#!/usr/bin/env node
/**
 * Single-source POSIX dashboard from posix-compliance-matrix.json.
 * Run from pretest; commit docs/reference/posix-dashboard.md when the matrix changes.
 */
import fs from 'node:fs'
import path from 'node:path'
import process from 'node:process'
import { fileURLToPath } from 'node:url'

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..')
const matrixPath = path.join(root, 'docs/reference/posix-compliance-matrix.json')
const outPath = path.join(root, 'docs/reference/posix-dashboard.md')

function escCell(s) {
  return String(s).replace(/\|/g, '\\|').replace(/\n/g, ' ')
}

function main() {
  const matrix = JSON.parse(fs.readFileSync(matrixPath, 'utf8'))
  const rows = []
  const push = (area, key, value) => {
    rows.push(`| ${escCell(area)} | ${escCell(key)} | ${escCell(value)} |`)
  }
  push('Profile', 'profileId', matrix.profileId || '')
  push('Profile', 'schema', String(matrix.schema ?? ''))
  if (matrix.note) push('Profile', 'note', matrix.note)
  if (matrix.utilities && typeof matrix.utilities === 'object') {
    for (const [k, v] of Object.entries(matrix.utilities)) {
      push('Utilities', k, typeof v === 'string' ? v : JSON.stringify(v))
    }
  }
  if (matrix.shell && typeof matrix.shell === 'object') {
    for (const [k, v] of Object.entries(matrix.shell)) {
      push('Shell', k, typeof v === 'string' ? v : JSON.stringify(v))
    }
  }
  if (matrix.vfs && typeof matrix.vfs === 'object') {
    for (const [k, v] of Object.entries(matrix.vfs)) {
      push('VFS', k, typeof v === 'string' ? v : JSON.stringify(v))
    }
  }
  if (matrix.synthetic_proc && typeof matrix.synthetic_proc === 'object') {
    for (const [k, v] of Object.entries(matrix.synthetic_proc)) {
      if (k === 'paths' && Array.isArray(v)) {
        push('synthetic /proc', k, v.join(', '))
      } else {
        push(
          'synthetic /proc',
          k,
          typeof v === 'string' ? v : JSON.stringify(v)
        )
      }
    }
  }
  if (Array.isArray(matrix.commandIndex)) {
    for (const row of matrix.commandIndex) {
      if (!row || typeof row !== 'object') continue
      const name = String(row.name || '').trim()
      if (!name) continue
      const tier = String(row.tier || '').trim() || 'unspecified'
      push('Coreutils commandIndex', name, tier)
    }
  }

  const body = `# POSIX compliance dashboard (generated)

**Do not edit by hand.** Regenerated by \`scripts/gen-posix-dashboard.mjs\` (via \`npm run pretest\`).

Source: [\`docs/reference/posix-compliance-matrix.json\`](posix-compliance-matrix.json).

Normative narrative: [\`docs/architecture/POSIX_DECLARED_PROFILE.md\`](../architecture/POSIX_DECLARED_PROFILE.md), handbook ch.9, [\`docs/reference/environment-and-posix-appendix.md\`](environment-and-posix-appendix.md).

| Area | Key | Value |
| --- | --- | --- |
${rows.join('\n')}
`
  fs.mkdirSync(path.dirname(outPath), { recursive: true })
  fs.writeFileSync(outPath, body, 'utf8')
  process.stdout.write(`gen-posix-dashboard: wrote ${outPath}\n`)
}

main()