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

const char* ssid = "Galaxy A10s4563";
const char* password = "uxbw68830";

const int sensor1Pin = 2; // Sensor ya karibu zaidi na mlango
const int sensor2Pin = 3; // Sensor ya nje zaidi
const int goodButtonPin = 4;
const int badButtonPin = 5;

int peopleCount = 0;
bool sensor1State = LOW;
bool sensor2State = LOW;

void setup() {
  Serial.begin(9600);
  pinMode(sensor1Pin, INPUT);
  pinMode(sensor2Pin, INPUT);
  pinMode(goodButtonPin, INPUT);
  pinMode(badButtonPin, INPUT);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}

void loop() {
  // Kuhesabu Watu
  bool newSensor1State = digitalRead(sensor1Pin);
  bool newSensor2State = digitalRead(sensor2Pin);

  if (newSensor1State != sensor1State) {
    sensor1State = newSensor1State;
    if (sensor1State == HIGH && sensor2State == LOW) {
      peopleCount++;
      delay(500); // Debounce delay
    }
  }

  if (newSensor2State != sensor2State) {
    sensor2State = newSensor2State;
    if (sensor2State == HIGH && sensor1State == LOW) {
      peopleCount--;
      delay(500); // Debounce delay
    }
  }

  if (peopleCount >= 10) { // Mfano: ikiwa watu 10 wameingia, tuma taarifa
    sendDataToServer("count", String(peopleCount));
    peopleCount = 0; // Reset counter baada ya kutuma taarifa
  }

  // Kukusanya Maoni
  if (digitalRead(goodButtonPin) == HIGH) {
    sendDataToServer("feedback", "Good");
    delay(1000); // Debounce delay
  }
  if (digitalRead(badButtonPin) == HIGH) {
    sendDataToServer("feedback", "Bad");
    delay(1000); // Debounce delay
  }
}

void sendDataToServer(String dataType, String dataValue) {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    String serverUrl;
    String httpRequestData;

    if (dataType == "count") {
      serverUrl = "http://your_django_server_ip/api/update-count/";
      httpRequestData = "count=" + dataValue;
    } else if (dataType == "feedback") {
      serverUrl = "http://your_django_server_ip/api/receive-feedback/";
      httpRequestData = "feedback=" + dataValue;
    }

    http.begin(serverUrl);
    http.addHeader("Content-Type", "application/x-www-form-urlencoded");
    int httpResponseCode = http.POST(httpRequestData);

    if (httpResponseCode > 0) {
      String response = http.getString();
      Serial.println(httpResponseCode);
      Serial.println(response);
    } else {
      Serial.print("Error on sending POST: ");
      Serial.println(httpResponseCode);
    }

    http.end();
  } else {
    Serial.println("Error in WiFi connection");
  }
}