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#ifndef SRC_INCLUDE_CONFIGURATOR_HPP
#define SRC_INCLUDE_CONFIGURATOR_HPP

#include <boost/program_options.hpp>
#include <fstream>
#include <istream>
#include <memory>
#include <string>
#include <vector>

namespace Nextsim {

class Configurator {
public:
    Configurator() = default;
    virtual ~Configurator() = default;

    inline static void addFile(const std::string& filename)
    {
        addStream(std::unique_ptr<std::istream>(new std::fstream(filename)));
    }

    template <typename C> static void addFiles(const C& container)
    {
        for (auto& filename : container)
            addFile(filename);
    }
    inline static void addStream(std::unique_ptr<std::istream> pis)
    {
        sources.push_back(std::move(pis));
    }
    template <typename C> static void addStreams(const C& container)
    {
        for (auto& stream : container) {
            addStream(stream);
        }
    }

    inline static void clearStreams() { sources.clear(); }

    inline static void clear()
    {
        clearStreams();
        setCommandLine(0, nullptr);
    }
    inline static void setCommandLine(int argc, char* argv[])
    {
        m_argc = argc;
        m_argv = argv;
    }
    static boost::program_options::variables_map parse(
        const boost::program_options::options_description& opt);

private:
    static std::vector<std::unique_ptr<std::istream>> sources;

    static int m_argc;
    static char** m_argv;
};

} /* namespace Nextsim */

#endif /* SRC_INCLUDE_CONFIGURATOR_HPP */