#pragma once
/////////////////////////////////////////////////////////////////
// Strings.h - string utility functions                        //
//                                                             //
// Jim Fawcett, CSE687 - Object Oriented Design, Summer 2017   //
/////////////////////////////////////////////////////////////////

#include <string>
#include <sstream>
#include <vector>
#include <iostream>

/*--- remove whitespace from front and back of string argument ---*/

template <typename T>
std::basic_string<T> trim(const std::basic_string<T>& toTrim)
{
  std::basic_string<T> temp;
  std::locale loc;
  std::basic_string<T>::const_iterator iter = toTrim.begin();
  while (isspace(*iter, loc))
  {
    ++iter;
  }
  std::basic_string<T>::const_iterator itEnd = toTrim.end();
  for (; iter != toTrim.end(); ++iter)
  {
    temp += *iter;
  }
  std::basic_string<T>::reverse_iterator riter;
  size_t pos = temp.size();
  for (riter = temp.rbegin(); riter != temp.rend(); ++riter)
  {
    --pos;
    if (!isspace(*riter, loc))
    {
      break;
    }
  }
  temp.erase(++pos);
  return temp;
}
/*--- split sentinel separated strings into a vector of trimmed strings ---*/

template <typename T>
std::vector<std::basic_string<T>> split(const std::basic_string<T>& toSplit, T splitOn = ',')
{
  std::vector<std::basic_string<T>> splits;
  std::basic_string<T> temp;
  std::basic_string<T>::const_iterator iter;
  for(iter=toSplit.begin(); iter !=toSplit.end(); ++iter)
  {
    if(*iter != splitOn)
    {
      temp += *iter;
    }
    else
    {
      splits.push_back(trim(temp));
      temp.clear();
    }
  }
  if (temp.length() > 0)
    splits.push_back(trim(temp));
  return splits;
}

/*--- display vector of split strings, each on its own line ---*/

template <typename T>
void showSplits(const std::vector <std::basic_string<T>>& toSplit);

template<>
void showSplits(const std::vector<std::string>& splits)
{
  for (auto line : splits)
  {
    std::cout << "\n  \"" << line << "\"";
  }
  std::cout << "\n";
}

template<>
void showSplits(const std::vector<std::wstring>& splits)
{
  for (auto line : splits)
  {
    std::wcout << L"\n  L\"" << line << L"\"";
  }
  std::wcout << L"\n";
}

/*--- show enquoted string ---*/

void showString(const std::string& str);

void showString(const std::wstring& str);