#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <BH1750.h>
#include <Servo.h>

#define DHT11_PIN 7
#define photoL1 A0
#define LED 3
#define button 2
#define buzzer 6
#define circleServoPin 9
#define tiltServoPin 10

BH1750 lightMeter;
DHT dht(DHT11_PIN, DHT11);
volatile int buttonState;
volatile int lightReadL1 = 0;
int count;
LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo circleServo;
Servo tiltServo;

void setup()
{
  Serial.begin(9600);
  Serial.print("setting up!\n");
  pinMode(LED, OUTPUT); //initialize digital pin LED as an output.
  pinMode(button, INPUT);
  pinMode(buzzer, OUTPUT);
  circleServo.attach(circleServoPin);
  tiltServo.attach(tiltServoPin);

  Serial.print("init lcd\n");
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.printstr("Hello, World!");
  lcd.setCursor(0,1);
  lcd.printstr("hello, Roald!");
  
  dht.begin(20);
  
  Serial.print("done setting up!\n");
  //Intialize the 12C bus
  Wire.begin();
  //On esp8266 you can select SCL and SDA pins using Wire.begin
  //For Wemos /Lolin D1 Mini Pro and the Ambient Light shield use
  Wire.begin();
  lightMeter.begin();
  Serial.println(F("BH1750 Test begin"));
}

void loop(){
  //Serial.print("[");
  //Serial.print(count);
  //Serial.print("] hey\n");
  
  delay(300);
  for (int i = 180; i > 0; i--) {
    circleServo.write(i);
    tiltServo.write(i);
    delay(10);
  }
  for (int i = 0; i < 180; i++) {
    circleServo.write(i);
    tiltServo.write(i);
    delay(10);
  }
  
  lightReadL1 = analogRead(photoL1);
  if (lightReadL1 > 300){
    digitalWrite(LED, HIGH);
  }
  else{
    digitalWrite(LED, LOW);
  }

  float lux = lightMeter.readLightLevel();
  float hum = dht.readTemperature();
  float temp = dht.readHumidity();
  {
    Serial.print("hum: ");
    Serial.print(hum);
    Serial.print("  temp: ");
    Serial.print(dht.convertCtoF(temp));
    Serial.print("  L1: ");
    Serial.print(lightReadL1);
    Serial.print(" PanL: ");
    Serial.print(lux);
    Serial.println("lx");
    delay(50);
  }

  //delay(100);
  
  //blink();

  buttonState = digitalRead(button);
  if(buttonState == 0) {
    digitalWrite(LED, HIGH);
    birthdaySong();
  } else {
    digitalWrite(LED, LOW);
  }
  //delay(100);
  
  //count++;
}

void birthdaySong() {
  tone(buzzer, 294);
  delay(250);
  tone(buzzer, 440);
  delay(250);
  tone(buzzer, 392);
  delay(250);
  tone(buzzer, 532);
  delay(250);
  tone(buzzer, 494);
  delay(500);
  tone(buzzer, 392);
  delay(250);
  tone(buzzer, 440);
  delay(250);
  tone(buzzer, 392);
  delay(250);
  noTone(buzzer);
  tone(buzzer, 587);
  delay(250);
  tone(buzzer, 532);
  delay(500);
  tone(buzzer, 392);
  delay(250);
  tone(buzzer, 784);
  delay(250);
  tone(buzzer, 659);
  delay(250);
  tone(buzzer, 532);
  delay(250);
  tone(buzzer, 494);
  delay(250);
  tone(buzzer, 440);
  delay(250);
  tone(buzzer, 698);
  delay(375);
  tone(buzzer, 659);
  delay(250);
  tone(buzzer, 532);
  delay(250);
  tone(buzzer, 587);
  delay(250);
  tone(buzzer, 532);
  delay(500);
  noTone(buzzer);
}

void blink()
{
  digitalWrite(LED,HIGH);  //turn the LED on (HIGH is the voltage level
  delay(1000);  //wait for a second
  digitalWrite(LED,LOW);  //turn the LED off by making the voltage LOW
  delay(1000);  //wait for a second
}