using StellaOps.Scheduler.Models;

namespace StellaOps.Scheduler.Models.Tests;

public sealed class ImpactSetTests
{
    [Fact]
    public void ImpactSetSortsImagesByDigest()
    {
        var selector = new Selector(SelectorScope.AllImages, tenantId: "tenant-alpha");
        var images = new[]
        {
            new ImpactImage(
                imageDigest: "sha256:bbbb",
                registry: "registry.internal",
                repository: "app/api",
                namespaces: new[] { "team-a" },
                tags: new[] { "prod", "latest" },
                usedByEntrypoint: true,
                labels: new Dictionary<string, string>
                {
                    ["env"] = "prod",
                }),
            new ImpactImage(
                imageDigest: "sha256:aaaa",
                registry: "registry.internal",
                repository: "app/api",
                namespaces: new[] { "team-a" },
                tags: new[] { "prod" },
                usedByEntrypoint: false),
        };

        var impactSet = new ImpactSet(
            selector,
            images,
            usageOnly: true,
            generatedAt: DateTimeOffset.Parse("2025-10-18T05:04:03Z"),
            total: 2,
            snapshotId: "snap-001");

        Assert.Equal(SchedulerSchemaVersions.ImpactSet, impactSet.SchemaVersion);
        Assert.Equal(new[] { "sha256:aaaa", "sha256:bbbb" }, impactSet.Images.Select(i => i.ImageDigest));
        Assert.True(impactSet.UsageOnly);
        Assert.Equal(2, impactSet.Total);

        var json = CanonicalJsonSerializer.Serialize(impactSet);
        Assert.Contains("\"snapshotId\":\"snap-001\"", json, StringComparison.Ordinal);
    }

    [Fact]
    public void ImpactImageRejectsInvalidDigest()
    {
        Assert.Throws<ArgumentException>(() => new ImpactImage("sha1:not-supported", "registry", "repo"));
    }
}