using System;
using System.Net;
using System.Net.Http.Json;
using System.Threading.Tasks;
using StellaOps.Scanner.WebService.Contracts;
using Xunit;

namespace StellaOps.Scanner.WebService.Tests;

public sealed partial class ScansEndpointsTests
{
    [Fact]
    public async Task EntropyEndpoint_AttachesSnapshot_AndSurfacesInStatus()
    {
        using var secrets = new TestSurfaceSecretsScope();
        using var factory = new ScannerApplicationFactory().WithOverrides(cfg =>
        {
            cfg["scanner:authority:enabled"] = "false";
            cfg["scanner:authority:allowAnonymousFallback"] = "true";
        });

        using var client = factory.CreateClient();

        var submitResponse = await client.PostAsJsonAsync("/api/v1/scans", new
        {
            image = new { digest = "sha256:image-demo" }
        });
        submitResponse.EnsureSuccessStatusCode();

        var submit = await submitResponse.Content.ReadFromJsonAsync<ScanSubmitResponse>();
        Assert.NotNull(submit);

        var entropyPayload = new EntropyIngestRequest(
            ImageOpaqueRatio: 0.42,
            Layers: new[]
            {
                new EntropyLayerRequest("sha256:layer-demo", 0.35, 3500, 10_000)
            });

        var attachResponse = await client.PostAsJsonAsync($"/api/v1/scans/{submit!.ScanId}/entropy", entropyPayload);
        Assert.Equal(HttpStatusCode.Accepted, attachResponse.StatusCode);

        var status = await client.GetFromJsonAsync<ScanStatusResponse>($"/api/v1/scans/{submit.ScanId}");
        Assert.NotNull(status);
        Assert.NotNull(status!.Entropy);
        Assert.Equal(0.42, status.Entropy!.ImageOpaqueRatio, 3);
        Assert.Single(status.Entropy!.Layers);
        var layer = status.Entropy!.Layers[0];
        Assert.Equal("sha256:layer-demo", layer.LayerDigest);
        Assert.Equal(0.35, layer.OpaqueRatio, 3);
        Assert.Equal(3500, layer.OpaqueBytes);
        Assert.Equal(10_000, layer.TotalBytes);
    }
}