import 'package:halkyon_base_server/base.dart';
import 'package:test/test.dart';

void main() {
  group("Where the operator says the instance's data is", () {
    test("is a country's code or the European Union's", () {
      expect(dataLocationFrom('CH'), 'CH');
      expect(dataLocationFrom('EU'), 'EU');
    });

    test("is a subdivision's code (ISO 3166-2): a state, a canton, a "
        'region', () {
      expect(dataLocationFrom('US-CA'), 'US-CA');
      expect(dataLocationFrom('DE-BY'), 'DE-BY');
      expect(dataLocationFrom('GB-SCT'), 'GB-SCT');
      // Some countries number theirs.
      expect(dataLocationFrom('FR-75'), 'FR-75');
      expect(dataLocationFrom('JP-13'), 'JP-13');
    });

    test('is read in either case, around spaces', () {
      expect(dataLocationFrom(' ch '), 'CH');
      expect(dataLocationFrom(' us-ca '), 'US-CA');
    });

    test('is nothing where it is unset, empty or no code', () {
      expect(dataLocationFrom(null), isNull);
      expect(dataLocationFrom(''), isNull);
      expect(dataLocationFrom('Switzerland'), isNull);
      expect(dataLocationFrom('C1'), isNull);
      expect(dataLocationFrom('US-'), isNull);
      expect(dataLocationFrom('US-CALI'), isNull);
      expect(dataLocationFrom('US CA'), isNull);
      expect(dataLocationFrom('USA-CA'), isNull);
      expect(dataLocationFrom('EU-DE'), isNull);
    });

    test('is never "none": the data is somewhere', () {
      expect(dataLocationFrom('none'), isNull);
    });
  });

  group('Where the operator says its backups are', () {
    test("is a country's code, a subdivision's or the European Union's", () {
      expect(backupLocationFrom('ch'), 'CH');
      expect(backupLocationFrom('fi-18'), 'FI-18');
      expect(backupLocationFrom('EU'), 'EU');
    });

    test('may be none, in either case', () {
      expect(backupLocationFrom('none'), noBackups);
      expect(backupLocationFrom('NONE'), noBackups);
    });

    test('is nothing where it is unset, empty or no code', () {
      expect(backupLocationFrom(null), isNull);
      expect(backupLocationFrom(''), isNull);
      expect(backupLocationFrom('Hetzner'), isNull);
    });
  });
}