/** Offline alignment regression: never starts a model service or Claude CLI. */
import { build } from 'esbuild'
import { spawnSync } from 'node:child_process'
import { createRequire } from 'node:module'

const requireDom = process.argv.includes('--require-dom') || process.env.YCODE_TEST_REQUIRE_DOM === '1'
const domModule = process.env.YCODE_TEST_DOM_MODULE
if (requireDom && !domModule) {
  console.error('FAIL alignment DOM: set YCODE_TEST_DOM_MODULE to an installed jsdom module path; --require-dom / YCODE_TEST_REQUIRE_DOM=1 forbids skipping DOM tests.')
  process.exit(1)
}
if (domModule) {
  try {
    const { JSDOM } = createRequire(process.cwd() + '/package.json')(domModule)
    if (typeof JSDOM !== 'function') throw new Error('module does not export JSDOM')
  } catch (error) {
    console.error(`FAIL alignment DOM: cannot load YCODE_TEST_DOM_MODULE=${domModule}: ${error.message}`)
    process.exit(1)
  }
}

const tests = [
  'model-selection-alignment-regression.ts', 'model-settings-alignment-regression.ts', 'session-factory-alignment-regression.ts',
  'session-composer-alignment-regression.tsx', 'alignment-conversation-regression.tsx', 'question-answer-shell-regression.tsx',
  'runtime-authorization-regression.ts', 'permission-intercept-regression.tsx'
]
for (const file of tests) {
  const format = file.endsWith('.tsx') ? 'cjs' : 'esm'
  const outfile = `.tmp/alignment-tests/${file.replace(/\.tsx?$/, format === 'cjs' ? '.cjs' : '.mjs')}`
  await build({ entryPoints: [`scripts/${file}`], outfile, bundle: true, platform: 'node', format, external: ['esbuild'], jsx: 'automatic', loader: { '.css': 'empty' }, logLevel: 'warning' })
  const result = spawnSync(process.execPath, [outfile], { stdio: 'inherit', timeout: 120000 })
  if (result.error) throw result.error
  if (result.status !== 0) process.exit(result.status ?? 1)
}

// Host/SDK-interface fixtures; these builders stub query and never launch the CLI.
for (const file of ['scripts/build-runtime-regressions.mjs', '.tmp/claude-approval-policy-regression.mjs', '.tmp/claude-grant-replay-regression.mjs', 'scripts/build-b03-policy-regression.mjs', '.tmp/b03-policy-regression.mjs']) {
  const result = spawnSync(process.execPath, [file], { stdio: 'inherit', timeout: 120000 })
  if (result.error) throw result.error
  if (result.status !== 0) process.exit(result.status ?? 1)
}

// Optional DOM tests use separately installed jsdom, not Electron/CLI or an upstream model.
if (domModule) {
  for (const file of ['task-popconfirm-regression', 'question-interaction-regression', 'question-identity-regression', 'question-composer-dom-regression', 'completed-fold-nested-regression', 'completed-fold-native-identity-regression', 'permission-intercept-dom-regression', 'reasoning-follow-dom-regression']) {
    const outfile = `.tmp/alignment-tests/${file}.cjs`
    await build({ entryPoints: [`scripts/${file}.tsx`], outfile, bundle: true, platform: 'node', format: 'cjs', jsx: 'automatic', loader: { '.css': 'empty' }, logLevel: 'warning' })
    const result = spawnSync(process.execPath, [outfile], { stdio: 'inherit', timeout: 120000 })
    if (result.error) throw result.error
    if (result.status !== 0) process.exit(result.status ?? 1)
  }
  const modeChip = spawnSync(process.execPath, ['scripts/test-mode-chip.mjs'], { stdio: 'inherit', timeout: 120000 })
  if (modeChip.error) throw modeChip.error
  if (modeChip.status !== 0) process.exit(modeChip.status ?? 1)
}

console.log(JSON.stringify({ result: 'PASS', phase: 'alignment-offline', suites: tests.length + 3 }))
console.log(JSON.stringify(domModule
  ? { result: 'PASS', phase: 'alignment-dom', suites: 9 }
  : { result: 'SKIP', phase: 'alignment-dom', suites: 9, reason: 'YCODE_TEST_DOM_MODULE is not set; DOM coverage was not run. Use --require-dom to forbid this skip.' }))