// Copyright 2026 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

using System.Threading.Tasks;
using Xunit;

[Collection(nameof(SpannerFixture))]
public class IsolationLevelAsyncTest
{
    private readonly SpannerFixture _spannerFixture;

    public IsolationLevelAsyncTest(SpannerFixture spannerFixture)
    {
        _spannerFixture = spannerFixture;
    }

    [Fact]
    public async Task TestIsolationLevelAsync()
    {
        const string createSingersTable =
            @"CREATE TABLE Singers (
                SingerId INT64 NOT NULL,
                FirstName STRING(1024),
                LastName STRING(1024),
                ComposerInfo BYTES(MAX),
                FullName STRING(2048) AS (ARRAY_TO_STRING([FirstName, LastName], "" "")) STORED
            ) PRIMARY KEY (SingerId)";
        const string createAlbumsTable =
            @"CREATE TABLE Albums (
                SingerId INT64 NOT NULL,
                AlbumId INT64 NOT NULL,
                AlbumTitle STRING(MAX)
            ) PRIMARY KEY (SingerId, AlbumId),
            INTERLEAVE IN PARENT Singers ON DELETE CASCADE";

        await _spannerFixture.RunWithTemporaryDatabaseAsync(async databaseId =>
        {
            // 1. Insert some data
            InsertDataAsyncSample insertDataAsyncSample = new InsertDataAsyncSample();
            await insertDataAsyncSample.InsertDataAsync(_spannerFixture.ProjectId, _spannerFixture.InstanceId, databaseId);

            // 2. Run the IsolationLevel sample
            IsolationLevelAsyncSample sample = new IsolationLevelAsyncSample();
            await sample.IsolationLevelAsync(_spannerFixture.ProjectId, _spannerFixture.InstanceId, databaseId);
        }, createSingersTable, createAlbumsTable);
    }
}
