import test from 'brittle'
import b4a from 'b4a'
import Hyperdrive from 'hyperdrive'
import Corestore from 'corestore'
import { mkdirSync, rmSync } from 'node:fs'
import { readFile, readdir } from 'node:fs/promises'
import path from 'node:path'
import { fileURLToPath } from 'node:url'
import { createRequire } from 'node:module'
import { PassThrough } from 'node:stream'
import { XTERM_CLEAR_SCROLLBACK_AND_VIEWPORT } from '../lib/cli/terminal-escapes.js'
import { runKernelFromSource, runBinCommand } from '../lib/boot/kernel-runner.js'
import { createGitFsFromVfs } from '../lib/vfs/git-fs-adapter.js'
import { runGitCli } from '../lib/tools/git-cli.js'
import {
  createStreamLineReader,
  sanitizeInteractiveShellLine
} from '../lib/cli/cli-readline.js'
import {
  createVfs,
  BARE_OS_PROC_FILE_TO_ID_HYPERCORE_PACK_HRPC_LIFECYCLE
} from '../lib/vfs/vfs.js'
import { parseHdmsPairArgv } from '../lib/p2p/hdms-cli-argv.js'
import hcCrypto from 'hypercore-crypto'
import idEnc from 'hypercore-id-encoding'
import {
  decodeRwShareOffer,
  decodeShareOffer,
  HDMS_AUTOPASS_SHARE_KEY,
  HDMS_AUTOPASS_SHARE_RW_KEY,
  normalizeWriterSecretHex
} from '../lib/p2p/hdms-share-offer.js'
import { buildBareOsHypercorePackHrpcLifecycleProcJson } from '../lib/proc/bare-os-proc-hypercore-pack-hrpc-lifecycle.js'
import { buildBareOsPearCorestoreHrpcProcJson } from '../lib/proc/bare-os-proc-pear-corestore-hrpc.js'
import { buildBareOsPearInspectLoggerTlsProcJson } from '../lib/proc/bare-os-proc-pear-inspect-logger-tls.js'
import { buildBareOsBareRuntimeProtoMuxProcJson } from '../lib/proc/bare-os-proc-bare-runtime-proto-mux.js'
import { buildBareOsBootGraphProcJson } from '../lib/boot/bare-os-boot-graph-proc.js'
import { pathnameExpandShellWord } from '../lib/shell/shell-glob.js'
import { createBareOsIpc } from '../lib/tools/bare-os-ipc.js'
import { BareOsSwarmConnectionManager } from '../lib/p2p/bare-os-swarm-connection-manager.js'
import {
  createBareOsLifecycleStateMachine,
  runTransactionalLifecycleHooks
} from '../lib/host/bare-os-lifecycle-manager.js'
import {
  bareOsRegisterCorestoreSuspendResumeHooks,
  bareOsInstallCorestoreSuspendResumeHooks
} from '../lib/host/corestore-host-lifecycle.js'
import { bareOsFindOrphanProcessRows } from '../lib/proc/bare-os-process-table.js'
import {
  topologicalOrderKernelExtensions,
  resolveKernelExtensionsFull
} from '../lib/boot/kernel-extension-resolver.js'
import { createBareOsProtomuxAliasRegistry } from '../lib/p2p/bare-os-protomux-alias-registry.js'
import { bareOsHttpUrlAllowed } from '../lib/security/bare-os-http-policy.js'
import {
  bareOsParseBareAclText,
  bareOsAclDeniesSubject
} from '../lib/vfs/bare-os-vfs-acl-enforce.js'
import { raceWithAbortAndTimeout } from '../lib/security/bare-os-abort.js'
import {
  tokenize,
  expandWord,
  execShellLine,
  expandArgvAliases,
  defaultShellAliases,
  loadBarerc,
  BARERC_SKELETON,
  splitTokensBySemicolon,
  splitTokensByAndOr,
  bareOsShellAstSnapshot,
  planShellRedirections,
  buildShellExecutionGraph,
  dispatchShellTrapSignal,
  BARE_OS_EXIT_STATUS_ENV,
  syncBareOsExitStatusEnv,
  getBareOsPipelineLimits,
  DEFAULT_PIPELINE_MAX_STAGES,
} from '../lib/shell/shell.js'
import { tokenizeBareShellLineDetailed } from '../lib/shell/shell-tokenizer.js'
import { decodeBareOsDollarQuote } from '../lib/shell/shell-lex.js'
import {
  applyBareOsThemeFromEnv,
  bareOsListThemeNames
} from '../lib/cli/bare-os-theme-presets.js'
import {
  bareParseLsColors,
  bareSerializeLsColors,
  bareLsColorOpenSgrFromMap,
  bareDefaultDircolorsDatabase,
  bareParseDircolorsDatabase
} from 'bare-os-lscolors'
import { BARE_OS_CTX_API_VERSION } from '../lib/ctx/bare-os-ctx-api.js'
import { buildBareOsRuntimeCaps } from '../lib/ctx/bare-os-runtime-caps.js'
import {
  bareOsBareModulesEnabled,
  bareOsBareModuleManifestEmbeddedRef,
  buildBareCtxObjectFromHost,
  buildPearCtxObjectFromHost,
  loadBareModuleManifest,
  maybeMergeBareFromDrive
} from '../lib/ctx/bare-os-ctx-bare.js'
import { maybeBareOsBuildBinManifest } from '../lib/tools/bare-os-bin-index.js'
import {
  createFishReadLine,
  fuzzyMatch,
  stripAnsi,
  parseHistoryFile,
  formatHistoryFile,
  dedupeConsecutiveHistory,
  searchHistoryEntries,
  shouldPersistShellHistoryCommand,
  scrubShellHistoryEntries,
  SHELL_BUILTINS,
  resolveShellPromptHookSegment
} from '../lib/cli/fish-readline.js'
import {
  parseCompletionContext,
  rankCompletionItems,
  suggestGhostFromHistory,
  suggestGhostFromFs,
  ghostReplaceCurrentWord,
  longestCommonCompletionPrefix,
  completeLine,
  levenshtein
} from '../lib/cli/completion-engine.js'
import {
  fieldMatches,
  dowFieldMatches,
  parseCronLine,
  jobMatchesDate
} from '../lib/initd/bare-cron.js'
import '../lib/services/bare-openssh.js'
import {
  bareInitdReadinessSnapshot,
  bareInitdShutdownActiveUnitsReverse,
  getBareServiceRuntime,
  registerBareInitdDisposer,
  registerKernelShutdownHook,
  runKernelShutdownHooks,
  startBareInitd,
  stopBareInitd,
  getLastBareInitdDagSnapshotJson
} from '../lib/initd/bare-initd.js'
import {
  appendVarLog,
  ensureBareOsVarLogTree,
  KERNEL_CONSOLE_LOG,
  BOOT_LOG
} from '../lib/vfs/bare-os-var-log.js'
import {
  bareOsKernelMetricsReset,
  bareOsKernelMetricsSnapshot
} from '../lib/boot/bare-os-kernel-metrics.js'
import { parseUnitDropInText } from '../lib/initd/bare-initd-user.js'
import {
  bareOsHyperswarmOptsFromEnv,
  bareOsBootJoinPeerHexFromEnv
} from '../lib/p2p/swarm-opts.js'
import {
  bareOsBootInitPrefetchEnabled,
  bareOsBootWarmBinDownloadDiffEnabled
} from '../lib/boot/boot-prefetch.js'
import { bareOsProcessTableSnapshot } from '../lib/proc/bare-os-process-table.js'
import { buildBareOsSyscallsProcJson } from '../lib/posix/bare-os-syscalls-proc-json.js'
import {
  bareOsParseSendmsgScmRights,
  wantPosixSocketScmRights
} from '../lib/posix/bare-os-socket-scm-rights.js'
import {
  parseBareOsHrpcAllowlistJson,
  bareOsHrpcAllowlistDeniesRoute
} from '../lib/tools/bare-os-hrpc-allowlist.js'
import { buildBareOsProtomuxExtensionsProcJson } from '../lib/p2p/bare-os-protomux-extensions-proc.js'
import { createBareOsDiskOsBridge } from '../lib/host/bare-os-disk-os-bridge.js'
import { buildBareOsReplicationLiveSketch } from '../lib/p2p/bare-os-replication-proc-live.js'
import {
  evaluateBareOsPeerAdmission,
  bareOsFormatPeerAdmissionAuditEvent,
  bareOsPeerAdmissionAuditRateAllow
} from '../lib/p2p/bare-os-peer-admission.js'
import {
  parseDelegateAllowSet,
  isDelegateKindAllowed
} from '../lib/host/host-delegate-registry.js'
import {
  bareOsAuditAppend,
  bareOsAuditVerifyRows
} from '../lib/security/bare-os-audit-chain.js'
import { bareOsDrainFcntlLockWaiters } from '../lib/posix/bare-os-fcntl-cooperative-lock.js'
import { buildBareOsReplicationOperatorSurfaceProcJson } from '../lib/proc/bare-os-proc-replication-operator-surface.js'
import {
  DEFAULT_CURL_USER_AGENT,
  DEFAULT_WGET_USER_AGENT
} from '../lib/tools/http-fetch-url.js'
import { filenameFromContentDisposition } from '../lib/tools/curl-cli.js'
import { encodeUstarHeader, runTarCli } from '../lib/tools/tar-cli.js'


export {
  test,
  b4a,
  Hyperdrive,
  Corestore,
  mkdirSync,
  rmSync,
  readFile,
  readdir,
  path,
  fileURLToPath,
  PassThrough,
  XTERM_CLEAR_SCROLLBACK_AND_VIEWPORT,
  runKernelFromSource,
  runBinCommand,
  createGitFsFromVfs,
  runGitCli,
  createStreamLineReader,
  sanitizeInteractiveShellLine,
  createVfs,
  BARE_OS_PROC_FILE_TO_ID_HYPERCORE_PACK_HRPC_LIFECYCLE,
  parseHdmsPairArgv,
  hcCrypto,
  idEnc,
  decodeRwShareOffer,
  decodeShareOffer,
  HDMS_AUTOPASS_SHARE_KEY,
  HDMS_AUTOPASS_SHARE_RW_KEY,
  normalizeWriterSecretHex,
  buildBareOsHypercorePackHrpcLifecycleProcJson,
  buildBareOsPearCorestoreHrpcProcJson,
  buildBareOsPearInspectLoggerTlsProcJson,
  buildBareOsBareRuntimeProtoMuxProcJson,
  buildBareOsBootGraphProcJson,
  pathnameExpandShellWord,
  createBareOsIpc,
  BareOsSwarmConnectionManager,
  createBareOsLifecycleStateMachine,
  runTransactionalLifecycleHooks,
  bareOsRegisterCorestoreSuspendResumeHooks,
  bareOsInstallCorestoreSuspendResumeHooks,
  bareOsFindOrphanProcessRows,
  topologicalOrderKernelExtensions,
  resolveKernelExtensionsFull,
  createBareOsProtomuxAliasRegistry,
  bareOsHttpUrlAllowed,
  bareOsParseBareAclText,
  bareOsAclDeniesSubject,
  raceWithAbortAndTimeout,
  tokenize,
  expandWord,
  execShellLine,
  expandArgvAliases,
  defaultShellAliases,
  loadBarerc,
  BARERC_SKELETON,
  splitTokensBySemicolon,
  splitTokensByAndOr,
  bareOsShellAstSnapshot,
  planShellRedirections,
  buildShellExecutionGraph,
  dispatchShellTrapSignal,
  BARE_OS_EXIT_STATUS_ENV,
  syncBareOsExitStatusEnv,
  getBareOsPipelineLimits,
  DEFAULT_PIPELINE_MAX_STAGES,
  tokenizeBareShellLineDetailed,
  decodeBareOsDollarQuote,
  applyBareOsThemeFromEnv,
  bareOsListThemeNames,
  bareParseLsColors,
  bareSerializeLsColors,
  bareLsColorOpenSgrFromMap,
  bareDefaultDircolorsDatabase,
  bareParseDircolorsDatabase,
  BARE_OS_CTX_API_VERSION,
  buildBareOsRuntimeCaps,
  bareOsBareModulesEnabled,
  bareOsBareModuleManifestEmbeddedRef,
  buildBareCtxObjectFromHost,
  buildPearCtxObjectFromHost,
  loadBareModuleManifest,
  maybeMergeBareFromDrive,
  maybeBareOsBuildBinManifest,
  createFishReadLine,
  fuzzyMatch,
  stripAnsi,
  parseHistoryFile,
  formatHistoryFile,
  dedupeConsecutiveHistory,
  searchHistoryEntries,
  shouldPersistShellHistoryCommand,
  scrubShellHistoryEntries,
  SHELL_BUILTINS,
  resolveShellPromptHookSegment,
  parseCompletionContext,
  rankCompletionItems,
  suggestGhostFromHistory,
  suggestGhostFromFs,
  ghostReplaceCurrentWord,
  longestCommonCompletionPrefix,
  completeLine,
  levenshtein,
  fieldMatches,
  dowFieldMatches,
  parseCronLine,
  jobMatchesDate,
  bareInitdReadinessSnapshot,
  bareInitdShutdownActiveUnitsReverse,
  getBareServiceRuntime,
  registerBareInitdDisposer,
  registerKernelShutdownHook,
  runKernelShutdownHooks,
  startBareInitd,
  stopBareInitd,
  getLastBareInitdDagSnapshotJson,
  appendVarLog,
  ensureBareOsVarLogTree,
  KERNEL_CONSOLE_LOG,
  BOOT_LOG,
  bareOsKernelMetricsReset,
  bareOsKernelMetricsSnapshot,
  parseUnitDropInText,
  bareOsHyperswarmOptsFromEnv,
  bareOsBootJoinPeerHexFromEnv,
  bareOsBootInitPrefetchEnabled,
  bareOsBootWarmBinDownloadDiffEnabled,
  bareOsProcessTableSnapshot,
  buildBareOsSyscallsProcJson,
  bareOsParseSendmsgScmRights,
  wantPosixSocketScmRights,
  parseBareOsHrpcAllowlistJson,
  bareOsHrpcAllowlistDeniesRoute,
  buildBareOsProtomuxExtensionsProcJson,
  createBareOsDiskOsBridge,
  buildBareOsReplicationLiveSketch,
  evaluateBareOsPeerAdmission,
  bareOsFormatPeerAdmissionAuditEvent,
  bareOsPeerAdmissionAuditRateAllow,
  parseDelegateAllowSet,
  isDelegateKindAllowed,
  bareOsAuditAppend,
  bareOsAuditVerifyRows,
  bareOsDrainFcntlLockWaiters,
  buildBareOsReplicationOperatorSurfaceProcJson,
  DEFAULT_CURL_USER_AGENT,
  DEFAULT_WGET_USER_AGENT,
  filenameFromContentDisposition,
  encodeUstarHeader,
  runTarCli
}

/** bare-ssh2 needs Bare `require.addon` (bare-crypto); skip auto-start in brittle-node. */
if (
  typeof process !== 'undefined' &&
  process.env &&
  process.env.BARE_OS_INITD_DISABLED === undefined
) {
  process.env.BARE_OS_INITD_DISABLED = 'bare-openssh'
}

export const __dirname = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..')
export const require = createRequire(path.join(__dirname, 'package.json'))
export const TAR_BLK = 512

/** @param {Uint8Array[]} parts */
export function concatTarParts(parts) {
  let n = 0
  for (const p of parts) n += p.length
  const out = new Uint8Array(n)
  let o = 0
  for (const p of parts) {
    out.set(p, o)
    o += p.length
  }
  return out
}

export function headerFromInit(init, name) {
  if (!init?.headers) return undefined
  const h = init.headers
  if (typeof h.get === 'function') return h.get(name)
  return undefined
}

export function testCorestoreDir(name) {
  const dir = path.join(
    __dirname,
    '.test-data',
    name + '-' + process.pid + '-' + Math.random().toString(36).slice(2)
  )
  mkdirSync(path.dirname(dir), { recursive: true })
  return dir
}

export function testCtx(drive, personal, env) {
  const shellEnv = {
    HOME: '/home/user',
    PATH: '/bin',
    USER: 'user',
    UID: '1000',
    GID: '1000',
    PWD: '/home/user',
    BARE_OS_EXIT_STATUS: '0',
    BARE_OS_SSH_LISTEN_PORT: '0',
    ...env
  }
  const bareOsIpc = createBareOsIpc()
  const vfs = createVfs(drive, personal, shellEnv, null, { bareOsIpc })
  const ctx = {
    drive,
    personalDrive: personal,
    vfs,
    bareOsIpc,
    env: shellEnv,
    console,
    b4a,
    async bareOsApplyTheme() {
      return applyBareOsThemeFromEnv(this)
    },
    bareOsListThemes() {
      return bareOsListThemeNames()
    }
  }
  return ctx
}

/** Personal-drive path backing logical `/home/<seg>/…` (matches `vfs.js`). */
export function personalHomeBacking(homePath, rel = '') {
  const seg = homePath.replace(/^\/home\//, '').split('/')[0] || 'user'
  const r = String(rel).replace(/^\//, '')
  return r ? `/.bare-os/home/${seg}/${r}` : `/.bare-os/home/${seg}`
}

/** Built `/bin/<name>` body from the repo kernel tree. */
export async function readBuiltBin(name) {
  const fs = await import('node:fs/promises')
  const p = path.join(__dirname, '../../kernel/bin', name)
  return fs.readFile(p, 'utf8')
}