#include "Vocabulary.h"

#pragma once

#define LINE_MAX_LENGTH 10000

class Alignment
{
public:
  typedef unsigned int INDEX;

private:
  char *m_array;
  INDEX *m_sentenceEnd;
  INDEX m_size;
  INDEX m_sentenceCount;
  char m_unaligned[ 256 ]; // here for speed (local to PhraseAlignment)

public:
  ~Alignment();

  void Create( string fileName );
  bool PhraseAlignment( INDEX sentence, char target_length,
                        char source_start, char source_end,
                        char &target_start, char &target_end,
                        char &pre_null, char &post_null );
  void Load( string fileName );
  void Save( string fileName );
  vector<string> Tokenize( const char input[] );

	INDEX GetSentenceStart( INDEX sentence ) {
		if (sentence == 0) return 0;
		return m_sentenceEnd[ sentence-1 ] + 2;
	}
	INDEX GetNumberOfAlignmentPoints( INDEX sentence ) {
		return ( m_sentenceEnd[ sentence ] - GetSentenceStart( sentence ) ) / 2;
	}
	char GetSourceWord( INDEX sentence, INDEX alignment_point ) {
		return m_array[ GetSentenceStart( sentence ) + alignment_point*2 ];
	}
	char GetTargetWord( INDEX sentence, INDEX alignment_point ) {
		return m_array[ GetSentenceStart( sentence ) + alignment_point*2 + 1 ];
	}
};