import 'package:fuel_tax_tracker/services/cloud/webdav_provider.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  final baseUrl = Uri.parse('https://cloud.example.com/');

  group('parseWebDavMultistatus', () {
    // Real WebDAV servers disagree on namespace prefix for the same "DAV:"
    // namespace — Nextcloud defaults to `d:`, many Apache mod_dav setups
    // use `D:`, and some use no prefix at all with a default xmlns. All
    // three must parse identically since the parser matches by local name.
    test('parses a lowercase d: prefixed response (Nextcloud-style)', () {
      final xml = '''<?xml version="1.0"?>
<d:multistatus xmlns:d="DAV:">
  <d:response>
    <d:href>/remote.php/dav/files/user/MO-Fuel-Tax-Back/</d:href>
    <d:propstat>
      <d:prop>
        <d:resourcetype><d:collection/></d:resourcetype>
        <d:getetag>&quot;abc123&quot;</d:getetag>
      </d:prop>
      <d:status>HTTP/1.1 200 OK</d:status>
    </d:propstat>
  </d:response>
  <d:response>
    <d:href>/remote.php/dav/files/user/MO-Fuel-Tax-Back/receipts/</d:href>
    <d:propstat>
      <d:prop>
        <d:resourcetype><d:collection/></d:resourcetype>
        <d:getetag>&quot;def456&quot;</d:getetag>
      </d:prop>
      <d:status>HTTP/1.1 200 OK</d:status>
    </d:propstat>
  </d:response>
  <d:response>
    <d:href>/remote.php/dav/files/user/MO-Fuel-Tax-Back/fuel_tax_tracker.db</d:href>
    <d:propstat>
      <d:prop>
        <d:resourcetype/>
        <d:getetag>&quot;ghi789&quot;</d:getetag>
      </d:prop>
      <d:status>HTTP/1.1 200 OK</d:status>
    </d:propstat>
  </d:response>
</d:multistatus>''';

      final entries = parseWebDavMultistatus(xml, baseUrl);

      expect(entries, hasLength(3));
      expect(entries[0].path, '/remote.php/dav/files/user/MO-Fuel-Tax-Back/');
      expect(entries[0].isCollection, isTrue);
      expect(entries[0].etag, '"abc123"');
      expect(entries[1].isCollection, isTrue);
      expect(entries[2].path, endsWith('fuel_tax_tracker.db'));
      expect(entries[2].isCollection, isFalse);
      expect(entries[2].etag, '"ghi789"');
    });

    test('parses an uppercase D: prefixed response identically', () {
      final xml = '''<?xml version="1.0"?>
<D:multistatus xmlns:D="DAV:">
  <D:response>
    <D:href>/dav/MO-Fuel-Tax-Back/</D:href>
    <D:propstat>
      <D:prop>
        <D:resourcetype><D:collection/></D:resourcetype>
        <D:getetag>"xyz111"</D:getetag>
      </D:prop>
      <D:status>HTTP/1.1 200 OK</D:status>
    </D:propstat>
  </D:response>
</D:multistatus>''';

      final entries = parseWebDavMultistatus(xml, baseUrl);

      expect(entries, hasLength(1));
      expect(entries.first.isCollection, isTrue);
      expect(entries.first.etag, '"xyz111"');
    });

    test('parses an unprefixed default-namespace response identically', () {
      final xml = '''<?xml version="1.0"?>
<multistatus xmlns="DAV:">
  <response>
    <href>/dav/MO-Fuel-Tax-Back/lock-file.lock</href>
    <propstat>
      <prop>
        <resourcetype/>
        <getetag>"lock999"</getetag>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
</multistatus>''';

      final entries = parseWebDavMultistatus(xml, baseUrl);

      expect(entries, hasLength(1));
      expect(entries.first.isCollection, isFalse);
      expect(entries.first.path, '/dav/MO-Fuel-Tax-Back/lock-file.lock');
    });

    test('a file with no getetag prop yields a null etag', () {
      final xml = '''<?xml version="1.0"?>
<d:multistatus xmlns:d="DAV:">
  <d:response>
    <d:href>/dav/no-etag.txt</d:href>
    <d:propstat>
      <d:prop>
        <d:resourcetype/>
      </d:prop>
      <d:status>HTTP/1.1 200 OK</d:status>
    </d:propstat>
  </d:response>
</d:multistatus>''';

      final entries = parseWebDavMultistatus(xml, baseUrl);

      expect(entries.single.etag, isNull);
    });
  });
}