#include "scoring/yakus/outsidehand.h"

#include <vector>

#include "analysis/handnode.h"

#include "scoring/yakus.h"

#include "scoring/yakus/allterminalsandhonors.h"

#include "scoring/yakus/terminalsinallsets.h"

#include "types/gamestate.h"

#include "types/sets.h"

#include "types/yaku.h"

namespace mahjong::yaku {

bool isOutsideHand(const GameState& state, int player,

                   const std::vector<const mahjong::Node*>& branch) {

  bool chi = false;

  for (const auto* node : branch) {

    if (node->type() == SetType::kChi) {

      if (node->start().isTerminal() || (node->start() + 2).isTerminal()) {

        chi = true;

      } else {

        return false;

      }

    } else {

      if (!node->start().isTerminal() && !node->start().isHonor()) {

        return false;

      }

    }

  }

  for (const auto& meld : state.hands.at(player).melds) {

    if (meld.type == SetType::kChi) {

      if (meld.start.isTerminal() || (meld.start + 2).isTerminal()) {

        chi = true;

      } else {

        return false;

      }

    } else {

      if (!meld.start.isTerminal() && !meld.start.isHonor()) {

        return false;

      }

    }

  }

  // Terminals in all Sets and All Terminals and Honors are more valuable and score instead of Outside Hand.

  return chi && !isTerminalsInAllSets(state, player, branch) &&

         !isAllTerminalsAndHonors(state, player);

}

REGISTER_YAKU({

    .id = "outsidehand",

    .name = "Outside Hand",

    .type = Yaku::kBonusWhenClosed,

    .value = 1,

    .is_yaku_func = yaku::isOutsideHand,

});

}  // namespace mahjong::yaku