using StellaOps.AirGap.Bundle.Models;

namespace StellaOps.AirGap.Bundle.Services;

public sealed partial class SnapshotBundleWriter
{
    private static async Task WriteTrustRootsAsync(
        SnapshotBundleRequest request,
        string tempDir,
        List<BundleEntry> entries,
        KnowledgeSnapshotManifest manifest,
        CancellationToken cancellationToken)
    {
        if (request.TrustRoots is not { Count: > 0 })
        {
            return;
        }

        var trustDir = Path.Combine(tempDir, "trust");
        Directory.CreateDirectory(trustDir);

        foreach (var trustRoot in request.TrustRoots)
        {
            var filePath = Path.Combine(trustDir, trustRoot.FileName);
            await File.WriteAllBytesAsync(filePath, trustRoot.Content, cancellationToken).ConfigureAwait(false);

            var relativePath = $"trust/{trustRoot.FileName}";
            var digest = AddEntry(entries, relativePath, trustRoot.Content);

            manifest.TrustRoots.Add(new TrustRootSnapshotEntry
            {
                KeyId = trustRoot.KeyId,
                RelativePath = relativePath,
                Digest = digest,
                SizeBytes = trustRoot.Content.Length,
                Algorithm = trustRoot.Algorithm,
                ExpiresAt = trustRoot.ExpiresAt
            });
        }
    }
}