import 'dart:convert';
import 'dart:io';

import 'package:flutter_test/flutter_test.dart';
import 'package:get_it/get_it.dart';
import 'package:holzleitner_api/holzleitner_api.dart';
import 'package:hl_lieferservice/data/network/backend_config.dart';
import 'package:hl_lieferservice/data/network/network_locator.dart';
import 'package:hl_lieferservice/data/network/backend_environment.dart';

void main() {
  ServerCatalog load() => ServerCatalog.fromJson(
        jsonDecode(File('assets/hl_server_config.json').readAsStringSync())
            as Map<String, dynamic>,
      );

  test('ausgelieferte Config enthält Produktion (Default) und Test', () {
    final catalog = load();

    expect(catalog.defaultEnvironment.id, 'production');
    expect(catalog.byId('production')!.hostAndPort, '192.168.1.9:3000');
    expect(catalog.byId('test')!.hostAndPort, '192.168.1.9:3001');
    expect(catalog.keycloakClientId, 'holzleitner-app');
  });

  test('configFor übernimmt Umgebung und globale Keycloak-Daten', () {
    final catalog = load();
    final config = catalog.configFor(catalog.byId('test')!);

    expect(config.apiBaseUrl, 'http://192.168.1.9:3001');
    expect(config.keycloakRedirectUrl, 'holzleitner://oauth2redirect');
  });

  test('unbekannte Default-Umgebung wird abgelehnt', () {
    expect(
      () => ServerCatalog.fromJson({
        'defaultEnvironment': 'nope',
        'keycloak': {'clientId': 'c', 'redirectUrl': 'r://x'},
        'environments': [
          {
            'id': 'a',
            'name': 'A',
            'apiBaseUrl': 'http://h:1/',
            'keycloakIssuerUrl': 'http://k/realms/x',
          },
        ],
      }),
      throwsFormatException,
    );
  });

  test('registerNetworking ersetzt beim Umgebungswechsel die Instanzen', () {
    TestWidgetsFlutterBinding.ensureInitialized();
    final catalog = load();
    final locator = GetIt.asNewInstance();

    registerNetworking(
      locator: locator,
      config: catalog.configFor(catalog.byId('production')!),
    );
    final firstApi = locator<HolzleitnerApi>();

    registerNetworking(
      locator: locator,
      config: catalog.configFor(catalog.byId('test')!),
    );

    expect(locator<BackendConfig>().apiBaseUrl, 'http://192.168.1.9:3001');
    expect(identical(locator<HolzleitnerApi>(), firstApi), isFalse);
    expect(locator<HolzleitnerApi>().dio.options.baseUrl,
        'http://192.168.1.9:3001');
  });
}