// package-shape.test.mjs
// Step 10 (A1): package.json-kontrakten for det bevisste zero-dep-bruddet.
// Verifiserer at dep-laget er EXACT-pinnet (ingen ^/~/*), at engines-gulvet er
// satt (unpdf krever node >= 22), at pakken er ESM (type: module), at versjonen
// er 1.7.0 (direkte maal-versjon, bumpes ikke separat), og at .npmrc slaar av
// install-scripts (Shai-Hulud / supply-chain). Zero npm deps i selve testen.
// Moenster: tests/frontmatter.test.mjs (les fil, assert struktur).

import { test } from 'node:test';
import assert from 'node:assert/strict';
import { readFileSync, existsSync } from 'node:fs';
import { join, dirname } from 'node:path';
import { fileURLToPath } from 'node:url';

const ROOT = join(dirname(fileURLToPath(import.meta.url)), '..');
const PKG = join(ROOT, 'package.json');
const NPMRC = join(ROOT, '.npmrc');
const LOCK = join(ROOT, 'package-lock.json');

// De fire pure-JS-konverterings-deps fra A0 pre-flight (audit 0 vulnerabilities).
const EXPECTED_DEPS = ['mammoth', 'turndown', 'postal-mime', 'unpdf'];

function readPkg() {
  return JSON.parse(readFileSync(PKG, 'utf8'));
}

test('package.json: type module + version 1.7.0 (direkte maal-versjon)', () => {
  const pkg = readPkg();
  assert.equal(pkg.type, 'module');
  assert.equal(pkg.version, '1.7.0');
});

test('package.json: engines.node-gulv satt (unpdf krever >= 22)', () => {
  const pkg = readPkg();
  assert.ok(pkg.engines && pkg.engines.node, 'engines.node mangler');
  assert.equal(pkg.engines.node, '>=22');
});

test('package.json: alle dependencies EXACT-pinnet (ingen ^/~/*)', () => {
  const pkg = readPkg();
  assert.ok(pkg.dependencies, 'dependencies mangler');
  for (const dep of EXPECTED_DEPS) {
    assert.ok(pkg.dependencies[dep], `dep mangler: ${dep}`);
  }
  for (const [name, version] of Object.entries(pkg.dependencies)) {
    assert.match(
      version,
      /^\d+\.\d+\.\d+$/,
      `dep ${name} er ikke exact-pinnet: ${version}`,
    );
  }
});

test('.npmrc: install-scripts avslaatt (supply-chain-vern)', () => {
  const npmrc = readFileSync(NPMRC, 'utf8');
  assert.match(npmrc, /^ignore-scripts\s*=\s*true$/m);
});

test('package-lock.json: finnes og pinner transitive deps med integrity', () => {
  assert.ok(existsSync(LOCK), 'package-lock.json mangler');
  const lock = JSON.parse(readFileSync(LOCK, 'utf8'));
  const entries = Object.entries(lock.packages ?? {}).filter(([k]) => k !== '');
  assert.ok(entries.length >= EXPECTED_DEPS.length, 'lockfile uten pakke-oppfoeringer');
  for (const [name, meta] of entries) {
    if (meta.link) continue;
    assert.ok(meta.integrity, `lockfile-oppfoering uten integrity: ${name}`);
    assert.match(meta.version ?? '', /^\d/, `lockfile-oppfoering uten versjon: ${name}`);
  }
});