#include <iostream>
#include <boost/tokenizer.hpp>
#include <boost/algorithm/string.hpp>
#include <string>
#include <algorithm>

#include "tokenizer.hpp"

namespace nlsr {

using namespace std;
using namespace boost;

void
Tokenizer::makeToken()
{
  char_separator<char> sep(m_seps.c_str());
  tokenizer<char_separator<char> >tokens(m_originalString, sep);
  tokenizer<char_separator<char> >::iterator tok_iter = tokens.begin();
  for (; tok_iter != tokens.end(); ++tok_iter)
  {
    string oneToken(*tok_iter);
    trim(oneToken);
    if (!oneToken.empty())
    {
      insertToken(oneToken);
    }
  }
  m_firstToken = m_vTokenList[0];
  makeRestOfTheLine();
}

void
Tokenizer::insertToken(const string& token)
{
  m_tokenList.push_back(token);
  m_vTokenList.push_back(token);
}

uint32_t
Tokenizer::getTokenPosition(string& token)
{
  int pos = -1;
  int i = 0;
  for (std::list<string>::iterator it = m_tokenList.begin();
       it != m_tokenList.end(); it++)
  {
    if ((*it) == token)
    {
      break;
    }
    i++;
  }
  if (i < m_tokenList.size())
  {
    pos = i;
  }
  return pos;
}

string
Tokenizer::getTokenString(uint32_t from , uint32_t to)
{
  string returnString = "";
  if ((to < m_tokenList.size()) &&
      (to >= from && to < m_tokenList.size()))
  {
    for (int i = from; i <= to; i++)
    {
      returnString += m_seps;
      returnString += m_vTokenList[i];
    }
  }
  trim(returnString);
  return returnString;
}

string
Tokenizer::getTokenString(uint32_t from)
{
  return getTokenString(from, m_tokenList.size() - 1);
}

static bool
tokenCompare(string& s1, string& s2)
{
  return s1 == s2;
}

void
Tokenizer::makeRestOfTheLine()
{
  m_restOfTheLine = getTokenString(1);
}

bool
Tokenizer::doesTokenExist(string token)
{
  std::list<string>::iterator it = std::find_if(m_tokenList.begin(),
                                                m_tokenList.end(),
                                                bind(&tokenCompare, _1 , token));
  if (it != m_tokenList.end())
  {
    return true;
  }
  return false;
}

}//namespace nlsr