license_features.hpp

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#pragma once
 
#include <string>
#include <unordered_set>
#include <utils/log.hpp>
 
namespace license {

    class FeatureControl {
    public:
        void sendMetadataToClient() {
            if (hasFeature("API_SUPPORT")) {
                SQLOG_I("Sending metadata to client (feature: API_SUPPORT)");
            } else {
                SQLOG_I("API_SUPPORT feature not available. Skipping metadata transmission.");
            }
        }

        void setFeatures(const std::vector<std::string>& features) {
            m_features.clear();
            for (const auto& f : features) {
                m_features.insert(f);
                SQLOG_I("Enabled feature : %s", f.c_str());
            }
        }

        bool hasFeature(const std::string& key) const {
            return m_features.find(key) != m_features.end();
        }
 
    private:
        std::unordered_set<std::string> m_features; 
    };

    inline FeatureControl& getFeatureControl() {
        static FeatureControl instance;
        return instance;
    }

#define HAS_FEATURE(fkey) ::license::getFeatureControl().hasFeature(fkey)
 
} // namespace license // end of LicenseFeatures