/*!
 * \file galileo_e1_signal_processing.h
 * \brief This library implements various functions for Galileo E1 signals
 * \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
 *
 *
 * -------------------------------------------------------------------------
 *
 * Copyright (C) 2010-2018  (see AUTHORS file for a list of contributors)
 *
 * GNSS-SDR is a software defined Global Navigation
 *          Satellite Systems receiver
 *
 * This file is part of GNSS-SDR.
 *
 * GNSS-SDR is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * GNSS-SDR is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
 *
 * -------------------------------------------------------------------------
 */

#ifndef GNSS_SDR_GALILEO_E1_SIGNAL_PROCESSING_H_
#define GNSS_SDR_GALILEO_E1_SIGNAL_PROCESSING_H_

#include <array>
#include <complex>
#include <cstdint>
#if HAS_SPAN
#include <span>
namespace gsl = std;
#else
#include <gsl/gsl>
#endif


/*!
 * \brief This function generates Galileo E1 code (can select E1B or E1C sinboc).
 *
 */
void galileo_e1_code_gen_sinboc11_float(gsl::span<float> _dest, const std::array<char, 3>&  _Signal, uint32_t _prn);

/*!
 * \brief This function generates Galileo E1 code (can select E1B or E1C, cboc or sinboc
 * and the sample frequency _fs).
 *
 */
void galileo_e1_code_gen_float_sampled(gsl::span<float> _dest, const std::array<char, 3>&  _Signal,
    bool _cboc, uint32_t _prn, int32_t _fs, uint32_t _chip_shift,
    bool _secondary_flag);

/*!
 * \brief This function generates Galileo E1 code (can select E1B or E1C, cboc or sinboc
 * and the sample frequency _fs).
 *
 */
void galileo_e1_code_gen_float_sampled(gsl::span<float> _dest, const std::array<char, 3>&  _Signal,
    bool _cboc, uint32_t _prn, int32_t _fs, uint32_t _chip_shift);

/*!
 * \brief This function generates Galileo E1 code (can select E1B or E1C, cboc or sinboc
 * and the sample frequency _fs).
 *
 */
void galileo_e1_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, const std::array<char, 3>&  _Signal,
    bool _cboc, uint32_t _prn, int32_t _fs, uint32_t _chip_shift,
    bool _secondary_flag);

/*!
 * \brief galileo_e1_code_gen_complex_sampled without _secondary_flag for backward compatibility.
 */
void galileo_e1_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, const std::array<char, 3>&  _Signal,
    bool _cboc, uint32_t _prn, int32_t _fs, uint32_t _chip_shift);

#endif /* GNSS_SDR_GALILEO_E1_SIGNAL_PROCESSING_H_ */