/* Fill-in information from Blynk Device Info here */
#define BLYNK_TEMPLATE_ID           "TMPL6JlvyMlkd"
#define BLYNK_TEMPLATE_NAME         "Quickstart Template"
#define BLYNK_AUTH_TOKEN            "wASkvdw63BlxIE-74arhG3TjkzuhNbth"
#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""
// Defining the WiFi channel speeds up the connection:
#define WIFI_CHANNEL 6
#define LDR_PIN 2
#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <ESP32Servo.h>
#include "DHTesp.h"
#include <LiquidCrystal_I2C.h>
#include "RTClib.h"

// Your WiFi credentials.
// Set password to "" for open networks.
const float GAMMA = 0.7;
const float RL10 = 50;
const int DHT_PIN = 15;
DHTesp dhtSensor;
Servo servo_9;
BlynkTimer timer;
RTC_DS1307 rtc;
LiquidCrystal_I2C lcd(0x27, 20, 4);

int lullabyMode = 0;
int sleepTime = 20;
// This function is called every time the Virtual Pin 0 state changes
BLYNK_WRITE(V0)
{
  // Set incoming value from pin V0 to a variable
  lullabyMode = param.asInt();
  if(lullabyMode==1){
    Blynk.virtualWrite(V1, "ON");
  }else{
    Blynk.virtualWrite(V1, "OFF");
  }
 
}
BLYNK_WRITE(V4)
{
  // Set incoming value from pin V0 to a variable
  sleepTime = param.asInt();
  lcd.setCursor(13, 3);
  lcd.print("  ");
  lcd.setCursor(13, 3);
  lcd.print(sleepTime); 
}
// This function is called every time the device is connected to the Blynk.Cloud
BLYNK_CONNECTED()
{
  // Change Web Link Button message to "Congratulations!"
  Blynk.setProperty(V3, "offImageUrl", "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations.png");
  Blynk.setProperty(V3, "onImageUrl",  "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations_pressed.png");
  Blynk.setProperty(V3, "url", "https://docs.blynk.io/en/getting-started/what-do-i-need-to-blynk/how-quickstart-device-was-made");
}


void myTimerEvent()
{
  int pos = 0;
  DateTime now = rtc.now();

  lcd.setCursor(14, 0);
  if((lullabyMode == 1) || (digitalRead(LDR_PIN) == !HIGH) || (now.hour()==sleepTime)){
    lcd.print("   ");
    lcd.setCursor(14, 0);
    lcd.print("ON");
    // Update state
    Blynk.virtualWrite(V1, "ON");
    for (pos = 90; pos <= 120; pos += 1) {
      servo_9.write(pos);
      delay(20); // Wait for 15 millisecond(s)
    }    
    for (pos = 120; pos >=60; pos -= 1) {
      servo_9.write(pos);
      delay(20); // Wait for 15 millisecond(s)
    }
    for (pos = 60; pos <= 90; pos += 1) {
      servo_9.write(pos);
      delay(20); // Wait for 15 millisecond(s)
    }
  }else{
    lcd.print("OFF");
    servo_9.write(90);
    Blynk.virtualWrite(V1, "OFF");
  }
}
void myTimerEvent2()
{
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  if (digitalRead(LDR_PIN) == !HIGH) {
    Serial.print("Baby crying ");
    Blynk.logEvent("babys_crying", "Baby's Crying");
  } else {
    Serial.print("baby sleeping");
  }
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Blynk.virtualWrite(V2, data.temperature);
  Blynk.virtualWrite(V3, data.humidity);
  lcd.setCursor(2, 1); 
  lcd.print("Temp: " + String(data.temperature, 2) + "°C"); 
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  lcd.setCursor(2, 2);  
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  lcd.print("Humidity: " + String(data.humidity, 1) + "%"); 
  if(data.temperature>40){
    Blynk.logEvent("room_condition_warning","Room is too hot");
  }else if(data.temperature <20){
    Blynk.logEvent("room_condition_warning","Room is too cold");
  }else if(data.humidity >70){
    Blynk.logEvent("room_condition_warning", "Room's humidity is too high");
  }
}


void setup()
{
  // Debug console
  Serial.begin(115200);
  Serial.print("Connecting to WiFi");
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD, WIFI_CHANNEL);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
  // Setup a function to be called every second
  Blynk.begin(BLYNK_AUTH_TOKEN, WIFI_SSID, WIFI_PASSWORD);
  servo_9.attach(4, 500, 2500);
  pinMode(LDR_PIN, INPUT);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  lcd.init();
  lcd.backlight();
  timer.setInterval(1000L, myTimerEvent);
  timer.setInterval(500L, myTimerEvent2);
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    abort();
  }
  //prepare LCD:
  //lullaby mode
  lcd.setCursor(1, 0);
  lcd.print("Lullaby mode:");
  //sleep time
  lcd.setCursor(1, 3);
  lcd.print("Sleep time: ");
  lcd.setCursor(13, 3);
  lcd.print(sleepTime);
  lcd.setCursor(15, 3);
  lcd.print("h"); 
}

void loop()
{
  Blynk.run();
  timer.run();
}