#define BLYNK_PRINT Serial 
#include <Arduino.h>         
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <SPI.h>
#include <Wire.h>
#include "RTClib.h"
#include "PCF8574.h"
char auth[] = "hlg4EVStnSTSj0vhpIXxDbudcdj6I8tm";//Codeappในมือถือ
char ssid[] = "PANISARA";
char pass[] = "pk130617pk";
BlynkTimer timer;
WidgetLED led1(V12);
RTC_DS3231 rtc;
PCF8574 relay(0x20);
float kcbnn[] = {2.21,2.02,2.22,1.94,1.74,1.78,1.96,2.07,2.18,2.18,1.88,1.86};
float kckanun[] = {1.29,1.01,1.29,1.59,1.73,1.77,1.38,1.58,1.83,0.84,0.65,1.27};
float kcmg[] = {1.69,1.61,1.27,1.24,1.19,2.1,2.46,2.53,2.28,2.29,2.5,1.9};
float nkpt[] = {3.7,4.35,5.15,5.12,4.02,4,3.63,3.16,3.44,3.69,3.92,3.66};
float auty[] = {3.95,4.2,4.58,4.58,4.02,4.1,3.73,3.68,3.36,3.46,3.92,3.94};
float spbr[] = {3.45,4.11,4.83,5.01,4.36,3.99,3.89,3.32,3.45,3.45,3.58,3.5};
int m, n, a, u, k,pinValuehr,pinValuemin,e,r,pinValueday,pinValue,pinValueYear,d,o,Switch,Num,Check;
double dlay,Vall,Ause,dlay1,depth,kc,eto,pinValuemeter,pinValueq,pinValuekc,pinValueeto,Cube, area;
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
const char* mon[] = {"Jan","Feb","Mar","Apr","May","June","July","Aug","Sep","Oct","Apr","Dec"};//Nouse
const char* fruit[] = {"Mango","Banana","Kanun"};
const char* Area[] = {"Nakornphatom","Ayutthaya","Suphanburi"};
double ck = 0;
BLYNK_WRITE(V2) { //Hrset
 pinValuehr = param.asInt();
}
BLYNK_WRITE(V3) { //Minset
 pinValuemin = param.asInt();
}
BLYNK_WRITE(V6) { //switchMannual
 pinValue = param.asInt();
}
BLYNK_WRITE(V7) { //Diameter ทรงพุ่ม
 pinValuemeter = param.asFloat();
}
BLYNK_WRITE(V8) { //อัตราการไหลน้ำจากปั้ม
 pinValueq = param.asFloat();
}
BLYNK_WRITE(V5) { //kcกรอกเอง
 pinValuekc = param.asFloat();
}
BLYNK_WRITE(V10) { //etoกรอกเอง
 pinValueeto = param.asFloat();
}
BLYNK_WRITE(V11) { //etoกรอกเอง
 Switch = param.asFloat();
}
BLYNK_WRITE(V14) { //จำนวนต้น
 Num = param.asFloat();
}
BLYNK_WRITE(V1) { //kcพืช
  switch (param.asInt())
  {
    case 1: 
      a = 0;
      kc = kcmg[m];
       break;
    case 2: 
      a = 1;
      kc = kcbnn[m];
      break;
    case 3: 
      a = 2;
      kc = kckanun[m];
      break;
      default:
      Serial.println("Unknown item selected");
  }
}
BLYNK_WRITE(V0) { //Eto
  switch (param.asInt())
  {
    case 1: 
      n = 0;
      eto = nkpt[m];
      break;
    case 2: 
      n = 1;
      eto = auty[m];
      break;
    case 3: 
      n = 2;
      eto = spbr[m] ;
      break;
      default:
      Serial.println("Unknown item selected");
  }
}
void seet()//แสดงเวลา
{
  DateTime now = rtc.now();
  u = now.month();
  m = u - 1;
  Serial.print(now.year(), DEC);
  Serial.print('/');
  Serial.print(now.month(), DEC);
  Serial.print('/');
  Serial.print(now.day(), DEC);
  Serial.print(" (");
  Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
  Serial.print(") ");
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.println(now.second(), DEC);
  Serial.print("TimeSet : ");
  Serial.print(pinValuehr);
  Serial.print(":");
  Serial.println(pinValuemin);
  String currentTime = String(now.hour()) + ":" + now.minute()  + ":" + now.second();
  Blynk.virtualWrite(V9, currentTime);//แสดงเวลาในBlynk
  String currentTimeSet = String(pinValuehr) + ":" + pinValuemin ;
  Blynk.virtualWrite(V13, currentTimeSet);
  if(pinValue == 0)
  {
  Serial.println("Auto");
  }
  else
  {
   Serial.println("Mannual"); 
  }
}
void see()//Auto
{
  if( pinValue == 0)
  {
  Serial.print("Fruit = ");
  Serial.println(fruit[a]);
  Serial.print("Area = ");
  Serial.println(Area[n]);
  Serial.print("Kc = ");
  Serial.println(kc);
  Serial.print("Eto = ");
  Serial.println(eto);
  depth = kc*eto*0.001;
  area = ( 3.14159 * pinValuemeter *pinValuemeter * Num)/4 ;
  Serial.print("Area = ");
  Serial.println(area);
  Vall = depth * area ;
  Serial.print("Q = ");
  Serial.println(pinValueq);
    if(pinValueq == 0)
  {
    pinValueq++;//กันnanถ้าไม่ใส่ค่าให้Q=1
  }
  Cube = pinValueq/60000;
  dlay = Vall / Cube ;
  Serial.print("DelaySolenoid = ");
  Serial.print(dlay);
  Serial.println(" Sec");
  Blynk.virtualWrite(V4, dlay);//แสดงลงBlynkค่าDelay
  Serial.println("-------------------------------------");
  }
}
void see1()//Manual
{
  if( pinValue == 1)
  {
  Serial.print("Kc = ");
  Serial.println(pinValuekc);
  Serial.print("Eto = ");
  Serial.println(pinValueeto);
  depth = pinValuekc*pinValueeto*0.001;
  area = ( 3.14159 * pinValuemeter *pinValuemeter * Num)/4 ;
  Serial.print("Area = ");
  Serial.println(area);
  Vall = depth * area ;
  Serial.print("Q = ");
  Serial.println(pinValueq);
    if(pinValueq == 0)
  {
    pinValueq++;//กันnanถ้าไม่ใส่ค่าให้Q=1
  }
  Cube = pinValueq/60000;
  dlay = Vall / Cube ;
  Serial.print("DelaySolenoid = ");
  Serial.print(dlay);
  Serial.println(" Sec");
  Blynk.virtualWrite(V4, dlay);//แสดงลงBlynkค่าDelay
  Serial.println("-------------------------------------");
  }
}
void timetoopensolenoi()//เวลาเริ่มให้วาว์ลเปิด
{
    DateTime now = rtc.now();
    e = now.hour();
    r = now.minute();
    k = now.second();
    if(e == pinValuehr )
    {
      if(r == pinValuemin){
        if(k <= 1){
        dlay1 = dlay*1000;
        Check = 1 ;
        }
      }
    }
}
void open(){//ฟังค์ชั่นให้เปิดปิดวาวล์ทันที
if(Check == 1)
      if( ck <= dlay1) {
        ck = ck + 1000; 
        led1.on();//LED Blynkเปิด
        if(Switch == 1){//กดสวิตช์ในBlynkวาวล์จะเปิด
        relay.digitalWrite(P1, HIGH); 
        }
      }
       if(Switch == 0){
        relay.digitalWrite(P1, LOW); 
        led1.off();
      } 
      if( ck > dlay1 ){
        ck = 0;
        relay.digitalWrite(P1, LOW); 
        led1.off();
        Check = 0;
       }
}
void setup()
{
  Serial.begin(9600);
  Wire.begin();
  relay.begin();
  Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 80);
  pinMode(D8, OUTPUT); 
  digitalWrite(D8, LOW);
  relay.pinMode(P1, OUTPUT);
  relay.pinMode(P6, OUTPUT); // Buzzer
  digitalWrite(D8, HIGH); 
  #ifndef ESP8266
  while (!Serial);
  #endif
  rtc.adjust(DateTime(2021, 5, 14, 23, 5, 0));//กำหนดเวลาRTC
  if (rtc.lostPower())
  {
  Serial.println("RTC lost power, let's set the time!");
  }
  Blynk.virtualWrite(V15, "ระบบให้น้ำอัจฉริยะ");
  timer.setInterval(1000L, seet);
  timer.setInterval(1000L, see);
  timer.setInterval(1000L, see1);
  timer.setInterval(1000L, timetoopensolenoi);
  timer.setInterval(1000L, open);
}
void loop()
{
  relay.digitalWrite(P6, LOW);//ปิดเสียงBuzzer
  Blynk.run();
  timer.run();
}