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

#define WIFI_SSID "OPPO A31"
#define WIFI_PASS "0965565178"

#define LINE_NOTIFY_TOKEN "RdGRIYv67YLzIX9q3qjtrshNP9bbpm92UqIc2Ml96NS"

#define DHTPIN 21      // DHT22 連接到 ESP32 的腳位
#define DHTTYPE DHT22  // 使用 DHT22 感測器

DHT dht(DHTPIN, DHTTYPE);

bool smartMonitoringEnabled = false;
WiFiClient client;

void setup() {
  Serial.begin(115200);
  delay(2000);

  // 連接 WiFi
  connectToWiFi();

  // 初始化 DHT 感應器
  dht.begin();
}

void loop() {
  // 檢查溫濕度達到設定值
  if (smartMonitoringEnabled) {
    float temperature = dht.readTemperature();
    float humidity = dht.readHumidity();

    if ((temperature < 18 || temperature > 32) || humidity > 70) {
      // 溫濕度達到條件，發送 Line 通知
      sendLineNotification(temperature, humidity);
      smartMonitoringEnabled = false;  // 一次性通知，避免重複通知
    }
  }

  delay(1000);
}

void connectToWiFi() {
  Serial.println("Connecting to WiFi...");
  WiFi.begin(WIFI_SSID, WIFI_PASS);

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

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

void sendLineNotification(float temperature, float humidity) {
  Serial.println("Sending Line Notification...");

  HTTPClient http;
  String url = "https://notify-api.line.me/api/notify";
  String message = "Alert! Temperature: " + String(temperature) + "°C, Humidity: " + String(humidity) + "%";

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

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

  if (httpResponseCode > 0) {
    Serial.print("Line Notify Success, Response code: ");
    Serial.println(httpResponseCode);
  } else {
    Serial.print("Error on Line Notify, Response code: ");
    Serial.println(httpResponseCode);
  }

  http.end();
}