#include <string.h>
#include "TimerOne.h"
char k;
char lastk;
char *readings;
char command[20];
int timeout = 0;
int timeout2 = 0;
int messageMarker = 3;
// next set are for sending the sms
int hall = 0;
int lasthall = 0;
int total = 0;
int fiftyms = 0;
int fiftymstosend = 600;
int timesToSend = 1;        // Numbers of SMS to send
int count = 0;
int valvestatus = 1;
 // number of combinations of carriage return and line feed

void setup()
{
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  Serial.begin(9600);


  //Serial.println(".");

  // next are for sending data
  Timer1.initialize(50000);  // 50 miliseconds
  Timer1.pwm(9, 512); // IMPORTANT
  Timer1.attachInterrupt(callback);
  Serial.println("AT+CMGR=1");
  delay(1000);

  Serial.println("AT+CMGD=1,4");
  delay(1000);
  for (int i=0;i<2;i++){
    delay(5000);
  }

   Serial.println("AT+CMGF=1");

}

void callback()
{
  fiftyms++;

  hall = analogRead(A0);
  if(hall>512 && lasthall<512)
  {
    total++;
  }
  lasthall = hall;
}
void loop()
{
  /* next are for sending data

  */

  startloop:
  count=0;
  if(fiftyms >= fiftymstosend)
  {
  while (count < timesToSend){
    delay(1500);
    Serial.print("AT+CMGS=");               // send the SMS the number
    Serial.print(34,BYTE);                  // send the " char
    Serial.print("09109627081");              // send the number change ********* by the actual number
    Serial.println(34,BYTE);                // send the " char
    delay(1500);
    Serial.print("r ");
    Serial.print(total);     // the SMS body
    Serial.print(" ");
    Serial.print(valvestatus);
    delay(500);
    Serial.print(0x1A,BYTE);                // end of message command 1A (hex)

    delay(5000);

    count++;
  }
  fiftyms = 0;
  total=0;
 }
  //Serial.println(".");
  int gotTheWord = 0;

  if(Serial.available())
  {
    //Serial.println("+");
    int comindex = 0;
    int numchar = 0;
    int enters=0;
    int del = 0;
    while(Serial.available()>0)
    {
     //Serial.println("x");
      k = Serial.read(), BYTE;


     if(k=='C')
      {

        k= Serial.read(), BYTE;
        if(k=='M')
        {
          k = Serial.read(), BYTE;
          if(k=='G')
          {
            k= Serial.read(), BYTE;
            if(k=='R')
            {
              //Serial.println("c.m.g.r");

              del=1;
            }
          }

          else if(k=='T')
          {
            k = Serial.read(), BYTE;

            if(k=='I')
            {
              //Serial.flush();
              Serial.println("---------------NEWMSG");
              Serial.end();
              delay(50);
              Serial.begin(9600);
              delay(50);
              Serial.println("AT+CMGR=1");

              messageMarker=4;
              del = 0;
              enters = 0;
              comindex = 0;
              timeout=0;
              timeout2=0;
              goto startloop;

            }
          }
        }
      }




      //Serial.print(k);
      if(lastk==13 && k==10)
      {
        enters++;
      }
      lastk = k;



      if(enters==messageMarker)//pangatlong combo o pangapat, mejo magulo eh
      {
        if (k == 10 || k == 13)
        {
          // bakit kaya hindi gumagana ung not equal? :\
          Serial.print("");
        }

        else{
          if(k=='N')
          {
            valvestatus = 1;
            digitalWrite(13,HIGH);
            digitalWrite(12,HIGH);
          }
          if(k=='F')
          {
            valvestatus = 0;
            digitalWrite(13,LOW);
              digitalWrite(12, LOW);
          }
           command[comindex] = k;
           comindex++;

        //command[comindex] = '\0';
        //Serial.print(k);

        Serial.print(k);
        }

      }
      if(enters > messageMarker && del == 1)
      {
        //Serial.flush();
        delay(100);
        Serial.print("<");
        Serial.print(enters);
        Serial.print(":::");
        Serial.print(messageMarker);
        Serial.print(">");
        Serial.println("AT+CMGD=1,4");
        Serial.println(command);
        String commstring = (String)command;
        if(commstring.equals("ON"))
        {
          valvestatus = 1;
          digitalWrite(12,HIGH);
          digitalWrite(13,HIGH);
        }
        if(commstring.equals("OFF"))
        {
          valvestatus = 1;
          digitalWrite(13,LOW);
          digitalWrite(12,LOW);
        }

        Serial.flush();
        gotTheWord = 1;

      }

      delay(10);
      //goto startloop;
    }

  }/* needed
  else
  {
    delay(50);
    timeout++;
    if(timeout==10)
    {
      timeout=0;

      Serial.println("AT+CMGR=1");
    }
  }*/
  //Serial.flush();

}