#include <WiFiManager.h>    // https://github.com/tzapu/WiFiManager
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>


#define BOT_TOKEN "XXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"

const unsigned long BOT_MTBS = 1000;

WiFiClientSecure secured_client;
UniversalTelegramBot bot(BOT_TOKEN, secured_client);
unsigned long bot_lasttime;
bool Start = false;

void handleNewMessages(int numNewMessages)
{
  Serial.println("handleNewMessages");
  Serial.println(String(numNewMessages));

  for (int i = 0; i < numNewMessages; i++)
  {
    String chat_id = bot.messages[i].chat_id;
    String text = bot.messages[i].text;

    String from_name = bot.messages[i].from_name;
    if (from_name == "")
      from_name = "Guest";

    if (text == "/send_test_action")
    {
      bot.sendChatAction(chat_id, "typing");
      delay(4000);
      bot.sendMessage(chat_id, "Did you see the action message?");
    }

    if (text == "/start")
    {
      String welcome = "Welcome to Universal Arduino Telegram Bot library, " + from_name + ".\n";
      welcome += "This is Chat Action Bot example.\n\n";
      welcome += "/send_test_action : to send test chat action message\n";
      bot.sendMessage(chat_id, welcome);
    }
  }
}







void setup() {
  Serial.begin(115200);
  Serial.println();
  Connect_To_WiFi();
  Connect_To_Telegram();

}

void loop() {
  ReConnect_To_WiFi();
  handel_messages_from_Telegram_Users();

}















void ReConnect_To_WiFi() {
  while (WiFi.status() != WL_CONNECTED) {
    //delay(500);
    Serial.print(".");
    Connect_To_WiFi();
  }
}

void Connect_To_WiFi() {
  WiFiManager wm;
  bool res;
  res = wm.autoConnect("Senior Project [Setup WiFi]"); // password protected ap

  if (!res) {
    Serial.println("Failed to Connect!!");
    // ESP.restart();
  }
  else {
    //if you get here you have connected to the WiFi
    Serial.println("Connected...");
  }
}

void handel_messages_from_Telegram_Users() {
  if (millis() - bot_lasttime > BOT_MTBS)
  {
    int numNewMessages = bot.getUpdates(bot.last_message_received + 1);

    while (numNewMessages)
    {
      Serial.println("got response");
      handleNewMessages(numNewMessages);
      numNewMessages = bot.getUpdates(bot.last_message_received + 1);
    }

    bot_lasttime = millis();
  }
}


void Connect_To_Telegram() {
  secured_client.setCACert(TELEGRAM_CERTIFICATE_ROOT); // Add root certificate for api.telegram.org
  Serial.print("Retrieving time: ");
  configTime(0, 0, "pool.ntp.org"); // get UTC time via NTP
  time_t now = time(nullptr);
  while (now < 24 * 3600)
  {
    Serial.print(".");
    delay(100);
    now = time(nullptr);
  }
  Serial.println(now);
}