#include <WiFi.h>
#include <HTTPClient.h>

// koneksi jaringan
const char* ssid = "Zidanee";
const char* password = "zidane123";

// Server endpoints
const char* statusUrl = "http://192.168.100.42/shuttle_run/games/status.php";
const char* waktuUrl = "http://192.168.100.42/shuttle_run/games/waktu.php";
const char* tambahUrl = "http://192.168.100.42/shuttle_run/games/tambah.php";
const char* endUrl = "http://192.168.100.42/shuttle_run/games/end.php";
const char* targetUrl = "http://192.168.100.42/shuttle_run/games/lampu_target.php";

// LED and button pins
const int ledPins[4] = {33 , 32, 2, 4};
const int buttonPins[4] = {12, 14, 18, 19};

// Variabel untuk menyimpan led aktif saat ini
int activeLED = -1;
unsigned long oldTime=0;
unsigned long nowTime=0;
bool ledOn = false;
int waktu = 0;
int target = 0;
int jumlah = 0;

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

  //Set up LED pins sebagai output
  for (int i = 0; i < 4; i++) {
    pinMode(ledPins[i], OUTPUT);
    digitalWrite(ledPins[i], LOW); // Make sure all LEDs are off initially
  }

  // Set up button pins sebagai input
  for (int i = 0; i < 4; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }

  // Connect ke Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}

void loop() {
  nowTime = millis();
  bool statusGame = checkStatus();
  if (nowTime - oldTime >= 1000) {
    oldTime = nowTime;
    if (statusGame == 1) {
      Serial.println("Status is 1, starting the program");
      
      if (!ledOn) { 
        checkWaktu();
        checkTarget();
        randomizeLED();
        ledOn = true;
      }

      if(waktu <= 0) {
        endProgram();
        ledOn = false;
      }

      Serial.println("waktu tersisa : " + String(waktu));
      waktu -= 1;
    }
  }

  if (statusGame == 1) {
    if(target == jumlah && target != 0) {
        endProgram();
        ledOn = false;
      }
    handleButtons();
  }
  
}

int checkTarget() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(targetUrl);
    int httpResponseCode = http.GET();
    if (httpResponseCode > 0) {
      String response = http.getString();
      Serial.println("target: " + response);
      target = response.toInt();
      return response.toInt();
    } else {
      Serial.println("Error on HTTP request");
      return 0;
    }
    http.end();
  } else {
    Serial.println("WiFi not connected");
    return 0;
  }
}


int checkWaktu() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(waktuUrl);
    int httpResponseCode = http.GET();
    if (httpResponseCode > 0) {
      String response = http.getString();
      Serial.println("waktu: " + response);
      waktu = response.toInt();
      return response.toInt();
    } else {
      Serial.println("Error on HTTP request");
      return 0;
    }
    http.end();
  } else {
    Serial.println("WiFi not connected");
    return 0;
  }
}

int checkStatus() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(statusUrl);
    int httpResponseCode = http.GET();
    if (httpResponseCode > 0) {
      String response = http.getString();
      // Serial.println("Status response: " + response);
      return response.toInt();
    } else {
      Serial.println("Error on HTTP request");
      return 0;
    }
    http.end();
  } else {
    Serial.println("WiFi not connected");
    return 0;
  }
}

void randomizeLED() {
  if (activeLED != -1) {
    digitalWrite(ledPins[activeLED], LOW); // mematikan led sebelumnya
  }
  activeLED = random(0, 4); // memilih led acak
  digitalWrite(ledPins[activeLED], HIGH); // menghidupkan led yang terpilih
  Serial.println("LED " + String(activeLED) + " is on");
}

void handleButtons() {
  for (int i = 0; i < 4; i++) {
    if (digitalRead(buttonPins[i]) == LOW) {
      if (i == activeLED) {
        sendButtonPress();
        randomizeLED(); // led hidup secara acak setelah menekan tombol
      }
    }
  }
}

void sendButtonPress() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(tambahUrl);
    int httpResponseCode = http.GET();
    if (httpResponseCode > 0) {
      String response = http.getString();
      Serial.println("Button press recorded: " + response);
      jumlah += 1;
    } else {
      Serial.println("Error on sending GET request");
    }
    http.end();
  } else {
    Serial.println("WiFi not connected");
  }
}

void endProgram() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(endUrl);
    int httpResponseCode = http.GET();
    if (httpResponseCode > 0) {
      String response = http.getString();
      Serial.println("Program selesai");
    } else {
      Serial.println("Error on sending GET request");
    }
    http.end();
  } else {
    Serial.println("WiFi not connected");
  }
}