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

#define BUTTON_PIN 21          // Define the button pin
#define LED_PIN_RED 19         // Define the RED LED pin
#define LED_PIN_YELLOW 18      // Define the YELLOW LED pin
#define LED_PIN_GREEN 5        // Define the GREEN LED pin

const char* auth = "q_HhugEwXYnIFcX2KUVJilxfOOpouG13";
const char* ssid = "Wokwi-GUEST";
const char* password = "";

bool ledRedOn = false;
bool ledYellowOn = false;
bool ledGreenOn = false;

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

  WiFi.begin(ssid, password);

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

  Serial.println("Connected to WiFi");

  pinMode(BUTTON_PIN, INPUT_PULLUP); // Assuming the button is connected to this pin
  pinMode(LED_PIN_RED, OUTPUT);
  pinMode(LED_PIN_YELLOW, OUTPUT);
  pinMode(LED_PIN_GREEN, OUTPUT);

  Serial.begin(9600);
}

void sendLineNotification(String token, String message) {
  HTTPClient http;

  String url = "https://notify-api.line.me/api/notify";
  String lineAuth = "Bearer " + token;

  http.begin(url);
  http.addHeader("Authorization", lineAuth);
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");

  int httpResponseCode = http.POST("message=" + message);

  if (httpResponseCode > 0) {
    String response = http.getString();
    Serial.println(httpResponseCode);
    Serial.println(response);
  } else {
    Serial.print("Error on sending POST request: ");
    Serial.println(httpResponseCode);
  }

  http.end();
}

void loop() {
  // Check if the button is pressed
  if (digitalRead(BUTTON_PIN) == LOW) {
    // Toggle the status of each LED
    ledRedOn = !ledRedOn;
    digitalWrite(LED_PIN_RED, ledRedOn ? HIGH : LOW);

    // Send Line notification for RED LED
    if (ledRedOn) {
      sendLineNotification("G7ofr1tJtE8AgJCSrUaaOPW7kfKc95uznFnZBa2wbPQ", "เจ");
    }

    delay(1000); // debounce delay

    // Toggle the status of each LED
    ledYellowOn = !ledYellowOn;
    digitalWrite(LED_PIN_YELLOW, ledYellowOn ? HIGH : LOW);

    // Send Line notification for YELLOW LED
    if (ledYellowOn) {
      sendLineNotification("G7ofr1tJtE8AgJCSrUaaOPW7kfKc95uznFnZBa2wbPQ", "4");
    }

    delay(1000); // debounce delay

    // Toggle the status of each LED
    ledGreenOn = !ledGreenOn;
    digitalWrite(LED_PIN_GREEN, ledGreenOn ? HIGH : LOW);

    // Send Line notification for GREEN LED
    if (ledGreenOn) {
      sendLineNotification("G7ofr1tJtE8AgJCSrUaaOPW7kfKc95uznFnZBa2wbPQ", "ปวส.1");
    }

    delay(1000); // debounce delay
  }
}