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// Defines codec for dictionary file

#ifndef MOZC_DICTIONARY_FILE_CODEC_H_
#define MOZC_DICTIONARY_FILE_CODEC_H_

#include <ostream>
#include <string>
#include <vector>

#include "base/port.h"
#include "dictionary/file/codec_interface.h"
#include "dictionary/file/section.h"

namespace mozc {
namespace dictionary {

class DictionaryFileCodec : public DictionaryFileCodecInterface {
 public:
  DictionaryFileCodec();
  ~DictionaryFileCodec() override;

  void WriteSections(const std::vector<DictionaryFileSection> &sections,
                     std::ostream *ofs) const override;
  bool ReadSections(
      const char *image, int length,
      std::vector<DictionaryFileSection> *sections) const override;
  string GetSectionName(const string &name) const override;

 private:
  void WriteHeader(std::ostream *ofs) const;
  void WriteSection(const DictionaryFileSection &section,
                    std::ostream *ofs) const;

  static void Pad4(int length, std::ostream *ofs);

  // Seed value for name string finger print
  // Made it mutable for reading sections.
  mutable int seed_;
  // Magic value for simple file validation
  const int filemagic_;

  DISALLOW_COPY_AND_ASSIGN(DictionaryFileCodec);
};

}  // namespace dictionary
}  // namespace mozc

#endif  // MOZC_DICTIONARY_FILE_CODEC_H_