using Grpc.Core;
using Mishima.Nexus.Wire.V1;

namespace Robotico.Nexus.Client.Tests.TestSupport;

/// <summary>
/// In-memory fake standing in for a real Nexus relational engine host — only <c>Ping</c>, the sole
/// RPC used by <see cref="Robotico.Nexus.Client.Relational.NexusRelationalClient"/>.
/// </summary>
public sealed class FakeRelationalEngineService : NexusRelationalEngineService.NexusRelationalEngineServiceBase
{
    /// <inheritdoc />
    public override Task<RelationalPingResponse> Ping(RelationalPingRequest request, ServerCallContext context)
    {
        NexusStatus? failure = FakeNexusTriggers.TryStatusFailure(context);
        return Task.FromResult(new RelationalPingResponse { Status = failure ?? NexusStatuses.Ok, EngineVersion = "fake" });
    }
}