#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <ESPDash.h>
#include <SPI.h>
#include <Wire.h>
#include "MQ135.h"
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

/* Your Soft AP WiFi Credentials */
const char *ssid = "IoT Smart Kitchen"; // WiFi Name
const char* password = "1234567890"; // Password

#define SCREEN_WIDTH 128    // OLED display width, in pixels
#define SCREEN_HEIGHT 64    // OLED display height, in pixels
#define OLED_RESET -1       // Reset pin # (or -1 if sharing Arduino reset pin)
#define DHTTYPE DHT22       // DHT 22
#define DHTPIN D4           //DHT22 Pin D4(GPIO 2)
#define relay1 D5           // Lampu D5(GPIO 14)
#define relay2 D6           // Kulkas D6(GPIO 12)
#define relay3 D3           // Pompa D7(GPIO 13)
#define relay4 D8           // Kipas D8(GPIO 15)
#define buzzer 10           //Buzzer Pin(GPIO 10)
#define PIR D7              //PIR Sensor Pin D3(GPIO 0)
#define Api D0              // Flame sensor Pin D0

#define MQ135_PIN A0  // Pin analog yang digunakan untuk sensor MQ135
#define RLOAD 10.0    // Nilai resistansi beban (10kΩ)
#define VCC 5.0 

MQ135 gasSensor(MQ135_PIN);
float R0 = 0.41; // Nilai R0 yang telah dikalibrasi, sesuaikan dengan hasil kalibrasi 

int pompa_air; 
int alarm_status;
int pir_status = 0;
int flame_sensor = 0;
 
DHT dht(DHTPIN, DHTTYPE);
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

/* Start Webserver */
AsyncWebServer server(80);

/* Attach ESP-DASH to AsyncWebServer */
/* ESPDash dashboard(&server);  */ /*Bisa Mengunakan IP Default  */
ESPDash dashboard(&server, "/rezainalvito-e32210750-smartkitchen");
/* 
  Dashboard Cards 
  Format - (Dashboard Instance, Card Type, Card Name, Card Symbol(optional) )
*/
Card AIQ(&dashboard, GENERIC_CARD, "Index Kualitas Udara", "PPM");
Card temperature(&dashboard, TEMPERATURE_CARD, "Temperatur", "°C");
Card humidity(&dashboard, HUMIDITY_CARD, "Kelembaban", "%");
Card Buzzer(&dashboard, STATUS_CARD, "Alarm");
Card Motion_PIR(&dashboard, STATUS_CARD, "Objek");
Card Motion_Flame(&dashboard, STATUS_CARD, "Api");
Card light(&dashboard, BUTTON_CARD, "Lampu");
Card fridge(&dashboard, BUTTON_CARD, "Kulkas");
Card oven(&dashboard, BUTTON_CARD, "Pompa");
Card fan(&dashboard, BUTTON_CARD, "Kipas");


void setup() {
  Serial.begin(115200);

  /* Connect WiFi */
  WiFi.softAP(ssid, password);
  Serial.print("IP address: ");
  Serial.println(WiFi.softAPIP());
  /* Start AsyncWebServer */
  server.begin();
  
  dht.begin();
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
 
  pinMode(PIR, INPUT);
  pinMode(Api, INPUT);
  pinMode(buzzer, OUTPUT);
  //pinMode(pompa, OUTPUT);
  pinMode(relay1, OUTPUT);
  pinMode(relay2, OUTPUT);
  pinMode(relay3, OUTPUT);
  pinMode(relay4, OUTPUT);

  digitalWrite(buzzer, LOW);
  //digitalWrite(pompa, LOW);
  digitalWrite(relay1, HIGH);
  digitalWrite(relay2, HIGH);
  digitalWrite(relay3, HIGH);
  digitalWrite(relay4, HIGH);
  delay(100);
}

void loop() {
  // Baca nilai resistansi sensor (Rs)
  int sensorValue = analogRead(MQ135_PIN);
  float voltage = sensorValue * (VCC / 1023.0); // Konversi nilai bacaan analog ke tegangan (dalam volt)
  float Rs = (VCC - voltage) / voltage * RLOAD;

  // Hitung PPM menggunakan rumus yang sesuai
  float PPM = pow(10, ((log10(Rs / R0) - 0.12) / -0.27));

  // Tampilkan hasil PPM
  Serial.print("Nilai PPM: ");
  Serial.println(PPM);
 
  float t = dht.readTemperature();
  float h = dht.readHumidity();
 
  pir_status = digitalRead(PIR);
  flame_sensor = digitalRead(Api);
  alarm_status = digitalRead(buzzer);
  //pompa_air = digitalRead(pompa);
 
  if (t > 30) {
    // Suhu melebihi 30 derajat Celsius
    display.clearDisplay();
    display.setCursor(0, 0);
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.println("Kondisi Suhu Saat Ini");
    
    display.setCursor(0, 20); //oled display
    display.setTextSize(2);
    display.setTextColor(WHITE);
    display.println("Panas");
    display.display();
    delay(1500);
  } else if (t < 30) {
    // Suhu di bawah 30 derajat Celsius
    display.clearDisplay();
    display.setCursor(0, 0);
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.println("Kondisi Suhu Saat Ini:");
    
    display.setCursor(0, 20); //oled display
    display.setTextSize(2);
    display.setTextColor(WHITE);
    display.println("Normal");
    display.display();
    delay(1500);
  }
 
  if (pir_status == 1)
  {
    Serial.println("Terdeteksi");
    Motion_PIR.update("Terdeteksi", "s");
    dashboard.sendUpdates();
  }
  else if (pir_status == 0)
  {
    Serial.println("Tidak Terdeteksi Objek");
    Motion_PIR.update("Tidak Terdeteksi", "d");
    dashboard.sendUpdates();
  }
 
  if (flame_sensor == 1)
  {
    //digitalWrite(buzzer, HIGH);
    digitalWrite(relay3, LOW);
    Motion_Flame.update("Bahaya Timbul Api", "d");
    //Buzzer.update("Aktif", "w");
    oven.update(HIGH);
    dashboard.sendUpdates();
  }
  else if (flame_sensor == 0)
  {
    //digitalWrite(buzzer, LOW);
    digitalWrite(relay3, HIGH);
    Motion_Flame.update("Situasi Aman", "s");
    //Buzzer.update("Mati", "s");
    oven.update(LOW);
    dashboard.sendUpdates();
  }

  if (PPM> 150)
  {
    digitalWrite(buzzer, HIGH);
    digitalWrite(relay4, LOW);
    Buzzer.update("Aktif", "w");
    fan.update(HIGH);
    dashboard.sendUpdates();
    
    display.clearDisplay();
    display.setCursor(0, 0);
    display.setTextSize(2);
    display.setTextColor(WHITE);
    display.println("Terdeteksi");
    
    display.setCursor(0, 20); //oled display
    display.setTextSize(2);
    display.setTextColor(WHITE);
    display.println("Kebocoran");

    display.setCursor(0, 40); //oled display
    display.setTextSize(2);
    display.setTextColor(WHITE);
    display.println("Gas");
    
    display.display();
    delay(1500);
  }
  else
  {
    digitalWrite(buzzer, LOW);
    digitalWrite(relay4, HIGH);
    Serial.println("Buzzer Status: OFF");
    Serial.println("Exhaust Fan: OFF");
    Buzzer.update("Mati", "s");
    fan.update(LOW);
    dashboard.sendUpdates();
  }
  
  temperature.update(t);
  humidity.update(h);
  AIQ.update(PPM);
//Button for Light
  light.attachCallback([&](bool value){
  Serial.println("[light] Button Callback Triggered: "+String((value)?"HIGH":"LOW"));
  digitalWrite(relay1, (value));
  light.update(value);
  dashboard.sendUpdates();
});
//Button for Fridge
  fridge.attachCallback([&](bool value){
  Serial.println("[fridge] Button Callback Triggered: "+String((value)?"HIGH":"LOW"));
  digitalWrite(relay2, (value));
  fridge.update(value);
  dashboard.sendUpdates();
});
//Button for Oven
  oven.attachCallback([&](bool value){
  Serial.println("[oven] Button Callback Triggered: "+String((value)?"HIGH":"LOW"));
  digitalWrite(relay3, (value));
  oven.update(value);
  dashboard.sendUpdates();
});
//Button for Fan
  fan.attachCallback([&](bool value){
  Serial.println("[fan] Button Callback Triggered: "+String((value)?"HIGH":"LOW"));
  digitalWrite(relay4, (value));
  fan.update(value);
  dashboard.sendUpdates();
});
  /* Send Updates to our Dashboard (realtime) */
  dashboard.sendUpdates();
  dashboard.setAuthentication("rezainalvito", "12121212");
  delay(1500);

  // Display Rezainal Vito
  display.clearDisplay();
  display.setCursor(0, 0);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.println("Dapur Pintar - IoT");

  display.setCursor(0, 20);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.println("Rezainal Vito");

  display.setCursor(0, 35);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.println("E32210750");

  display.setCursor(0, 50);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.println("Teknik Komputer");
  
  display.display();
  delay(2000);

  // display temperature
  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0, 0);
  display.print("Temperature: ");
  display.setTextSize(2);
  display.setCursor(0, 10);
  display.print(t);
  display.print(" ");
  display.setTextSize(1);
  display.cp437(true);
  display.write(167);
  display.setTextSize(2);
  display.print("C");
 
  // display humidity
  display.setTextSize(1);
  display.setCursor(0, 35);
  display.print("Humidity: ");
  display.setTextSize(2);
  display.setCursor(0, 45);
  display.print(h);
  display.print(" %");
  display.display();
  delay(1500);

  // Display Air Quality Index
  display.clearDisplay();
  display.setCursor(0, 0); //oled display
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.println("Air Quality Index");
 
  display.setCursor(0, 20); //oled display
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.print(PPM);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.println(" PPM");
  display.display();
  delay(1500);
}