// gcc -o test1 test1.c -lwiringPi -lcurl

#include <wiringPi.h>
#include <time.h>
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>

int main(void)
{
  wiringPiSetup() ;
  pinMode (6, INPUT) ;
  int result;
  int count;
  long start_time = time(NULL);
  printf("Start Time: %u\n", start_time);

  CURL *curl;
  CURLcode res;


  for(;;)
  {
    long diff_result = time(NULL) % 60;
    if (diff_result == 0) {
        printf("Tick %d CPM\n", count);

        char total_string[100];

        sprintf(total_string, "cpm,host=nanopi value=%d", count);
        printf(total_string);
        printf("\n");

        curl = curl_easy_init();
        if(curl) {

            struct curl_slist *headers = NULL;
            headers = curl_slist_append(headers, "Accept: application/octet-stream");
            headers = curl_slist_append(headers, "Content-Type: application/octet-stream");
            headers = curl_slist_append(headers, "charset: utf-8");

            curl_easy_setopt(curl, CURLOPT_URL, "http://192.168.1.1:8086/write?db=maindb");
            curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
            curl_easy_setopt(curl, CURLOPT_POSTFIELDS, total_string);
            curl_easy_setopt(curl, CURLOPT_USERAGENT, "libcrp/0.1");

            curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (long)strlen(total_string));

             /* Perform the request, res will get the return code */
            res = curl_easy_perform(curl);
            /* Check for errors */
            if(res != CURLE_OK)
              fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));

            /* always cleanup */
            curl_easy_cleanup(curl);
          }

        count = 0;
        delay(1000);
    }

    result = digitalRead(6) ;

    if (result == 0) {
        printf("%u\n", (unsigned)time(NULL));
        count++;
        delay(1);
    }
    delay (0.2) ;
  }
}