#pragma once
#include "esp_http_server.h"
#include "esp_err.h"
#include <string>
#include <functional>

class WebServerHandler {
public:
  WebServerHandler();
  ~WebServerHandler();

  // Start web server, finds a free port starting from base_port
  // Returns the actual port used, or 0 on failure
  uint16_t start(const std::string& auth_key, uint16_t base_port = 8080);

  // Stop web server
  esp_err_t stop();

  // Check if server is running
  bool is_running() const { return server_ != nullptr; }

  // Get the current port
  uint16_t get_port() const { return current_port_; }

  // Get the auth key
  std::string get_auth_key() const { return auth_key_; }

  // Register a URI handler
  esp_err_t register_uri_handler(const httpd_uri_t* uri_handler);

  // Validate auth key from query string
  bool validate_auth(const char* query_string) const;

private:
  // Prevent copying
  WebServerHandler(const WebServerHandler&) = delete;
  WebServerHandler& operator=(const WebServerHandler&) = delete;

  httpd_handle_t server_ = nullptr;
  uint16_t current_port_ = 0;
  std::string auth_key_;
};