#include <WiFi.h>
#include <UniversalTelegramBot.h>
#include <WiFiClientSecure.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";

// Note: Fixed space in BOT_TOKEN
#define BOT_TOKEN "8329398768:AAFvhOIetejbojWmLuuPSepTnzurgCwFNa4"

WiFiClientSecure client;
UniversalTelegramBot bot(BOT_TOKEN, client);

const int ntcPin = 34;

// Forward declaration of the function
void handleNewMessages(int numNewMessages);

// --- NTC Thermistor Calculation ---
// Note: Fixed syntax, missing operators, and the misplaced 'return' statement
float calculateTemperature(int adcValue) {
  // Assuming a 10k resistor in a voltage divider
  float voltage = adcValue * (3.3 / 4095.0);
  float resistance = (10000.0 * 3.3 / voltage) - 10000.0;
  
  // Steinhart-Hart Equation to calculate temperature in Celsius
  float temperature = (1.0 / (0.001129148 + (0.000234125 * log(resistance)) + (0.0000000876741 * pow(log(resistance), 3)))) - 273.15;
  
  return temperature;
}

// --- SETUP ---
// Note: All setup code is now inside the setup() function's braces
void setup() {
  Serial.begin(115200);
  
  WiFi.begin(ssid, password);
  Serial.print("Connecting to WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println(" Connected to WiFi");
  
  client.setInsecure();
  pinMode(ntcPin, INPUT);
  Serial.println("Bot setup completed");
}

// --- LOOP ---
// Note: All loop code is now inside the loop() function's braces
void loop() {
  // Note: Fixed missing '=' and typo 'numNewMassages'
  int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
  if (numNewMessages) {
    handleNewMessages(numNewMessages);
  }
  delay(1000); // Added a delay to prevent getting spammed with updates
}

// --- HANDLE NEW MESSAGES ---
// Note: Fixed typo 'handleNesMessages' and 'numNestlessages'
void handleNewMessages(int numNewMessages) {
  // Note: Fixed incorrect for loop syntax
  for (int i = 0; i < numNewMessages; i++) {
    // Note: Fixed missing '='
    String chat_id = bot.messages[i].chat_id;
    // Note: Fixed missing '=' and typo 'hot'
    String text = bot.messages[i].text;
    
    Serial.println("Message received: " + text);

    // Note: Fixed incorrect comparison 'text/temp"'
    if (text == "/temp") {
      // Note: Fixed missing '='
      int adcValue = analogRead(ntcPin);
      float temperature = calculateTemperature(adcValue);
      String message = "Temperature: " + String(temperature, 2) + "°C";
      bot.sendMessage(chat_id, message, "Markdown");
      Serial.println(message);
    } else {
      bot.sendMessage(chat_id, "Invalid command. Use /temp to get the temperature.", "Markdown");
    }
  }
}