#include <SPI.h>
#include <MFRC522.h>
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266HTTPClient.h>
#include <LiquidCrystal_I2C.h>
#include "CTBot.h"

const char *ssid = "Kedai Kopi TEMEJI"; 
const char *password = "NEWTEMEJI";

String token = "6882219025:AAH8wwvnLPwEnN7GqlpXzkgOP0Fwq6FqJdM";

const int RST_PIN = D4;
const int SS_PIN = D8;
const int pinBuzz = D0;
const int pinCamera = D3;
const int lcdColumns = 16;
const int lcdRows = 2;

LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);
CTBot myBot;

MFRC522 rfid(SS_PIN, RST_PIN);
MFRC522::MIFARE_Key key;

WiFiClient wifiClient;
HTTPClient http;

void setup() {
  delay(1000);
  Serial.begin(115200);
  
  lcd.init();
  lcd.backlight();

  lcd.setCursor(0, 0);
  lcd.print("  SYSTEM  RFID  ");

  lcd.setCursor(0, 1);
  lcd.print("Dengan ESP32 Cam");

  pinMode(pinCamera, OUTPUT);
  digitalWrite(pinCamera, HIGH);

  pinMode(pinBuzz, OUTPUT);
  digitalWrite(pinBuzz, HIGH);

  WiFi.mode(WIFI_OFF);
  delay(1000);
  WiFi.mode(WIFI_STA);

  WiFi.begin(ssid, password);
  Serial.println("");

  Serial.print("Connecting");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  myBot.wifiConnect(ssid, password);
  myBot.setTelegramToken(token);

  if (myBot.testConnection())
    Serial.println("\ntestConnection OK");
  else
    Serial.println("\ntestConnection NOK");

  SPI.begin();
  rfid.PCD_Init();
  digitalWrite(pinBuzz, LOW);
  delay(1000);
  digitalWrite(pinBuzz, HIGH);
  Serial.println("Ready");
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("  TEMPELKAN   ");

  lcd.setCursor(0, 1);
  lcd.print("KARTU ANDA DISINI");

  myBot.sendMessage(1263710714, "SYSTEM ABSENSI RFID DENGAN CAMERA");
}

void loop() {
  if (!rfid.PICC_IsNewCardPresent())
    return;

  if (!rfid.PICC_ReadCardSerial())
    return;

  String content = "";

  for (byte i = 0; i < 4; i++) {
    content +=
      (rfid.uid.uidByte[i] < 0x10 ? "0" : "") +
      String(rfid.uid.uidByte[i], HEX) +
      (i != rfid.uid.size - 1 ? "" : "");
  }
  content.trim();
  content.toUpperCase();

  digitalWrite(pinBuzz, LOW);
  delay(500);
  digitalWrite(pinBuzz, HIGH);

  HTTPClient http;
  
  String getData, Link;

  getData = "?Data='" + content + "'";
  Link = "http://192.168.50.26/rfidcam/esp.php" + getData;
  http.begin(wifiClient, Link);

  int httpCode = http.GET();
  if (httpCode == 200) {
    Serial.println(content);
    if (content.equals("43ACDA0F")) {
      myBot.sendMessage(1263710714, "Absen Berhasil1");
    } else if (content.equals("93C6B21B")) {
      myBot.sendMessage(1263710714, "Absen Berhasil2");
    } else if (content.equals("E30E4213")) {
      myBot.sendMessage(1263710714, "Absen Berhasil3");
    }else if (content.equals("F344A7AA")) {
      myBot.sendMessage(1263710714, "Absen Berhasil4");
  }
  }

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(" Absen Berhasil ");

  digitalWrite(pinCamera, LOW);
  delay(500);
  digitalWrite(pinCamera, HIGH);

  delay(2000);
  http.end();

  rfid.PICC_HaltA();
  rfid.PCD_StopCrypto1();
  Serial.println("Ready");
  lcd.setCursor(0, 0);
  lcd.print("      SCAN      ");

  lcd.setCursor(0, 1);
  lcd.print("   YOUR CARD    ");
}