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#ifndef FSROWS_H
#define FSROWS_H

#include <boost/intrusive_ptr.hpp>
#include <boost/filesystem/path.hpp>
#include <sys/stat.h>
#include "variables.h"
#include "rowSet.h"
#include "scriptStorage.h"
#include "scriptLoader.h"

class CommonObjects;

/// Project2 component to create a row set based on files and directories on the local filesystem
class FsRows : public RowSet {
	public:
		class SearchState;
		class SpecBase : public virtual IntrusivePtrBase {
			public:
				virtual bool recurse(const SearchState * fs, ExecContext *) const;
				virtual bool matches(const SearchState * fs, ExecContext *) const;
			protected:
				const boost::filesystem::path & curPath(const SearchState * fs) const;
				unsigned int depth(const SearchState * fs) const;
				const struct stat & curStat(const SearchState * fs) const;
		};
		typedef boost::intrusive_ptr<SpecBase> SpecBasePtr;
		template <class X>
		class SpecBaseLoaderX : public GenLoader<SpecBase, std::string, ScriptNodePtr> {
			public:
				virtual SpecBase * createWith(const Glib::ustring &) const = 0;
				template <class T>
				class For : public SpecBaseLoaderX<X> {
					public:
						SpecBase * create(const ScriptNodePtr & v) const {
							return new T(v);
						}
						SpecBase * createWith(const Glib::ustring & v) const {
							return new T(v);
						}
				};
		};
		typedef SpecBaseLoaderX<void> SpecBaseLoader;
		typedef ANONSTORAGEOF(SpecBase) SpecBases;
		typedef std::list<Glib::ustring> SpecSpec;
		typedef boost::filesystem::path Path;

		FsRows(ScriptNodePtr p);
		~FsRows();

		const Variable root;
		const Variable spec;
		const Variable ignoreErrors;

		void execute(const Glib::ustring &, const RowProcessorCallback &, ExecContext *) const;
		class SearchState : public RowState {
			public:
				SearchState(const boost::filesystem::path & r);

				virtual RowAttribute resolveAttr(const Glib::ustring & attrName) const;
				virtual void foreachAttr(const AttrAction & action) const;
				virtual const Columns & getColumns() const;

				VariableType fileRelPath() const;
				VariableType fileSize() const;
				VariableType fileModDate() const;
				VariableType fileUser() const;
				VariableType fileGroup() const;
				VariableType fileMode() const;
				VariableType filePerms() const;
				VariableType fileType() const;

				static const Columns col;
				SpecBases specs;
				const boost::filesystem::path fsRoot;
				boost::filesystem::path curPath;
				Glib::ustring curPathStr;
				unsigned int depth;
				struct stat curStat;
		};
	protected:
		void execute(SearchState &, const Path & dir, const RowProcessorCallback &, ExecContext *) const;
		friend class SpecBase;
		SpecBases specs;
};

#endif