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

//REd Wifi
const char* ssid = "Wokwi-GUEST";
const char* password = "";

//TelegramBot token
const String botToken = "7685692805:AAFp2s6oqgQ49LTtm4NxjnS6zxdBrn5rSdI";

//vars
int botMTBS = 1000;
unsigned long botLastScan;

#define ledRED 23
#define ledGREEN 22
bool status_RED, status_GREEN;

//Onjetos?
WiFiClientSecure secured_client;
UniversalTelegramBot bot(botToken, secured_client);

void setup() {
  // put your setup code here, to run once:
  pinMode(ledRED, OUTPUT);
  pinMode(ledGREEN, OUTPUT);

  // Serial monitor
  Serial.begin(115200);
  
  // Conexion Wi-Fi
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  secured_client.setCACert(TELEGRAM_CERTIFICATE_ROOT);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Conectando a WiFi..");
  }
}

void wifiConnect(){
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
}

void loop() {
  if (millis() > botLastScan + botMTBS)
  {
    int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
    
    while (numNewMessages){
      Serial.println("Respuesta obtenida!");
      handleNewMessages(numNewMessages);
      numNewMessages = bot.getUpdates(bot.last_message_received + 1);
    }
    botLastScan = millis();
  }
}

void handleNewMessages(int numNewMessages){
  Serial.print("handleNewMessages ");
  Serial.println(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 == "/ledREDon"){
      bot.sendMessage(chat_id, "Led Red ON", "");
      led_RED(true);
    }
    if (text == "/ledREDoff"){
      bot.sendMessage(chat_id, "Led Red OFF", "");
      led_RED(false);
    }
    if (text == "/ledGREENon"){
      bot.sendMessage(chat_id, "Led Red ON", "");
      led_GREEN(true);
    }
    if (text == "/ledGREENoff"){
      bot.sendMessage(chat_id, "Led Red OFF", "");
      led_GREEN(false);
    }

    if (text == "/statusRED") {
      if (digitalRead(ledRED)){
        bot.sendMessage(chat_id, "LED Red ON", "");
      }
      else{
        bot.sendMessage(chat_id, "LED Red OFF", "");
      }
    }
    
    if (text == "/statusGREEN") {
      if (digitalRead(ledGREEN)){
        bot.sendMessage(chat_id, "LED Green ON", "");
      }
      else{
        bot.sendMessage(chat_id, "LED Green OFF", "");
      }
    }

    if (text == "/start"){
      String welcome = "Welcome to Universal Arduino Telegram Bot library, " + from_name + "This is Flash Led Bot example.\n";
      welcome += "This is Flash Led Bot example.\n\n";
      welcome += "/ledREDon : to switch the Led ON \n";
      welcome += "/ledREDoff : to switch the Led OFF \n";
      welcome += "/ledGREENon : to switch the Led ON \n";
      welcome += "/ledGREENoff : to switch the Led OFF \n";
      welcome += "/statusRED : Returns current status of LED \n";
      welcome += "/statusGREEN : Returns current status of LED \n";
      bot.sendMessage(chat_id, welcome, "Markdown");
    }
  }
}

void led_RED(bool isOn){
  if(isOn){
    digitalWrite(ledRED, HIGH);
  }
  else{
    digitalWrite(ledRED, LOW);
  }
}

void led_GREEN(bool isOn){
  if(isOn){
    digitalWrite(ledGREEN, HIGH);
  }
  else{
    digitalWrite(ledGREEN, LOW);
  }
}