#include "libary.h"
#include "variabel_global.h"

void setup() {
  Serial.begin(115200);

  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print("Connecting to ");
  LCD.setCursor(0, 1);
  LCD.print("WiFi ");

  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  LCD.clear();
  LCD.setCursor(0, 0);
  LCD.println("Online");
  LCD.setCursor(0, 1);
  LCD.println("Updating time...");
  LCD.clear();

  
}

void loop() {

  
  if (!digitalRead(downButton)) {
    randomNum = generateRandomNumber();
    Serial.print("Nomor Acak Baru: ");
    Serial.println(randomNum);
    Serial.println("DOWN");
    Serial.println(blynk_token);
    
   
    menu++;
    updateMenu();
    delay(100);

    while (!digitalRead(downButton));

  }
  if (!digitalRead(upButton)) {
    randomNum = generateRandomNumber();
    Serial.print("Nomor Acak Baru: ");
    Serial.println(randomNum);
    Serial.println("UP");
    Serial.println(blynk_token);
    
    menu--;
    updateMenu();
    delay(100);

    while (!digitalRead(upButton));

  }
  if (!digitalRead(selectButton)) {
    randomNum = generateRandomNumber();
    Serial.print("Nomor Acak Baru: ");
    Serial.println(randomNum);
    Serial.println("OK");
    Serial.println(blynk_token);
    
    executeAction();
    updateMenu();
    delay(100);

    while (!digitalRead(selectButton));

  }
}

//////////////// case menu
void updateMenu() {
  switch (menu) {
    case 0:
      menu = 1;
      break;
    case 1:
      LCD.clear();
      LCD.print(">CEK CPU");
      LCD.setCursor(0, 1);
      LCD.print(" HOTSPOT AKTIF");
      break;
    case 2:
      LCD.clear();
      LCD.print(" CEK CPU");
      LCD.setCursor(0, 1);
      LCD.print(">HOTSPOT AKTIF");
      break;
    case 3:
      LCD.clear();
      LCD.print(">LICENSI");
      LCD.setCursor(0, 1);
      LCD.print(" REBOOT");
      break;
    case 4:
      LCD.clear();
      LCD.print(" LICENSI");
      LCD.setCursor(0, 1);
      LCD.print(">REBOOT");
      break;
    case 5:
      menu = 4;
      break;
      
      
  }

}
//////////////// case menu

void executeAction() {
  switch (menu) {
    case 1:
      action1();
      break;
    case 2:
      action1();
      break;
    case 3:
      action1();
      break;
    case 4:
      action1();
      break;
  }
}


//////////////// action1
void action1() {
  delay(500);
  LCD.clear();
  // Membuat URL
  String url = server;

  // Membuat parameter untuk POST
  String postParams = "api_key=" + String(blynk_token) + "&action=" + action;

  // Melakukan permintaan HTTP POST
  String responseData = performHttpPost(url, postParams);

  // Proses dan tampilkan respon JSON
  processJsonResponse(responseData);

  while (digitalRead(selectButton)) {
    delay(1000);

  }
}
//////////////// action1


//////////////// Proses Get POST API cek saldo
String performHttpPost(String url, String postParams) {
  HTTPClient http;
  http.begin(url);

  // Atur tipe konten untuk POST
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");

  // Melakukan permintaan HTTP POST
  int httpCode = http.POST(postParams);
  String response = "";

  Serial.printf("[HTTP] POST... code: %d\n", httpCode);

  if (httpCode > 0) {
    if (httpCode == HTTP_CODE_OK) {
      response = http.getString();
      Serial.println("Response Data:");
      Serial.println(response);
    }
  } else {
    Serial.printf("[HTTP] POST... failed, error: %s\n", http.errorToString(httpCode).c_str());
    LCD.setCursor(0, 0);
    LCD.print(" GAGAL KONEKSI");
    LCD.scrollDisplayLeft();
    delay (100);
  }

  http.end();
  return response;
}

void processJsonResponse(String jsonData) {
  DynamicJsonDocument doc(1024);
  DeserializationError error = deserializeJson(doc, jsonData);

  if (error) {
    Serial.print("deserializeJson() failed: ");
    Serial.println(error.c_str());
  } else {
    bool status = doc["status"];
    LCD.setCursor(0, 0);
    LCD.print(status);

    if (status) {
      // Respon sukses
      String nama_pengguna = doc["data"]["nama_pengguna"];
      String sisa_saldo_top_up = doc["data"]["sisa_saldo_top_up"];
      String id = doc["data"]["id"];

      Serial.println("Respon Sukses:");
      Serial.print("Nama Pengguna: ");
      Serial.println(nama_pengguna);
      Serial.print("Sisa Saldo : ");
      Serial.println(formatRupiah(sisa_saldo_top_up));

      // Menampilkan informasi ke LCD
      LCD.setCursor(0, 0);
      LCD.print(nama_pengguna);

      LCD.setCursor(0, 1);
      LCD.print(formatRupiah(sisa_saldo_top_up));
    } else {
      // Respon gagal
      String pesan = doc["data"]["pesan"];
      Serial.println("Respon Gagal:");
      Serial.print("Pesan: ");
      Serial.println(pesan);

      // Menampilkan pesan ke LCD
      LCD.setCursor(0, 0);
      LCD.print(pesan);
    }
  }
}
//////////////// Proses Get POST API cek saldo

String formatRupiah(String value) {
  // Menambahkan titik sebagai pemisah ribuan
  int length = value.length();
  for (int i = length - 3; i > 0; i -= 3) {
    value = value.substring(0, i) + "." + value.substring(i);
  }
  return "Rp " + value;
}