#ifndef {header}_HEADER_H
#define {header}_HEADER_H

#include <string>
#include <memory>

namespace {cpp_namespace} \{

class flag_provider_interface \{
public:
    virtual ~flag_provider_interface() = default;
    {{ for item in class_elements}}
    virtual bool {item.flag_name}() = 0;
    {{ endfor }}
    virtual void override_flag(std::string const&, bool) \{}

    virtual void reset_overrides() \{}
};

extern std::unique_ptr<flag_provider_interface> provider_;
{{ for item in class_elements}}
extern std::string const {item.uppercase_flag_name};{{ endfor }}
{{ for item in class_elements}}
inline bool {item.flag_name}() \{
    {{ if for_prod }}
    {{ if not item.readwrite- }}
    return {item.default_value};
    {{ -else- }}
    return provider_->{item.flag_name}();
    {{ -endif }}
    {{ -else- }}
    return provider_->{item.flag_name}();
    {{ -endif }}
}
{{ endfor }}
inline void override_flag(std::string const& name, bool val) \{
    return provider_->override_flag(name, val);
}

inline void reset_overrides() \{
    return provider_->reset_overrides();
}

}
#endif