#!/usr/bin/env node
/**
 * Merge docs/bare-holepunch-catalog.json into bare-module-manifest.json and
 * sync bare-os-booter optionalDependencies for every included bare-* not
 * already listed in dependencies.
 *
 *   node scripts/sync-bare-module-manifest-from-catalog.mjs
 */
import { readFile, writeFile } from 'node:fs/promises'
import { dirname, join } from 'node:path'
import { fileURLToPath } from 'node:url'
import process from 'node:process'

import { manifestCtxKeyForPackage } from './gen-bare-holepunch-catalog.mjs'
import { generateBareModuleManifestData } from './generate-bare-module-manifest-data.mjs'

const __dirname = dirname(fileURLToPath(import.meta.url))
const root = join(__dirname, '..')
const catalogPath = join(root, 'docs', 'bare-holepunch-catalog.json')
const manifestPath = join(
  root,
  'packages/bare-os-booter/lib/bare-module-manifest.json'
)
const manifestDataPath = join(
  root,
  'packages/bare-os-booter/lib/bare-module-manifest.data.mjs'
)
const booterPkgPath = join(root, 'packages/bare-os-booter/package.json')
const ctxImportOverridesPath = join(__dirname, 'bare-ctx-import-overrides.json')

/** Fixed first rows: non-org + curated bare-* (order preserved). */
const BASE_ENTRIES = [
  {
    ctxKey: 'b4a',
    package: 'b4a',
    export: 'default',
    bundle: true,
    optional: false,
    nativeHint: false
  },
  {
    ctxKey: 'compactEncoding',
    package: 'compact-encoding',
    export: 'default',
    bundle: true,
    optional: false,
    nativeHint: false
  },
  {
    ctxKey: 'safetyCatch',
    package: 'safety-catch',
    export: 'default',
    bundle: true,
    optional: false,
    nativeHint: false
  },
  {
    ctxKey: 'hypercoreIdEncoding',
    package: 'hypercore-id-encoding',
    export: 'default',
    bundle: true,
    optional: false,
    nativeHint: false
  },
  {
    ctxKey: 'protomux',
    package: 'protomux',
    export: 'default',
    bundle: true,
    optional: false,
    nativeHint: false
  },
  {
    ctxKey: 'holesail',
    package: 'holesail',
    export: 'default',
    bundle: true,
    optional: false,
    nativeHint: false
  },
  {
    ctxKey: 'bareUrl',
    package: 'bare-url',
    export: 'default',
    bundle: false,
    optional: true,
    nativeHint: false,
    skipReason: 'Requires Bare global; host import on Pear/Bare only'
  },
  {
    ctxKey: 'barePath',
    package: 'bare-path',
    export: 'default',
    bundle: false,
    optional: true,
    nativeHint: false,
    skipReason: 'Requires Bare global; host import on Pear/Bare only'
  },
  {
    ctxKey: 'bareEncoding',
    package: 'bare-encoding',
    export: 'default',
    bundle: true,
    optional: true,
    nativeHint: false
  },
  {
    ctxKey: 'bareEvents',
    package: 'bare-events',
    export: 'default',
    bundle: true,
    optional: true,
    nativeHint: false
  },
  {
    ctxKey: 'fetch',
    package: 'bare-fetch',
    export: 'default',
    bundle: false,
    optional: true,
    nativeHint: true,
    skipReason: 'Native / runtime-specific deps; host import only'
  },
  {
    ctxKey: 'bareReadline',
    package: 'bare-readline',
    export: 'default',
    bundle: false,
    optional: true,
    nativeHint: false,
    skipReason: 'TTY integration; host import only'
  },
  {
    ctxKey: 'bareCrypto',
    package: 'bare-crypto',
    export: 'default',
    bundle: false,
    optional: true,
    nativeHint: true,
    skipReason: 'Native addon; host import only'
  }
]

const basePackages = new Set(BASE_ENTRIES.map((e) => e.package))

/** @param {Record<string, unknown>} raw */
function applyCtxImportOverrides(ent, npmName, raw) {
  const ns = new Set(
    Array.isArray(raw.namespaceExportPackages)
      ? raw.namespaceExportPackages
      : []
  )
  const se = new Set(
    Array.isArray(raw.sideEffectImportPackages)
      ? raw.sideEffectImportPackages
      : []
  )
  const sub =
    raw.packageImportSpecifiers &&
    typeof raw.packageImportSpecifiers === 'object'
      ? raw.packageImportSpecifiers
      : {}
  const out = { ...ent }
  if (ns.has(npmName)) out.export = '*'
  if (typeof sub[npmName] === 'string') out.package = sub[npmName]
  if (se.has(npmName)) out.sideEffectImport = true
  return out
}

function buildManifestEntries(catalog, importOverrides) {
  const byPackage = new Map(BASE_ENTRIES.map((e) => [e.package, { ...e }]))
  for (const row of catalog.entries || []) {
    if (!row.includedInBooter || !row.npmName) continue
    const name = row.npmName
    if (byPackage.has(name)) continue
    const ctxKey = row.manifestCtxKey || manifestCtxKeyForPackage(name)
    byPackage.set(name, {
      ctxKey,
      package: name,
      export: 'default',
      bundle: false,
      optional: true,
      nativeHint: true,
      skipReason:
        'Optional Holepunch bare-*; may be native, platform-specific, or Bare-only'
    })
  }
  const finalized = new Map()
  for (const [npmName, ent] of byPackage) {
    finalized.set(
      npmName,
      applyCtxImportOverrides(ent, npmName, importOverrides)
    )
  }
  const extras = [...finalized.entries()]
    .filter(([pkg]) => !basePackages.has(pkg))
    .map(([, ent]) => ent)
    .sort((a, b) => a.package.localeCompare(b.package))
  return [
    ...BASE_ENTRIES.map((e) => ({ ...finalized.get(e.package) })),
    ...extras
  ]
}

function mergeOptionalDeps(pkgJson, catalog) {
  const deps = pkgJson.dependencies || {}
  const have = new Set([
    ...Object.keys(deps),
    ...Object.keys(pkgJson.devDependencies || {})
  ])
  const opt = {}
  for (const row of catalog.entries || []) {
    if (!row.includedInBooter || !row.npmName || !row.npmVersion) continue
    const n = row.npmName
    if (have.has(n)) continue
    opt[n] = `^${row.npmVersion}`
  }
  const sorted = {}
  for (const k of Object.keys(opt).sort()) sorted[k] = opt[k]
  pkgJson.optionalDependencies = sorted
}

async function main() {
  let importOverrides = {}
  try {
    importOverrides = JSON.parse(await readFile(ctxImportOverridesPath, 'utf8'))
  } catch {
    /* optional */
  }
  const catalogRaw = await readFile(catalogPath, 'utf8')
  const catalog = JSON.parse(catalogRaw)
  const entries = buildManifestEntries(catalog, importOverrides)
  const keys = new Set()
  for (const e of entries) {
    if (keys.has(e.ctxKey)) throw new Error(`Duplicate ctxKey: ${e.ctxKey}`)
    keys.add(e.ctxKey)
  }
  /** Preserve curated ctx.pear rows; catalog sync only rewrites `entries`. */
  let pearEntries
  try {
    const prev = JSON.parse(await readFile(manifestPath, 'utf8'))
    if (Array.isArray(prev.pearEntries) && prev.pearEntries.length) {
      pearEntries = prev.pearEntries
    }
  } catch {
    /* first generate */
  }
  const manifest = pearEntries
    ? { version: 1, entries, pearEntries }
    : { version: 1, entries }
  await writeFile(
    manifestPath,
    JSON.stringify(manifest, null, 2) + '\n',
    'utf8'
  )
  await generateBareModuleManifestData({
    manifestPath,
    dataPath: manifestDataPath
  })

  const pkgRaw = await readFile(booterPkgPath, 'utf8')
  const pkgJson = JSON.parse(pkgRaw)
  mergeOptionalDeps(pkgJson, catalog)
  await writeFile(
    booterPkgPath,
    JSON.stringify(pkgJson, null, 2) + '\n',
    'utf8'
  )

  console.log(
    '[sync-bare-module-manifest] manifest entries=',
    entries.length,
    'optionalDependencies=',
    Object.keys(pkgJson.optionalDependencies || {}).length
  )
}

main().catch((e) => {
  console.error(e)
  process.exit(1)
})