tdlight/td/telegram/ChatId.h
2022-01-01 03:35:39 +03:00

74 lines
1.6 KiB
C++

//
// 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/Version.h"
#include "td/utils/common.h"
#include "td/utils/StringBuilder.h"
#include <functional>
#include <type_traits>
namespace td {
class ChatId {
int64 id = 0;
public:
static constexpr int64 MAX_CHAT_ID = 999999999999ll;
ChatId() = default;
explicit ChatId(int64 chat_id) : id(chat_id) {
}
template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
ChatId(T chat_id) = delete;
bool is_valid() const {
return 0 < id && id <= MAX_CHAT_ID;
}
int64 get() const {
return id;
}
bool operator==(const ChatId &other) const {
return id == other.id;
}
bool operator!=(const ChatId &other) const {
return id != other.id;
}
template <class StorerT>
void store(StorerT &storer) const {
storer.store_long(id);
}
template <class ParserT>
void parse(ParserT &parser) {
if (parser.version() >= static_cast<int32>(Version::Support64BitIds)) {
id = parser.fetch_long();
} else {
id = parser.fetch_int();
}
}
};
struct ChatIdHash {
std::size_t operator()(ChatId chat_id) const {
return std::hash<int64>()(chat_id.get());
}
};
inline StringBuilder &operator<<(StringBuilder &string_builder, ChatId chat_id) {
return string_builder << "basic group " << chat_id.get();
}
} // namespace td