using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
using ZB.MOM.WW.OtOpcUa.Driver.Historian.Sql.Common;

namespace ZB.MOM.WW.OtOpcUa.Driver.Historian.QuestDb.IntegrationTests;

public sealed partial class TombstoneTests
{
    /// <summary>
    ///     The live writer's outbox redelivers batches (at-least-once). A batch replayed after an operator's
    ///     DeleteAtTime must not bring the deleted sample back: the writer's existence check counts a tombstone as
    ///     present (it deliberately does not filter <c>NOT deleted</c>), so the redelivered row is skipped.
    /// </summary>
    [Fact]
    public async Task Tombstone_is_not_resurrected_by_a_writer_redelivery()
    {
        fx.SkipIfUnavailable();
        var rig = UpdateTests.MakeRig(fx);
        var writer = new QuestDbHistorianValueWriter(rig.Conn, rig.Tags,
            new QuestDbWalVisibility(rig.Conn, TimeSpan.FromSeconds(5)));
        HistorizationValue[] batch =
        [
            new(T0, HistorianValue.FromDouble(1), HistorianStatusCodes.Good),
            new(T0.AddSeconds(1), HistorianValue.FromDouble(2), HistorianStatusCodes.Good),
        ];

        (await writer.WriteLiveValuesAsync("r", batch, default)).ShouldBeTrue();
        (await rig.Updater.DeleteAtTimeAsync("r", [T0], UpdateTests.Who, default)).ShouldBe([HistorianStatusCodes.Good]);
        (await writer.WriteLiveValuesAsync("r", batch, default)).ShouldBeTrue();   // the redelivery

        (await UpdateTests.RowsAsync(rig, "r", liveOnly: true)).Select(r => r.Num).ShouldBe([2d]);
        var all = await UpdateTests.RowsAsync(rig, "r");
        all.Count.ShouldBe(2);
        all[0].Deleted.ShouldBeTrue();
        all[0].Num.ShouldBeNull();
    }
}