Active/include/json_utils.h

#pragma once

#include <map>
#include <stdexcept>
#include <string>

namespace reginfo {

// Minimal JSON object for flat string key/value pairs.
// Supports only string values — sufficient for license data.
class JsonObject {
public:
    void set(const std::string& key, const std::string& value) { data_[key] = value; }

    std::string get(const std::string& key) const {
        auto it = data_.find(key);
        if (it == data_.end())
            throw std::runtime_error("Missing JSON key: " + key);
        return it->second;
    }

    std::string get(const std::string& key, const std::string& defaultValue) const {
        auto it = data_.find(key);
        return (it != data_.end()) ? it->second : defaultValue;
    }

    bool contains(const std::string& key) const {
        return data_.find(key) != data_.end();
    }

    // Parse from JSON string like {"key":"value",...}
    static JsonObject parse(const std::string& json);

    // Serialize to JSON string
    std::string dump(bool pretty = false) const;

    const std::map<std::string, std::string>& data() const { return data_; }

private:
    std::map<std::string, std::string> data_;
};

} // namespace reginfo