namespace Bff.Api;

/// <summary>
/// The public view of the read projection: filters rows by the openbaar search term and maps each to
/// a public-safe <see cref="OpenbaarEntry"/> (only <c>id</c> + <c>status</c> — bsn/naam never leave the
/// BFF). Pure so it is unit- and mutation-tested directly (ADR-0010).
/// </summary>
public static class OpenbaarProjection
{
    public static IReadOnlyList<OpenbaarEntry> PublicView(IReadOnlyList<ProjectionEntry> entries, string? q)
    {
        var filtered = string.IsNullOrWhiteSpace(q)
            ? entries
            : entries.Where(e =>
                e.Id.Contains(q, StringComparison.OrdinalIgnoreCase) ||
                (e.Reference?.Contains(q, StringComparison.OrdinalIgnoreCase) ?? false));

        return [.. filtered.Select(e => new OpenbaarEntry(e.Id, e.Status, e.Reference))];
    }
}