using System.Reflection;
using Microsoft.Extensions.Logging.Abstractions;
using Microsoft.Extensions.Options;
using ZB.MOM.WW.ScadaBridge.ClusterInfrastructure;
using ZB.MOM.WW.ScadaBridge.Host;
using ZB.MOM.WW.ScadaBridge.Host.Actors;

namespace ZB.MOM.WW.ScadaBridge.Host.Tests;

public class BootstrapCancellationTests
{
    /// <summary>Verifies that a cancelled bootstrap neither resolves the actor system nor joins the cluster.</summary>
    /// <returns>A task that represents the asynchronous operation.</returns>
    [Fact]
    public async Task CancelledBootstrap_DoesNotResolveActorSystemOrJoin()
    {
        var accessed = 0;
        var coordinator = new ClusterBootstrapCoordinator(
            () => { accessed++; throw new InvalidOperationException("must not resolve during shutdown"); },
            Options.Create(new ClusterOptions { SeedNodes = ["akka.tcp://scadabridge@127.0.0.1:2551"] }),
            Options.Create(new NodeOptions { NodeHostname = "127.0.0.1", RemotingPort = 2551 }), NullLogger<ClusterBootstrapCoordinator>.Instance);
        var run = typeof(ClusterBootstrapCoordinator).GetMethod("RunAsync", BindingFlags.Instance | BindingFlags.NonPublic)!;
        await (Task)run.Invoke(coordinator, [new CancellationToken(true)])!;
        Assert.Equal(0, accessed);
    }
}