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

// 🔹 WiFi 連線資訊
char SSID[] = "你的 WiFi 名稱";   
char PASSWORD[] = "你的 WiFi 密碼"; 

// 🔹 Make.com Webhook URL（用於寫入 Notion）
const char* MAKE_WEBHOOK_URL = "https://hook.integromat.com/你的webhook網址";

// 🔹 LINE Notify Token（當氣體超標時發送警報）
#define LINE_TOKEN "你的 LINE Notify 金鑰"

// 🔹 MQ-2 煙霧傳感器
int gasSensor = A5;
int qualityLevel = 2; // 傳感器敏感度 (qualityLevel * 200 = gasValue)

// 🔹 氣體濃度警戒值
int GAS_WARNING_LEVEL = 500; 

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

    // 連線到 WiFi
    Serial.print("正在連接 WiFi: ");
    Serial.println(SSID);
    WiFi.begin(SSID, PASSWORD);

    while (WiFi.status() != WL_CONNECTED) {
        Serial.print(".");
        delay(500);
    }

    Serial.println("\nWiFi 連線成功!");
    Serial.print("IP 地址: ");
    Serial.println(WiFi.localIP());

    // 設定 LINE Notify Token
    LINE.setToken(LINE_TOKEN);
}

void loop() {
    if (WiFi.status() == WL_CONNECTED) {
        HTTPClient http;
        http.begin(MAKE_WEBHOOK_URL);
        http.addHeader("Content-Type", "application/json");

        // 讀取 MQ-2 傳感器數值
        int gasValue = analogRead(gasSensor) * qualityLevel;
        bool isOverLimit = gasValue > GAS_WARNING_LEVEL;

        Serial.print("偵測到的氣體濃度: ");
        Serial.println(gasValue);

        // 建立 JSON 數據
        String jsonPayload = "{";
        jsonPayload += "\"timestamp\": \"" + String(millis()) + "\",";
        jsonPayload += "\"sensor_id\": \"MQ-2\",";
        jsonPayload += "\"value\": " + String(gasValue) + ",";
        jsonPayload += "\"over_limit\": \"" + String(isOverLimit ? "是" : "否") + "\"";
        jsonPayload += "}";

        // 發送資料到 Make.com
        int httpResponseCode = http.POST(jsonPayload);
        if (httpResponseCode > 0) {
            Serial.print("數據發送成功, HTTP 回應碼: ");
            Serial.println(httpResponseCode);
        } else {
            Serial.print("數據發送失敗, 錯誤: ");
            Serial.println(http.errorToString(httpResponseCode).c_str());
        }

        http.end();

        // 🔹 如果超標，發送 LINE Notify 警報
        if (isOverLimit) {
            String message = "⚠️ 煙霧警報！\n氣體濃度超標！\n";
            message += "當前濃度：" + String(gasValue) + "\n";
            message += "請儘速查看環境狀況！";
            LINE.notify(message);
        }
    } else {
        Serial.println("WiFi 未連線, 無法發送數據");
    }

    delay(60000); // 每 60 秒發送一次數據
}