using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

namespace ZB.MOM.WW.OtOpcUa.Driver.Historian.Sql.Common.Tests;

/// <summary>The DB-free part of the former SQL Server integration <c>ProcessedReadTests</c>.</summary>
public sealed class ProcessedReadTests
{
    [Fact]
    public void Every_enum_member_is_either_served_or_refused()
    {
        // Seventeen served (#671 added TimeAverage, TimeAverage2, Interpolative and Total2, and moved Total to the
        // time-weighted family; #680 moved PercentGood/PercentBad there too — they are duration-based); anything appended to
        // the enum later falls to the refusal (total default).
        Enum.GetValues<HistoryAggregateType>().Count(a => AggregateFamilies.FamilyOf(a) is not null).ShouldBe(17);
        Enum.GetValues<HistoryAggregateType>().Where(a => AggregateFamilies.FamilyOf(a) == AggregateFamily.TimeWeighted)
            .ShouldBe([HistoryAggregateType.Total, HistoryAggregateType.Interpolative, HistoryAggregateType.TimeAverage,
                HistoryAggregateType.PercentGood, HistoryAggregateType.PercentBad, HistoryAggregateType.TimeAverage2,
                HistoryAggregateType.Total2]);
    }

    [Fact]
    public void Served_is_exactly_the_members_with_a_family()
    {
        // #682: the advertised set and the dispatch are one definition — a member is served iff it has a family.
        AggregateFamilies.Served.Count.ShouldBe(17);
        foreach (var a in Enum.GetValues<HistoryAggregateType>())
            AggregateFamilies.Served.Contains(a).ShouldBe(AggregateFamilies.FamilyOf(a) is not null, a.ToString());
    }
}