import assert from 'node:assert/strict';
import fs from 'node:fs/promises';
import os from 'node:os';
import path from 'node:path';
import test from 'node:test';
import {
  createLocalMindSpaceStorageAdapter,
  normalizeMindSpaceStorageKey,
  resolveStoragePath,
} from './mindspace-storage-adapter.mjs';

test('normalizeMindSpaceStorageKey rejects absolute paths and traversal', () => {
  assert.equal(normalizeMindSpaceStorageKey('users/u1/file.txt'), 'users/u1/file.txt');
  assert.equal(normalizeMindSpaceStorageKey('users/u1/./file.txt'), 'users/u1/file.txt');

  for (const key of ['/tmp/file.txt', '../file.txt', 'users/../file.txt', 'C:/tmp/file.txt', 'a\\b']) {
    assert.throws(
      () => normalizeMindSpaceStorageKey(key),
      (error) => error.code === 'invalid_storage_key',
    );
  }
});

test('resolveStoragePath keeps object keys inside storage root', async () => {
  const root = await fs.mkdtemp(path.join(os.tmpdir(), 'mindspace-storage-root-'));
  const target = resolveStoragePath(root, 'users/u1/file.txt');

  assert.equal(target, path.join(root, 'users', 'u1', 'file.txt'));
  assert.throws(
    () => resolveStoragePath(root, '../outside.txt'),
    (error) => error.code === 'invalid_storage_key',
  );
});

test('local storage adapter writes, reads, stats, lists, copies, and deletes objects', async () => {
  const root = await fs.mkdtemp(path.join(os.tmpdir(), 'mindspace-storage-adapter-'));
  const adapter = createLocalMindSpaceStorageAdapter(root);

  const writeResult = await adapter.putObject('users/u1/conversations/s1/public/report.html', '<h1>Hi</h1>');
  assert.equal(writeResult.key, 'users/u1/conversations/s1/public/report.html');
  assert.equal(writeResult.sizeBytes, Buffer.byteLength('<h1>Hi</h1>'));

  const body = await adapter.getObject('users/u1/conversations/s1/public/report.html');
  assert.equal(body.toString('utf8'), '<h1>Hi</h1>');

  const stat = await adapter.statObject('users/u1/conversations/s1/public/report.html');
  assert.equal(stat.exists, true);
  assert.equal(stat.isDirectory, false);

  await adapter.copyObject(
    'users/u1/conversations/s1/public/report.html',
    'users/u1/conversations/s1/generated/report-copy.html',
  );

  assert.deepEqual(
    (await adapter.listObjects('users/u1/conversations/s1')).map((item) => item.key),
    [
      'users/u1/conversations/s1/generated/report-copy.html',
      'users/u1/conversations/s1/public/report.html',
    ],
  );

  await adapter.deleteObject('users/u1/conversations/s1/public/report.html');
  assert.equal((await adapter.statObject('users/u1/conversations/s1/public/report.html')).exists, false);
});

test('local storage adapter rejects signed URLs explicitly', async () => {
  const root = await fs.mkdtemp(path.join(os.tmpdir(), 'mindspace-storage-adapter-'));
  const adapter = createLocalMindSpaceStorageAdapter(root);

  await assert.rejects(
    () => adapter.getSignedUrl('users/u1/file.txt'),
    (error) => error.code === 'signed_url_not_supported',
  );
});