#include <ESP8266WiFi.h>
#include <TimeLib.h>
#include <WiFiUdp.h>

String  ClientRequest;
IPAddress staticIP707_10(192,168,86,10);
IPAddress gateway707_10(192,168,86,1);
IPAddress subnet707_10(255,255,255,0);

WiFiServer server(80);
int MT;
int DY;
int YR;
int HR;
int MN;
int SC;
int MN_Timer;
int storeMins;
int timerMinsSet;
int setHR = 9;
int setMN = 48;
int dur_Timer_MN = setMN + 1;
 
char ntpServerName[] = "us.pool.ntp.org";
int timeZone = -7;
WiFiUDP Udp;
unsigned int localPort = 8888;
time_t getNtpTime();

void printDigits(int digits);
void sendNTPpacket(IPAddress &address);
int digitalClockDisplay(char m){
int interm;

if (m=='h'){
interm=hour();
return interm;
}
if (m=='m'){
interm=minute();
return interm;
}
if (m=='s'){
interm=second();
return interm;
}
if (m=='j'){
interm=day();
return interm;
}
if (m=='n'){
interm=month();
return interm;
}
if (m=='y'){
interm=year();
return interm;
}
}

 /*-------- NTP code ----------*/
const int NTP_PACKET_SIZE = 48; // NTP time is in the first 48 bytes of message
byte packetBuffer[NTP_PACKET_SIZE]; //buffer to hold incoming & outgoing packets
time_t getNtpTime()
{
IPAddress ntpServerIP; // NTP server's ip address
while (Udp.parsePacket() > 0) ; // discard any previously received packets
Serial.println("Transmit NTP Request");
// get a random server from the pool
WiFi.hostByName(ntpServerName, ntpServerIP);
Serial.print(ntpServerName);
Serial.print(":");
Serial.println(ntpServerIP);
sendNTPpacket(ntpServerIP);
uint32_t beginWait = millis();
while (millis() - beginWait < 1500) {
int size = Udp.parsePacket();
if (size >= NTP_PACKET_SIZE) {
Serial.println("Receive NTP Response");
Udp.read(packetBuffer, NTP_PACKET_SIZE);  // read packet into the buffer
unsigned long secsSince1900;
// convert four bytes starting at location 40 to a long integer
secsSince1900 =  (unsigned long)packetBuffer[40] << 24;
secsSince1900 |= (unsigned long)packetBuffer[41] << 16;
secsSince1900 |= (unsigned long)packetBuffer[42] << 8;
secsSince1900 |= (unsigned long)packetBuffer[43];
return secsSince1900 - 2208988800UL + timeZone * SECS_PER_HOUR;
}
}
Serial.println("No NTP Response :-(");
return 0; // return 0 if unable to get the time
}
void sendNTPpacket(IPAddress &address)
{
memset(packetBuffer, 0, NTP_PACKET_SIZE);
packetBuffer[0] = 0b11100011;   // LI, Version, Mode
packetBuffer[1] = 0;     // Stratum, or type of clock
packetBuffer[2] = 6;     // Polling Interval
packetBuffer[3] = 0xEC;  // Peer Clock Precision
packetBuffer[12] = 49;
packetBuffer[13] = 0x4E;
packetBuffer[14] = 49;
packetBuffer[15] = 52;
Udp.beginPacket(address, 123); //NTP requests are to port 123
Udp.write(packetBuffer, NTP_PACKET_SIZE);
Udp.endPacket();
}

void setup()
{
  ClientRequest = "";

Serial.begin(115200);
  WiFi.disconnect();
  delay(3000);
  Serial.println("START");
   WiFi.begin("SSID","PASSWORD");
  while ((!(WiFi.status() == WL_CONNECTED))){
    delay(300);
    Serial.print("..");

  }
  Serial.println("Connected");
  WiFi.config(staticIP707_10, gateway707_10, subnet707_10);
  Serial.println("Your IP is");
  Serial.println((WiFi.localIP().toString()));
  server.begin();

Udp.begin(localPort);
setSyncProvider(getNtpTime);
setSyncInterval(300); 
}


void loop()
{
  Serial.println();
  (MT=digitalClockDisplay('n'));
  (DY=digitalClockDisplay('j'));
  (YR=digitalClockDisplay('y'));
  
  (HR=digitalClockDisplay('h'));
  (MN=digitalClockDisplay('m'));
  (SC=digitalClockDisplay('s'));
  
  Serial.print(MT);
  Serial.print('-');
  Serial.print(DY);
  Serial.print('-');
  Serial.println(YR);
  Serial.print(HR);
  Serial.print(':');
  Serial.print(MN);
  Serial.print(':');
  Serial.println(SC);
  delay(5000);
  
  ////////////////////////////////////////////////////////////

  if(HR == setHR && MN <= dur_Timer_MN){
  //digitalWrite(output5, HIGH); //Turn on I/O pin
  Serial.print("Turn on I/O pin");
  }else{
  Serial.print("Turn off I/O pin");
  //digitalWrite(output5, LOW); //Turn ff I/O pin
  
  }
  //////////////////////////////////////////////////////////

    WiFiClient client = server.available();
    if (!client) { return; }
    while(!client.available()){  delay(1); }
    ClientRequest = (client.readStringUntil('\r'));
    client.flush();

}