#include <WiFi.h>
#include <HTTPClient.h>
#include <ESP32Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""
#define WIFI_CHANNEL 6

Servo myservo;
LiquidCrystal_I2C lcd(0x27, 20, 4);

const int ledPin = 2;
const int buttonPin = 4;
const int servoPin = 14;
const int sdaPin = 25;
const int sclPin = 26; 
const int buzzerPin = 12;

bool doorLocked = true;

void updateLcd(const char* message) {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Door Status:");
  lcd.setCursor(0, 1);
  lcd.print(doorLocked ? "Unlocked" : "Locked");
  lcd.setCursor(0, 2);
  lcd.print("Validation:");
  lcd.setCursor(0, 3);
  lcd.print(message);
}

void sendPostRequest() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin("http://10.200.225.34:3000/api/door-status"); // Ganti <YOUR_PC_IP> dengan IP komputer Anda
    http.addHeader("Content-Type", "application/json");
    String payload = "{\"id\":\"001\",\"kode\":\"A1\"}"; // Ganti dengan ID dan Kode yang sesuai
    int httpResponseCode = http.POST(payload);
    if (httpResponseCode > 0) {  
      String response = http.getString();
      Serial.println(httpResponseCode);
      Serial.println(response);
      updateLcd(response.c_str());
    } else {
      Serial.println("{\"id\":\"001\",\"kode\":\"A1\"}");
      // Serial.println(httpResponseCode);
    }
    http.end();
  } else {
    Serial.println("WiFi Disconnected");
  }
}

void toggleDoor() {
  doorLocked = !doorLocked;
  digitalWrite(buzzerPin, HIGH);
  delay(50);
  digitalWrite(buzzerPin, LOW);
  if (doorLocked) {
    digitalWrite(ledPin, HIGH);
    myservo.write(0);
  } else {
    digitalWrite(ledPin, LOW);
    myservo.write(90);
  }
  updateLcd("Connected");
  sendPostRequest();
}

void setup(void) {
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);
  pinMode(buzzerPin, OUTPUT);
  myservo.attach(servoPin);
  Serial.begin(115200);
  Wire.begin(sdaPin, sclPin);
  lcd.begin(20, 4);
  lcd.backlight();
  updateLcd("Connecting...");
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD, WIFI_CHANNEL);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
  updateLcd("Connected");
}

void loop(void) {
  if (digitalRead(buttonPin) == LOW) {
    delay(5);
    if (digitalRead(buttonPin) == LOW) {
      toggleDoor();
      while (digitalRead(buttonPin) == LOW);
      delay(5);
    }
  }
}