using System;
using System.Collections.Generic;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using StellaOps.Scanner.Surface.FS;
using StellaOps.Zastava.Observer.Configuration;
using StellaOps.Zastava.Observer.Surface;
using Xunit;

namespace StellaOps.Zastava.Observer.Tests.Surface;

public sealed class RuntimeSurfaceFsClientTests
{
    [Fact]
    public async Task TryGetManifestAsync_ReturnsPublishedManifest()
    {
        var configuration = new ConfigurationBuilder()
            .AddInMemoryCollection(new Dictionary<string, string?>
            {
                [$"{ZastavaObserverOptions.SectionName}:runtimes:0:engine"] = "Containerd",
                [$"{ZastavaObserverOptions.SectionName}:backend:baseAddress"] = "https://scanner.internal"
            })
            .Build();

        var services = new ServiceCollection();
        services.AddLogging();
        services.AddZastavaObserver(configuration);

        using var provider = services.BuildServiceProvider();
        var manifestWriter = provider.GetRequiredService<ISurfaceManifestWriter>();
        var client = provider.GetRequiredService<IRuntimeSurfaceFsClient>();

        var document = new SurfaceManifestDocument
        {
            Tenant = "default",
            ImageDigest = "sha256:deadbeef",
            GeneratedAt = DateTimeOffset.UtcNow,
            Artifacts = new[]
            {
                new SurfaceManifestArtifact
                {
                    Kind = "entry-trace",
                    Uri = "cas://surface-cache/manifest/entry-trace",
                    Digest = "sha256:abc123",
                    MediaType = "application/json",
                    Format = "ndsjon"
                }
            }
        };

        var published = await manifestWriter.PublishAsync(document, default);
        var fetched = await client.TryGetManifestAsync(published.ManifestDigest, default);

        Assert.NotNull(fetched);
        Assert.Equal(document.Tenant, fetched!.Tenant);
        Assert.Equal(document.ImageDigest, fetched.ImageDigest);
    }
}