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 /*
     This file is part of the syndication library
     SPDX-FileCopyrightText: 2006 Frank Osterfeld <osterfeld@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef SYNDICATION_RDF_DUBLINCORE_H
 #define SYNDICATION_RDF_DUBLINCORE_H
 
 #include <syndication/rdf/resourcewrapper.h>
 
 #include <QStringList>
 
 #include <ctime>
 
 class QString;
 
 namespace Syndication
 {
 namespace RDF
 {
 class Resource;
 //@cond PRIVATE
 typedef QSharedPointer<Resource> ResourcePtr;
 //@endcond
 
 /**
  * A resource wrapper providing convenient
  * access to Dublin Core metadata.
  *
  * For more information on Dublin Core, see
  * http://dublincore.org/
  */
 class SYNDICATION_EXPORT DublinCore : public ResourceWrapper
 {
 public:
     /**
      * creates a dublin core convenience wrapper for a resource
      *
      * @param resource the resource to wrap
      */
     explicit DublinCore(ResourcePtr resource);
 
     /**
      * virtual destructor
      */
     ~DublinCore() override;
 
     /**
      * A name given to the resource.
      * Typically, a Title will be a name by which the resource is
      * formally known.
      */
     QString title() const;
 
     /**
      * "An entity primarily responsible for making the content of
      * the resource.
      * Examples of a Creator include a person, an organisation,
      * or a service.
      * Typically, the name of a Creator should be used to
      * indicate the entity."
      */
     QString creator() const;
 
     /**
      * like creator(), but returns all dc:creator properties,
      * not only one.
      */
     QStringList creators() const;
 
     /**
      * "A date associated with an event in the life cycle of the resource.
      * Typically, Date will be associated with the creation or
      * availability of the resource.  Recommended best practice
      * for encoding the date value is defined in a profile of
      * ISO 8601 [W3CDTF] and follows the YYYY-MM-DD format."
      */
     time_t date() const;
 
     /**
      * "An account of the content of the resource.
      * Description may include but is not limited to: an abstract,
      * table of contents, reference to a graphical representation
      * of content or a free-text account of the content."
      */
     QString description() const;
 
     /**
      * "The topic of the content of the resource.
      * Typically, a Subject will be expressed as keywords,
      * key phrases or classification codes that describe a topic
      * of the resource.
      * Recommended best practice is to select a value from a
      * controlled vocabulary or formal classification scheme."
      */
     QString subject() const;
 
     /**
      * like subject(), but returns all dc:subject properties,
      * not only one.
      */
     QStringList subjects() const;
 
     /**
      * "An entity responsible for making contributions to the content of the
      * resource.
      * Examples of a Contributor include a person, an organisation, or a
      * service. Typically, the name of a Contributor should be used to
      * indicate the entity."
      * */
     QString contributor() const;
 
     /**
      * like contributor(), but returns all dc:contributor properties,
      * not only one.
      */
     QStringList contributors() const;
 
     /**
      * "Information about rights held in and over the resource.
      * Typically, a Rights element will contain a rights
      * management statement for the resource, or reference
      * a service providing such information. Rights information
      * often encompasses Intellectual Property Rights (IPR),
      * Copyright, and various Property Rights.
      * If the Rights element is absent, no assumptions can be made
      * about the status of these and other rights with respect to
      * the resource."
      */
     QString rights() const;
 
     /**
      * "A language of the intellectual content of the resource.
      * Recommended best practice for the values of the Language
      * element is defined by RFC 1766 [RFC1766] which includes
      * a two-letter Language Code (taken from the ISO 639
      * standard [ISO639]), followed optionally, by a two-letter
      * Country Code (taken from the ISO 3166 standard [ISO3166]).
      * For example, 'en' for English, 'fr' for French, or
      * 'en-uk' for English used in the United Kingdom."
      */
     QString language() const;
 
     /**
      * "The extent or scope of the content of the resource.
      * Coverage will typically include spatial location (a place name
      * or geographic coordinates), temporal period (a period label,
      * date, or date range) or jurisdiction (such as a named
      * administrative entity).
      * Recommended best practice is to select a value from a
      * controlled vocabulary (for example, the Thesaurus of Geographic
      * Names [TGN]) and that, where appropriate, named places or time
      * periods be used in preference to numeric identifiers such as
      * sets of coordinates or date ranges."
      */
     QString coverage() const;
 
     /**
      * "The physical or digital manifestation of the resource.
      * Typically, Format may include the media-type or dimensions of
      * the resource. Format may be used to determine the software,
      * hardware or other equipment needed to display or operate the
      * resource. Examples of dimensions include size and duration.
      * Recommended best practice is to select a value from a
      * controlled vocabulary (for example, the list of Internet Media
      * Types [MIME] defining computer media formats).
      */
     QString format() const;
 
     /**
      * "An unambiguous reference to the resource within a given context.
      * Recommended best practice is to identify the resource by means
      * if a string or number conforming to a formal identification
      * system.
      * Example formal identification systems include the Uniform
      * Resource Identifier (URI) (including the Uniform Resource
      * Locator (URL)), the Digital Object Identifier (DOI) and the
      * International Standard Book Number (ISBN).
      */
     QString identifier() const;
 
     /**
      * "An entity responsible for making the resource available.
      * Examples of a Publisher include a person, an organisation, or a
      * service. Typically, the name of a Publisher should be used to
      * indicate the entity."
      */
     QString publisher() const;
 
     /**
      * "A reference to a related resource.
      * Recommended best practice is to reference the resource by means
      * of a string or number conforming to a formal identification
      * system."
      */
     QString relation() const;
 
     /**
      * A Reference to a resource from which the present resource
      * is derived.
      * The present resource may be derived from the Source resource
      * in whole or in part.  Recommended best practice is to reference
      * the resource by means of a string or number conforming to a
      * formal identification system.
      */
     QString source() const;
 
     /**
      * "The nature or genre of the content of the resource.
      * Type includes terms describing general categories, functions,
      * genres, or aggregation levels for content. Recommended best
      * practice is to select a value from a controlled vocabulary
      * (for example, the working draft list of Dublin Core Types
      * [DCT1]). To describe the physical or digital manifestation
      * of the resource, use the FORMAT element."
      */
     QString type() const;
 
     /**
      * returns a debug string describing the available DC metadata
      * for debugging purposes
      *
      * @return debug string
      */
     QString debugInfo() const;
 };
 
 } // namespace RDF
 } // namespace Syndication
 
 #endif // SYNDICATION_RDF_DUBLINCORE_H