#include <settings/wifi/wifi.hpp>
#include <iostream>
#include <fstream>
#include <syslog.h>

#define WIFI_CHANNEL_REQUIRED_STRING R"({"required":"[token,channel]"})"

namespace api
{
    namespace settings
    {
        namespace wifi
        {
            void set_wifi_channel(int new_channel)
            {
                std::ifstream wifisettingsfile(WIFI_SETTINGS_PATH);
                std::string old_channel_string;
                std::string wifisettingsbuffer;
                while (std::getline(wifisettingsfile, wifisettingsbuffer))
                {
                    if (wifisettingsbuffer.find("channel=") == 0)
                    {
                        old_channel_string = wifisettingsbuffer;
                        old_channel_string.erase(0, 8);
                        break;
                    }
                }
                wifisettingsfile.close();
                std::cout << old_channel_string << std::endl;
                int old_channel = std::stoi(old_channel_string);
                std::string systemrequest;
                systemrequest += "sed -i \"/channel=" \
                    + std::to_string(old_channel) \
                    + "/s//channel=" \
                    + std::to_string(new_channel) \
                    + "/\" /etc/hostapd/hostapd.conf";
                std::cout << systemrequest << std::endl;
                system(systemrequest.c_str());
                system("rc restart hostapd");
                std::string syslogstring = "WIFI channel changed to " + std::to_string(new_channel);
                syslog(LOG_INFO, "%s", syslogstring.c_str());
            }
        }
    }
}