/* -----------------------------------------------------------------------------
	GSFramework
	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
----------------------------------------------------------------------------- */


#ifndef	__RESOURCEEXPLORER__
#define	__RESOURCEEXPLORER__


		#include "nstring/nstring.h"
		#include "container/nlist.h"
		#include "memory/nauto_ptr.h"
		#include "metafile/nml.h"


namespace GS {
	namespace Resource {

//------------------------------------------------------------------------------
struct	DependencyRule
{
	const char *path;
	const char *type;
};

struct	ExplorerRule
{
	const char *type, *root;
	DependencyRule *rules;
};
//------------------------------------------------------------------------------

//
struct	Explorer
{
struct	Dependency
{
		bool		missing;

virtual	const char	*GetName() const = 0;
virtual	void		SetName(const char *) = 0;

		Dependency() : missing(true) {}
virtual	~Dependency() {}
};
struct	DependencyTag : public Dependency
{
		NML::Tag	*tag;

virtual	const char	*GetName() const;
virtual	void		SetName(const char *);

		DependencyTag(NML::Tag *t) : tag(t) {}
};
struct	Resource
{
		String		name, type;
		AutoPtr <NML::File> file;
		AutoList <Dependency *> dependencies;

		const Dependency *FindDependency(const char *) const;
		bool		HasMissingDependencies() const;

		Resource(const char *n, const char *t) : name(n), type(t) {}
};

private:

		String		project_path, core_path;
		bool		recursive;

		AutoList <Resource *> resources;

		void		ExploreResourceRuleTags(const StringList &, uint pos, NML::Tag *, Resource *, int depth);
		bool		ExploreResourceRule(ExplorerRule &, Resource *, int depth);

public:

		void		Clear();

		const AutoList <Resource *> &GetResources() const { return resources; }
		const Resource *FindResource(const char *) const;

		// Explore dependencies for a given resource.
		Resource	*ExploreResource(const char *name, const char *base_path, const char *core_path, int max_depth = 128);
};

	} // Resource
} // GS


#endif // __RESOURCEEXPLORER__