#include "matador/logger/file_sink.hpp"

#include "matador/utils/os.hpp"
#include "matador/utils/string.hpp"

#include <vector>

namespace matador::logger {

file_sink::file_sink(const std::string &path)
: path_(path)
{
  std::string filename(path);
  // find last dir delimiter
  const char *last = strrchr(path.c_str(), os::DIR_SEPARATOR);
  if (last != nullptr) {
    path_.assign(path.data(), last-path.data());
  } else {
    path_.clear();
  }

  if (last != nullptr) {
    filename = (last + 1);
  }
  // extract base path and extension
  if (std::vector<std::string> result; utils::split(filename, '.', result) != 2) {
    throw std::logic_error("split path must consists of two elements");
  }
  // get the current path
  const auto pwd = os::get_current_dir();
  // make the path
  os::mkpath(path_);
  // change into the path
  os::chdir(path_);
  // create the file
  stream = os::fopen(filename, "a");
  if (stream == nullptr) {
    os::chdir(pwd);
    throw std::logic_error("error opening file");
  }
  os::chdir(pwd);
}

file_sink::file_sink(const char *path)
  : file_sink(std::string(path))
{}

file_sink::~file_sink()
{
  if (stream) {
    fclose(stream);
    stream = nullptr;
  }
}

std::string file_sink::path() const
{
  return path_;
}

stdout_sink::stdout_sink()
  : basic_file_sink(stdout)
{}

stderr_sink::stderr_sink()
  : basic_file_sink(stderr)
{}
}