#include <iostream>
#include "freeling.h"
using namespace std;


//---------------------------------------------
// Extract lemma and sense of word 'w' and store them
// in 'lem' and 'sens' respectively
//---------------------------------------------

void extract_lemma_and_sense(const freeling::word &w, wstring &lem, wstring &sens) {
   lem = w.get_lemma();
   if (not w.get_senses().empty()) sens = w.get_senses().begin()->first;
   else sens=L"";
}

//---------------------------------------------
// Do whatever is needed with analyzed sentences
//---------------------------------------------

void ProcessSentences(const list<freeling::sentence> &ls) {

  // for each sentence in list
  for (list<freeling::sentence>::const_iterator s=ls.begin(); s!=ls.end(); ++s) {
    for  (freeling::dep_tree::const_iterator p=s->get_dep_tree().begin(); p!=s->get_dep_tree().end(); p++) {
      // if it is a verb, check dependants
      if  (p->get_word().get_tag()[0]==L'V') {
        wstring ssubj, lsubj;
        wstring sdobj, ldobj;
        for (freeling::dep_tree::const_sibling_iterator ch = p.sibling_begin(); ch!=p.sibling_end(); ch++) { 
          if (ch->get_label()==L"SBJ") 
            extract_lemma_and_sense(ch->get_word(), lsubj, ssubj);

          else if (ch->get_label()==L"OBJ") 
            extract_lemma_and_sense(ch->get_word(), ldobj, sdobj);
        }
        // if we found a SVO triple, output it
        if (lsubj!=L"" and ldobj!=L"") {
          wstring spred, lpred;
          extract_lemma_and_sense(p->get_word(), lpred, spred);

          wcout << L"SVO : (pred:    " << lpred << L" [" << spred << L"]" << endl;
          wcout << L"       subject: " << lsubj << L" [" << ssubj << L"]" << endl; 
          wcout << L"       dobject: " << ldobj << L" [" << sdobj << L"]" << endl;
          wcout << L"      )" << endl;
        }
      }
    }
  }
}

//---------------------------------------------
// Set desired options for morphological analyzer
//---------------------------------------------

freeling::maco_options my_maco_options (const wstring &lang, const wstring &lpath) {
  // create options holder 
  freeling::maco_options opt(lang);
  // Provide files for morphological submodules. Note that it is not necessary
  // to set files for modules that will not be used
  opt.UserMapFile=L"";
  opt.LocutionsFile=lpath+L"locucions.dat"; opt.AffixFile=lpath+L"afixos.dat";
  opt.ProbabilityFile=lpath+L"probabilitats.dat"; opt.DictionaryFile=lpath+L"dicc.src";
  opt.NPdataFile=lpath+L"np.dat"; opt.PunctuationFile=lpath+L"../common/punct.dat"; 
  return opt;
}

/////////////   MAIN PROGRAM  /////////////////////

int main (int argc, char **argv) {

  // set locale to an UTF8 compatible locale
  freeling::util::init_locale(L"default");

  // get requested language from arg1, or English if not provided
  wstring lang = L"en";
  if (argc > 1) lang = freeling::util::string2wstring(argv[1]);
  // get installation path to use from arg2, or use /usr/local if not provided
  wstring ipath = L"/usr/local";
  if (argc > 2) ipath = freeling::util::string2wstring(argv[2]);

  // path to language data
  wstring lpath = ipath+L"/share/freeling/"+lang+L"/";

  // create analyzers
  freeling::tokenizer tk(lpath+L"tokenizer.dat"); 
  freeling::splitter sp(lpath+L"splitter.dat");

  // create the analyzer with the required set of maco_options
  freeling::maco_options opt = my_maco_options(lang,lpath);
  freeling::maco morfo(opt);

  // then, (de)activate required modules
  morfo.set_active_options (false,  // UserMap
                            true,  // NumbersDetection,
                            true,  // PunctuationDetection,
                            true,  // DatesDetection,
                            true,  // DictionarySearch,
                            true,  // AffixAnalysis,
                            false, // CompoundAnalysis,
                            true,  // RetokContractions,
                            true,  // MultiwordsDetection,
                            true,  // NERecognition,
                            false, // QuantitiesDetection,
                            true); // ProbabilityAssignment

  // create a hmm tagger for spanish (with retokenization ability, and forced 
  // to choose only one tag per word)
  freeling::hmm_tagger tagger(lpath+L"tagger.dat", true, FORCE_TAGGER);

  // create sense annotator
  freeling::senses sen(lpath+L"senses.dat");
  // create sense disambiguator
  freeling::ukb wsd(lpath+L"ukb.dat");
  // create dependency parser
  freeling::dep_treeler parser(lpath+L"dep_treeler/dependences.dat");

  // get all input text in a single string 
  wstring text=L"";
  wstring line;
  while (getline(wcin,line))
     text = text + line + L"\n";

  // tokenize input line into a list of words
  list<freeling::word> lw = tk.tokenize(text);
  // accumulate list of words in splitter buffer, returning a list of sentences.
  list<freeling::sentence> ls = sp.split(lw);
  // perform and output morphosyntactic analysis and disambiguation
  morfo.analyze(ls);
  tagger.analyze(ls);
  // annotate and disambiguate senses
  sen.analyze(ls);
  wsd.analyze(ls);
  // parse sentences
  parser.analyze(ls);

  // do whatever is needed with processed sentences
  ProcessSentences(ls);
}