using System.Runtime.Versioning;
using AVEVA.Historian.Client.Wcf;

namespace AVEVA.Historian.Client.Tests;

[SupportedOSPlatform("windows")]
public sealed class HistorianSspiClientTests
{
    [Fact]
    public void NativeFlagsRound0_MatchesDocumentedNativeWrapperValue()
    {
        Assert.Equal(0x2081C, HistorianSspiClient.NativeFlagsRound0);
    }

    [Fact]
    public void NativeFlagsRoundSubsequent_MatchesDocumentedNativeWrapperValue()
    {
        Assert.Equal(0x81C, HistorianSspiClient.NativeFlagsRoundSubsequent);
    }

    [Fact]
    public void Round0FlagsIncludeIdentify_LaterRoundsDoNot()
    {
        Assert.Equal(HistorianSspiClient.IscReqIdentify, HistorianSspiClient.NativeFlagsRound0 & HistorianSspiClient.IscReqIdentify);
        Assert.Equal(0, HistorianSspiClient.NativeFlagsRoundSubsequent & HistorianSspiClient.IscReqIdentify);
    }

    [Fact]
    public void AllRoundsRequestReplayAndSequenceDetection()
    {
        const int both = HistorianSspiClient.IscReqReplayDetect | HistorianSspiClient.IscReqSequenceDetect;
        Assert.Equal(both, HistorianSspiClient.NativeFlagsRound0 & both);
        Assert.Equal(both, HistorianSspiClient.NativeFlagsRoundSubsequent & both);
    }

    [Fact]
    public void SelectRequestFlags_DispatchesByRoundIndex()
    {
        Assert.Equal(HistorianSspiClient.NativeFlagsRound0, HistorianSspiClient.SelectRequestFlags(0));
        Assert.Equal(HistorianSspiClient.NativeFlagsRoundSubsequent, HistorianSspiClient.SelectRequestFlags(1));
        Assert.Equal(HistorianSspiClient.NativeFlagsRoundSubsequent, HistorianSspiClient.SelectRequestFlags(7));
    }
}