//THINGSPEAK ----------
// channel iD:2394318
//channel APIKEY: A0UA3XKB4L1I0B7G
#include <WiFi.h>
#include "DHTesp.h"
#include "ThingSpeak.h"

const char * WIFI_NAME = "Wokwi-GUEST";
const char * WIFI_PASSWORD = "";
const int myChannelNumber = 2394318;
const char * myApiKey = "A0UA3XKB4L1I0B7G";
const char * server = "api.thingspeak.com";

//Flame Sensor
const int flamePin = 33; //LDR analog output connected to analog pin 33
int flameValue = 0;

// INPUT: Potentiometer 
//Barometer BMP180 
const int potPin = 34; // Potentiometer output connected to analog pin 34
int barometer = 0; // Variable to store the input from the potentiometer
//MQ-135 Air Quality
const int potPin1 = 35; // Potentiometer output connected to analog pin 35
int airQuality = 0; // Variable to store the input from the potentiometer

const int DHT_PIN = 15;
const int RED_PIN = 13;
const int GREEN_PIN = 12;

DHTesp dhtSensor;
WiFiClient client;

void setup() {
    Serial.begin(1152000);
    dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
    pinMode(RED_PIN, OUTPUT);
    pinMode(GREEN_PIN, OUTPUT);
    WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
    while (WiFi.status() != WL_CONNECTED) {
        delay(1000);
        Serial.println("Wifi not connected");
    }
    Serial.println("Wifi connected !");
    Serial.println("Local IP: " + String(WiFi.localIP()));
    WiFi.mode(WIFI_STA);
    ThingSpeak.begin(client);
}

void loop() {
    TempAndHumidity data = dhtSensor.getTempAndHumidity();
    float humidity = data.humidity;
    float temperature = data.temperature;
       
    
    Serial.print(F("Humidity: "));
    Serial.print(humidity);
    Serial.print(F(" Temperature: "));
    Serial.print(temperature);
    Serial.print(F("°C "));

    barometer = analogRead(potPin); // read the potentiometer value at the input pin
    Serial.print(F("Atmospheric Pressure: "));

    barometer = map(barometer, 0, 4095, 870, 1013);
    Serial.println(barometer); //milibars , 980 is already sign of typhoon/cyclone

    airQuality = analogRead(potPin1); // read the potentiometer value at the input pin
    Serial.print(F("Air Quality: "));
    airQuality = map(airQuality, 0, 4095, 150, 1200);
    Serial.println(airQuality);
    // Flame Sensor
    // read the value from the sensor
    flameValue = analogRead(flamePin);
    // map the sensor reading to a range for the LED
    flameValue = map(flameValue, 4058, 32, 0, 100);
    if (flameValue < 60 || airQuality < 1000) {
        Serial.print(F("Safe - Flame Sensor "));
        digitalWrite(RED_PIN, LOW);
        Serial.println(flameValue);
    } else {
        Serial.print(F("FIRE DANGER - Flame Sensor: "));
        digitalWrite(RED_PIN, HIGH);
        Serial.println(flameValue);
    }

    ThingSpeak.setField(1, temperature);
    ThingSpeak.setField(2, humidity);
    ThingSpeak.setField(3, barometer);
    ThingSpeak.setField(4, flameValue);
    ThingSpeak.setField(5, airQuality);


    int x = ThingSpeak.writeFields(myChannelNumber, myApiKey);
    if (x == 200) {
        Serial.println("Data pushed successfully");
         digitalWrite(GREEN_PIN, HIGH);
    } else {
        Serial.println("Push error" + String(x));
       digitalWrite(GREEN_PIN, LOW);
    }
    Serial.println("---");

    delay(5000);
}