#include <WiFi.h>
#include "DHTesp.h"
#include "ThingSpeak.h"

const int DHT_PIN = 15;
const int PIR_PIN = 14;
const int LED_PIN = 13;
const int LED_PIN2 = 26;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2383218;
const char* myApiKey = "X53XZTLGY7Q4T9GT";
const char* server = "api.thingspeak.com";

const float MAX_TEMPERATURE = 35.0;
const float MIN_TEMPERATURE = 12.0;
const float MAX_HUMIDITY = 70.0;
const float MIN_HUMIDITY = 40.0;
const int MAIN_DELAY=10000;

DHTesp dhtSensor;
WiFiClient client;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(LED_PIN, OUTPUT);
  pinMode(LED_PIN2, OUTPUT);
  pinMode(PIR_PIN, INPUT);
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) 
  {
  delay(1000);
  Serial.println("Failed to connect to WiFi. Retrying...");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  
  
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  ThingSpeak.setField(1,data.temperature);
  ThingSpeak.setField(2,data.humidity);
  int pirValue = digitalRead(PIR_PIN);
  ThingSpeak.setField(3, pirValue);
  if (data.temperature > MAX_TEMPERATURE || data.temperature < MIN_TEMPERATURE || 
    data.humidity > MAX_HUMIDITY || data.humidity < MIN_HUMIDITY) {
  digitalWrite(LED_PIN, HIGH);
} else {
  digitalWrite(LED_PIN, LOW);
}
  if (pirValue == HIGH) {
    digitalWrite(LED_PIN2, HIGH); // Turn on the LED when motion is detected
  } else {
    digitalWrite(LED_PIN2, LOW);
  }
  int x = ThingSpeak.writeFields(myChannelNumber,myApiKey);
  
  Serial.println("Temperature: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("PIR Value: " + String(pirValue));
  
  if (x == 200) {
  Serial.println("Data uploaded successfully");
  } else {
  Serial.println("Failed to upload data. HTTP error code: " + String(x));
  }
  Serial.println("...");

  delay(MAIN_DELAY);
}