websocket.hpp

#pragma once
#include <ossia/network/sockets/configuration.hpp>
#include <ossia/network/sockets/websocket_client.hpp>
#include <ossia/network/sockets/websocket_server.hpp>
 
#include <boost/asio/write.hpp>
/*
#include <boost/asio/connect.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/beast/core.hpp>
#include <boost/beast/websocket.hpp>
*/
#include <ossia/detail/algorithms.hpp>
 
namespace ossia::net
{
struct websocket_simple_client : websocket_client
{
  websocket_simple_client(
      const ws_client_configuration& conf, boost::asio::io_context& ctx)
      : ossia::net::websocket_client{}
      , m_host{conf.url}
  {
    m_client->init_asio(&ctx);
  }
 
  void connect() { }
 
  template <typename F>
  void receive(F onMessage)
  {
 
    std::weak_ptr<client_t> weak_client = m_client;
    m_client->set_message_handler(
        [handler = std::move(onMessage),
         weak_client](connection_handler hdl, client_t::message_ptr msg) {
      if(!weak_client.lock())
        return;
      const auto& data = msg->get_raw_payload();
      handler((const unsigned char*)data.data(), data.size());
    });
 
    websocket_client::connect(m_host);
  }
 
  void write(const char* data, std::size_t sz)
  {
    send_binary_message(std::string_view{data, sz});
  }
 
  void close()
  {
    if(connected())
    {
      boost::asio::post(m_client->get_io_service(), [this] { websocket_client::stop(); });
    }
  }
 
  std::string m_host;
};
 
struct websocket_simple_server : ossia::net::websocket_server
{
  websocket_simple_server(
      const ws_server_configuration& conf, ossia::net::network_context_ptr ctx)
      : ossia::net::websocket_server{ctx}
      , m_port{conf.port}
  {
    set_open_handler(
        [this](connection_handler hdl) { m_listeners.push_back(hdl.lock()); });
    set_close_handler([this](connection_handler hdl) {
      ossia::remove_erase(m_listeners, hdl.lock());
    });
  }
 
  template <typename F>
  void listen(F onMessage)
  {
    m_server->set_message_handler(
        [handler
         = std::move(onMessage)](connection_handler hdl, server_t::message_ptr msg) {
      const auto& data = msg->get_raw_payload();
      handler((const unsigned char*)data.data(), data.size());
    });
 
    websocket_server::listen(m_port);
  }
 
  void write(const char* data, std::size_t sz)
  {
    std::string_view dat{data, sz};
    for(auto& listener : m_listeners)
      send_binary_message(listener, dat);
  }
 
  void close()
  {
    boost::asio::post(m_server->get_io_service(), [this] { stop(); });
  }
 
  std::vector<std::shared_ptr<void>> m_listeners;
  int m_port{};
};
 
}