#include <stdio.h>
#include <string.h>
#include <stdlib.h>

/*********************************************************
  Global variables + Defines
**********************************************************/

typedef struct {
    int Dn;
    int Dm;
    int Dx;
    float Sn;
    float Sm;
    float Sx;
    float Ta;
    float Ua;
    float Pa;
    float Rc;
    float Sr;
    int Lux;
    int T;
    float La;
    float Lo;
} wts;

wts weather_packet;

/*********************************************************
  Functions
**********************************************************/

void printWTSvalues(void)
{
    Serial.print("Dn: ");
    Serial.println(weather_packet.Dn);

    Serial.print("Dm: ");
    Serial.println(weather_packet.Dm);

    Serial.print("Dx: ");
    Serial.println(weather_packet.Dx);

    Serial.print("Sn: ");
    Serial.println(weather_packet.Sn);

    Serial.print("Sm: ");
    Serial.println(weather_packet.Sm);

    Serial.print("Sx: ");
    Serial.println(weather_packet.Sx);

    Serial.print("Ta: ");
    Serial.println(weather_packet.Ta);

    Serial.print("Ua: ");
    Serial.println(weather_packet.Ua);

    Serial.print("Pa: ");
    Serial.println(weather_packet.Pa);

    Serial.print("Rc: ");
    Serial.println(weather_packet.Rc);

    Serial.print("Sr: ");
    Serial.println(weather_packet.Sr);

    Serial.print("Lux: ");
    Serial.println(weather_packet.Lux);

    Serial.print("T: ");
    Serial.println(weather_packet.T);

    Serial.print("La: ");
    Serial.println(weather_packet.La);

    Serial.print("Lo: ");
    Serial.println(weather_packet.Lo);
}

void getWeatherData(void)
{
    char str[512];
    memset(str, 0, 512);
    char *field;
    char *pch;

    // Send R0 command and dump response into str
    Serial1.print("0R0\r\n");
    Serial1.readBytesUntil("\n", str, 512);

    Serial.println(str);

    field = strtok(str, ",");
    pch = strchr(field, '=');
    ++pch;
    weather_packet.Dn = atoi(pch);

    field = strtok(nullptr, ",");
    weather_packet.Dm = atoi(field);

    field = strtok(nullptr, ",");
    weather_packet.Dx = atoi(field);

    field = strtok(str, ",");
    weather_packet.Sn = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Sm = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Sx = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Ta = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Ua = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Pa = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Rc = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Sr = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Lux = atoi(field);

    field = strtok(nullptr, ",");
    weather_packet.T = atoi(field);

    field = strtok(nullptr, ",");
    weather_packet.La = atof(field);

    field = strtok(nullptr, ",");
    weather_packet.Lo = atof(field);

    printWTSvalues();
}

/*********************************************************
  Init
**********************************************************/

void setup()
{
    Serial.begin(19200);
    Serial1.begin(19200);
    delay(2000);
}

/*********************************************************
  Loop
**********************************************************/

void loop()
{
    getWeatherData();
    delay(5000);
}