#include <NTPClient.h>

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include <LiquidCrystal_I2C.h>
#include <Wire.h>

//WiFi Creds
const char *ssid     = "Insert your router here";
const char *password = "router password";

//Clock variables
const long utcOffsetInSeconds = 0;
char daysOfTheWeek[7][12] = {"Sunday   ", "Monday   ", "Tuesday  ", "Wednesday", "Thursday ", "Friday   ", "Saturday "};

// Define NTP Client to get time
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "pool.ntp.org", utcOffsetInSeconds);

//i2c Screen definitions
LiquidCrystal_I2C lcd(0x3F, 20, 4);

uint8_t bell[8]  = {0x4, 0xe, 0xe, 0xe, 0x1f, 0x0, 0x4};
uint8_t note[8]  = {0x2, 0x3, 0x2, 0xe, 0x1e, 0xc, 0x0};
uint8_t clock[8] = {0x0, 0xe, 0x15, 0x17, 0x11, 0xe, 0x0};
uint8_t heart[8] = {0x0, 0xa, 0x1f, 0x1f, 0xe, 0x4, 0x0};
uint8_t duck[8]  = {0x0, 0xc, 0x1d, 0xf, 0xf, 0x6, 0x0};
uint8_t check[8] = {0x0, 0x1 ,0x3, 0x16, 0x1c, 0x8, 0x0};
uint8_t cross[8] = {0x0, 0x1b, 0xe, 0x4, 0xe, 0x1b, 0x0};
uint8_t retarrow[8] = {  0x1, 0x1, 0x5, 0x9, 0x1f, 0x8, 0x4};

void setup(){
  Serial.begin(115200);
  Wire.begin(D2, D1); 
  lcd.begin();

  lcd.createChar(0, bell);
  lcd.createChar(1, note);
  lcd.createChar(2, clock);
  lcd.createChar(3, heart);
  lcd.createChar(4, duck);
  lcd.createChar(5, check);
  lcd.createChar(6, cross);
  lcd.createChar(7, retarrow);
  
  lcd.home(); 
  lcd.print("Isaac's Clock   ");
  lcd.write(0);

  WiFi.begin(ssid, password);

  while ( WiFi.status() != WL_CONNECTED ) {
    delay ( 500 );
    Serial.print ( "." );
  }
  
  timeClient.begin();

}

void loop() {
  timeClient.update();
  Serial.print(daysOfTheWeek[timeClient.getDay()]);
  Serial.print(", ");
  Serial.print(timeClient.getHours());
  Serial.print(":");
  Serial.print(timeClient.getMinutes());
  Serial.print(":");
  Serial.println(timeClient.getSeconds());
  //Serial.println(timeClient.getFormattedTime());

  lcd.setCursor(0,1);
  lcd.print(timeClient.getFormattedTime());
  lcd.setCursor(11,1);  
  lcd.print(daysOfTheWeek[timeClient.getDay()]);

  displaySchedule();
  
  delay(1000);
}

void displaySchedule()
{
  lcd.setCursor(0,3);
  if(timeClient.getHours() == 23 && timeClient.getMinutes() >= 20 && timeClient.getMinutes() <= 30)
  {
    lcd.print("Test Schedule       ");
  }
  else if(timeClient.getHours() == 19 && timeClient.getMinutes() >= 50 && timeClient.getMinutes() <= 59)
  {
    lcd.print("Put your Pyjamas on ");
  }
  else if(timeClient.getHours() == 20 && timeClient.getMinutes() >= 00 && timeClient.getMinutes() <= 30)
  {
    lcd.print("Isaac Time! :-)     ");
  }
  else if(timeClient.getHours() == 20 && timeClient.getMinutes() >= 30 && timeClient.getMinutes() <= 59)
  {
    lcd.print("Bed time|Sleep time ");
  }
  else if(timeClient.getHours() == 07 && timeClient.getMinutes() >= 00 && timeClient.getMinutes() <= 29)
  {
    lcd.print("Morning! Breakfast  ");
  }
  else if(timeClient.getHours() == 07 && timeClient.getMinutes() >= 30 && timeClient.getMinutes() <= 59)
  {
    lcd.print("Get ready for School");
  }
  else
  {
    lcd.print("                    ");
  }
}