// Creative Project 1: Ian Lee
// 1/29/16, CMU-Designing for IOT
// Project: Downton Abby Viewing Party Bot

// Goal: Create an IOT Device that signals when and if Downton Abby is on notifies my wife and her friends via SMS 15 minutes prior to watch.
// At start time, photosensor then signals and alerts if TV is not turned on. TV State is logged to Google Drive.

// Project Components
	// 1. Particle Photon
	// 2. 3 Single Color LEDs
	// 3. 1 Photosensor
	// 4. 4 Resisters


// variables
	// Signal Elements
		// LED Pins
			int ledPinRed = D0; // RED (TV IS OFF AND SHOULD BE ON)
			int ledPinBlue = D1; // BLUE (DOWNTON ABBY IS ON NOW)
			int ledPinYellow = D2; //YELLOW (PROGRAM RUNNING)
	// Photo Resistor
			int photoCellPin = A0;
	// Store the sensor reading
			int photoCellReading = 0;
	// threshold for being on
			int threshold = 350;
	// hold a state to say if TV is on or not
			bool isOn = false;
	// store how bright the LED should be
			int ledBrightness = 0;
			int ledBrightness2 =0;
	// store the time value since it was first covered
			long timeSinceFirstThreshold = 0 ;
	// Time Store For When to Send Reminder SMS Messages
			int dayOfInterest1 = 6;
			int hourOfInterest1 = 23;
			int minuteOfInterest1 = 0;
	// Time Store for When Downton Abbey is On
			int dayOfInterest2 = 6;
			int hourOfInterest2 = 23;
			int minuteOfInterest2 = 0;
	// Time Store for When to Check TV Status
			int dayOfInterest3 = 6;
			int hourOfInterest3 = 23;
			int minuteOfInterest3 = 0;

// setup
void setup()
			{  // define the LED as output
			 	pinMode( ledPinRed , OUTPUT );
			 	pinMode (ledPinBlue, OUTPUT);
				pinMode (ledPinYellow, OUTPUT);

			 	// connect the photo cell reading to the cloud
			 	Particle.variable( "light", &photoCellReading, INT );

				Time.zone( -5 );

			 	Serial.begin( 9600 );
			}

// loop
void loop()
		{
		// STATUS LED
		digitalWrite( ledPinYellow, HIGH);
		delay(1000);
		digitalWrite( ledPinYellow, LOW);
		delay (1000);
		// reading from the sensor
		photoCellReading = analogRead( photoCellPin );
		Particle.variable( "light", &photoCellReading, INT );

		// TV STATUS AT SHOWTIME
		if (Time.weekday() == dayOfInterest2 && Time.hour() == hourOfInterest2 && Time.minute() >= minuteOfInterest2 ){
		// see if TV is on
		 if( photoCellReading < threshold ){
				isOn = false;
				ledBrightness = 255;
				Particle.publish("Missing_Downton", "Yes"); //If covered, write to cloud to kick of IFTTT
				delay (10000);
				}
			if( photoCellReading > threshold){ //If not covered, turn of LED indicator
				isOn = true;
				ledBrightness = 0;
				}
		}

		digitalWrite( ledPinRed , ledBrightness);

// SERIAL READINGS FOR DEBUGGING
		Serial.print( "Sensor reading is: " );
		Serial.println( photoCellReading );
		delay( 50 );

// SEND SMS REMINDER ALERT
	if (Time.weekday()==dayOfInterest1 && Time.hour() == hourOfInterest1 && Time.minute() >= minuteOfInterest1  ){
		Particle.publish("Downton_Alert", "Yes");
		delay (10000);
		}

// INDICATE IF DOWNTON IS ON
	if( (Time.weekday() == dayOfInterest2 && Time.hour() == hourOfInterest2 && Time.minute() >= minuteOfInterest2 )){
	digitalWrite( ledPinBlue, HIGH);
		}}