using System.Text.Json;
using NUnit.Framework;
using ShrinkSDK.Inspect;
using Index = ShrinkSDK.Inspect.Index;

public class IdentityTests
{
    [TestCase("a", true)] [TestCase("b", false)] [TestCase("", false)]
    public void SnapshotNeedsMatchingVerifiedBuild(string build, bool accepted)
    {
        var path = Path.GetTempFileName();
        try
        {
            File.WriteAllText(path, "{\"BuildId\":\"a\",\"Relations\":[{\"From\":\"type:Request\",\"To\":\"M:Handler.Run\",\"Kind\":\"handler\",\"Scope\":\"server\"}]}");
            var index = new Index { BuildId = build };
            InspectCommand.AttachSnapshot(index, path);
            Assert.That(index.Relations.Count, Is.EqualTo(accepted ? 1 : 0));
            if (accepted) Assert.That(index.Relations[0].Evidence, Is.EqualTo("runtime-bound"));
            else Assert.That(index.Coverage, Is.Not.Empty);
        }
        finally { File.Delete(path); }
    }

    [Test]
    public async Task ChangedSourceInvalidatesRuntimeMerge()
    {
        var dir = Path.Combine(Path.GetTempPath(), "ShrinkInspectIdentity", Guid.NewGuid().ToString("N")); Directory.CreateDirectory(dir);
        try
        {
            var source = Path.Combine(dir, "A.cs"); File.WriteAllText(source, "class A {}");
            var manifest = new CompilationManifest { Root = dir, BuildId = "a", Assemblies = [new() { Name = "A", Sources = [source] }], SourceTicks = new() { [source] = 0 } };
            var path = Path.Combine(dir, "compilation.json"); File.WriteAllText(path, JsonSerializer.Serialize(manifest));
            var index = new Index { Root = dir };
            await SemanticIndex.Build(index, path, null);
            Assert.That(index.BuildId, Is.Empty);
            Assert.That(index.Coverage.Any(c => c.Contains("Stale")));
        }
        finally { Directory.Delete(dir, true); }
    }
    [Test]
    public void MatchingSnapshotExposesBoundedStateItems()
    {
        var path = Path.GetTempFileName();
        try
        {
            File.WriteAllText(path, """{"BuildId":"a","State":{"app":{"Fibers":[{"Name":"wait","Status":"Waiting"},{"Name":"ready","Status":"Active"}]}}} """);
            var index = new Index { BuildId = "a" }; InspectCommand.AttachSnapshot(index, path);
            Assert.That(index.RuntimeStates.Count, Is.EqualTo(2));
            Assert.That(index.RuntimeStates[0].Value.GetProperty("Name").GetString(), Is.EqualTo("wait"));
        }
        finally { File.Delete(path); }
    }

}