#include <IRremote.h>
#include <LiquidCrystal.h>
#include <Servo.h>

#define PIN_RECEIVER 2   // Signal Pin of IR receiver

Servo sev_1;
float pos = 0.0; // Variable where the arm's position will be stored (in degrees)
float step = 1.0;
int ledPin = 13;                // choose the pin for the LED
int inputPin = 4;
int buzzer = 5;
int ring = 6;                // choose the input pin (for PIR sensor)
int pirState = LOW;             // we start, assuming no motion detected
int val = 0;             // Variable used for the arm's position step
IRrecv receiver(PIN_RECEIVER);

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

void setup()
{
  sev_1.attach(3);
  sev_1.write(pos); // Initialize the arm's position to 0 (leftmost)
  lcd.begin(16, 2);
  lcd.print("<press a button>");
  receiver.enableIRIn();
  pinMode(ledPin, OUTPUT);      // declare LED as output
  pinMode(inputPin, INPUT);
  pinMode(buzzer, OUTPUT); 
  pinMode(ring, OUTPUT);
  Serial.begin(9600); // Start the receiver
}

void loop()
{
  // Checks received an IR signal
  if (receiver.decode()) {
    translateIR();
    receiver.resume();  // Receive the next value
  }
  val = digitalRead(inputPin);  // read input value
  if (val == HIGH) {            // check if the input is HIGH
    digitalWrite(ledPin, HIGH);
    digitalWrite(buzzer, HIGH);
    digitalWrite(ring, HIGH);  // turn LED ON
    if (pirState == LOW) {
      // we have just turned on
      Serial.println("Motion detected!");
      // We only want to print on the output change, not state
      pirState = HIGH;
    }
  } else {
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzer, LOW);
    digitalWrite(ring, LOW); // turn LED OFF
    if (pirState == HIGH) {
      // we have just turned of
      Serial.println("Motion ended!");
      // We only want to print on the output change, not state
      pirState = LOW;
    }
  }
}

void lcdPrint(char* text)
{
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("button pressed:");
  lcd.setCursor(0, 1);
  lcd.print(text);
  lcd.print(" code: ");
  lcd.print(receiver.decodedIRData.command);
}

void translateIR()
{
  // Takes command based on IR code received
  switch (receiver.decodedIRData.command) {
    case 162:
      digitalWrite(ledPin, HIGH);
      digitalWrite(buzzer, HIGH);
      digitalWrite(ring, HIGH);
      delay(10000);
      break;
    case 226:
      digitalWrite(ledPin, LOW);
      digitalWrite(buzzer, LOW);
      digitalWrite(ring, LOW);
      delay(10000);
      break;
    case 34:
      lcdPrint("TEST");
      break;
    case 2:
      lcdPrint("PLUS");
      break;
    case 194:
      lcdPrint("BACK");
      break;
    case 224:
      lcdPrint("PREV.");
      break;
    case 168:
      lcdPrint("PLAY");
      break;
    case 144:
      lcdPrint("NEXT");
      break;
    case 104:
      lcdPrint("num: 0");
      break;
    case 152:
      if (pos<180) // Check that the position won't go higher than 180°
    {
      sev_1.write(pos); // Set the arm's position to "pos" value
      pos+=(step+5); // Increment "pos" of "step" value
      delay(0.1); // Wait 5ms for the arm to reach the position
    }
      break;
    case 176:
      if (pos>0) // Check that the position won't go lower than 0°
    {
      sev_1.write(pos); // Set the arm's position to "pos" value
      pos-=(step+5); // Decrement "pos" of "step" value
      delay(0.1); // Wait 5ms for the arm to reach the position
    }
      break;
    case 48:
      for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
      sev_1.write(pos);              // tell servo to go to position in variable 'pos'
      delay(15);                       // waits 15ms for the servo to reach the position
    }
      break;
    case 24:
      for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
      sev_1.write(pos);              // tell servo to go to position in variable 'pos'
      delay(15);                       // waits 15ms for the servo to reach the position
    }
      break;
    case 122:
      lcdPrint("num: 3");
      break;
    case 16:
      lcdPrint("num: 4");
      break;
    case 56:
      lcdPrint("num: 5");
      break;
    case 90:
      lcdPrint("num: 6");
      break;
    case 66:
      lcdPrint("num: 7");
      break;
    case 74:
      lcdPrint("num: 8");
      break;
    case 82:
      lcdPrint("num: 9");
      break;
    default:
      lcd.clear();
      lcd.print(receiver.decodedIRData.command);
      lcd.print(" other button");
  }
}