const test = require('node:test');
const assert = require('node:assert/strict');
const fs = require('node:fs/promises');
const path = require('node:path');
const os = require('node:os');
const tar = require('tar');
const bundle = require('../../cli/src/internal/maintenance/platformBundle.cjs');
const artifacts = require('../../shell/upgrade.cjs');
const {
  writeManifest,
  sourceCommit,
} = require('../helpers/upgrade-fixture.cjs');
const {
  releaseIndex,
  platforms,
} = require('../../scripts/publish-upgrade-bundles.cjs');

async function fixture(t) {
  const directory = await fs.mkdtemp(path.join(os.tmpdir(), 'ql-bundle-test-'));
  t.after(() => fs.rm(directory, { recursive: true, force: true }));
  const root = path.join(directory, 'installed'),
    tmp = path.join(root, '.tmp');
  const payload = path.join(directory, 'qinglong');
  const source = path.join(payload, 'source'),
    staticRoot = path.join(payload, 'static');
  await fs.mkdir(tmp, { recursive: true });
  await fs.mkdir(
    path.join(source, 'node_modules/.pnpm/sqlite/node_modules/sqlite3'),
    { recursive: true },
  );
  await fs.symlink(
    '.pnpm/sqlite/node_modules/sqlite3',
    path.join(source, 'node_modules/sqlite3'),
  );
  await fs.writeFile(
    path.join(source, 'node_modules/sqlite3/package.json'),
    '{"name":"sqlite3"}',
  );
  await fs.mkdir(path.join(source, 'sample'));
  await fs.writeFile(path.join(source, 'sample/config.sample.sh'), '# config');
  await fs.writeFile(
    path.join(source, 'package.json'),
    '{"version":"2.24.0","qinglongUpgradeFormat":2}',
  );
  await fs.writeFile(
    path.join(root, 'package.json'),
    '{"qinglongUpgradeFormat":2}',
  );
  await fs.mkdir(path.join(staticRoot, 'build'), { recursive: true });
  await fs.writeFile(path.join(staticRoot, 'build/app.js'), 'backend');
  writeManifest(source, staticRoot);
  const target = await bundle.runtimeTarget();
  const manifest = {
    format: 2,
    sourceCommit,
    lockfileSha256: bundle.sha256(
      await fs.readFile(path.join(source, 'pnpm-lock.yaml')),
    ),
    target: { ...target, libcMinimum: target.libcVersion },
    nodeMinimum: '20.18.1',
    nodeApi: 6,
    files: await bundle.inventory({ source, static: staticRoot }),
  };
  const archive = path.join(directory, 'package.tar.gz');
  const pack = async () => {
    await fs.writeFile(
      path.join(payload, 'bundle.json'),
      JSON.stringify(manifest),
    );
    await tar.c(
      {
        file: archive,
        cwd: directory,
        gzip: true,
        portable: true,
        noMtime: true,
      },
      ['qinglong'],
    );
  };
  await pack();
  return {
    directory,
    root,
    tmp,
    source,
    staticRoot,
    target,
    manifest,
    archive,
    pack,
  };
}

test('online and offline stage the same complete payload, preserve pnpm links and never install dependencies', async (t) => {
  const f = await fixture(t),
    bytes = await fs.readFile(f.archive),
    progress = [];
  const entry = {
    size: bytes.length,
    sha256: bundle.sha256(bytes),
    url: 'https://example.invalid/immutable.tar.gz',
  };
  let calls = 0,
    probes = 0;
  const run = async (program, args) => {
    assert.equal(program, 'curl');
    calls++;
    const output = args[args.indexOf('--output') + 1];
    if (args.at(-1).endsWith('latest.json'))
      await fs.writeFile(
        output,
        JSON.stringify({
          format: 2,
          sourceCommit,
          packages: { [bundle.targetKey(f.target)]: entry },
        }),
      );
    else {
      await fs.writeFile(output, bytes);
      await fs.writeFile(
        args[args.indexOf('--dump-header') + 1],
        'HTTP/2 200 OK\r\n\r\n',
      );
    }
  };
  const options = {
    root: f.root,
    tmp: f.tmp,
    env: { QL_BRANCH: 'develop' },
    run,
    verifyStatic: artifacts.verifyUpgrade,
    download: artifacts.downloadWithProgress,
    probe: async () => {
      probes++;
    },
    onProgress: async (p) => progress.push(p),
  };
  const online = await bundle.stageBundle(options);
  const first = await bundle.inventory(online);
  assert.equal(calls, 2);
  assert.equal(probes, 1);
  assert.ok(progress.some((p) => p.percent === 100));
  assert.ok(progress.some((p) => p.percent === 0));
  const offline = await bundle.stageBundle({
    ...options,
    env: { QL_BRANCH: 'develop', QL_UPGRADE_FILE: f.archive },
    run: () => assert.fail('offline network access'),
  });
  assert.equal(probes, 2);
  assert.deepEqual(await bundle.inventory(offline), first);
  assert.equal(
    await fs.readlink(path.join(offline.source, 'node_modules/sqlite3')),
    '.pnpm/sqlite/node_modules/sqlite3',
  );
  await assert.rejects(fs.access(online.source));
});

test('native target compatibility distinguishes ARMv6/ARMv7 and libc and retains the existing Node requirement', async (t) => {
  const f = await fixture(t),
    target = {
      platform: 'linux',
      arch: 'armv6',
      libc: 'musl',
      libcVersion: '1.2.5',
    };
  const manifest = {
    ...f.manifest,
    target: { ...target, libcMinimum: '1.2.4' },
  };
  bundle.assertCompatible(manifest, target, '20.20.2');
  assert.throws(
    () => bundle.assertCompatible(manifest, { ...target, arch: 'armv7' }),
    /platform mismatch/,
  );
  assert.throws(
    () => bundle.assertCompatible(manifest, { ...target, libc: 'glibc' }),
    /platform mismatch/,
  );
  assert.throws(
    () => bundle.assertCompatible(manifest, target, '18.20.0'),
    /requires Node/,
  );
  assert.throws(
    () =>
      bundle.assertCompatible(manifest, { ...target, libcVersion: '1.1.24' }),
    /requires musl/,
  );
});

test('dependency tampering and payload link escapes are rejected', async (t) => {
  const f = await fixture(t),
    selected = { source: f.source, static: f.staticRoot };
  await bundle.verifyPayload(selected, f.manifest, f.target);
  await fs.writeFile(
    path.join(f.source, 'node_modules/sqlite3/package.json'),
    '{"tampered":true}',
  );
  await assert.rejects(
    bundle.verifyPayload(selected, f.manifest, f.target),
    /checksums/,
  );
  await fs.symlink('/etc/passwd', path.join(f.source, 'outside'));
  await assert.rejects(bundle.inventory(selected), /escapes/);
});

test('archive traversal, absolute links and writes through internal symlinks are rejected before extraction', async (t) => {
  const f = await fixture(t),
    dest = path.join(f.directory, 'extract');
  await fs.mkdir(dest);
  await fs.symlink('/etc', path.join(f.directory, 'qinglong/bad'));
  await tar.c({ cwd: f.directory, file: f.archive, gzip: true }, [
    'qinglong/bad',
  ]);
  await assert.rejects(bundle.extractArchive(f.archive, dest), /symlink/);
  await tar.c(
    { cwd: f.directory, file: f.archive, gzip: true, prefix: '../outside' },
    ['qinglong/source/package.json'],
  );
  await assert.rejects(bundle.extractArchive(f.archive, dest), /Unsafe/);
  await fs.mkdir(path.join(f.directory, 'qinglong/real'));
  await fs.writeFile(path.join(f.directory, 'qinglong/real/file'), 'value');
  await fs.symlink('real', path.join(f.directory, 'qinglong/link'));
  await tar.c({ cwd: f.directory, file: f.archive, gzip: true }, [
    'qinglong/link',
    'qinglong/link/file',
  ]);
  await assert.rejects(
    bundle.extractArchive(f.archive, dest),
    /through a symlink/,
  );
  assert.deepEqual(await fs.readdir(dest), []);
});

test('an incomplete or corrupt platform download cannot replace an existing ready pointer', async (t) => {
  const f = await fixture(t),
    pointer = path.join(f.tmp, 'upgrade-ready-develop.json');
  await fs.writeFile(pointer, 'previous-ready');
  await assert.rejects(
    bundle.stageBundle({
      root: f.root,
      tmp: f.tmp,
      env: { QL_BRANCH: 'develop', QL_UPGRADE_FILE: f.archive },
      verifyStatic: artifacts.verifyUpgrade,
      probe: async () => {
        throw new Error('native addon failed');
      },
    }),
    /native addon failed/,
  );
  assert.equal(await fs.readFile(pointer, 'utf8'), 'previous-ready');
  assert.equal(
    (await fs.readdir(f.tmp)).filter((n) => n.startsWith('upgrade-')).length,
    1,
  );
});

test('publishing requires every platform and validates all immutable archive hashes', async (t) => {
  const f = await fixture(t),
    repository = 'whyour/qinglong';
  assert.throws(() => releaseIndex(f.directory, sourceCommit, repository));
  for (const target of platforms) {
    const filename = `qinglong-${sourceCommit}-${target}.tar.gz`,
      bytes = Buffer.from(target);
    await fs.writeFile(path.join(f.directory, filename), bytes);
    await fs.writeFile(
      path.join(f.directory, filename + '.json'),
      JSON.stringify({
        format: 2,
        sourceCommit,
        target,
        filename,
        size: bytes.length,
        sha256: bundle.sha256(bytes),
      }),
    );
  }
  const index = releaseIndex(f.directory, sourceCommit, repository);
  assert.equal(Object.keys(index.packages).length, 12);
  await fs.appendFile(
    path.join(f.directory, `qinglong-${sourceCommit}-${platforms[0]}.tar.gz`),
    'corrupt',
  );
  assert.throws(
    () => releaseIndex(f.directory, sourceCommit, repository),
    /Unverified/,
  );
});

test('fresh offline installation needs no package manager, keeps Node and publishes a complete directory', async (t) => {
  const f = await fixture(t);
  await fs.writeFile(path.join(f.source, '.env.example'), 'QlPort=5700\n');
  await fs.writeFile(path.join(f.source, 'version.yaml'), 'version: 2.24.0\n');
  await fs.writeFile(
    path.join(f.source, 'node_modules/sqlite3/index.js'),
    `exports.Database=class {serialize(fn){fn()}run(){}get(sql,cb){cb(null,{value:42})}close(){}};`,
  );
  for (const name of ['sequelize', 'cron-parser', '@grpc/grpc-js', 'undici']) {
    const dir = path.join(f.source, 'node_modules', name);
    await fs.mkdir(dir, { recursive: true });
    await fs.writeFile(path.join(dir, 'index.js'), 'module.exports={};');
  }
  f.manifest.files = await bundle.inventory({
    source: f.source,
    static: f.staticRoot,
  });
  await f.pack();
  const destination = path.join(f.directory, 'fresh'),
    node = process.execPath;
  await require('../../shell/install-bundle.cjs').installBundle(
    ['--root', destination, '--file', f.archive, '--install'],
    { ...process.env, PATH: '', QL_BRANCH: 'develop' },
  );
  assert.equal(process.execPath, node);
  assert.equal(
    await fs.readFile(path.join(destination, '.env'), 'utf8'),
    'QlPort=5700\n',
  );
  assert.equal(
    (await fs.stat(path.join(destination, '.env'))).mode & 0o777,
    0o600,
  );
  assert.equal(
    await fs.readFile(path.join(destination, 'static/build/app.js'), 'utf8'),
    'backend',
  );
  assert.ok(
    (
      await fs.stat(path.join(destination, 'node_modules/sqlite3/package.json'))
    ).isFile(),
  );
  assert.equal(
    (await fs.readdir(f.directory)).filter((n) =>
      n.startsWith('.qinglong-install-'),
    ).length,
    0,
  );
  await fs.writeFile(path.join(destination, 'keep-user-data'), 'keep');
  await assert.rejects(
    require('../../shell/install-bundle.cjs').installBundle([
      '--root',
      destination,
      '--file',
      f.archive,
      '--install',
    ]),
    /empty installation directory/,
  );
  assert.equal(
    await fs.readFile(path.join(destination, 'keep-user-data'), 'utf8'),
    'keep',
  );
});