/*

Screens:
1 - Main Home Screen
2 - Manual Seeding

*/

#include <LiquidCrystal_I2C.h>
#include "uRTCLib.h"

//Define Variables
int x, y = 0, hour, screen = 1;
bool atHome;

char daysOfTheWeek[7][12] = { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun" };

// Define the Main objects
LiquidCrystal_I2C lcd(0x27, 20, 4);  // set the LCD address to 0x27 for a 20x4 display
uRTCLib rtc(0x68);                   // set RTC adress to 0x68 for DS 1307 Module

void setup() {
  URTCLIB_WIRE.begin();
  lcd.init();  // Initialize the I2C LCD

  lcd.clear(); // Clear LCD Screen
  lcd.backlight(); // Turn on backlight (In case if not already on)
  pinMode(2, INPUT); // Main input switch
  
  rtc.set(0, 16, 17, 1, 8, 4, 24); // Set RTC Data
  
  /*
  How to set RTC Time (format)
  rtc.set(second, minute, hour, dayOfWeek, dayOfMonth, month, year)
  Numbers for day of week (1=Monday, 7=Sunday)
  */
  
  lcd.setCursor(4, 1);
  lcd.print("HOME FARMER");
  delay(2000);
  lcd.clear();
}

void loop() {

  x = digitalRead(2); // Assign variable to read Watering input switch

  // RTC refresh
  rtc.refresh();
  
  switch(screen) {
  	case 1: // Normal Screen
  		// LCD Line 1 (Advertisement)
  		lcd.setCursor(4, 0);
  		lcd.print("Home Farmer");
  		
    	// LCD Line 2 (RTC)
  		// Date
  		lcd.setCursor(0, 1);
  		lcd.print(rtc.day());
  		lcd.print('/');
  		lcd.print(rtc.month());
  		lcd.print('/');
  		lcd.print(rtc.year());
	
  		// Day of the Week
  		lcd.setCursor(14, 1);
 			lcd.print(" (");
  		lcd.print(daysOfTheWeek[rtc.dayOfWeek() - 1]);
  		lcd.print(") ");
	
  		// Time (24 Hours)
 			lcd.setCursor(8, 1);
  		lcd.print(rtc.hour());
  		lcd.print(":");
  		lcd.print(rtc.minute());
			lcd.setCursor(10, 1);
    	lcd.print(" ");
    	delay(500);
    	lcd.setCursor(10, 1);
    	lcd.print(":");
			delay(500);
    	
    	// Screen Shifting if Button at Pin 2 Pressed
    	if(x == 1) {
    		screen = 2;
				lcd.clear();
				delay(200);
  		}
  	break;
    case 2: // Seeding
    	// Advertisement
    	lcd.setCursor(4, 0);
    	lcd.print("Home Farmer");

			// Seeding Question
			lcd.setCursor(3, 2);
			lcd.print("Start Seeding?");     
    	

    break;
  }
  
}