using SQLInsight.Core.Findings;
using SQLInsight.Core.Instances;
using SQLInsight.Rules.Engine;
using SQLInsight.Rules.Lifecycle;
using static SQLInsight.Rules.Tests.TestInstances;

namespace SQLInsight.Rules.Tests;

public class PatchLevelRuleTests
{
    private static readonly PatchLevelRule Rule = new(BuildCatalog.LoadEmbedded(), SupportLifecycleCatalog.LoadEmbedded());

    [Fact]
    public void Catalog_has_a_build_for_every_known_release()
    {
        var catalog = BuildCatalog.LoadEmbedded();

        foreach (var release in Enum.GetValues<SqlServerRelease>().Where(r => r is not (SqlServerRelease.Unknown or SqlServerRelease.AzureSqlManagedInstance)))
        {
            var latest = catalog.Latest(release);
            Assert.NotNull(latest);
            Assert.Equal(release, latest.Build.Release);
        }
    }

    [Fact]
    public void Current_build_passes()
    {
        Assert.Equal(RuleOutcome.Passed, Rule.Evaluate(Context("16.0.4295.3")).Outcome);
        Assert.Equal(RuleOutcome.Passed, Rule.Evaluate(Context("16.0.4300.1")).Outcome); // newer than the catalog
    }

    [Fact]
    public void Old_cu_on_supported_release_is_high()
    {
        var finding = Assert.Single(Rule.Evaluate(Context("15.0.4430.1")).Findings); // 2019 CU32 without 2026 security updates

        Assert.Equal(Severity.High, finding.Severity);
        Assert.Contains("KB5122772", finding.Recommendation, StringComparison.Ordinal);
        Assert.Contains("sikkerhedsopdatering", finding.Explanation, StringComparison.Ordinal);
    }

    [Fact]
    public void Missing_service_pack_on_unsupported_release_is_medium()
    {
        var finding = Assert.Single(Rule.Evaluate(Context("10.50.4000.0")).Findings); // 2008 R2 SP2

        Assert.Equal(Severity.Medium, finding.Severity);
        Assert.Contains("SP3", finding.Title, StringComparison.Ordinal);
    }

    [Fact]
    public void Old_catalog_is_called_out()
    {
        var finding = Assert.Single(Rule.Evaluate(Context("15.0.4430.1", new DateTimeOffset(2027, 6, 1, 0, 0, 0, TimeSpan.Zero))).Findings);

        Assert.Contains(finding.Evidence, e => e.Value.Contains("forældet", StringComparison.Ordinal));
    }
}