session.cc

/*
   Copyright 2021 Simon (psyomn) Symeonidis

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
#include "dump.h"
#include "message.h"
#include "session.h"
#include "server.h"
#include "utils.h"

#include <sstream>

namespace psy::psycal {
  void Session::PortStrIntoInt(const char* opt) {
    std::stringstream ss(opt);
    ss >> port_;
  }

  void Session::PrintUsage(const char* name) const {
    std::cout << "usage:" << std::endl
              << "  " << name  << std::endl
              << "  -d daemonize" << std::endl
              << "  -f foreground" << std::endl
              << "  -s server mode" << std::endl
              << "  -p port " << std::endl
              << "  -t add event" << std::endl
              << "  -x dump psycal file contents (debug)" << std::endl;
  }

  void Session::PrintUsageAndExit(const char* name, const int exit_code) const {
    this->PrintUsage(name);
    exit(exit_code);
  }

  void Session::StartServer(const std::uint16_t port) {
    psy::psycal::Server server(port);
    server.Start();
  }

  void Session::SendEvent(const psy::psycal::Event& event, const Session& session) const {
    namespace pp = psy::psycal;
    auto buffer = pp::Message::IntoBuffer(std::vector<pp::Event>{event});

    psy::net::UDPClient client(session.host_, session.port_);

    client.Send(buffer.data());
    if (client.Errored()) std::cerr << "error sending message" << std::endl;
  }

  void Session::DumpEvents(std::string path) const {
    std::ifstream is(path, std::ifstream::binary);
    std::cout << "contents of: " << path << std::endl;
    for (const auto& event : ReadEventsFrom(is))
      std::cout << event.GetUnixTimestamp() << ":" << event.GetMessage() << std::endl;
  }

  void Session::MakeDirs() const {
    namespace u = psy::psycal::Utils;

    std::string message;

    switch (u::CreateApplicationDirectories()) {
    case u::CreateAppDirStatus::OkCreate:
      message = "creating";
      break;
    case u::CreateAppDirStatus::OkExists:
      message = "exists";
      break;
    case u::CreateAppDirStatus::ErrGenConfigPath:
      message = "error generating config path -- do you have a home?";
      break;
    case u::CreateAppDirStatus::Error:
      message = "general error";
      break;
    default:
      std::cerr << "and in strange aeons even death might die" << std::endl;
      abort();
    }
  }
}