#include <WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>

#define WIFI_SSID "Wokwi-GUEST"        // Replace with your Wi-Fi SSID
#define WIFI_PASSWORD "" // Replace with your Wi-Fi password
#define API_URL "https://api.thingspeak.com/channels/1921629/fields/1.json?results=1"
#define LED_PIN 4  // GPIO pin for LED

void setup() {
    Serial.begin(115200);
    pinMode(LED_PIN, OUTPUT);
    
    // Connect to Wi-Fi
    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
    Serial.print("Connecting to Wi-Fi");
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
    }
    Serial.println("\nWi-Fi Connected!");
}

void loop() {
    if (WiFi.status() == WL_CONNECTED) {
        HTTPClient http;
        http.begin(API_URL);
        int httpResponseCode = http.GET();

        if (httpResponseCode > 0) {
            String response = http.getString();
            Serial.println("API Response: " + response);

            // Parse JSON
            DynamicJsonDocument doc(1024);
            DeserializationError error = deserializeJson(doc, response);
            if (!error) {
                const char* field1Value = doc["feeds"][0]["field1"];  // Extract "field1"
                Serial.print("Field1 Value: ");
                Serial.println(field1Value);

                // Control LED
                if (String(field1Value) == "0") {
                    digitalWrite(LED_PIN, LOW);
                    Serial.println("LED OFF");
                } else {
                    digitalWrite(LED_PIN, HIGH);
                    Serial.println("LED ON");
                }
            } else {
                Serial.println("JSON Parsing Failed!");
            }
        } else {
            Serial.print("HTTP Request Failed! Error Code: ");
            Serial.println(httpResponseCode);
        }
        
        http.end();
    } else {
        Serial.println("Wi-Fi Disconnected!");
    }

    delay(10000); // Wait few seconds before the next request
}