#pragma once

#include "envoy/network/listen_socket.h"

#include "envoy/server/admin.h"

#include "envoy/server/instance.h"

#include "source/common/common/assert.h"

#include "source/common/network/listen_socket_impl.h"

#include "source/server/admin/config_tracker_impl.h"

namespace Envoy {

namespace Server {

/**

 * Config-validation-only implementation Server::Admin. This implementation is

 * needed because Admin is referenced by components of the server that add and

 * remove handlers.

 */

class ValidationAdmin : public Admin {

public:

  // We want to implement the socket interface without implementing the http listener function.

  // This is useful for TAP because it wants to emit warnings when the address type is UDS

  explicit ValidationAdmin(Network::Address::InstanceConstSharedPtr address)

      : socket_(address ? std::make_shared<Network::TcpListenSocket>(nullptr, std::move(address),

                                                                     nullptr)

                        : nullptr) {}

  bool addHandler(const std::string&, const std::string&, HandlerCb, bool, bool,

                  const ParamDescriptorVec& = {}) override;

  bool addStreamingHandler(const std::string&, const std::string&, GenRequestFn, bool, bool,

                           const ParamDescriptorVec& = {}) override;

  bool removeHandler(const std::string&) override;

  const Network::Socket& socket() override;

  ConfigTracker& getConfigTracker() override;

  void startHttpListener(std::list<AccessLog::InstanceSharedPtr> access_logs,

                         Network::Address::InstanceConstSharedPtr address,

                         Network::Socket::OptionsSharedPtr) override;

  Http::Code request(absl::string_view path_and_query, absl::string_view method,

                     Http::ResponseHeaderMap& response_headers, std::string& body) override;

  void addListenerToHandler(Network::ConnectionHandler* handler) override;

  uint32_t concurrency() const override { return 1; }

  void closeSocket() override {}

  RequestPtr makeRequest(AdminStream&) const override { return nullptr; }

private:

  ConfigTrackerImpl config_tracker_;

  Network::SocketSharedPtr socket_;

};

} // namespace Server

} // namespace Envoy