#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#include <string.h>
#include "tone_library.h"

#define SCREEN_WIDTH 128  // OLED display width, in pixels
#define SCREEN_HEIGHT 64 
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

const int soundpin = 2;
const int PIRpin = 4;
const int threshold = 400; // sets threshold value for sound sensor


void setup() {
  Serial.begin(115200);
  setBuzzer(5);
  pinMode(soundpin, INPUT);
  pinMode(PIRpin, INPUT_PULLUP);

  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for (;;)
      ;
  }


  delay(500);
  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(WHITE, BLACK);
  display.setCursor(0, 25);

}

void loop() {
  int soundSens = analogRead(soundpin); // reads analog data from sound sensor
  int motionDetected = digitalRead(PIRpin);
  Serial.printf("Sound: %d ; Motion: %d\n", soundSens, motionDetected);


  if (soundSens >= threshold && motionDetected){
    display.setCursor(0, 25);  
    display.print("RINGING!!");
    display.display();
    playRickRoll();
    delay(5000);

    display.clearDisplay();
    display.display();
  }

}