/*
 * Copyright (C) 2001-2008 Jacek Sieka, arnetheduck on gmail point com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#if !defined(DIRECTORY_LISTING_H)
#define DIRECTORY_LISTING_H

#include "User.h"
#include "FastAlloc.h"

#include "MerkleTree.h"
#include "SimpleXML.h"
#include "Streams.h"

namespace dcpp {

class ListLoader;

class DirectoryListing
{
public:
	class Directory;

	class File : public FastAlloc<File> {
	public:
		typedef File* Ptr;
		struct FileSort {
			bool operator()(const Ptr& a, const Ptr& b) const {
				return Util::stricmp(a->getName().c_str(), b->getName().c_str()) < 0;
			}
		};
		typedef vector<Ptr> List;
		typedef List::iterator Iter;

		File(Directory* aDir, const string& aName, int64_t aSize, const string& aTTH) throw() :
			name(aName), size(aSize), parent(aDir), tthRoot(aTTH), adls(false)
		{
		}

		File(const File& rhs, bool _adls = false) : name(rhs.name), size(rhs.size), parent(rhs.parent), tthRoot(rhs.tthRoot), adls(_adls)
		{
		}

		File& operator=(const File& rhs) {
			name = rhs.name; size = rhs.size; parent = rhs.parent; tthRoot = rhs.tthRoot;
			return *this;
		}

		~File() { }

		GETSET(string, name, Name);
		GETSET(int64_t, size, Size);
		GETSET(Directory*, parent, Parent);
		GETSET(TTHValue, tthRoot, TTH);
		GETSET(bool, adls, Adls);
	};

	class Directory : public FastAlloc<Directory> {
	public:
		typedef Directory* Ptr;
		struct DirSort {
			bool operator()(const Ptr& a, const Ptr& b) const {
				return Util::stricmp(a->getName().c_str(), b->getName().c_str()) < 0;
			}
		};
		typedef vector<Ptr> List;
		typedef List::iterator Iter;

		typedef unordered_set<TTHValue> TTHSet;

		List directories;
		File::List files;

		Directory(Directory* aParent, const string& aName, bool _adls, bool aComplete)
			: name(aName), parent(aParent), adls(_adls), complete(aComplete) { }

		virtual ~Directory() {
			for_each(directories.begin(), directories.end(), DeleteFunction());
			for_each(files.begin(), files.end(), DeleteFunction());
		}

		size_t getTotalFileCount(bool adls = false);
		int64_t getTotalSize(bool adls = false);
		void filterList(DirectoryListing& dirList);
		void filterList(TTHSet& l);
		void getHashList(TTHSet& l);

		size_t getFileCount() { return files.size(); }

		int64_t getSize() {
			int64_t x = 0;
			for(File::Iter i = files.begin(); i != files.end(); ++i) {
				x+=(*i)->getSize();
			}
			return x;
		}

		GETSET(string, name, Name);
		GETSET(Directory*, parent, Parent);
		GETSET(bool, adls, Adls);
		GETSET(bool, complete, Complete);

	private:
		Directory(const Directory&);
		Directory& operator=(const Directory&);
	};

	class AdlDirectory : public Directory {
	public:
		AdlDirectory(const string& aFullPath, Directory* aParent, const string& aName) : Directory(aParent, aName, true, true), fullPath(aFullPath) { }

		GETSET(string, fullPath, FullPath);
	};

	DirectoryListing(const UserPtr& aUser) : user(aUser), root(new Directory(NULL, Util::emptyString, false, false)) {
	}

	~DirectoryListing() {
		delete root;
	}

	void loadFile(const string& name) throw(Exception);

	string loadXML(const string& xml, bool updating);

	void download(const string& aDir, const string& aTarget, bool highPrio);
	void download(Directory* aDir, const string& aTarget, bool highPrio);
	void download(File* aFile, const string& aTarget, bool view, bool highPrio);

	string getPath(const Directory* d) const;
	string getPath(const File* f) const { return getPath(f->getParent()); }

	/** returns the local path to the file when browsing own file list */
	string getLocalPath(const File* f) const;

	int64_t getTotalSize(bool adls = false) { return root->getTotalSize(adls); }
	size_t getTotalFileCount(bool adls = false) { return root->getTotalFileCount(adls); }

	const Directory* getRoot() const { return root; }
	Directory* getRoot() { return root; }

	static UserPtr getUserFromFilename(const string& fileName);

	GETSET(UserPtr, user, User);

private:
	friend class ListLoader;

	DirectoryListing(const DirectoryListing&);
	DirectoryListing& operator=(const DirectoryListing&);

	Directory* root;

	Directory* find(const string& aName, Directory* current);

};

inline bool operator==(DirectoryListing::Directory::Ptr a, const string& b) { return Util::stricmp(a->getName(), b) == 0; }
inline bool operator==(DirectoryListing::File::Ptr a, const string& b) { return Util::stricmp(a->getName(), b) == 0; }

} // namespace dcpp

#endif // !defined(DIRECTORY_LISTING_H)
