plantuml.txt

@startuml
class Server {
+explicit Server(unsigned short port)
+void run()
-private do_session(boost::asio::ip::tcp::socket socket)
}

abstract class AbstractPage {
+explicit AbstractPage(const std::shared_ptr<http::request<http::string_body>>& request)
+http::response<http::string_body> getResponse()
}

class IndexPage {
}

class LockControl {
}

class Flats {
}

class Login {
}

class UserPage {
}

class AddFlat {
}

class FlatPage {
}

class RentAFlat {
}

class DBHelper {
-private _connection: pqxx::connection*
+DBHelper(std::string host, std::string port, std::string dbname, std::string user, std::string password)
+~DBHelper()
+void saveFlat(std::unique_ptr<FLat> flatItem);
+void updateFlat(size_t flatId, std::unique_ptr<FLat> flatItemUp);
+FLat getFlat(size_t flatId);
+std::vector<FLat> getFlatsList(size_t offset, size_t amount);
+void saveLock(std::unique_ptr<SmartLock> lockItem);
+SmartLock getLock(size_t lockId);
+void updateLock(size_t lockId, std::unique_ptr<SmartLock> slItem);
+User getUser(size_t userId);
+void saveUser(std::unique_ptr<User> userItem);
+void updateUser(size_t userId, std::unique_ptr<User> userItemUp
}

class FLat {
-private
    -unsigned short _priceFlat
    -unsigned short _squareFlat
    -size_t _idFlat
    -size_t _idUserOwner
    -std::string _address
    -std::string _description
    +bool isTaken() const
+public
    +FLat(unsigned short priceFlat, unsigned short squareFlat, size_t idFlat, size_t idUserOwner, std::string address, std::string description)
    +boost::property_tree::ptree getJson() const
}

class SmartLock {
-private
    -size_t _id
    -bool _isOpen
+public
    +void open()
    +void close()
    +bool is_open()
}

class Registration {
-private:
    -std::string hash_password(const std::string& password)
    -std::string generate_uuid()
    -std::string db_path_;
+public:
    +Registration(const std::string& db_path) : db_path_(db_path)
    +bool register_user(const std::string& username, const std::string& password)
}

class User {
-private:
    -size_t _id;
    -std::string _nameUser, _secondName, _phoneNumber, _mail;

    -std::vector<std::string> flatsHands();
    -std::vector<std::string> flatsRent();

}

Server -> AbstractPage
AbstractPage <|-- IndexPage
AbstractPage <|-- LockControl
AbstractPage <|-- Flats
AbstractPage <|-- Login
AbstractPage <|-- UserPage
AbstractPage <|-- AddFlat
AbstractPage <|-- FlatPage
AbstractPage <|-- RentAFlat
@enduml