//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2026
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/GameManager.h"

#include "td/telegram/AccessRights.h"
#include "td/telegram/AuthManager.h"
#include "td/telegram/ChainId.h"
#include "td/telegram/DialogId.h"
#include "td/telegram/DialogManager.h"
#include "td/telegram/Global.h"
#include "td/telegram/MessageId.h"
#include "td/telegram/MessagesManager.h"
#include "td/telegram/Td.h"
#include "td/telegram/telegram_api.h"
#include "td/telegram/UpdatesManager.h"
#include "td/telegram/UserManager.h"

#include "td/utils/buffer.h"
#include "td/utils/logging.h"
#include "td/utils/Status.h"

namespace td {

class SetGameScoreQuery final : public Td::ResultHandler {
  Promise<Unit> promise_;
  DialogId dialog_id_;

 public:
  explicit SetGameScoreQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
  }

  void send(DialogId dialog_id, MessageId message_id, bool edit_message,
            tl_object_ptr<telegram_api::InputUser> input_user, int32 score, bool force) {
    dialog_id_ = dialog_id;

    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Edit);
    if (input_peer == nullptr) {
      return on_error(Status::Error(400, "Can't access the chat"));
    }

    CHECK(input_user != nullptr);
    send_query(G()->net_query_creator().create(
        telegram_api::messages_setGameScore(0, edit_message, force, std::move(input_peer),
                                            message_id.get_server_message_id().get(), std::move(input_user), score),
        {{dialog_id}}));
  }

  void on_result(BufferSlice packet) final {
    auto result_ptr = fetch_result<telegram_api::messages_setGameScore>(packet);
    if (result_ptr.is_error()) {
      return on_error(result_ptr.move_as_error());
    }

    auto ptr = result_ptr.move_as_ok();
    LOG(INFO) << "Receive result for SetGameScore: " << to_string(ptr);
    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
  }

  void on_error(Status status) final {
    LOG(INFO) << "Receive error for SetGameScoreQuery: " << status;
    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SetGameScoreQuery");
    promise_.set_error(std::move(status));
  }
};

class GetGameHighScoresQuery final : public Td::ResultHandler {
  Promise<td_api::object_ptr<td_api::gameHighScores>> promise_;
  DialogId dialog_id_;

 public:
  explicit GetGameHighScoresQuery(Promise<td_api::object_ptr<td_api::gameHighScores>> &&promise)
      : promise_(std::move(promise)) {
  }

  void send(DialogId dialog_id, MessageId message_id, tl_object_ptr<telegram_api::InputUser> input_user) {
    dialog_id_ = dialog_id;

    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
    CHECK(input_peer != nullptr);

    CHECK(input_user != nullptr);
    send_query(G()->net_query_creator().create(telegram_api::messages_getGameHighScores(
        std::move(input_peer), message_id.get_server_message_id().get(), std::move(input_user))));
  }

  void on_result(BufferSlice packet) final {
    auto result_ptr = fetch_result<telegram_api::messages_getGameHighScores>(packet);
    if (result_ptr.is_error()) {
      return on_error(result_ptr.move_as_error());
    }

    promise_.set_value(td_->game_manager_->get_game_high_scores_object(result_ptr.move_as_ok()));
  }

  void on_error(Status status) final {
    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetGameHighScoresQuery");
    promise_.set_error(std::move(status));
  }
};

GameManager::GameManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
}

GameManager::~GameManager() = default;

void GameManager::tear_down() {
  parent_.reset();
}

void GameManager::set_game_score(MessageFullId message_full_id, bool edit_message, UserId user_id, int32 score,
                                 bool force, Promise<td_api::object_ptr<td_api::message>> &&promise) {
  CHECK(td_->auth_manager_->is_bot());

  auto dialog_id = message_full_id.get_dialog_id();
  TRY_STATUS_PROMISE(promise,
                     td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Edit, "set_game_score"));
  if (!td_->messages_manager_->have_message_force(message_full_id, "set_game_score")) {
    return promise.set_error(400, "Message not found");
  }

  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));

  if (!td_->messages_manager_->can_set_game_score(message_full_id)) {
    return promise.set_error(400, "Game score can't be set");
  }

  auto query_promise = PromiseCreator::lambda(
      [actor_id = actor_id(this), message_full_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
        if (result.is_error()) {
          return promise.set_error(result.move_as_error());
        }
        send_closure(actor_id, &GameManager::on_set_game_score, message_full_id, std::move(promise));
      });
  td_->create_handler<SetGameScoreQuery>(std::move(query_promise))
      ->send(dialog_id, message_full_id.get_message_id(), edit_message, std::move(input_user), score, force);
}

void GameManager::on_set_game_score(MessageFullId message_full_id,
                                    Promise<td_api::object_ptr<td_api::message>> &&promise) {
  promise.set_value(td_->messages_manager_->get_message_object(message_full_id, "on_set_game_score"));
}

void GameManager::get_game_high_scores(MessageFullId message_full_id, UserId user_id,
                                       Promise<td_api::object_ptr<td_api::gameHighScores>> &&promise) {
  CHECK(td_->auth_manager_->is_bot());

  auto dialog_id = message_full_id.get_dialog_id();
  TRY_STATUS_PROMISE(
      promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "get_game_high_scores"));

  if (!td_->messages_manager_->have_message_force(message_full_id, "get_game_high_scores")) {
    return promise.set_error(400, "Message not found");
  }

  auto message_id = message_full_id.get_message_id();
  if (message_id.is_scheduled() || !message_id.is_server()) {
    return promise.set_error(400, "Wrong message identifier specified");
  }

  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));

  td_->create_handler<GetGameHighScoresQuery>(std::move(promise))->send(dialog_id, message_id, std::move(input_user));
}

td_api::object_ptr<td_api::gameHighScores> GameManager::get_game_high_scores_object(
    telegram_api::object_ptr<telegram_api::messages_highScores> &&high_scores) {
  td_->user_manager_->on_get_users(std::move(high_scores->users_), "get_game_high_scores_object");

  auto result = td_api::make_object<td_api::gameHighScores>();
  for (const auto &high_score : high_scores->scores_) {
    int32 position = high_score->pos_;
    UserId user_id(high_score->user_id_);
    int32 score = high_score->score_;
    if (position <= 0 || !user_id.is_valid() || score < 0) {
      LOG(ERROR) << "Receive wrong " << to_string(high_score);
      continue;
    }
    result->scores_.push_back(make_tl_object<td_api::gameHighScore>(
        position, td_->user_manager_->get_user_id_object(user_id, "get_game_high_scores_object"), score));
  }
  return result;
}

}  // namespace td
