#pragma once

#include "esp_http_server.h"
#include <string>
#include "network/web_server_handler.h"
#include "ui/apps/iotdis/settings/settings_handler.h"
#include "ui/apps/iotdis/bridge/bridge.h"

/**
 * @brief HTTP request handlers for Discord Bridge settings web interface
 *
 * These handlers serve the web configuration page and process
 * settings updates and connection tests.
 */
class WebHandler {
public:
  WebHandler(
    SettingHandler* setting_handler,
    IotDisBridge* bridge
  ) :
    web_server_(std::make_unique<WebServerHandler>())
    , setting_handler_(setting_handler)
    , bridge_(bridge) { }
  ~WebHandler();

  esp_err_t start_web_server();
  esp_err_t stop_web_server();

  std::string get_url() const;
  std::string get_device_ip() const;
  uint16_t get_port() const;

  bool is_running() const {
    return web_server_ && web_server_->is_running();
  }

private:

  std::string generate_auth_key_();

  esp_err_t register_web_endpoints_();

  /**
   * @brief Serve the main settings configuration page
   *
   * Validates authentication and serves an HTML form with current settings.
   * Requires auth query parameter matching the session key.
   *
   * @param req HTTP request object
   * @return ESP_OK on success
   */
  static esp_err_t settings_page_handler_(httpd_req_t* req);

  /**
   * @brief Save bridge connection settings
   *
   * Parses POST data containing ip, port, and localPort fields.
   * Validates and persists settings to NVS storage.
   *
   * @param req HTTP request object
   * @return ESP_OK on success
   */
  static esp_err_t save_settings_handler_(httpd_req_t* req);

  /**
   * @brief Test connection to Discord bridge
   *
   * Creates temporary UDP client to test connectivity with provided settings.
   * Returns JSON response indicating success or failure.
   *
   * @param req HTTP request object
   * @return ESP_OK on success
   */
  static esp_err_t test_connection_handler_(httpd_req_t* req);

  std::unique_ptr<WebServerHandler> web_server_;
  SettingHandler* setting_handler_ = nullptr;  ///< Pointer to settings handler (not owned)

  std::string auth_key_;
  IotDisBridge* bridge_ = nullptr;      ///< Pointer to IotDisBridge (not owned)
};