// 🔒 LINE Notify Token
#define LINE_NOTIFY_TOKEN "your_line_notify_token"

// 📶 WiFi
char ssid[] = "Wokwi-GUEST"; // ชื่อ WiFi
char pass[] = "";            // รหัส WiFi

// 🧾 Google Sheets
const char* SHEET_URL = "https://script.google.com/macros/s/AKfycbwjoVnO4vLYQTGeaV-12N75KHb5IuNYC1Ra7dsxIcHYZpq0-vvxecjtTXKJwz4B1Yk5fA/exec";

// 🔌 Pin Configuration
#define RELAY_VALVE 26
#define RELAY_FIRE  27
#define PIR_PIN     33
#define LED_PIN     13
#define BUZZER_PIN  25   // ➕ เพิ่ม Buzzer

#define BLYNK_TEMPLATE_ID "TMPL6sIAef5i4"
#define BLYNK_TEMPLATE_NAME "Gastest"
#define BLYNK_AUTH_TOKEN "bkMXILHO37ub_w_w6E20hzlp9gX0q7Ce"

#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <BlynkSimpleEsp32.h>
#include <TimeLib.h>
#include <WidgetRTC.h>
#include <HTTPClient.h>

BlynkTimer timer;
WidgetRTC rtc;
bool systemEnabled = false;

unsigned long lastMotionTime = 0;
const unsigned long cooldownPeriod = 30000; // 30s

// ===== LINE Notify =====
void sendLineNotify(String message) {
  WiFiClientSecure client;
  client.setInsecure();
  HTTPClient http;
  http.begin(client, "https://notify-api.line.me/api/notify");
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");
  http.addHeader("Authorization", "Bearer " + String(LINE_NOTIFY_TOKEN));
  int httpCode = http.POST("message=" + message);
  Serial.printf("📨 LINE Notify: %d\n", httpCode);
  http.end();
}

// ===== Google Sheet =====
void logToGoogleSheet(String event) {
  WiFiClientSecure client;
  client.setInsecure();
  HTTPClient http;
  if (http.begin(client, SHEET_URL)) {
    http.addHeader("Content-Type", "application/json");
    String payload = "{\"event\":\"" + event + "\"}";
    int httpCode = http.POST(payload);   // ⭐ ต้องเก็บค่า httpCode ด้วย
    Serial.printf("📤 Google Sheets Response: %d\n", httpCode);
    if (httpCode > 0) {
      String response = http.getString();
      Serial.println("Response: " + response);
    }
    http.end();
  }
}


// ===== Alarm Buzzer ก่อนยิง =====
void buzzerWarning() {
  digitalWrite(BUZZER_PIN, HIGH);
  delay(2000);
  digitalWrite(BUZZER_PIN, LOW);
  delay(1000);
  digitalWrite(BUZZER_PIN, HIGH);
  delay(2000);
  digitalWrite(BUZZER_PIN, LOW);
  delay(1000);
  digitalWrite(BUZZER_PIN, HIGH);
  delay(2000);
  digitalWrite(BUZZER_PIN, LOW);
  delay(1000);
  
}

// ===== ยิงแก๊สไล่นก =====
void fireGas(String source) {
  Serial.println("🔥 ไล่นกเริ่มจาก " + source);

  buzzerWarning();  // 🔔 แจ้งเตือนก่อนยิง

  digitalWrite(RELAY_VALVE, HIGH);
  delay(4000);
  digitalWrite(RELAY_VALVE, LOW);
  digitalWrite(RELAY_FIRE, HIGH);
  delay(4000);
  digitalWrite(RELAY_FIRE, LOW);

  logToGoogleSheet("🔥 ไล่นกจาก " + source);
  sendLineNotify("🔥 ไล่นกจาก " + source);

  digitalWrite(LED_PIN, HIGH);
  delay(2000);
  digitalWrite(LED_PIN, LOW);
}

// ===== ตรวจจับ PIR =====
void checkPIR() {
  int motion = digitalRead(PIR_PIN);
  unsigned long now = millis();

  if (motion == HIGH && systemEnabled && (now - lastMotionTime >= cooldownPeriod)) {
    lastMotionTime = now;
    fireGas("PIR ตรวจจับนก");
  }
}

// ===== Blynk =====
BLYNK_CONNECTED() {
  rtc.begin();
  Blynk.syncAll();
}

BLYNK_WRITE(V0) {
  systemEnabled = param.asInt();
  Serial.printf("⚙️ ระบบ: %s\n", systemEnabled ? "เปิด" : "ปิด");
}

BLYNK_WRITE(V3) {
  if (param.asInt() == 1) fireGas("กดจาก Blynk");
}

// ===== Setup =====
void setup() {
  Serial.begin(115200);
  pinMode(RELAY_VALVE, OUTPUT);
  pinMode(RELAY_FIRE, OUTPUT);
  pinMode(PIR_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);

  digitalWrite(RELAY_VALVE, LOW);
  digitalWrite(RELAY_FIRE, LOW);

  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\n✅ WiFi connected");

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  rtc.begin();

  timer.setInterval(1000L, checkPIR);
}

// ===== Loop =====
void loop() {
  Blynk.run();
  timer.run();
}