C++ Hero REST API

Hero.h

#pragma once

#include <crow/json.h>
#include <string>
#include <optional>
#include <memory>

namespace models {

class Hero {
public:
    // Constructor with default values (C++20 designated initializers would be nice here)
    Hero() = default;
    ~Hero() = default;
    
    // Constructor from JSON (explicit prevents implicit conversions)
    explicit Hero(const crow::json::rvalue& json); 

    // Getters (const-correct, return by const ref to avoid copies)
    std::optional<int64_t> getId() const noexcept { return id_; }
    const std::string& getName() const noexcept { return name_; }
    const std::string& getSuperPower() const noexcept { return superPower_; }
    int getLevel() const noexcept { return level_; }

    // Setters (take by value to enable move semantics)
    void setId(int64_t id) noexcept { id_ = id; }
    void setName(std::string name) noexcept { name_ = std::move(name); }
    void setSuperPower(std::string power) noexcept { superPower_ = std::move(power); }
    void setLevel(int level) noexcept { level_ = level; }

    // Serialization (returns crow::json::wvalue for writing)
    crow::json::wvalue toJson() const;
    
    // Validation
    bool isValid() const noexcept;

private:
    std::optional<int64_t> id_;  // optional because it's set by DB
    std::string name_;
    std::string superPower_;
    int level_ = 1;
};

} // namespace models