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

// WiFi and MQTT Parameters
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "958a840a14884d69817b59382c9e127e.s1.eu.hivemq.cloud";
const char* mqtt_username = "";
const char* mqtt_password = "";
const int mqtt_port = 8883;

// IFTTT Webhooks Parameters
const char* ifttt_key = "Fk_A0bb2q7VW_SNtmZElw";
const char* ifttt_event = "alerte_chute_mifka";

WiFiClientSecure espClient;
PubSubClient client(espClient);

// Certificat root CA
static const char *root_ca PROGMEM = R"EOF(
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----
)EOF";

const int CHUTE_SWITCH_PIN = 2;
const int SWITCH_1_PIN = 5;
const int SWITCH_2_PIN = 18;
const int SWITCH_3_PIN = 19;
const int LED_PIN=4;

void setup() {
  Serial.begin(115200);
  setup_wifi();
  client.setServer(mqtt_server, mqtt_port);
  espClient.setCACert(root_ca);
  pinMode(CHUTE_SWITCH_PIN, INPUT_PULLUP);
  pinMode(SWITCH_1_PIN, INPUT_PULLUP);
  pinMode(SWITCH_2_PIN, INPUT_PULLUP);
  pinMode(SWITCH_3_PIN, INPUT_PULLUP);
  pinMode(4, OUTPUT);
  digitalWrite(4, LOW);  
}

void setup_wifi() {
  delay(10);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("WiFi connected");
}

void reconnect() {
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    String clientId = "ESP32Client-";
    clientId += String(random(0xffff), HEX);
    if (client.connect(clientId.c_str(), mqtt_username, mqtt_password)) {
      Serial.println("connected");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}

void sendIftttAlert() {
  HTTPClient http;
  String url = "http://maker.ifttt.com/trigger/" + String(ifttt_event) + "/with/key/" + String(ifttt_key);
  http.begin(url);
  int httpCode = http.POST("");
  if (httpCode > 0) {
    Serial.println("IFTTT alert sent");
    digitalWrite(LED_PIN, HIGH);  // LED  pin 4
   
  } else {
    Serial.println("Failed to send IFTTT alert");
  }
  http.end();
}


void loop() {
  if (!client.connected()) {
    reconnect();
  }
  client.loop();

  int chuteSwitchState = digitalRead(CHUTE_SWITCH_PIN);
  if (chuteSwitchState == 1) {
    Serial.println("Chute switch is ON");
    if (client.publish("/urgence/chute", "ON")) {
      Serial.println("Urgence message sent");
    } else {
      Serial.println("Message failed to send");
    }
    sendIftttAlert();
  }

  checkSwitch(SWITCH_1_PIN, "/activite");
  checkSwitch(SWITCH_2_PIN, "/activite");
  checkSwitch(SWITCH_3_PIN, "/activite");

  delay(2000);  // wait for 2 seconds
}

void checkSwitch(int pin, const char* topic) {
  int currentState = digitalRead(pin);
  if (currentState == 1) {
    Serial.print("Switch ");
    Serial.print(pin);
    Serial.println(" is ON");
    String message;
    if (pin == 5) {
      message = "immobile";
    } else if (pin == 18) {
      message = "marche";
    } else if (pin == 19) {
      message = "chute";
    } else {
      message = String(pin) + ":ON";
    }
    Serial.print("Publishing to topic: ");
    Serial.println(topic);
    Serial.print("Message: ");
    Serial.println(message);
    if (client.publish(topic, message.c_str())) {
      Serial.println("Message sent");
    } else {
      Serial.println("Message failed to send");
    }
  }
}