participant.h

/*
 * Copyright 2025 LiveKit
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an “AS IS” BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#pragma once
 
#include <cstdint>
#include <memory>
#include <string>
#include <unordered_map>
 
#include "livekit/ffi_handle.h"
#include "livekit/room_delegate.h"
#include "livekit/visibility.h"
 
namespace livekit {
 
enum class ParticipantKind { Standard = 0, Ingress, Egress, Sip, Agent };
 
class LIVEKIT_API Participant {
public:
  Participant(FfiHandle handle, std::string sid, std::string name, std::string identity, std::string metadata,
              std::unordered_map<std::string, std::string> attributes, ParticipantKind kind, DisconnectReason reason)
      : handle_(std::move(handle)),
        sid_(std::move(sid)),
        name_(std::move(name)),
        identity_(std::move(identity)),
        metadata_(std::move(metadata)),
        attributes_(std::move(attributes)),
        kind_(kind),
        reason_(reason) {}
  virtual ~Participant() = default;
 
  // Plain getters (caller ensures threading)
  const std::string& sid() const noexcept { return sid_; }
  const std::string& name() const noexcept { return name_; }
  const std::string& identity() const noexcept { return identity_; }
  const std::string& metadata() const noexcept { return metadata_; }
  const std::unordered_map<std::string, std::string>& attributes() const noexcept { return attributes_; }
  ParticipantKind kind() const noexcept { return kind_; }
  DisconnectReason disconnectReason() const noexcept { return reason_; }
 
  uintptr_t ffiHandleId() const noexcept { return handle_.get(); }
 
protected:
  virtual std::shared_ptr<TrackPublication> findTrackPublication(const std::string& sid) const = 0;
 
  friend class Room;
 
private:
  FfiHandle handle_;
  std::string sid_, name_, identity_, metadata_;
  std::unordered_map<std::string, std::string> attributes_;
  ParticipantKind kind_;
  DisconnectReason reason_;
};
 
} // namespace livekit