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

const char* ssid = "Wokwi-Client";
const char* password = "";
const char* server = "api.thingspeak.com";
const String apiKey = "KG9GNOPD47HE7ME6";

const int dataField1 = 1;  // Field number in ThingSpeak for your data

WiFiClient client;

void setup() {
  Serial.begin(115200);
  delay(100);

  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  Serial.println("Connecting to WiFi...");
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("WiFi connected");

  sendDataToThingSpeak();
  // put your setup code here, to run once:
  pinMode(26, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(12, OUTPUT);
}
void loop() {
  Serial.println("Ambulance");
  digitalWrite(12, HIGH);
  tone(14, 650);
  delay(500);
  noTone(14);
  digitalWrite(12, LOW);
  digitalWrite(26, HIGH);
  tone(14, 750);
  delay(500);
  noTone(14);
  digitalWrite(26, LOW);
  delay(200);
  Serial.println("Police");
  digitalWrite(12, HIGH);
  tone(14, 3000);
  delay(500);
  noTone(14);
  digitalWrite(12, LOW);
  digitalWrite(26, HIGH);
  tone(14, 5000);
  delay(500);
  noTone(14);
  digitalWrite(26, LOW);
}

void sendDataToThingSpeak() {
  float sensorValue = 25.5;  // Replace with your sensor value
  
  // Build the URL for the HTTP POST request to ThingSpeak
  String url = "https://api.thingspeak.com/channels.json?api_key=" + apiKey + "&field" + String(dataField1) + "=" + String(sensorValue);

  Serial.print("Connecting to ThingSpeak...");
  if (client.connect(server, 80)) {
    Serial.println("connected");

    // Make an HTTP POST request
    client.print(String("POST ") + url + " HTTP/1.1\r\n" +
                 "Host: " + server + "\r\n" +
                 "Connection: close\r\n\r\n");
                 
    // Check for HTTP response
    while (client.connected()) {
      String line = client.readStringUntil('\r');
      Serial.print(line);
    }
    client.stop();
  } else {
    Serial.println("connection failed");
  }
}