// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

import 'package:amplify_datastore/amplify_datastore.dart';
import 'package:amplify_test/amplify_test.dart';
import 'package:amplify_test/test_models/ModelProvider.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  const MethodChannel dataStoreChannel =
      MethodChannel('com.amazonaws.amplify/datastore');

  AmplifyDataStore dataStore =
      AmplifyDataStore(modelProvider: ModelProvider.instance);

  final binding = TestWidgetsFlutterBinding.ensureInitialized();

  tearDown(() {
    binding.defaultBinaryMessenger
        .setMockMethodCallHandler(dataStoreChannel, null);
  });

  test('Saving a model without predicate executes successfully', () async {
    binding.defaultBinaryMessenger.setMockMethodCallHandler(
      dataStoreChannel,
      (MethodCall methodCall) async {
        if (methodCall.method == "save") {
          expect(
            methodCall.arguments,
            await getJsonFromFile(
                'save_api/request/instance_without_predicate.json'),
          );
        }
        return null;
      },
    );
    Post post = Post(
        id: '9fc5fab4-37ff-4566-97e5-19c5d58a4c22',
        title: 'New Post being saved',
        rating: 10,
        created: TemporalDateTime.fromString('2020-11-12T03:15:48+03:18'));
    await dataStore.save(post);
  });

  test(
      'A PlatformException for malformed request results in the corresponding DataStoreError',
      () async {
    binding.defaultBinaryMessenger.setMockMethodCallHandler(
      dataStoreChannel,
      (MethodCall methodCall) async {
        throw PlatformException(code: 'DataStoreException', details: {
          'message': 'Save failed for whatever known reason',
          'recoverySuggestion': 'some insightful suggestion',
          'underlyingException': 'Act of God'
        });
      },
    );
    expect(
        () => dataStore.save(Post(
            title: 'Test Post',
            rating: 10,
            created: TemporalDateTime.fromString("2020-02-20T20:20:20-08:00"))),
        throwsA(isA<DataStoreException>()
            .having((exception) => exception.message, 'message',
                'Save failed for whatever known reason')
            .having((exception) => exception.recoverySuggestion,
                'recoverySuggestion', 'some insightful suggestion')
            .having((exception) => exception.underlyingException,
                'underlyingException', 'Act of God')));
  });
}