#include <SoftwareSerial.h>
#include "SIM800L.h"

#define SIM800_RX_PIN 10
#define SIM800_TX_PIN 11
#define SIM800_RST_PIN 7

SIM800L* sim800l;

const char APN[] = "TM";
String BASE_URL = "http://2.238.194.8/index.php?";
//String BASE_URL = "https://postman-echo.com/get?";

String s = "";
char URL[100];


int anemometerPin = 6;
int anemometerVal = 0;
int anemometerState = 0;
unsigned long anemometerDuration = 0;
unsigned long startime = 0;
unsigned long timer = 0;
int windSpeed = 0;

int northPin = 4;
int eastPin = 5;
int southPin = 2;
int westPin = 3;

int timerLimit = 3000;//300000; // 5 minutes

bool printSensorsData = true;

String windDirection = "";



void setup() {
  // Initialize Serial Monitor for debugging
  Serial.begin(115200);
  while(!Serial);

  // Initialize a SoftwareSerial
  SoftwareSerial* serial = new SoftwareSerial(SIM800_RX_PIN, SIM800_TX_PIN);
  serial->begin(9600);
  delay(1000);

  // Initialize SIM800L driver with an internal buffer of 200 bytes and a reception buffer of 512 bytes, debug disabled
  sim800l = new SIM800L((Stream *)serial, SIM800_RST_PIN, 200, 512);

  // Setup module for GPRS communication
  setupModule();
}

void loop() {

  windDirection = "";
  anemometerVal = digitalRead(anemometerPin);

  if ((anemometerState == 1) && (anemometerVal == 0)) {
    anemometerDuration = millis() - startime;
    startime = millis();
    windSpeed = 2500.0/anemometerDuration;
  }

  anemometerState = anemometerVal;

  if(millis() >= timer) {

    Serial.println("--------------------------");
    Serial.println("Sending...");

    timer = millis() + timerLimit;

    if(digitalRead(northPin)) {windDirection = windDirection + "N";}
    if(digitalRead(southPin)) {windDirection = windDirection + "S";}
    if(digitalRead(eastPin)) {windDirection = windDirection + "E";}
    if(digitalRead(westPin)) {windDirection = windDirection + "W";}

    if(printSensorsData) {
      Serial.print("Wind speed:\t");
      Serial.print(windSpeed);
      Serial.println("Km/h");

      Serial.print("Wind direction:\t");
      Serial.println(windDirection);

    }

    sendRequest();

  }

}