//
// php-armadillo/constants.hh
//
// @Author CismonX
//

#ifndef PHP_ARMA_CONSTANTS_HH
#define PHP_ARMA_CONSTANTS_HH

#include "php_arma.hh"

#include <armadillo>

namespace php_arma
{
    struct fill
    {
        static constexpr auto none           = 0;
        static constexpr auto zeros          = 1;
        static constexpr auto ones           = 2;
        static constexpr auto eye            = 3;
        static constexpr auto randu          = 4;
        static constexpr auto randn          = 5;

        template <typename T>
        zend_always_inline
        static void invoke(T *obj, zend_long val)
        {
            switch (val) {
                case none:
                    break;
                case zeros:
                    obj->zeros();
                    break;
                case ones:
                    obj->ones();
                    break;
                case eye:
                    obj->eye();
                    break;
                case randu:
                    obj->randu();
                    break;
                case randn:
                    obj->randn();
                    break;
                default:
                    throw_error("bad fill type");
            }
        }
    };

    constexpr const char fill_php_name[] = "Fill";
    inline zend_class_entry *fill_ce;

    struct file_type
    {
        static constexpr auto auto_detect    = 0;
        static constexpr auto arma_binary    = 1;
        static constexpr auto arma_ascii     = 2;
        static constexpr auto raw_binary     = 3;
        static constexpr auto raw_ascii      = 4;
        static constexpr auto csv_ascii      = 5;
        static constexpr auto coord_ascii    = 6;
        static constexpr auto pgm_binary     = 7;
        static constexpr auto hdf5_binary    = 8;

        zend_always_inline
        static arma::file_type native(zend_long val)
        {
            switch (val) {
                case auto_detect:
                    return arma::file_type::auto_detect;
                case arma_binary:
                    return arma::file_type::arma_binary;
                case arma_ascii:
                    return arma::file_type::arma_ascii;
                case raw_binary:
                    return arma::file_type::raw_binary;
                case csv_ascii:
                    return arma::file_type::csv_ascii;
                case coord_ascii:
                    return arma::file_type::coord_ascii;
                case pgm_binary:
                    return arma::file_type::pgm_binary;
#ifdef ARMA_USE_HDF5
                case hdf5_binary:
                    return arma::file_type::hdf5_binary;
#endif // ARMA_USE_HDF5
                default:
                    return arma::file_type::file_type_unknown;
            }
        }
    };

    constexpr const char file_type_php_name[] = "FileType";
    inline zend_class_entry *file_type_ce;

    struct sort_direction
    {
        static constexpr auto ascend         = 0;
        static constexpr auto descend        = 1;
        static constexpr auto strict_ascend  = 2;
        static constexpr auto strict_descend = 3;

        zend_always_inline
        static const char *native(zend_long val)
        {
            switch (val) {
                case ascend:
                    return "ascend";
                case descend:
                    return "decend";
                case strict_ascend:
                    return "strictascend";
                case strict_descend:
                    return "strictdescend";
                default:
                    return nullptr;
            }
        }
    };

    constexpr const char sort_direction_php_name[] = "SortDirection";
    inline zend_class_entry *sort_direction_ce;

#ifdef ARMA_USE_HDF5
    struct hdf5_opts
    {
        static constexpr auto none           = 0u;
        static constexpr auto trans          = 1u << 0;
        static constexpr auto append         = 1u << 1;
        static constexpr auto replace        = 1u << 2;
    };

    constexpr const char hdf5_opts_php_name[] = "Hdf5Opts";
    inline zend_class_entry *hdf5_opts_ce;
#endif // ARMA_USE_HDF5

    struct features
    {
#ifdef PHP_ARMA_OPERATORS
        static constexpr auto operators      = true;
#else
        static constexpr auto operators      = false;
#endif // PHP_ARMA_OPERATORS
#ifdef ARMA_USE_HDF5
        static constexpr auto hdf5           = true;
#else
        static constexpr auto hdf5           = false;
#endif // ARMA_USE_HDF5
#ifdef __GLIBCXX__
        static constexpr auto stream_res     = true;
#else
        static constexpr auto stream_res     = false;
#endif // __GLIBCXX__
    };

    constexpr const char features_php_name[] = "Features";
    inline zend_class_entry *features_ce;

    void constants_init();
}

#endif //!PHP_ARMA_CONSTANTS_HH