ConfigFileJson.hpp

#pragma once
 
#include "util/config/ConfigFileInterface.hpp"
#include "util/config/Error.hpp"
#include "util/config/Types.hpp"
 
#include <boost/json/object.hpp>
 
#include <expected>
#include <filesystem>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
 
namespace util::config {

class ConfigFileJson final : public ConfigFileInterface {
    boost::json::object jsonObject_;
 
public:
    ConfigFileJson(boost::json::object jsonObj);

    [[nodiscard]] Value
    getValue(std::string_view key) const override;

    [[nodiscard]] std::vector<std::optional<Value>>
    getArray(std::string_view key) const override;

    [[nodiscard]] bool
    containsKey(std::string_view key) const override;

    [[nodiscard]] std::vector<std::string>
    getAllKeys() const override;

    [[nodiscard]] static std::expected<ConfigFileJson, Error>
    makeConfigFileJson(std::filesystem::path const& configFilePath);

    [[nodiscard]] boost::json::object const&
    inner() const;
 
private:
    void
    flattenJson(boost::json::object const& jsonRootObject);
};
 
}  // namespace util::config