/**
   ESP32 + DHT22 Example for Wokwi

   https://wokwi.com/arduino/projects/322410731508073042
*/
#include <WiFi.h>
#include "ThingSpeak.h"

const int LED_PIN = 13;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2261689;
const char* myApiKey = "Z9K3UNKOX26L4KEV";
const char* server = "api.thingspeak.com";

WiFiClient client;

const int PIR_input = 18;
int PIR_STATE = LOW;
int val = 0;

#define NTP_SERVER     "pool.ntp.org"
#define UTC_OFFSET     0
#define UTC_OFFSET_DST 0


std::string printLocalTime() {
    struct tm timeinfo;
    if (!getLocalTime(&timeinfo)) {
        return "Connection Err";
    }

    char buffer[80]; // Assuming a maximum of 80 characters for the formatted time
    strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", &timeinfo);
    
    return buffer;
}
void setup() {
  Serial.begin(115200);
  pinMode(LED_PIN, OUTPUT);
  pinMode(PIR_input, INPUT);
  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);
  configTime(UTC_OFFSET, UTC_OFFSET_DST, NTP_SERVER);
  ThingSpeak.begin(client);
}

void loop() {
  val = digitalRead(PIR_input);
  if (val == HIGH)
  {
    ThingSpeak.setField(1, "Motion detected!!!");
    std::string local_time = printLocalTime();
    String localTimeString = String(local_time.c_str());  // Convert to String
    ThingSpeak.setField(2, localTimeString);
    Serial.println(localTimeString);
  }

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

  delay(10000);
}