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

// Wokwi's free simulated Wi-Fi
const char* ssid = "Wokwi-GUEST";
const char* password = "";

// Your active Localtunnel URL with the webhook path attached
const char* serverName = "https://evil-clubs-grow.loca.lt/webhook/fault";

const int buttonPin = 13;
int lastButtonState = HIGH;

void setup() {
  Serial.begin(115200);
  pinMode(buttonPin, INPUT_PULLUP);
  
  Serial.print("Connecting to simulated grid network");
  WiFi.begin(ssid, password);
  while(WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\n[SYSTEM ONLINE] Monitoring voltage thresholds.");
}

void loop() {
  int currentButtonState = digitalRead(buttonPin);
  
  // Trigger on button press (simulated voltage drop)
  if (currentButtonState == LOW && lastButtonState == HIGH) {
    Serial.println("\n[CRITICAL] Voltage anomaly detected!");
    Serial.println("Firing L2 escalation webhook...");
    
    if(WiFi.status() == WL_CONNECTED){
      HTTPClient http;
      http.begin(serverName); 
      
      // Force the connection to wait up to 10 seconds to bypass network lag
      http.setTimeout(10000);
      
      // Essential headers for JSON and bypassing Localtunnel's proxies
      http.addHeader("Content-Type", "application/json");
      http.addHeader("Bypass-Tunnel-Reminder", "true");
      http.addHeader("User-Agent", "ESP32-VoltGuard");
      
      // Fire the POST request
      int httpResponseCode = http.POST("{\"fault_code\":\"V-DROP-7.8kW\"}");
      
      if (httpResponseCode > 0) {
        Serial.print("Webhook delivered. Server response code: ");
        Serial.println(httpResponseCode);
      } else {
        Serial.print("Error sending webhook: ");
        Serial.println(http.errorToString(httpResponseCode).c_str());
      }
      http.end();
    }
    // 10-second delay to prevent spamming the API
    delay(10000); 
  }
  
  lastButtonState = currentButtonState;
  delay(50); // Simple debounce
}