xoutput.h

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#pragma once

#include "xconfig.h"
#include "xerror.h"
#include "xfmt.h"
#include <fstream>

namespace nmx {

class Output
{
public:
    inline static const Format latex{ "table", "&", "\\\\\n", "tex" };
    inline static const Format plot{ "plot", ",", "\n", "csv" };
    inline static const Format terminal{ "terminal", "\t", "\n", "out" };
    inline static const Format csv{ "csv", ",", "\n", "csv" };

    static std::ofstream get_stream(const std::string &fname) {
        std::ofstream _ofs(fname.c_str());
        if (!_ofs) {
            std::string _msg = "error open file:" + fname;
            throw std::runtime_error(nmx_msg_txt(_msg));
        }
        return _ofs;
    }

    static std::ofstream get_stream(const std::string &dirname, const std::string &fname) {
        std::stringstream _stream;
        _stream << settings::Config::data_directory //
                << "/" << dirname //
                << "/" << fname; //
        return get_stream(_stream.str());
    }

    static std::ofstream get_stream(const std::string &dirname, const Format &fmt) {
        std::stringstream _stream;
        _stream << settings::Config::data_directory //
                << "/" << dirname //
                << "/" << fmt.name() //
                << "." << fmt.ext(); //
        std::ofstream ofs = get_stream(_stream.str());
        fmt.set_defaults(ofs);
        return ofs;
    }

    template<class T>
    static std::ofstream get_stream(const std::string &dirname, const Format &fmt, const T &id) {
        std::stringstream _stream;
        _stream << settings::Config::data_directory //
                << "/" << dirname //
                << "/" << fmt.name() //
                << "-" << id << "." << fmt.ext();

        //erzeuge Ausgabestrom
        std::ofstream ofs = get_stream(_stream.str());
        fmt.set_defaults(ofs);
        return ofs;
    }

private:
    inline static Format _array = Output::csv;

public:
    friend std::ostream &operator<<(std::ostream &os, const Format &fmt);

    inline static const Format &array() { return _array; }
};

inline std::ostream &operator<<(std::ostream &os, const Format &fmt) {
    Output::_array = fmt;
    return os;
}

} // namespace nmx