//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
//
// 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)
//
#pragma once

#include "td/telegram/td_api.h"
#include "td/telegram/telegram_api.h"
#include "td/telegram/UserId.h"

#include "td/utils/common.h"
#include "td/utils/StringBuilder.h"

namespace td {

class Td;

class MessageReaction {
  string reaction_;
  int32 choose_count_ = 0;
  bool is_chosen_ = false;
  vector<UserId> recent_chooser_user_ids_;

  friend bool operator==(const MessageReaction &lhs, const MessageReaction &rhs);

  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageReaction &message_reaction);

 public:
  static constexpr size_t MAX_RECENT_CHOOSERS = 3;
  static constexpr int32 MAX_CHOOSE_COUNT = 2147483640;

  MessageReaction() = default;

  MessageReaction(string &&reaction, int32 choose_count, bool is_chosen, vector<UserId> &&recent_chooser_user_ids)
      : reaction_(std::move(reaction))
      , choose_count_(choose_count)
      , is_chosen_(is_chosen)
      , recent_chooser_user_ids_(std::move(recent_chooser_user_ids)) {
  }

  bool is_empty() const {
    return choose_count_ <= 0;
  }

  const string &get_reaction() const {
    return reaction_;
  }

  bool is_chosen() const {
    return is_chosen_;
  }

  void set_is_chosen(bool is_chosen) {
    is_chosen_ = is_chosen;
  }

  const vector<UserId> &get_recent_chooser_user_ids() const {
    return recent_chooser_user_ids_;
  }

  td_api::object_ptr<td_api::messageReaction> get_message_reaction_object(Td *td) const;

  template <class StorerT>
  void store(StorerT &storer) const;

  template <class ParserT>
  void parse(ParserT &parser);
};

bool operator==(const MessageReaction &lhs, const MessageReaction &rhs);

inline bool operator!=(const MessageReaction &lhs, const MessageReaction &rhs) {
  return !(lhs == rhs);
}

StringBuilder &operator<<(StringBuilder &string_builder, const MessageReaction &message_reaction);

struct MessageReactions {
  vector<MessageReaction> reactions_;
  bool is_min_ = false;
  bool need_polling_ = true;
  bool can_see_all_choosers_ = false;
  bool has_pending_reaction_ = false;
  string old_chosen_reaction_;

  MessageReactions() = default;

  static unique_ptr<MessageReactions> get_message_reactions(Td *td,
                                                            tl_object_ptr<telegram_api::messageReactions> &&reactions,
                                                            bool is_bot);

  void update_from(const MessageReactions &old_reactions);

  static bool need_update_message_reactions(const MessageReactions *old_reactions,
                                            const MessageReactions *new_reactions);

  template <class StorerT>
  void store(StorerT &storer) const;

  template <class ParserT>
  void parse(ParserT &parser);
};

}  // namespace td