/*
 * Ricochet - A minimalist CLI web browser for fast, distraction-free navigation.
 * Copyright (C) 2026  Richard Qin
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#pragma once

#include "ricochet/tui/session.hh"

#include <cstddef>
#include <deque>
#include <mutex>
#include <vector>

namespace ricochet::tui::detail {

class Mailbox
{
public:
  Mailbox();
  ~Mailbox();
  Mailbox( const Mailbox& ) = delete;
  Mailbox& operator=( const Mailbox& ) = delete;

  PostResult post( HostUpdate update );
  std::vector<HostUpdate> take( std::size_t limit );
  int descriptor() const noexcept;
  void close() noexcept;

private:
  int event_fd_;
  std::mutex mutex_ {};
  std::deque<HostUpdate> updates_ {};
  bool closed_ { false };
};

} // namespace ricochet::tui::detail