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#pragma once

#include <boost/asio/io_context.hpp>
#include <boost/asio/ssl/context.hpp>
#include <boost/system/error_code.hpp>
#include <boost/thread/mutex.hpp>
#include <functional>
#include <memory>
#include <string>
#include "byte_slice.h"    // monero/contrib/epee/include
#include "common/expect.h" // monero/src
#include "net/net_ssl.h"   // monero/contrib/epee/include

namespace net { namespace http
{
  struct client_state;
  using server_response_func = void(boost::system::error_code, std::string);

  //! Primarily for webhooks, where the response is (basically) ignored.
  class client
  {
    std::weak_ptr<client_state> state_;
    std::shared_ptr<boost::asio::ssl::context> ssl_;
    boost::mutex sync_;

    expect<void> queue_async(boost::asio::io_context& io, std::string url, epee::byte_slice json_body, std::function<server_response_func> notifier);

  public:
    explicit client(epee::net_utils::ssl_verification_t verify);
    explicit client(std::shared_ptr<boost::asio::ssl::context> ssl);
    ~client();

    const std::shared_ptr<boost::asio::ssl::context>& ssl_context() const noexcept
    { return ssl_; }

    //! Never blocks. Thread safe. \return `success()` if `url` is valid.
    expect<void> post_async(boost::asio::io_context& io, std::string url, epee::byte_slice json_body);

    /*! Never blocks. Thread safe. Calls `notifier` with server response iff
      `success()` is returned.
      \return `success()` if `url` is valid. */
    expect<void> get_async(boost::asio::io_context& io, std::string url, std::function<server_response_func> notifier);
  };
}} // net // http