/**
   ESP32 + DHT22 Example for Wokwi
   
   https://wokwi.com/arduino/projects/322410731508073042
*/
#include <WiFi.h>
#include "ThingSpeak.h"
#include "RTClib.h"
#include <Wire.h>

const int PIR_PIN = 4;
const int LED_PIN = 13;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2271261;
const char* myApiKey = "8WUYHDDRWJ7ZATY9";
const char* server = "api.thingspeak.com";

WiFiClient client;
RTC_DS3231 rtc;

void setup() {
  Serial.begin(115200);
  pinMode(PIR_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  Wire.begin();
  // rtc.begin();
  rtc.adjust(DateTime(__DATE__, __TIME__));
  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() {
  int pirState = digitalRead(PIR_PIN);
  DateTime now = rtc.now();

  int year = now.year();
  int month = now.month();
  int day = now.day();
  int hour = now.hour();
  int minute = now.minute();
  int second = now.second();

  String timeString = String(year) + "-" + String(month) + "-" + String(day) + " " +
                      String(hour) + ":" + String(minute) + ":" + String(second);
  ThingSpeak.setField(1,timeString);
  
  // Serial.println(timeString);

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

  delay(1000);
}