namespace TarninaHub.Application.Matchmaking;

/// <summary>
/// Combines semantic similarity with context signals (area, location) and
/// availability into a final 0..1 match score.
/// </summary>
public static class MatchScoring
{
    private const double ChallengeBoost = 0.10;
    private const double LocationBoost = 0.05;

    public static double Combine(
        double semanticScore,
        bool challengeMatch,
        bool locationMatch,
        bool available)
    {
        if (!available)
        {
            return 0;
        }

        var score = semanticScore;

        if (challengeMatch)
        {
            score += ChallengeBoost;
        }

        if (locationMatch)
        {
            score += LocationBoost;
        }

        return Math.Clamp(score, 0, 1);
    }
}