#ifndef LLARP_I_LINK_MANAGER_HPP
#define LLARP_I_LINK_MANAGER_HPP

#include <link/server.hpp>
#include <util/thread/logic.hpp>
#include <util/types.hpp>

#include <functional>

struct llarp_buffer_t;

namespace llarp
{
  using Logic_ptr = std::shared_ptr< Logic >;

  struct RouterContact;
  struct ILinkSession;
  struct IOutboundSessionMaker;
  struct RouterID;

  struct ILinkManager
  {
    virtual ~ILinkManager() = default;

    virtual LinkLayer_ptr
    GetCompatibleLink(const RouterContact &rc) const = 0;

    virtual IOutboundSessionMaker *
    GetSessionMaker() const = 0;

    virtual bool
    SendTo(const RouterID &remote, const llarp_buffer_t &buf,
           ILinkSession::CompletionHandler completed) = 0;

    virtual bool
    HasSessionTo(const RouterID &remote) const = 0;

    virtual void
    PumpLinks() = 0;

    virtual void
    AddLink(LinkLayer_ptr link, bool inbound = false) = 0;

    virtual bool
    StartLinks(Logic_ptr logic,
               std::shared_ptr< thread::ThreadPool > worker) = 0;

    virtual void
    Stop() = 0;

    virtual void
    PersistSessionUntil(const RouterID &remote, llarp_time_t until) = 0;

    virtual void
    ForEachPeer(std::function< void(const ILinkSession *, bool) > visit,
                bool randomize = false) const = 0;

    virtual void
    ForEachPeer(std::function< void(ILinkSession *) > visit) = 0;

    virtual void
    ForEachInboundLink(std::function< void(LinkLayer_ptr) > visit) const = 0;

    virtual size_t
    NumberOfConnectedRouters() const = 0;

    virtual size_t
    NumberOfConnectedClients() const = 0;

    virtual size_t
    NumberOfPendingConnections() const = 0;

    virtual bool
    GetRandomConnectedRouter(RouterContact &router) const = 0;

    virtual void
    CheckPersistingSessions(llarp_time_t now) = 0;

    virtual util::StatusObject
    ExtractStatus() const = 0;
  };

}  // namespace llarp

#endif  // LLARP_I_LINK_MANAGER_HPP