mayhem-firmware/firmware/application/app_settings.hpp

/*
 * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2016 Furrtek
 * Copyright (C) 2022 Arjan Onwezen
 *
 * This file is part of PortaPack.
 *
 * This program 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 2, or (at your option)
 * any later version.
 *
 * This program 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 this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#ifndef __APP_SETTINGS_H__
#define __APP_SETTINGS_H__

#include <cstddef>
#include <cstdint>
#include <string>

#include "file.hpp"
#include "string_format.hpp"

namespace std {
class app_settings {
   public:
#define SETTINGS_OK 0               // settings found
#define SETTINGS_UNABLE_TO_LOAD -1  // settings (file) not found
#define SETTINGS_UNABLE_TO_SAVE -2  // unable to save settings
#define SETTINGS_DISABLED -3        // load/save settings disabled in settings

    struct AppSettings {
        uint32_t baseband_bandwidth;
        uint32_t channel_bandwidth;
        uint8_t lna;
        uint8_t modulation;
        uint8_t rx_amp;
        uint32_t rx_frequency;
        uint32_t sampling_rate;
        uint8_t tx_amp;
        uint32_t tx_frequency;
        uint8_t tx_gain;
        uint8_t vga;
        uint32_t step;
        uint8_t am_config_index;
        uint8_t nbfm_config_index;
        uint8_t wfm_config_index;
        uint8_t squelch;
    };

    int load(std::string application, AppSettings* settings);
    int save(std::string application, AppSettings* settings);

   private:
#define MAX_FILE_CONTENT_SIZE 1000

    char file_content[MAX_FILE_CONTENT_SIZE] = {};
    std::string file_path = "";
    std::string folder = "SETTINGS";
    int rc = SETTINGS_OK;
    File settings_file{};
    long long int setting_value{};

    long long int read_long_long(char* file_content, const char* setting_text);

};  // class app_settings
}  // namespace std

#endif /*__APP_SETTINGS_H__*/