#define BLYNK_TEMPLATE_ID "TMPL64N6YLX1h"  //these two are from blynk template
#define BLYNK_TEMPLATE_NAME "Medicine Test"
#define BLYNK_AUTH_TOKEN "XW0Bxb8MA0d52NcIff_Wobxc1Aua_in6"  //this is from device

#define BLYNK_PRINT Serial

#include <ESP8266_Lib.h>               //wifi module
#include <BlynkSimpleShieldEsp8266.h>  //wifi app
#include <TimeLib.h>                   //these two are for wifi based RTC
#include <WidgetRTC.h>
#include <Stepper.h>  //stepper motor
#include <Wire.h>
#include <LiquidCrystal_I2C.h>  //lcd
#include "pitches.h"            // for the buzzer

// Set password to "" for open networks.
char ssid[] = "BSC-F2";
char pass[] = "bsc@2030";


// Hardware Serial on Mega, Leonardo, Micro...
// On Mega Serial1 is pins 18 and 19
#define EspSerial Serial1

// or Software Serial on Uno, Nano...
//#include <SoftwareSerial.h>
//SoftwareSerial EspSerial(6, 7);
// These are arduino's RX, TX.  Don't connect the reset pin

BlynkTimer timer;      //initiate timer function for blynk
WidgetRTC rtc;         //wifi based RTC

//Record
#define Record_Button 34
const int Record_LED = 38;
//LED for when pill is ready for taking
#define Ready_Led 53
//LEDs for when pills remaining are less than 5
#define Pills_Low_1 50
#define Pills_Low_2 51
#define Pills_Low_3 52

#define Tilt_Switch 22

#define Record_Button 34  // the number of the pushbutton pin
int buttonState = 0;

#define PLAY_E 2                     // defining pin 2 to playPack_edge for the speaker
LiquidCrystal_I2C lcd(0x27, 16, 2);  //I2C LCD definition. 0x27 is address, 16 is rows, 2 is columns

const int stepsPerRevolution = 2048;  // change this to fit the number of steps per revolution
int rpm = 15;                         //seems to be optimal
int rpm_2 = 7;
int rpm_3 = 13;                         //for the third motor since its week

//Defining stepper motor pins. last 3 must be PWM
Stepper Stepper3(stepsPerRevolution, 8, 10, 9, 11);

Stepper Stepper2(stepsPerRevolution, 4, 3, 5, 6);

Stepper Stepper1(stepsPerRevolution, 46, 44, 45, 47);

// define the pins of the joy stick.
int xPin = A2;
int yPin = A3;
#define Joystick_Button 28

int Joystick_Button_State = 0;

// define veriables to the values, to read later.
int xPosition = 0;
int yPosition = 0;

// map function sets the limits for the joy stick
int mapX = 0;
int mapY = 0;

#define ESP8266_BAUD 9600

ESP8266 wifi(&EspSerial);

//Medicine Data (There should be a better way)
String Medicine1_Name = "Nexium";
String Medicine2_Name = "Tic Tac";
String Medicine3_Name = "Cipralex";

byte Medicine1_Pills = 40;
byte Medicine2_Pills = 3;
byte Medicine3_Pills = 25;

int Add_Med_1 = 0;
int Add_Med_2 = 0;
int Add_Med_3 = 0;

byte Medicine1_Hours1 = 12;
byte Medicine1_Minutes1 = 27;
byte Medicine1_Hours2 = 14;
byte Medicine1_Minutes2 = 0;
byte Medicine1_Hours3 = 21;
byte Medicine1_Minutes3 = 24;

byte Medicine2_Hours1 = 8;
byte Medicine2_Minutes1 = 20;
byte Medicine2_Hours2 = 12;
byte Medicine2_Minutes2 = 20;
byte Medicine2_Hours3 = 21;
byte Medicine2_Minutes3 = 25;

byte Medicine3_Hours1 = 10;
byte Medicine3_Minutes1 = 52;
byte Medicine3_Hours2 = 13;
byte Medicine3_Minutes2 = 56;
byte Medicine3_Hours3 = 18;
byte Medicine3_Minutes3 = 19;

//for the buzzer
int melody[] = {
  NOTE_C4, NOTE_E4, NOTE_G4, NOTE_C5, NOTE_G4, NOTE_E4, NOTE_C4,
  NOTE_E4, NOTE_G4, NOTE_B4, NOTE_D5, NOTE_B4, NOTE_G4, NOTE_E4
};

int noteDurations[] = {
  8, 8, 8, 4, 8, 8, 8,
  8, 8, 8, 4, 8, 8, 8
};

int dispense1 = 0;
int dispense2 = 0;
int dispense3 = 0;
BLYNK_CONNECTED() {
  // Synchronize time on connection
  rtc.begin();
}

BLYNK_WRITE(V4) {
  // These functions are used to receive data from the web.
  // They are called when the datastream V4 value changes.
  // They assign incoming value from pin V4 to a variable
  // according to the datastream data type
  int Add_Med_1 = param.asInt();

  Medicine1_Pills = Medicine1_Pills + Add_Med_1; //This is for adding more pills
}

BLYNK_WRITE(V5) {
  int Add_Med_2 = param.asInt();

  Medicine2_Pills = Medicine2_Pills + Add_Med_2;
}

BLYNK_WRITE(V6) {
  int Add_Med_3 = param.asInt();

  Medicine3_Pills = Medicine3_Pills + Add_Med_3;
}

BLYNK_WRITE(V10) {
  //This is for the dispensing buttons on the app
  int Dispense_1 = param.asInt();

  dispense1 = Dispense_1;
}

BLYNK_WRITE(V11) {
  int Dispense_2 = param.asInt();

  dispense2 = Dispense_2;
}

BLYNK_WRITE(V12) {
  int Dispense_3 = param.asInt();

  dispense3 = Dispense_3;
}

void myTimer() {
  // This function describes what will happen with each timer tick.
  //I am using it to send the pill count to the web app, by assigning them to virtual pins on blynk
  Blynk.virtualWrite(V1, Medicine1_Pills); //This function is used to send data to the web
  Blynk.virtualWrite(V2, Medicine2_Pills);
  Blynk.virtualWrite(V3, Medicine3_Pills);
}

void setup() {
  Serial.begin(9600);
  EspSerial.begin(ESP8266_BAUD); //make sure this is the same as serial baud rate
  delay(10);

  //Blynk.begin(BLYNK_AUTH_TOKEN, wifi, ssid, pass);  //This is the normal setting
  // You can also specify server:
  Blynk.begin(BLYNK_AUTH_TOKEN, wifi, ssid, pass, "blynk.cloud", 80);  // I like to use the new blynk cloud server
  //Blynk.begin(BLYNK_AUTH_TOKEN, wifi, ssid, pass, IPAddress(192,168,1,100), 8080);

  //time interval between sending data to blynk cloud
  timer.setInterval(1000L, myTimer);  //This means the web app updates every second

  setSyncInterval(10 * 60);  // wifi RTC Sync interval in seconds (10 minutes)

  Stepper1.setSpeed(rpm);
  Stepper2.setSpeed(rpm_2);
  Stepper3.setSpeed(rpm_3);

  lcd.init();       // initilize the screen
  lcd.backlight();  // Turn on the light of the screen
  lcd.clear();      // Clears any previous data in the screen

  // define the state of the pins
  pinMode(xPin, INPUT);
  pinMode(yPin, INPUT);
  pinMode(Joystick_Button, INPUT);

  pinMode(Tilt_Switch, INPUT);
  digitalWrite(Tilt_Switch, HIGH); //not sure why

  // initialize the LED pin as an output:
  pinMode(Record_LED, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(Record_Button, INPUT);
  // define the speaker pin
  pinMode(PLAY_E, OUTPUT);
  //this is the green LED
  pinMode(Ready_Led, OUTPUT);

}

void loop() {
  Blynk.run();  //This starts the wifi stuff from the blynk library
  timer.run();  //timer for wifi to send data not too frequently

  //Screen and Analog:
  xPosition = analogRead(xPin);
  yPosition = analogRead(yPin);

  // target = map(source, sourceLow, sourceHigh, targetLow, targetHigh)
  mapX = map(xPosition, 0, 1023, -512, 512);
  mapY = map(yPosition, 0, 1023, -512, 512);

//Down
  if ((mapX < -200) && (mapY > - 200)) {
    lcd.setCursor(0, 0);
    lcd.print("                ");
    lcd.setCursor(0, 0);
    lcd.print("Made By: Hassan");
    lcd.setCursor(0, 1);
    lcd.print("                ");
    lcd.setCursor(0, 1);
    lcd.print("Ali, Saeed, Sara");
  }

//Up
  if ((mapX > 200) && (mapY < 200)) {
    lcd.setCursor(0, 0);
    lcd.print("                ");
    lcd.setCursor(0, 0);
    lcd.print(Medicine2_Name);

    lcd.setCursor(0, 1);
    lcd.print("                ");
    lcd.setCursor(0, 1);
    lcd.print("Pills Left: ");

    lcd.setCursor(13, 1);
    lcd.print(Medicine2_Pills);
  }

//Left
  if ((mapX < 200) && (mapY < -200)) {
    lcd.setCursor(0, 0);
    lcd.print("                ");
    lcd.setCursor(0, 0);
    lcd.print(Medicine1_Name);

    lcd.setCursor(0, 1);
    lcd.print("                ");
    lcd.setCursor(0, 1);
    lcd.print("Pills Left: ");

    lcd.setCursor(13, 1);
    lcd.print(Medicine1_Pills);
  }

//Right
  if ((mapX > -200) && (mapY > 200)) {
    lcd.setCursor(0, 0);
    lcd.print("                ");
    lcd.setCursor(0, 0);
    lcd.print(Medicine3_Name);

    lcd.setCursor(0, 1);
    lcd.print("                ");
    lcd.setCursor(0, 1);
    lcd.print("Pills Left: ");

    lcd.setCursor(13, 1);
    lcd.print(Medicine3_Pills);
  }

  //Medicine One Trigger
  if ( ( (hour() == Medicine1_Hours1) && (minute() == Medicine1_Minutes1) && (second() == 0)) || 
       ( (hour() == Medicine1_Hours2) && (minute() == Medicine1_Minutes2) && (second() == 0)) || 
       ( (hour() == Medicine1_Hours3) && (minute() == Medicine1_Minutes3) && (second() == 0)) ||
       ( dispense1 == 1 ) ) //this is the dispense button on the app
  {
    Blynk.logEvent("medicine_time");
    Serial.println("Medicine1 Time");
    Medicine1_Pills--;  //reduces pill count by 1
    Serial.println(Medicine1_Pills);
    digitalWrite(Ready_Led, HIGH);  //make green led turn on

    //below is the buzzer code
    for (int thisNote = 0; thisNote < 8; thisNote++) {
      int noteDuration = 1000 / noteDurations[thisNote];
      tone(13, melody[thisNote], noteDuration);

      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      noTone(8);
    }
    Stepper1.step(stepsPerRevolution);
  }

  //Medicine two trigger
  if ( ( (hour() == Medicine2_Hours1) && (minute() == Medicine2_Minutes1) && (second() == 0)) || 
       ( (hour() == Medicine2_Hours2) && (minute() == Medicine2_Minutes2) && (second() == 0)) || 
       ( (hour() == Medicine2_Hours3) && (minute() == Medicine2_Minutes3) && (second() == 0)) ||
       ( dispense2 == 1 ) ) 
  {
    Blynk.logEvent("medicine_time");
    
    Serial.println("Medicine2 Time");
    Medicine2_Pills--;  //reduces pill count by 1
    Serial.println(Medicine2_Pills);
    digitalWrite(Ready_Led, HIGH);  //make led turn on

    for (int thisNote = 0; thisNote < 8; thisNote++) {
      int noteDuration = 1000 / noteDurations[thisNote];
      tone(13, melody[thisNote], noteDuration);

      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      noTone(8);
    }

    Stepper2.step(-stepsPerRevolution*1.1);  //for some reason this motors turns in the opposite direction
  }

  //Medicine three trigger
  if ( ( (hour() == Medicine3_Hours1) && (minute() == Medicine3_Minutes1) && (second() == 0)) ||
       ( (hour() == Medicine3_Hours2) && (minute() == Medicine3_Minutes2) && (second() == 0)) ||
       ( (hour() == Medicine3_Hours3) && (minute() == Medicine3_Minutes3) && (second() == 0)) ||
         ( dispense3 == 1 ) ) 
  {
    Blynk.logEvent("medicine_time");
    Serial.println("Medicine3 Time");
    Medicine3_Pills--;  //reduces pill count by 1
    Serial.println(Medicine3_Pills);
    digitalWrite(Ready_Led, HIGH);  //make led turn on

    for (int thisNote = 0; thisNote < 8; thisNote++) {
      int noteDuration = 1000 / noteDurations[thisNote];
      tone(13, melody[thisNote], noteDuration);

      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      noTone(8);
    }

    Stepper3.step(stepsPerRevolution*1.1);
  }

//For the record button and LED. The recording pin on the speaker is wired in series (no code needed)
buttonState = digitalRead(Record_Button);
  if (buttonState == HIGH) {
    digitalWrite(Record_LED, HIGH);  //this is the red LED.
  } else {
    digitalWrite(Record_LED, LOW);
  }

//For the door speaker
  if (digitalRead(Tilt_Switch) == LOW) {
    digitalWrite(PLAY_E, HIGH);  //play speaker
    delay(500);
    digitalWrite(PLAY_E, LOW);
    digitalWrite(Ready_Led, LOW);  //make green led turn off
  }

  //Medicine Low Notifications and LED
  if (Medicine1_Pills < 5) {
    Blynk.logEvent("low_medicine_1");
    digitalWrite(Pills_Low_1, HIGH);
  } else {
    digitalWrite(Pills_Low_1, LOW);
  }

  if (Medicine2_Pills < 5) {
    Blynk.logEvent("low_medicine_2");
    digitalWrite(Pills_Low_2, HIGH);

  } else {
    digitalWrite(Pills_Low_2, LOW);
  }

  if (Medicine3_Pills < 5) {
    Blynk.logEvent("low_medicine_3");
    digitalWrite(Pills_Low_3, HIGH);
  } else {
    digitalWrite(Pills_Low_3, LOW);
  }
}