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#ifndef MOZC_CONVERTER_SEGMENTER_H_
#define MOZC_CONVERTER_SEGMENTER_H_

#include <cstddef>
#include <cstdint>
#include <memory>

#include "converter/node.h"
#include "data_manager/data_manager_interface.h"

namespace mozc {

class Segmenter {
 public:
  static std::unique_ptr<Segmenter> CreateFromDataManager(
      const DataManagerInterface &data_manager);

  // This class does not take the ownership of pointer parameters.
  Segmenter(size_t l_num_elements, size_t r_num_elements,
            const uint16_t *l_table, const uint16_t *r_table,
            size_t bitarray_num_bytes, const char *bitarray_data,
            const uint16_t *boundary_data);
  Segmenter(const Segmenter &) = delete;
  Segmenter &operator=(const Segmenter &) = delete;

  bool IsBoundary(const Node &lnode, const Node &rnode,
                  bool is_single_segment) const;
  bool IsBoundary(uint16_t rid, uint16_t lid) const;
  int32_t GetPrefixPenalty(uint16_t lid) const;
  int32_t GetSuffixPenalty(uint16_t rid) const;

 private:
  const size_t l_num_elements_;
  const size_t r_num_elements_;
  const uint16_t *l_table_;
  const uint16_t *r_table_;
  const size_t bitarray_num_bytes_;
  const char *bitarray_data_;
  const uint16_t *boundary_data_;
};

}  // namespace mozc

#endif  // MOZC_CONVERTER_SEGMENTER_H_
