#include <WiFi.h>
#include <HTTPClient.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Keypad.h>
#include <ESP32Servo.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* token = "b9GtyEaFyQ3xW1QtBofnCdCnj0yrOqyDKPDv1qoPc6F";
const int rows=4;
const int cols=4;
Adafruit_SSD1306 display = Adafruit_SSD1306(128, 64, &Wire);
char keys[rows][cols] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};
uint8_t colpins[cols] = {2, 0, 4, 16 };
uint8_t rowpins[rows] = {12, 14, 27, 26};

Servo servo_bin;

Keypad keypad = Keypad(makeKeymap(keys), rowpins, colpins, rows, cols);
const String passwod = "1234";
String input_passwod;
int i = 0;

void setup(){
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.setTextColor(WHITE,BLACK);
  display.setCursor(0,5);
  display.clearDisplay();
  display.setTextSize(3);
  Serial.begin(115200);
  input_passwod.reserve(32);
  servo_bin.attach(33);
  servo_bin.write(90);
   WiFi.begin(ssid,passwod);

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

Serial.println("Connected to WiFi");
}

void loop(){
  char key = keypad.getKey();

  if (WiFi.status() == WL_CONNECTED) {
Serial.println("เชื่อมต่อแล้วจ้า");
}

  if (key) {
  Serial.println(key);
    display.print("*");
    display.display();
    input_passwod += key;
    i=++i;
 
 if (key == 'D') {
      input_passwod = "";
      display.clearDisplay();
      display.display();
      display.setCursor(0,5);
      i = 0;
      } 

     else if (i == 4) {
      if (passwod == input_passwod) {
        servo_bin.write(0);
        Serial.println("รหัสถูกต้อง");
        display.clearDisplay();
        display.setCursor(0,25);
        display.setTextSize(3);
        display.print("Succeed");
        display.display();
        delay(6000);
        servo_bin.write(90);
        display.clearDisplay();
        display.display();
        display.setCursor(0,5);
        sendLineNotify("ไอ้ควายฉลาดมาก"); 

      } else {
        Serial.println("รหัสไม่ถูกต้อง");
        display.clearDisplay();
        display.setCursor(23,25);
        display.setTextSize(3);
        display.print("Fail");
        display.display();
        delay(3000);
        display.clearDisplay();
        display.display();
        display.setCursor(0,5);
        sendLineNotify("โง่ฉิบหาย"); 
        
      }
      i = 0;
      input_passwod = "";

    } else {
    display.clearDisplay();
    display.display();
    }
      delay(100);
  }
}
void sendLineNotify(String message) {
  HTTPClient http;

  http.begin("https://notify-api.line.me/api/notify");
  http.addHeader("Authorization", "Bearer " + String(token));
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");

  String encodedMessage = "message=" + urlEncode(message);
  int httpCode = http.POST(encodedMessage);

  if (httpCode > 0) {
    String response = http.getString();
   // Serial.println(httpCode);
   // Serial.println(response);
  } else {
    Serial.println("....");
  }

  http.end();
}

String urlEncode(String value) {
  String encodedValue = "";
  char c;
  for (size_t i = 0; i < value.length(); i++) {
    c = value.charAt(i);
    if (isAlphaNumeric(c)) {
      encodedValue += c;
    } else {
      encodedValue += String('%');
      encodedValue += String(c, HEX);
    }
  }
  return encodedValue;
}