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#ifndef MOZC_DICTIONARY_USER_DICTIONARY_STUB_H_
#define MOZC_DICTIONARY_USER_DICTIONARY_STUB_H_

#include "base/string_piece.h"
#include "dictionary/dictionary_interface.h"

namespace mozc {

class UserDictionaryStub : public DictionaryInterface {
 public:
  virtual bool HasKey(StringPiece key) const {
    return false;
  }
  virtual bool HasValue(StringPiece value) const {
    return false;
  }

  virtual void LookupPredictive(
      StringPiece key, bool use_kana_modifier_insensitive_lookup,
      Callback *callback) const {}

  virtual void LookupPrefix(
      StringPiece key, bool use_kana_modifier_insensitive_lookup,
      Callback *callback) const {}

  virtual void LookupExact(StringPiece key, Callback *callback) const {}

  virtual void LookupReverse(StringPiece str, Callback *callback) const {}

  virtual bool LookupComment(StringPiece key, StringPiece value,
                             string *comment) const {
    if (key == "comment" || value == "comment") {
      comment->assign("UserDictionaryStub");
      return true;
    }
    return false;
  }
};

}  // namespace mozc

#endif  // MOZC_DICTIONARY_USER_DICTIONARY_STUB_H_