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#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>

const char* ssid = "";
const char* password = "";
WiFiClient client;
LiquidCrystal_I2C lcd(0x27, 16, 2);
WiFiClientSecure client1;
#include <DHT.h>

#define DHTPIN D8
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
#define BOTtoken "850655730:AAFB90ZCiMTDaHMjUw6Zux8pln-RTSIAJv8"

String thingSpeakAddress = "api.thingspeak.com";
String writeAPIKey;
String tsfield1Name;
String request_string;
float h, t, f;
String myData;

UniversalTelegramBot bot(BOTtoken, client1);

int Bot_mtbs = 1000;
long Bot_lasttime;
bool Start = false;

const int ledPin = D2;
const int ledPin1 = D9;
const int ledPin2 = D10;
int ledStatus = 0;
const int buzzer = D11;
int buzzerStatus = 0;

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

  for (int i = 0; i < numNewMessages; i++) {
    String chat_id = String(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 == "Cek suhu") {
      myData = "Suhu :";
      myData += t;
      myData += " C";
      digitalWrite(ledPin, HIGH);
      ledStatus = 1;
      delay(2000);
      digitalWrite(ledPin, LOW);
      ledStatus = 0;
      digitalWrite(buzzer, HIGH);
      tone(buzzer, 2000);
      buzzerStatus = 1;
      delay (2000);
      digitalWrite(buzzer, LOW);
      noTone(buzzer);
      buzzerStatus = 0;
      bot.sendMessage(chat_id, myData, "");
    }

    if (text == "Cek kelembapan") {
      myData = "Kelembapan :";
      myData += h;
      myData += " %RH";
      digitalWrite(ledPin1, HIGH);
      ledStatus = 1;
      delay(2000);
      digitalWrite(ledPin1, LOW);
      ledStatus = 0;
      digitalWrite(buzzer, HIGH);
      tone(buzzer, 2000);
      buzzerStatus = 1;
      delay (2000);
      digitalWrite(buzzer, LOW);
      noTone(buzzer);
      buzzerStatus = 0;
      bot.sendMessage(chat_id, myData, "");
    }

    if (text == "Cek semua") {
      myData = "Suhu :";
      myData += t;
      myData += " C";
      myData += "\nKelembapan :";
      myData += h;
      myData += " %RH";
      digitalWrite(ledPin2, HIGH);
      ledStatus = 1;
      delay(2000);
      digitalWrite(ledPin2, LOW);
      ledStatus = 0;
      digitalWrite(buzzer, HIGH);
      tone(buzzer, 2000);
      buzzerStatus = 1;
      delay (2000);
      digitalWrite(buzzer, LOW);
      noTone(buzzer);
      buzzerStatus = 0;
      bot.sendMessage(chat_id, myData, "");
    }

    if (text == "Start") {
      String welcome = "Welcome to Universal Arduino Telegram Bot library, " + from_name + ".\n";
      welcome += "Menggabungkan Telegram dan Thingspeak.\n\n";
      welcome += "Cek suhu : untuk melihat data suhu\n";
      welcome += "Cek kelembapan : untuk melihat data kelembapan\n";
      welcome += "Cek semua : untuk mengecek semuanya\n";
      bot.sendMessage(chat_id, welcome, "Markdown");
    }
  }
}

void setup()
{
Serial.begin(115200);
delay(10);
dht.begin();
lcd.begin();
lcd.backlight();
lcd.print("Selamat Datang");
delay(2000);
lcd.clear();
pinMode(ledPin, OUTPUT);
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(buzzer, OUTPUT);
digitalWrite(ledPin, HIGH);
digitalWrite(ledPin1, HIGH);
digitalWrite(ledPin2, HIGH);
delay (1000);
digitalWrite(ledPin, LOW);
digitalWrite(ledPin1, LOW);
digitalWrite(ledPin2, LOW);
pinMode(buzzer, LOW);

WiFi.begin(ssid, password);

Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);

WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
delay(10);
}
void loop()
{
  delay(2000);
  h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
 lcd.setCursor(0, 0);
    lcd.print("Temp : ");
    lcd.print(t);
    lcd.print("C");

    lcd.setCursor(0, 1);
    lcd.print("Hum : ");
    lcd.print(h);
    lcd.print("%");

  kirim_thingspeak(t, h);

  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  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 kirim_thingspeak(float suhu, float hum) {
  if (client.connect("api.thingspeak.com", 80)) {
    request_string = "/update?";
    request_string += "key=";
    request_string += "BZQEJGS155GDQ3QV"; // api key thingspeak
    request_string += "&";
    request_string += "field1";
    request_string += "=";
    request_string += suhu;
    request_string += "&";
    request_string += "field2";
    request_string += "=";
    request_string += hum;
    Serial.println(String("GET ") + request_string + " HTTP/1.1\r\n" +
                   "Host: " + thingSpeakAddress + "\r\n" +
                   "Connection: close\r\n\r\n");

    client.print(String("GET ") + request_string + " HTTP/1.1\r\n" +
                 "Host: " + thingSpeakAddress + "\r\n" +
                 "Connection: close\r\n\r\n");
    unsigned long timeout = millis();
    while (client.available() == 0) {
      if (millis() - timeout > 5000) {
        Serial.println(">>> Client Timeout !");
        client.stop();
        return;
      }
    }

    while (client.available()) {
      String line = client.readStringUntil('\r');
    }
    Serial.println();

  Serial.println("closing connection");

  }
}