using System.Collections.Immutable;

namespace StellaOps.Scanner.EntryTrace;

public sealed record EntryTraceResult(
    string ScanId,
    string ImageDigest,
    DateTimeOffset GeneratedAtUtc,
    EntryTraceGraph Graph,
    ImmutableArray<string> Ndjson);

public interface IEntryTraceResultStore
{
    Task StoreAsync(EntryTraceResult result, CancellationToken cancellationToken);

    Task<EntryTraceResult?> GetAsync(string scanId, CancellationToken cancellationToken);
}

internal sealed class NullEntryTraceResultStore : IEntryTraceResultStore
{
    public Task StoreAsync(EntryTraceResult result, CancellationToken cancellationToken)
    {
        ArgumentNullException.ThrowIfNull(result);
        return Task.CompletedTask;
    }

    public Task<EntryTraceResult?> GetAsync(string scanId, CancellationToken cancellationToken)
    {
        ArgumentException.ThrowIfNullOrWhiteSpace(scanId);
        return Task.FromResult<EntryTraceResult?>(null);
    }
}