#include <sstream>
#include <string>
#include <ctime>
#include <algorithm>
#include <boost/algorithm/string/split.hpp>

#include "database.h"
#include "io_primitives.h"
#include "utils.h"

stringvec
split_on(string_view words, char sep)
{
  using namespace boost::algorithm;
  stringvec res;
  split(res, words, [sep](char c) { return c == sep; }, token_compress_on);
  return res;
}

// Turn a space-seperated list of words into a set of words
stringset
split_words(string_view words)
{
  using namespace boost::algorithm;
  stringset res;
  split(res, words, [](char c) { return c == ' '; }, token_compress_on);
  return res;
}

stringvec
split_words_vec(string_view words)
{
  auto res = split_on(words, ' ');
  std::sort(res.begin(), res.end());
  return res;
}

std::string
join_words(const stringset &words)
{
  std::ostringstream out;

  for (const auto &w : words) {
    out << w;
    out << ' ';
  }

  auto res = out.str();

  if (res.back() == ' ') {
    res.pop_back();
  }

  return res;
}

std::string
join_words(const stringvec &words)
{
  std::string res;

  for (auto i = words.begin(); i != words.end(); ++i) {
    if (i != words.begin()) {
      res += ' ';
    }
    res += *i;
  }
  return res;
}

std::string
get_time()
{
  std::time_t now = time(nullptr);
  std::string nowstr = std::ctime(&now);
  if (nowstr.back() == '\n') {
    nowstr.pop_back();
  }
  return nowstr;
}