GDriveFileQuery.h++

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#ifndef __libquark_gdrive_GDriveFileQuery_hxx
#define __libquark_gdrive_GDriveFileQuery_hxx

#include <QDateTime>
#include <QList>
#include <QString>
#include <QVariant>

namespace quark {
namespace gdrive {

class GDriveFileQueryBuilder {
  public:

  GDriveFileQueryBuilder();
  ~GDriveFileQueryBuilder();

  GDriveFileQueryBuilder& title();
  GDriveFileQueryBuilder& fullText();
  GDriveFileQueryBuilder& mimeType();
  GDriveFileQueryBuilder& modifiedDate();
  GDriveFileQueryBuilder& lastViewedByMeDate();
  GDriveFileQueryBuilder& trashed();
  GDriveFileQueryBuilder& starred();
  GDriveFileQueryBuilder& hidden();
  GDriveFileQueryBuilder& parents();
  GDriveFileQueryBuilder& owners();
  GDriveFileQueryBuilder& writers();
  GDriveFileQueryBuilder& readers();

  GDriveFileQueryBuilder& containing(const QString &value);
  GDriveFileQueryBuilder& equalTo(const QString &value);
  GDriveFileQueryBuilder& equalTo(bool value);
  GDriveFileQueryBuilder& equalTo(const QDateTime &value);
  GDriveFileQueryBuilder& notEqualTo(const QString &value);
  GDriveFileQueryBuilder& notEqualTo(bool value);
  GDriveFileQueryBuilder& greaterThan(const QDateTime &value);
  GDriveFileQueryBuilder& greaterThanOrEqualTo(const QDateTime &value);
  GDriveFileQueryBuilder& lessThan(const QDateTime &value);
  GDriveFileQueryBuilder& lessThanOrEqualTo(const QDateTime &value);

  GDriveFileQueryBuilder& negated();

  QString build();

  private:

  void flushPredicate();
  QString escapeString(const QString &string) const;
  QString formatDate(const QDateTime &date) const;

  enum Field { FIELD_NONE = 0, FIELD_TITLE, FIELD_FULL_TEXT, FIELD_MIME_TYPE,
               FIELD_MODIFIED_DATE, FIELD_LAST_VIEWED_BY_ME_DATE,
               FIELD_TRASHED, FIELD_STARRED, FIELD_HIDDEN, FIELD_PARENTS,
               FIELD_OWNERS, FIELD_WRITERS, FIELD_READERS };

  enum Operator { OP_NONE = 0, OP_CONTAINS, OP_EQUAL, OP_NOT_EQUAL,
                  OP_LESS_THAN, OP_LESS_THAN_OR_EQUAL,
                  OP_GREATER_THAN, OP_GREATER_THAN_OR_EQUAL, OP_IN };

  struct Predicate
  {
    Predicate(Field field, Operator oper, QVariant value, bool negated)
      : field(field), oper(oper), value(value), negated(negated)
    { }

    Field field;
    Operator oper;
    QVariant value;
    bool negated;
  };

  QList<Predicate> _predicates;
  Field _field;
  Operator _operator;
  QVariant _value;
  bool _negated;
};

} // namespace gdrive
} // namespace quark

#endif // __libquark_gdrive_GDriveFileQuery_hxx