namespace TarninaHub.Application.Text;

/// <summary>
/// Builds the canonical text used to compute an innovation embedding
/// (matchmaking, steps 14-15).
/// </summary>
public static class EmbeddingTextBuilder
{
    public static string Build(string title, string? summary, string? description, string? challengeName = null)
    {
        var parts = new List<string>();

        if (!string.IsNullOrWhiteSpace(title))
        {
            parts.Add(title.Trim());
        }

        if (!string.IsNullOrWhiteSpace(summary))
        {
            parts.Add(summary.Trim());
        }

        if (!string.IsNullOrWhiteSpace(description))
        {
            parts.Add(description.Trim());
        }

        if (!string.IsNullOrWhiteSpace(challengeName))
        {
            parts.Add(challengeName.Trim());
        }

        return string.Join("\n", parts);
    }
}