#pragma once

#include "Messages/IMessage.h"
#include "Thing.h"

namespace RoboidControl {

constexpr int MAX_THING_COUNT = 256;

/// @brief A participant is a device which manages things.
/// It can communicate with other participant to synchronise the state of
/// things. This class is used to register the things the participant is
/// managing. It also maintains the communcation information to contact the
/// participant. It is used as a basis for the local participant, but also as a
/// reference to remote participants.
class Participant {
#pragma region Init

 public:
  /// @brief Create a generic participant
  Participant();
  /// @brief Create a new participant with the given communcation info
  /// @param ipAddress The IP address of the participant
  /// @param port The UDP port of the participant
  /// @remarks This does not belong here, it should move to ParticipantUDP or
  /// something like that in the future
  Participant(const char* ipAddress, int port);
  /// @brief Destructor for the participant
  ~Participant();

  /// @brief The local participant for this application
  static Participant* LocalParticipant;
  /// @brief Replace the local participant
  /// @param newParticipant The new local Participant
  static void ReplaceLocalParticipant(Participant& newParticipant);

#pragma endregion Init

#pragma region Properties

 public:
  /// @brief The name of the participant
  const char* name = "Participant";

  /// @brief The network Id to identify the participant
  unsigned char networkId = 0;

  /// @brief The root thing for this participant
  Thing* root = nullptr;

 public:
#if defined(NO_STD)
  unsigned char thingCount = 0;
  Thing* things[MAX_THING_COUNT];
#else
  /// @brief  The things managed by this participant
  std::list<Thing*> things;
#endif
  /// @brief Find a thing managed by this participant
  /// @param networkId The network ID of the thing
  /// @param thingId The ID of the thing
  /// @return The thing if found, nullptr when no thing has been found
  Thing* Get(unsigned char networkId, unsigned char thingId);
  /// @brief Add a new thing for this participant.
  /// @param thing The thing to add
  /// @param checkId If true, the thing.id is regenerated if it is zero
  void Add(Thing* thing, bool checkId = true);
  /// @brief Remove a thing for this participant
  /// @param thing The thing to remove
  void Remove(Thing* thing);

#pragma endregion Properties

#pragma region Update

 public:
  /// @brief Update all things for this participant
  virtual void Update(bool recurse = true);

#pragma endregion Update

#pragma region Send

 public:
  char buffer[1024];

  virtual bool Send(IMessage* msg);

#pragma endregion Send

};

}  // namespace RoboidControl