#!/usr/bin/env node
// Package the server separately from its compatibility launcher.
import { fork, spawnSync } from 'node:child_process'
import { build } from 'esbuild'
import {
  buildOrcadEntry,
  buildOrcadCli,
  buildOrcadLauncher,
  ORCAD_SERVER_BUILD_TARGET,
  ORCAD_BUNDLE_PLUGINS,
  ORCAD_EXTERNAL_MODULES,
  ORCAD_CHILD_ENTRY_POINTS,
  ORCAD_COMMONJS_MODULE_OPTIONS,
  orcadChildOutputFilename
} from './orcad-entry-build.mjs'
import { createRequire } from 'node:module'
import {
  chmodSync,
  copyFileSync,
  cpSync,
  existsSync,
  mkdirSync,
  mkdtempSync,
  readFileSync,
  rmSync,
  writeFileSync
} from 'node:fs'
import { tmpdir } from 'node:os'
import { dirname, join, resolve } from 'node:path'
import process from 'node:process'
import { smokeProfileStateWorkers } from './profile-state-worker-smoke.mjs'
import { smokeForeignSqliteReaderWorker } from './foreign-sqlite-reader-worker-smoke.mjs'
import { smokeSessionScannerService } from './session-scanner-service-smoke.mjs'
import { materializeWatcherPackage } from './orcad-watcher-package.mjs'
import { stageOrcadWindowsProcessTree } from './orcad-windows-process-tree.mjs'
import { stageOrcadWindowsCliLauncher } from './orcad-windows-cli-launcher.mjs'
import { stageOrcadWindowsSecurity } from './orcad-windows-security.mjs'
import { stageOrcadLinearSdk } from './orcad-linear-sdk-package.mjs'
import { stageOrcadMobileWebBundle } from './orcad-mobile-web-bundle.mjs'
import {
  ORCAD_EMOJI_SHORTCODE_DATASET,
  ORCAD_CLI_ENTRY_FILENAME,
  ORCAD_CLI_PACKAGE_FILENAME,
  ORCAD_COMPUTER_USE_RUNTIME_ARTIFACTS,
  ORCAD_LAUNCHER_FILENAME,
  ORCAD_SERVER_ENTRY_FILENAME,
  ORCAD_NODE_PTY_DIR,
  ORCAD_NODE_PTY_JS_ARTIFACTS,
  ORCAD_NODE_RUNTIME_MARKER_FILENAME,
  ORCAD_PARCEL_WATCHER_ENTRY,
  ORCAD_PARCEL_WATCHER_NATIVE,
  ORCAD_SERVER_TARGET_FILENAME,
  ORCAD_VERSION_FILENAME,
  orcadNodePtySlotFiles,
  orcadRipgrepArtifact
} from '../../src/shared/orcad-artifacts.ts'
import { computeOrcadFullVersion } from './orcad-artifact-version.mjs'
import { NODE_RUNTIME_ASSETS, NODE_RUNTIME_PIN } from '../../src/shared/node-runtime-pin.ts'
import { findSlotProblems, readManifest } from './orcad-prebuild-slot-contents.mjs'
import { orcadAgentBrowserNativeName } from '../../src/shared/orcad-agent-browser-name.ts'
import { runProcessSync } from '@orca/process-host'
import { describeProcessFailure } from './process-failure-message.mjs'
import { resolveBuildSourceCommit } from './build-source-commit.mjs'

const { darkBuildMarkers } = createRequire(import.meta.url)('../dark-build-switches.cjs')

const ROOT = join(import.meta.dirname, '..', '..')
const OUT_DIR = process.env.ORCAD_OUT_DIR
  ? resolve(process.env.ORCAD_OUT_DIR)
  : join(ROOT, 'out', 'orcad')
// Ship fork/worker entries beside orcad.js: remote deployments have no desktop out/main fallback, and a missing daemon loses terminals on restart.
const childOutFile = (role) =>
  join(OUT_DIR, orcadChildOutputFilename(ORCAD_CHILD_ENTRY_POINTS[role]))
const WATCHER_OUT_FILE = childOutFile('watcher')
const DAEMON_OUT_FILE = childOutFile('daemon')
const OUT_FILE = join(OUT_DIR, ORCAD_LAUNCHER_FILENAME)
const SERVER_OUT_FILE = join(OUT_DIR, ORCAD_SERVER_ENTRY_FILENAME)
const BUILD_TARGET = process.env.ORCAD_BUILD_TARGET
if (!BUILD_TARGET) {
  throw new Error('ORCAD_BUILD_TARGET is required; run `pnpm build:orcad`')
}
const [targetPlatform, targetArch] = BUILD_TARGET.split('-')
const targetIsWindows = targetPlatform === 'win32'
const runtimeAsset = NODE_RUNTIME_ASSETS[BUILD_TARGET]
if (!runtimeAsset) {
  throw new Error(`Unsupported ORCAD_BUILD_TARGET: ${BUILD_TARGET}`)
}
// Set only when the build host can run this target's runtime.
const nodeRuntimePath = process.env.ORCAD_NODE_RUNTIME_PATH || null
const PREBUILDS_DIR = process.env.ORCAD_PREBUILDS_DIR
if (!PREBUILDS_DIR) {
  throw new Error('ORCAD_PREBUILDS_DIR is required; run `pnpm build:orcad`')
}
const AGENT_BROWSER_NAME = orcadAgentBrowserNativeName(
  targetPlatform,
  targetArch,
  BUILD_TARGET.endsWith('-musl') ? 'musl' : 'glibc'
)
const AGENT_BROWSER_SOURCE = join(ROOT, 'node_modules', 'agent-browser', 'bin', AGENT_BROWSER_NAME)
const AGENT_BROWSER_OUTPUT = join(OUT_DIR, AGENT_BROWSER_NAME)
const WATCHER_MODULE_DIR = join(OUT_DIR, 'node_modules', '@parcel', 'watcher')

async function stageParcelWatcher(target) {
  const requireFromWatcher = createRequire(
    join(ROOT, 'node_modules', '@parcel', 'watcher', 'index.js')
  )
  const nativeSource = await materializeWatcherPackage(target)
  const wrapperSource = requireFromWatcher.resolve('@parcel/watcher/wrapper.js')
  mkdirSync(WATCHER_MODULE_DIR, { recursive: true })
  await build({
    ...ORCAD_COMMONJS_MODULE_OPTIONS,
    stdin: {
      contents:
        `const {createWrapper}=require(${JSON.stringify(wrapperSource)});` +
        `module.exports=createWrapper(require('./watcher.node'));`,
      resolveDir: ROOT,
      sourcefile: 'orcad-parcel-watcher-entry.js'
    },
    bundle: true,
    platform: 'node',
    target: ORCAD_SERVER_BUILD_TARGET,
    format: 'cjs',
    outfile: join(OUT_DIR, ORCAD_PARCEL_WATCHER_ENTRY),
    external: ['./watcher.node'],
    minify: true,
    sourcemap: false,
    logLevel: 'error'
  })
  copyFileSync(nativeSource, join(OUT_DIR, ORCAD_PARCEL_WATCHER_NATIVE))
}

/** node-pty's JS plus only this target's prebuild slot, laid out the way node-pty's loader looks. */
function stageNodePty(target) {
  const problems = findSlotProblems(readManifest(PREBUILDS_DIR), PREBUILDS_DIR, [target])
  if (problems.length > 0) {
    throw new Error(`[build-orcad] node-pty prebuild for ${target}: ${problems.join('; ')}`)
  }
  const slotFiles = Object.keys(readManifest(PREBUILDS_DIR).slots[target].files).sort()
  const expected = orcadNodePtySlotFiles(target).sort()
  if (slotFiles.join('\0') !== expected.join('\0')) {
    throw new Error(
      `[build-orcad] ${target} prebuild ships ${slotFiles.join(', ')}; orcad-artifacts.ts expects ${expected.join(', ')}`
    )
  }
  const sourceDir = dirname(createRequire(import.meta.url).resolve('node-pty/package.json'))
  for (const artifact of ORCAD_NODE_PTY_JS_ARTIFACTS) {
    const destination = join(OUT_DIR, artifact)
    mkdirSync(dirname(destination), { recursive: true })
    copyFileSync(join(sourceDir, artifact.slice(ORCAD_NODE_PTY_DIR.length + 1)), destination)
  }
  for (const file of expected) {
    const destination = join(OUT_DIR, ORCAD_NODE_PTY_DIR, 'build', 'Release', ...file.split('/'))
    mkdirSync(dirname(destination), { recursive: true })
    copyFileSync(join(PREBUILDS_DIR, target, ...file.split('/')), destination)
    if (file === 'spawn-helper') {
      chmodSync(destination, 0o755)
    }
  }
}

rmSync(OUT_DIR, { recursive: true, force: true })
mkdirSync(OUT_DIR, { recursive: true })
writeFileSync(join(OUT_DIR, ORCAD_SERVER_TARGET_FILENAME), `${BUILD_TARGET}\n`)
// Outside the artifact list, so the version hash and every deploy ignore it.
for (const marker of darkBuildMarkers()) {
  writeFileSync(join(OUT_DIR, marker.fileName), marker.text)
}
writeFileSync(
  join(OUT_DIR, ORCAD_NODE_RUNTIME_MARKER_FILENAME),
  `${runtimeAsset.executableSha256}\n`
)
stageNodePty(BUILD_TARGET)
await stageParcelWatcher(BUILD_TARGET)
stageOrcadWindowsProcessTree(ROOT, OUT_DIR, BUILD_TARGET)
stageOrcadWindowsCliLauncher(ROOT, OUT_DIR, BUILD_TARGET)
stageOrcadWindowsSecurity(ROOT, OUT_DIR, BUILD_TARGET, undefined, undefined, {
  enabled: process.env.ORCA_REUSE_PREPARED_WINDOWS_SECURITY === 'true',
  runtimePath: nodeRuntimePath
})
const emojiDatasetOutput = join(OUT_DIR, ORCAD_EMOJI_SHORTCODE_DATASET)
mkdirSync(dirname(emojiDatasetOutput), { recursive: true })
copyFileSync(
  createRequire(import.meta.url).resolve('emojibase-data/en/shortcodes/emojibase.json'),
  emojiDatasetOutput
)
await stageOrcadLinearSdk(ROOT, OUT_DIR)
// The desktop template omits it: ~10 MB per target, and orcad already treats it as optional.
if (existsSync(AGENT_BROWSER_SOURCE) && process.env.ORCAD_OMIT_AGENT_BROWSER !== '1') {
  copyFileSync(AGENT_BROWSER_SOURCE, AGENT_BROWSER_OUTPUT)
  if (!targetIsWindows) {
    chmodSync(AGENT_BROWSER_OUTPUT, 0o755)
  }
}
{
  const [, ripgrepPlatform, ripgrepName] = orcadRipgrepArtifact(BUILD_TARGET).split('/')
  const outputDir = join(OUT_DIR, 'ripgrep', ripgrepPlatform)
  mkdirSync(outputDir, { recursive: true })
  const outputPath = join(outputDir, ripgrepName)
  copyFileSync(
    join(ROOT, 'node_modules', '@vscode', 'ripgrep-universal', 'bin', ripgrepPlatform, ripgrepName),
    outputPath
  )
  if (!targetIsWindows) {
    chmodSync(outputPath, 0o755)
  }
}
cpSync(join(ROOT, 'resources', 'licenses', 'ripgrep'), join(OUT_DIR, 'ripgrep', 'licenses'), {
  recursive: true
})
cpSync(join(ROOT, 'resources', 'native-chat-visuals'), join(OUT_DIR, 'native-chat-visuals'), {
  recursive: true
})
for (const artifact of ORCAD_COMPUTER_USE_RUNTIME_ARTIFACTS) {
  mkdirSync(dirname(join(OUT_DIR, artifact)), { recursive: true })
  copyFileSync(join(ROOT, 'native', ...artifact.split('/')), join(OUT_DIR, ...artifact.split('/')))
}
stageOrcadMobileWebBundle(OUT_DIR)

// Build children individually to land flat beside orcad.js; multi-entry outdir mirrors source directories and breaks runtime resolution.
function buildForkedChild(entryPoint, outfile) {
  return build({
    ...ORCAD_COMMONJS_MODULE_OPTIONS,
    entryPoints: [entryPoint],
    bundle: true,
    platform: 'node',
    target: ORCAD_SERVER_BUILD_TARGET,
    format: 'cjs',
    outfile,
    external: ORCAD_EXTERNAL_MODULES,
    plugins: ORCAD_BUNDLE_PLUGINS,
    metafile: true,
    minify: true,
    sourcemap: false,
    define: {
      ...ORCAD_COMMONJS_MODULE_OPTIONS.define,
      'process.env.NODE_ENV': '"production"'
    },
    logLevel: 'error'
  })
}

const childResults = await Promise.all(
  Object.values(ORCAD_CHILD_ENTRY_POINTS).map((entryPoint) =>
    buildForkedChild(join(ROOT, entryPoint), join(OUT_DIR, orcadChildOutputFilename(entryPoint)))
  )
)

const result = await buildOrcadEntry(SERVER_OUT_FILE)
const cliResult = await buildOrcadCli(join(OUT_DIR, ORCAD_CLI_ENTRY_FILENAME))
const { version: cliVersion } = JSON.parse(readFileSync(join(ROOT, 'package.json'), 'utf8'))
// Why commit: the stamp keys one serve-supervisor snapshot per build.
const cliPackage = {
  type: 'commonjs',
  private: true,
  version: cliVersion,
  commit: resolveBuildSourceCommit()
}
writeFileSync(join(OUT_DIR, ORCAD_CLI_PACKAGE_FILENAME), `${JSON.stringify(cliPackage)}\n`)
const launcherResult = await buildOrcadLauncher(OUT_FILE)

const output = Object.values(result.metafile.outputs).find(
  (o) => o.entryPoint === 'src/main/orcad/main.ts'
)
// Check metafile original specifiers, not resolved paths, to catch bundled Electron; inspect children too or daemon fork silently fails.
function collectImporters(metafiles, matches) {
  const importers = new Set()
  for (const metafile of metafiles) {
    for (const [file, info] of Object.entries(metafile.inputs)) {
      for (const imported of info.imports ?? []) {
        if (matches(imported.original ?? imported.path)) {
          importers.add(file)
        }
      }
    }
  }
  return importers
}

const metafiles = [
  launcherResult.metafile,
  result.metafile,
  cliResult.metafile,
  ...childResults.map((child) => child.metafile)
]
const electronImporters = collectImporters(
  metafiles,
  (specifier) => specifier === 'electron' || specifier.startsWith('electron/')
)
const sqliteImporters = collectImporters(metafiles, (specifier) => specifier === 'node:sqlite')
// A bundled UMD factory keeps its relative requires, which fail beside the single-file bundle (#33592).
const umdInputs = metafiles.flatMap((metafile) =>
  Object.keys(metafile.inputs).filter((file) => /[\\/]lib[\\/]umd[\\/]/.test(file))
)

const graphErrors = []
if (electronImporters.size > 0) {
  graphErrors.push(
    `${electronImporters.size} module(s) in the bundle import electron:\n${[...electronImporters]
      .map((file) => `  - ${file}`)
      .join('\n')}`
  )
}
if (sqliteImporters.size > 0) {
  graphErrors.push(
    `${sqliteImporters.size} module(s) in the bundle import node:sqlite:\n${[...sqliteImporters]
      .map((file) => `  - ${file}`)
      .join('\n')}`
  )
}
if (umdInputs.length > 0) {
  graphErrors.push(
    `${umdInputs.length} UMD module(s) in the bundle; resolve their ESM build in ORCAD_BUNDLE_PLUGINS:\n${umdInputs
      .map((file) => `  - ${file}`)
      .join('\n')}`
  )
}

if (graphErrors.length > 0) {
  console.error(`[build-orcad] ${graphErrors.join('\n')}`)
  // Entry directly imports ipc/pty beyond runtime ratchet graph; add orcad as ratchet entry to prevent the measurements drifting.
  process.exitCode = 1
} else {
  // Smoke plain-Node resolution beyond Electron-name scans: dynamic requires/natives/top-level throws can still fail.
  // Assert exit code: minified crash reports echo the whole bundle line, falsely matching any expected message.
  const smoke = spawnSync(process.execPath, [SERVER_OUT_FILE, '--orcad-smoke-load-check'], {
    encoding: 'utf8',
    timeout: 60_000
  })
  const smokeOutput = `${smoke.stdout ?? ''}${smoke.stderr ?? ''}`
  if (smoke.error || smoke.signal || smoke.status !== 0) {
    console.error(
      `[build-orcad] the bundle lost Node load compatibility.\n` +
        `Expected a clean load-check exit, got status=${smoke.status ?? 'none'} ` +
        `signal=${smoke.signal ?? 'none'} ` +
        `error=${smoke.error?.message ?? 'none'}\n${smokeOutput.slice(0, 2000)}`
    )
    process.exitCode = 1
  }
  const providerSmoke = runProcessSync({
    program: process.execPath,
    args: [SERVER_OUT_FILE, '--orcad-structured-provider-load-check'],
    timeoutMs: 60_000
  })
  if (providerSmoke.code !== 0 || providerSmoke.timedOut || providerSmoke.outputTruncated) {
    console.error(
      `[build-orcad] the packaged structured provider failed to load.\n${describeProcessFailure(providerSmoke)}`
    )
    process.exitCode = 1
  }
  // Require bundle then call exported parseArgs to prove entry code evaluates; socket/token/PTY lifecycle belongs to smoke:orcad-terminal.
  // Assert exit code because minified exception text includes unrelated bundle strings.
  const daemonSmoke = spawnSync(
    process.execPath,
    [
      '-e',
      `const mod = require(${JSON.stringify(DAEMON_OUT_FILE)})\n` +
        `if (typeof mod.parseArgs !== 'function') { process.exit(3) }\n` +
        `try { mod.parseArgs([]); process.exit(4) } catch { process.exit(0) }`
    ],
    {
      encoding: 'utf8',
      timeout: 60_000,
      env: { ...process.env, ORCA_DAEMON_ENTRY_LOAD_CHECK: '1' }
    }
  )
  const daemonSmokeOutput = `${daemonSmoke.stdout ?? ''}${daemonSmoke.stderr ?? ''}`
  if (daemonSmoke.error || daemonSmoke.signal || daemonSmoke.status !== 0) {
    console.error(
      `[build-orcad] the daemon child lost Node load compatibility.\n` +
        `Expected a clean load check, got status=${daemonSmoke.status ?? 'none'} ` +
        `signal=${daemonSmoke.signal ?? 'none'} ` +
        `error=${daemonSmoke.error?.message ?? 'none'}\n${daemonSmokeOutput.slice(0, 2000)}`
    )
    process.exitCode = 1
  }
  const watcherFailure = nodeRuntimePath ? await smokeLoadWatcherChild(nodeRuntimePath) : null
  if (watcherFailure) {
    console.error(
      `[build-orcad] the watcher child failed under the bundled runtime.\n${watcherFailure}`
    )
    process.exitCode = 1
  }
}

/** @type {{ label: string, smoke: (outDir: string, options?: { runtimePath?: string }) => unknown }[]} */
const workerSmokes = [
  { label: 'profile state worker', smoke: smokeProfileStateWorkers },
  { label: 'foreign SQLite reader worker', smoke: smokeForeignSqliteReaderWorker },
  { label: 'session scanner service', smoke: smokeSessionScannerService }
]
// Each shipped child is checked under the build's Node and, when set, the pinned runtime.
for (const { label, smoke } of workerSmokes) {
  try {
    await smoke(OUT_DIR)
    if (nodeRuntimePath) {
      await smoke(OUT_DIR, { runtimePath: nodeRuntimePath })
    }
  } catch (error) {
    console.error(`[build-orcad] ${label} check failed:`, error)
    process.exitCode = 1
  }
}

// Remote install directories key by content hash; version alone would reuse install-complete directories with stale bytes.
if (process.exitCode !== 1) {
  const fullVersion = computeOrcadFullVersion(OUT_DIR, {
    target: BUILD_TARGET,
    agentBrowserFilename: AGENT_BROWSER_NAME
  })
  writeFileSync(join(OUT_DIR, ORCAD_VERSION_FILENAME), fullVersion)
  console.log(
    `[build-orcad] ok — ${fullVersion}, ${(output.bytes / 1024 / 1024).toFixed(2)} MB, ${Object.keys(output.inputs).length} modules, zero electron and node:sqlite imports, Node ${NODE_RUNTIME_PIN.version} referenced.`
  )
}

// Verify the shipped native watcher actually subscribes under the bundled runtime.
async function smokeLoadWatcherChild(runtimePath) {
  const probeDir = mkdtempSync(join(tmpdir(), 'orcad-watcher-smoke-'))
  const child = fork(WATCHER_OUT_FILE, [], {
    execPath: runtimePath,
    stdio: ['ignore', 'ignore', 'pipe', 'ipc'],
    windowsHide: true
  })
  let stderr = ''
  let subscribed = false
  child.stderr?.on('data', (chunk) => {
    stderr += String(chunk)
  })
  try {
    return await new Promise((resolve) => {
      const timer = setTimeout(() => {
        child.kill('SIGKILL')
        resolve(`Watcher did not complete its subscription within 30s.\n${stderr.slice(0, 2000)}`)
      }, 30_000)
      const settle = (failure) => {
        clearTimeout(timer)
        resolve(failure)
      }
      child.on('message', (message) => {
        subscribed ||= message?.op === 'subscribed'
        if (message?.op === 'subscribed' || message?.op === 'subscribe-failed') {
          child.disconnect()
        }
      })
      child.on('error', (error) => settle(`fork failed: ${error.message}`))
      // Disconnect exits 0; nonzero/signal before that is a load failure.
      child.on('exit', (code, signal) =>
        settle(
          code === 0 && subscribed
            ? null
            : `subscribed=${subscribed} exit code=${code} signal=${signal}\n${stderr.slice(0, 2000)}`
        )
      )
      child.send({ op: 'subscribe', id: 1, dir: probeDir, opts: {} })
    })
  } finally {
    rmSync(probeDir, { recursive: true, force: true })
  }
}