namespace ClaudeDo.Ui.Services;

public sealed record RepoCandidate(string Name, string FullPath);

public static class RepoScanner
{
    public static IReadOnlyList<RepoCandidate> Scan(string parentFolder)
    {
        if (string.IsNullOrWhiteSpace(parentFolder) || !Directory.Exists(parentFolder))
            return Array.Empty<RepoCandidate>();

        var result = new List<RepoCandidate>();
        IEnumerable<string> subdirs;
        try { subdirs = Directory.EnumerateDirectories(parentFolder); }
        catch (Exception e) when (e is IOException or UnauthorizedAccessException)
        { return Array.Empty<RepoCandidate>(); }

        foreach (var dir in subdirs)
        {
            var gitPath = Path.Combine(dir, ".git");
            if (Directory.Exists(gitPath) || File.Exists(gitPath))
                result.Add(new RepoCandidate(Path.GetFileName(dir), dir));
        }
        return result;
    }
}