using Opc.Ua;
using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Client.Shared.Helpers;

namespace ZB.MOM.WW.OtOpcUa.Client.Shared.Tests.Helpers;

public class HistoryReadStatusTests
{
    public static IEnumerable<object[]> Refusals() => new[] { StatusCodes.BadHistoryOperationUnsupported,
        StatusCodes.BadUserAccessDenied, StatusCodes.BadNodeIdUnknown, StatusCodes.BadTimeout }.Select(s => new object[] { s });
    public static IEnumerable<object[]> NonRefusals() => new[] { StatusCodes.Good, StatusCodes.GoodNoData,
        StatusCodes.GoodMoreData, StatusCodes.UncertainNoCommunicationLastUsableValue, StatusCodes.BadNoData }.Select(s => new object[] { s });
    /// <summary>A refused read must surface, carrying the status code, rather than read as an empty result.</summary>
    /// <param name="code">The Bad per-node status code.</param>
    [Theory]
    [MemberData(nameof(Refusals))]
    public void Bad_status_throws_ServiceResultException_with_the_code(StatusCode code)
    {
        var ex = Should.Throw<ServiceResultException>(
            () => HistoryReadStatus.ThrowIfRefused(code, new NodeId("n", 2)));

        ex.StatusCode.ShouldBe(code.Code);
        ex.Message.ShouldContain("ns=2;s=n");
    }

    /// <summary>Good, GoodNoData, Uncertain and BadNoData are all non-refusals (the window may simply be empty).</summary>
    /// <param name="code">The non-refusal status code.</param>
    [Theory]
    [MemberData(nameof(NonRefusals))]
    public void Non_refusal_status_does_not_throw(StatusCode code)
    {
        Should.NotThrow(() => HistoryReadStatus.ThrowIfRefused(code, new NodeId("n", 2)));
    }
}