionIsGreater = !!highestVersion && semver.gte(highestVersion, manifest.version)

      if (versions.includes(manifest.version)) {
        throw new Error(`You cannot publish over the previously published versions: ${manifest.version}.`)
      }

      if (highestVersionIsGreater && isDefaultTag) {
        throw new Error(`Cannot implicitly apply the "latest" tag because previously published version ${highestVersion} is higher than the new version ${manifest.version}. You must specify a tag using --tag.`)
      }
    }

    const access = opts.access === null ? 'default' : opts.access
    const verb = this.isStage ? 'Staging' : 'Publishing'
    let msg = `${verb} to ${outputRegistry} with tag ${defaultTag} and ${access} access`
    if (dryRun) {
      msg = `${msg} (dry-run)`
    }

    log.notice('', msg)

    let stageId
    if (!dryRun) {
      if (this.isStage) {
        // Stage intentionally bypasses otplease — 2FA is deferred to approve/reject
        const res = await libpub(manifest, tarballData, {
          ...opts,
          command: this.#command,
          stage: true,
        })
        stageId = res.stageId
      } else {
        await otplease(this.npm, opts, o => libpub(manifest, tarballData, o))
      }
    }

    // In json mode we don't log until the publish has completed as this will add it to the output only if completes successfully
    if (json) {
      if (stageId) {
        pkgContents.stageId = stageId
      }
      logTar(pkgContents, {
        unicode, json, key: pkgContents.name, redact: stageId ? false : undefined })
    }

    if (spec.type === 'directory' && !ignoreScripts) {
      await runScript({
        event: 'publish',
        path: spec.fetchSpec,
        stdio: 'inherit',
        pkg: manifest,
        scriptShell,
      })

      await runScript({
        event: 'postpublish',
        path: spec.fetchSpec,
        stdio: 'inherit',
        pkg: manifest,
        scriptShell,
      })
    }

    if (!json && !silent) {
      if (this.isStage) {
        const stagedMsg = stageId
          ? `+ ${pkgContents.id} (staged with id ${stageId})`
          : `+ ${pkgContents.id} (staged)`
        output.standard(stagedMsg, { [META]: true, redact: false })
        log.notice(this.#command, `package ${pkgContents.id} has been staged with tag ${defaultTag}`)
      } else {
        output.standard(`+ ${pkgContents.id}`)
      }
    }
  }

  async #registryVersions (spec, registry) {
    try {
      const packument = await pacote.packument(spec, {
        ...this.npm.flatOptions,
        preferOnline: true,
        registry,
        _isRoot: true,
      })
      if (typeof packument?.versions === 'undefined') {
        return { versions: [], highestVersion: null }
      }
      const ordered = Object.keys(packument?.versions)
        .flatMap(v => {
          const s = new semver.SemVer(v)
          if ((s.prerelease.length > 0) || packument.versions[v].deprecated) {
            return []
          }
          return s
        })
        .sort((a, b) => b.compare(a))
      const highestVersion = ordered.length >= 1 ? ordered[0].version : null
      const versions = ordered.map(v => v.version)
      return { versions, highestVersion }
    } catch (e) {
      return { versions: [], highestVersion: null }
    }
  }

  // packageExtensions is root-only project policy and must never reach the registry; private packages may keep it for local use
  #assertNoPackageExtensions (manifest) {
    if (!manifest.private && manifest.packageExtensions !== undefined) {
      throw Object.assign(
        new Error('packageExtensions is only honored at the project root and must not be published.'),
        { code: 'EPACKAGEEXTENSIONS' }
      )
    }
  }

  // if it's a directory, read it from the file system
  // otherwise, get the full metadata from whatever it is
  // XXX can't pacote read the manifest from a directory?
  async #getManifest (spec, opts, logWarnings = false) {
    let manifest
    if (spec.type === 'directory') {
      const changes = []
      const pkg = await pkgJson.fix(spec.fetchSpec, { changes })
      if (changes.length && logWarnings) {
        log.warn(this.#command, 'npm auto-corrected some errors in your package.json when publishing.  Please run "npm pkg fix" to address these errors.')
        log.warn(this.#command, `errors corrected:\n${changes.join('\n')}`)
      }
      // Prepare is the special function for publishing, different than normalize
      const { content } = await pkg.prepare()
      manifest = content
    } else {
      manifest = await pacote.manifest(spec, {
        ...opts,
        fullMetadata: true,
        fullReadJson: true,
      })
    }
    if (manifest.publishConfig) {
      const cliFlags = this.npm.config.data.get('cli').raw
      // Filter out properties set in CLI flags to prioritize them over corresponding `publishConfig` settings
      const filteredPublishConfig = Object.fromEntries(
        Object.entries(manifest.publishConfig).filter(([key]) => !(key in cliFlags)))
      if (logWarnings) {
        for (const key in filteredPublishConfig) {
          this.npm.config.checkUnknown('publishConfig', key)
        }
      }
      flatten(filteredPublishConfig, opts)
    }
    return manifest
  }
}

module.exports = Publish
