import assert from 'node:assert/strict'
import { spawnSync } from 'node:child_process'
import { chmodSync, existsSync, readFileSync } from 'node:fs'
import { dirname, join } from 'node:path'
import test from 'node:test'
import { fileURLToPath } from 'node:url'
import { cleanup, tempDir, write } from './helpers.mjs'

const here = dirname(fileURLToPath(import.meta.url))
const script = join(here, '..', 'install.sh')
const root = join(here, '..', '..')
const agentsSkills = join(root, '.agents', 'skills')
const NAMES = [
  'openspec-apply-change',
  'openspec-archive-change',
  'openspec-explore',
  'openspec-propose',
  'openspec-sync-specs',
  'openspec-update-change',
]

test('repository ships six agents skills for DSH', () => {
  assert.equal(readFileSync(join(agentsSkills, '.openspec-target'), 'utf8').trim(), 'agents')
  for (const name of NAMES) {
    const file = join(agentsSkills, name, 'SKILL.md')
    assert.ok(existsSync(file), `${name}/SKILL.md is missing`)
    const text = readFileSync(file, 'utf8')
    assert.match(text, new RegExp(`^name: ${name}$`, 'm'), `${name}: frontmatter name must match the dir`)
    assert.match(text, /description: .*openspec/i, `${name}: description must mention openspec`)
  }
})

test('install.sh --check reports the openspec CLI and the agents skills', () => {
  const home = tempDir()
  try {
    const bin = join(home, 'bin')
    write(join(bin, 'openspec'), '#!/bin/sh\n[ "$1" = "--version" ] && echo 1.13.1\nexit 0\n')
    chmodSync(join(bin, 'openspec'), 0o755)
    const env = { ...process.env, HOME: home, DSH_HOME: join(home, '.dsh'), PATH: `${bin}:${process.env.PATH}` }
    const run = spawnSync('bash', [script, '--check'], { env, encoding: 'utf8' })
    assert.equal(run.status, 0, run.stderr)
    assert.match(run.stdout, /ok: openspec 1\.13\.1/)
    assert.match(run.stdout, /ok: openspec agents skills \(/)
  } finally {
    cleanup(home)
  }
})

test('install.sh --check warns but does not fail without the openspec CLI', () => {
  const home = tempDir()
  try {
    const bin = join(home, 'bin')
    const env = { ...process.env, HOME: home, DSH_HOME: join(home, '.dsh'), PATH: bin }
    const run = spawnSync('bash', [script, '--check'], { env, encoding: 'utf8' })
    assert.match(run.stdout + run.stderr, /WARN: openspec not found/)
    assert.equal(run.status, 0)
  } finally {
    cleanup(home)
  }
})