Result.hpp

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#pragma once
 
#include <chrono>
#include <cstddef> // IWYU pragma: keep - for size_t;
#include <libbenbot/eval/Score.hpp>
#include <libchess/moves/Move.hpp>
#include <libchess/moves/MoveGen.hpp>
#include <optional>
 
namespace chess::uci::printing {
struct SearchInfo;
} // namespace chess::uci::printing
 
namespace ben_bot::search {
 
using chess::moves::Move;
using chess::moves::MoveList;
using std::chrono::milliseconds;
using std::size_t;

struct [[nodiscard]] Result final {
    milliseconds duration { 0uz };

    size_t depth { 0uz };

    size_t qDepth { 0uz };

    eval::Score score;

    MoveList pv;

    size_t nodesSearched { 0uz };

    size_t transpositionTableHits { 0uz };

    size_t betaCutoffs { 0uz };

    size_t staticEvals { 0uz };

    size_t mdpCutoffs { 0uz };

    size_t hashfull { 0uz };

    [[nodiscard]] Move best_move() const { return pv.front(); }

    [[nodiscard]] std::optional<Move> ponder_move() const
    {
        if (pv.size() < 2uz)
            return std::nullopt;
 
        return pv.at(1uz);
    }

    using LibchessResult = chess::uci::printing::SearchInfo;

    [[nodiscard]] auto to_libchess(bool includeDebugInfo) const -> LibchessResult;
};
 
} // namespace ben_bot::search