#include <WiFi.h>
#include <WiFiClientSecure.h>
#include "DHTesp.h"
#include <HTTPClient.h>

// ⚙️ Simulation Wi-Fi (Wokwi)
const char* WIFI_SSID  = "Wokwi-GUEST";
const char* WIFI_PASS  = "";

// 🌐 URL FastAPI (Tunnelmole/ngrok)
const char* TUNNEL_URL = "https://haqanp-ip-154-125-86-208.tunnelmole.net";

// GPIOs
const int DHT_PIN = 15;
const int LED_PIN = 13;

WiFiClientSecure client;  // Utiliser WiFiClientSecure pour HTTPS
DHTesp dht;

bool ledStatus = false;

void setup() {
  Serial.begin(115200);
  pinMode(LED_PIN, OUTPUT);
  digitalWrite(LED_PIN, LOW);

  dht.setup(DHT_PIN, DHTesp::DHT22);

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

  client.setInsecure();  // Désactive la validation du certificat (pour test uniquement)
}

void loop() {
  float temperature = dht.getTemperature();
  float humidity    = dht.getHumidity();

  Serial.printf("🌡 %.1f°C 💧 %.1f%% LED=%s\n",
    temperature, humidity, ledStatus ? "ON" : "OFF");

  if (WiFi.status() == WL_CONNECTED) {
    // --- POST /update ---
    HTTPClient http;
    String url = String(TUNNEL_URL) + "/update";

    String payload = "{";
    payload += "\"temperature\":" + String(temperature, 1) + ",";
    payload += "\"humidity\":"    + String(humidity, 1) + ",";
    payload += "\"state\":"       + String(ledStatus ? "true" : "false");
    payload += "}";

    Serial.println("POST URL: " + url);
    Serial.println("Payload: " + payload);

    if (http.begin(client, url)) {
      http.addHeader("Content-Type", "application/json");
      int httpCode = http.POST(payload);
      Serial.printf("POST /update code: %d\n", httpCode);
      if (httpCode > 0) {
        String response = http.getString();
        Serial.println("Response: " + response);
      } else {
        Serial.println("POST failed: " + http.errorToString(httpCode));
      }
      http.end();
    } else {
      Serial.println("HTTP begin failed");
    }

    // --- GET /led ---
    HTTPClient getClient;
    String ledUrl = String(TUNNEL_URL) + "/led";
    Serial.println("GET URL: " + ledUrl);

    if (getClient.begin(client, ledUrl)) {
      int code = getClient.GET();
      Serial.printf("GET /led code: %d\n", code);
      if (code == 200) {
        String resp = getClient.getString();
        Serial.println("GET Response: " + resp);

        bool newState = ledStatus;

        if (resp.indexOf("\"state\":true") >= 0) newState = true;
        else if (resp.indexOf("\"state\":false") >= 0) newState = false;

        if (newState != ledStatus) {
          ledStatus = newState;
          digitalWrite(LED_PIN, ledStatus ? HIGH : LOW);
          Serial.printf("💡 LED updated: %s\n", ledStatus ? "ON" : "OFF");
        }
      } else {
        Serial.println("GET /led failed");
      }
      getClient.end();
    } else {
      Serial.println("HTTP begin failed for GET");
    }
  }

  delay(10000); // toutes les 10s
}