//
// php-armadillo/functions.cc
//
// @Author CismonX
//

#include "functions.hh"
#include "complex.hh"

#define PHP_ARMA_FE(func) \
    ZEND_RAW_FENTRY("Arma\\" #func, ZEND_FN(func), nullptr, 0)

namespace php_arma
{
    PHP_FUNCTION(cx_double)
    {
        double real = 0.;
        double imag = 0.;
        ZEND_PARSE_PARAMETERS_START(0, 2)
            Z_PARAM_OPTIONAL
            Z_PARAM_DOUBLE(real)
            Z_PARAM_DOUBLE(imag)
        ZEND_PARSE_PARAMETERS_END();

        zval_set_scalar(return_value, std::complex<double>(real, imag));
    }

    PHP_FUNCTION(j)
    {
        double imag = 0.;
        ZEND_PARSE_PARAMETERS_START(0, 1)
            Z_PARAM_OPTIONAL
            Z_PARAM_DOUBLE(imag)
        ZEND_PARSE_PARAMETERS_END();
        
        zval_set_scalar(return_value, std::complex<double>(0., imag));
    }

    PHP_FUNCTION(srand)
    {
        zend_long seed;
        ZEND_PARSE_PARAMETERS_START(0, 1)
            Z_PARAM_OPTIONAL
            Z_PARAM_LONG(seed)
        ZEND_PARSE_PARAMETERS_END();

        if (EX_NUM_ARGS() == 0) {
            arma::arma_rng::set_seed_random();
        } else {
            arma::arma_rng::set_seed(seed);
        }
    }

    const zend_function_entry functions[] = {
        PHP_ARMA_FE(cx_double)
        PHP_ARMA_FE(j)
        PHP_ARMA_FE(srand)
        PHP_FE_END
    };
}