#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
 
// Wi-Fi credentials
const char* ssid = "open_wrt_inf";
const char* password = "c@psl0ck316";
 
// Pin configuration
const int pinD5 = D5;
 
void setup() {
  // Initialize serial communication
  Serial.begin(115200);
  delay(10);
 
  // Configure pinD5 as input
  pinMode(pinD5, INPUT);
 
  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  Serial.print("Connecting to ");
  Serial.print(ssid);
 
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}
 
String followRedirects(String url) {
  WiFiClient client;
  HTTPClient http;
  http.begin(client, url);
 
  int httpCode = http.GET();
  String payload = "";
 
  if (httpCode > 0) {
    Serial.printf("[HTTP] GET... code: %d\n", httpCode);
    if (httpCode == HTTP_CODE_OK) {
      payload = http.getString();
    } else if (httpCode == HTTP_CODE_MOVED_PERMANENTLY || httpCode == HTTP_CODE_FOUND) {
      String newUrl = http.getLocation();
      Serial.print("Redirected to: ");
      Serial.println(newUrl);
      payload = followRedirects(newUrl); // Recursively follow redirects
    }
  } else {
    Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
  }
 
  http.end();  // Close connection
  return payload;
}
 
void loop() {
  // Read the state of pinD5
  bool state = digitalRead(pinD5);
  Serial.println(state);
  // Prepare URL based on the state of pinD5
  String url = "http://www.calandapp.org/bla.php?";
  if (state == 1) {
    url += "high";
  } else {
    url += "low";
  }
  Serial.print(url);
  // Check WiFi connection status
  if (WiFi.status() == WL_CONNECTED) {
    String payload = followRedirects(url);
    Serial.println(payload);
  }
 
  // Wait for 1 second
  delay(2000);
}