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

const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";

unsigned long myChannelNumber = 3437425;
const char* myWriteAPIKey = "9CH37QAFNKOOQBE3";

WiFiClient client;

int LDR = 34;
int LED = 2;

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

  pinMode(LED, OUTPUT);

  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("\nWiFi Connected!");

  ThingSpeak.begin(client);
}

void loop() {
  int ldrValue = analogRead(LDR);

  Serial.print("LDR Value: ");
  Serial.println(ldrValue);

  // Automatic Streetlight Control
  if (ldrValue < 500) {
    digitalWrite(LED, HIGH);
  } else {
    digitalWrite(LED, LOW);
  }

  // Send data to ThingSpeak
  ThingSpeak.setField(1, ldrValue);

  int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

  if (x == 200) {
    Serial.println("Data sent successfully");
  } else {
    Serial.print("ThingSpeak Error: ");
    Serial.println(x);
  }

  delay(15000);
}