/*
 * GDevelop Core
 * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
 * reserved. This project is released under the MIT License.
 */
#ifndef OBJECTMETADATA_H
#define OBJECTMETADATA_H
#include <map>
#include <memory>
#include <functional>
#include "GDCore/Extensions/Metadata/ExpressionMetadata.h"
#include "GDCore/Extensions/Metadata/InstructionMetadata.h"
#include "GDCore/Project/Object.h"
#include "GDCore/String.h"
namespace gd {
class InstructionMetadata;
class ExpressionMetadata;
}  // namespace gd

typedef std::function<std::unique_ptr<gd::Object>(gd::String name)> CreateFunPtr;

namespace gd {

/**
 * \brief Contains user-friendly information about an object type, and a
 * function to create a new gd::Object of this type.
 *
 * \ingroup Events
 */
class GD_CORE_API ObjectMetadata {
 public:
  /**
   * \brief Construct an object metadata, using a "blueprint" object that will
   * be copied when a new object is asked.
   */
  ObjectMetadata(const gd::String& extensionNamespace_,
                 const gd::String& name_,
                 const gd::String& fullname_,
                 const gd::String& description_,
                 const gd::String& icon24x24_,
                 std::shared_ptr<gd::Object> blueprintObject_);

  /**
   * \brief Construct an object metadata, with a function that will be called
   * to instanciate a new object.
   */
  ObjectMetadata(const gd::String& extensionNamespace_,
                 const gd::String& name_,
                 const gd::String& fullname_,
                 const gd::String& description_,
                 const gd::String& icon24x24_,
                 CreateFunPtr createFunPtrP);
  ObjectMetadata() : createFunPtr(NULL) {}
  virtual ~ObjectMetadata(){};

  /**
   * \brief Declare a new condition as being part of the extension.
   * \note This method does nothing when used for GD C++ runtime.
   */
  gd::InstructionMetadata& AddCondition(const gd::String& name_,
                                        const gd::String& fullname_,
                                        const gd::String& description_,
                                        const gd::String& sentence_,
                                        const gd::String& group_,
                                        const gd::String& icon_,
                                        const gd::String& smallicon_);

  /**
   * \brief Declare a new action as being part of the extension.
   * \note This method does nothing when used for GD C++ runtime.
   */
  gd::InstructionMetadata& AddAction(const gd::String& name_,
                                     const gd::String& fullname_,
                                     const gd::String& description_,
                                     const gd::String& sentence_,
                                     const gd::String& group_,
                                     const gd::String& icon_,
                                     const gd::String& smallicon_);
  /**
   * \brief Declare a new expression as being part of the extension.
   * \note This method does nothing when used for GD C++ runtime.
   */
  gd::ExpressionMetadata& AddExpression(const gd::String& name_,
                                        const gd::String& fullname_,
                                        const gd::String& description_,
                                        const gd::String& group_,
                                        const gd::String& smallicon_);
  /**
   * \brief Declare a new string expression as being part of the extension.
   * \note This method does nothing when used for GD C++ runtime.
   */
  gd::ExpressionMetadata& AddStrExpression(const gd::String& name_,
                                           const gd::String& fullname_,
                                           const gd::String& description_,
                                           const gd::String& group_,
                                           const gd::String& smallicon_);

  /**
   * \brief Set the name shown to the user.
   * \note This method does nothing when used for GD C++ runtime.
   */
  ObjectMetadata& SetFullName(const gd::String& fullname_);

  /**
   * \brief Set the description shown to the user.
   * \note This method does nothing when used for GD C++ runtime.
   */
  ObjectMetadata& SetDescription(const gd::String& description_);

  /**
   * Get the help path of the object, relative to the documentation root.
   */
  const gd::String &GetHelpPath() const { return helpPath; }

  /**
   * Set the help path of the object, relative to the documentation root.
   * 
   * The object instructions will have this help path set by
   * default, unless you call SetHelpPath on them.
   */
  ObjectMetadata &SetHelpPath(const gd::String &path) {
    helpPath = path;
    return *this;
  }

  const gd::String& GetName() const { return name; }
#if defined(GD_IDE_ONLY)
  const gd::String& GetFullName() const { return fullname; }
  const gd::String& GetHelpUrl() const { return helpUrl; }
  const gd::String& GetDescription() const { return description; }
  const gd::String& GetIconFilename() const { return iconFilename; }
#endif

  /**
   * \brief Set the URL pointing to the help page about this object
   * \note The path to the page must be relative to the wiki url.
   * \deprecated Use SetHelpPath instead
   */
  ObjectMetadata& SetHelpUrl(const gd::String& url);

  /**
   * \brief Erase any existing include file and add the specified include.
   * \note The requirement may vary depending on the platform: Most of the time,
   * the include file contains the declaration of the object.
   */
  ObjectMetadata& SetIncludeFile(const gd::String& includeFile);

  /**
   * \brief Add a file to the already existing include files.
   */
  ObjectMetadata& AddIncludeFile(const gd::String& includeFile);

#if defined(GD_IDE_ONLY)
  std::map<gd::String, gd::InstructionMetadata> conditionsInfos;
  std::map<gd::String, gd::InstructionMetadata> actionsInfos;
  std::map<gd::String, gd::ExpressionMetadata> expressionsInfos;
  std::map<gd::String, gd::ExpressionMetadata> strExpressionsInfos;

  std::vector<gd::String> includeFiles;
  gd::String className;
#endif
  CreateFunPtr createFunPtr;

 private:
  gd::String extensionNamespace;
  gd::String name;
  gd::String helpPath;
#if defined(GD_IDE_ONLY)
  gd::String helpUrl; ///< Deprecated. Use helpPath instead.
  gd::String fullname;
  gd::String description;
  gd::String iconFilename;
#endif
  std::shared_ptr<gd::Object>
      blueprintObject;  ///< The "blueprint" object to be copied when a new
                        ///< object is asked. Can be null in case a creation
                        ///< function is passed.
};

}  // namespace gd
#endif  // OBJECTMETADATA_H