/*
 * This file is a part of Winix
 * and is not publicly distributed
 * 
 * Copyright (c) 2008-2010, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#ifndef headerfilecmslucoredb
#define headerfilecmslucoredb


#include <string>
#include <vector>
#include <map>
#include <sstream>
#include <libpq-fe.h>
#include <cstdio>
#include <ctime>
#include <cstring>

#include "item.h"
#include "user.h"
#include "group.h"
#include "thread.h"
#include "error.h"
#include "dircontainer.h"
#include "ugcontainer.h"
#include "ticket.h"


class Db
{
public:

	Db(bool close_at_end_ = true);
	~Db();

	// !! przerobic tak aby GetItem zwracalo wszystkie pozycja
	// !! GetFile tylko dla plikow
	// !! GetDir tylko dla katalogow
	// !! GetFile i GetDir beda uzywac GetItem
	
	void Init(const std::string & database, const std::string & user, const std::string & pass);
	bool CheckUser(std::string & login, std::string & password, long & user_id);
	Error AddUser(User & user, const std::string & password);

	Error AddItem(Item & item);
	Error EditItemById(Item & item, bool with_url = true);
	Error EditItemByUrl(Item & item, bool with_url = true);
	void CheckAllUrlSubject();


	struct ItemQuery
	{
		// id is selected always
		bool sel_parent_id;		// parent_id
		bool sel_user_id;		// user_id, modification_user_id
		bool sel_group_id;		// group_id
		bool sel_guest_name;	// guest_name
		bool sel_privileges;	// privileges
		bool sel_date;			// date_creation, date_modification
		bool sel_subject;		// subject
		bool sel_content;		// content, content_type, (content_id)
		bool sel_url;			// url
		bool sel_type;			// type (dir, file, none)
		bool sel_default_item;	// default_item
		bool sel_auth;			// auth, auth_path

		bool where_id;			// 
		bool where_parent_id;	//
		bool where_type;
		bool where_auth;

		long id;				// if where_id is true
		long parent_id;			// if where_parent_id is true
		Item::Type type;
		Item::Auth auth;
		bool auth_equal;		// if true means auth should be equal

		bool sort_asc;

		
		void SetAllSel(bool sel)
		{
			sel_parent_id	= sel;
			sel_user_id		= sel;
			sel_group_id	= sel;
			sel_guest_name	= sel;
			sel_privileges	= sel;
			sel_date		= sel;
			sel_subject		= sel;
			sel_content		= sel;
			sel_url			= sel;
			sel_type		= sel;
			sel_default_item= sel;
			sel_auth		= sel;
		}

		void SetAllWhere(bool where_)
		{
			where_id		= where_;
			where_parent_id = where_;
			where_type		= where_;
			where_auth		= where_;
		}

		void SetAll(bool sel, bool where_)
		{
			SetAllSel(sel);
			SetAllWhere(where_);
		}

		void WhereId(long id_)					{ where_id = true;			id = id_; }
		void WhereParentId(long parent_id_)		{ where_parent_id = true;	parent_id = parent_id_; }
		void WhereType(Item::Type type_)		{ where_type = true;		type = type_; }
		void WhereAuth(Item::Auth st,
						bool equal = true)		{ where_auth = true;		auth = st;		auth_equal = equal; }

		ItemQuery()
		{
			sort_asc   = true;
			auth_equal = true;

			SetAll(true, false);

			id			= -1;
			parent_id	= -1;
			type		= Item::none;
			auth		= Item::auth_none;
		}
	};


	void GetItems(std::vector<Item> & item_tab, const ItemQuery & item_query);
	void GetItems(std::vector<long> & item_tab, const ItemQuery & item_query);


	// !! pobiera tylko jeden item (cos wymyslec innego z nazwa albo argumentem)
	void GetItem(std::vector<Item> & item_tab, long id);


	bool GetPriv(Item & item, long id);
	Error EditPrivById(Item & item, long id);
	Error EditParentUrlById(Item & item, long id);
	Error EditAuthById(Item & item, long id);
	Error DelDirById(long id);

	Error EditSubjectById(Item & item, long id);


	bool DelItem(const Item & item);
	void GetDirs(DirContainer & dir_tab);
	void GetUsers(UGContainer<User> & user_tab);
	void GetGroups(UGContainer<Group> & group_tab);

	// !! nowy interfejs
	long Size(long parent_id, Item::Type type = Item::none);

	Error GetItemById(long item_id, Item & item);
	Error GetItem(long parent_id, const std::string & url, Item & item);
	Error EditDefaultItem(long id, long new_default_item);
	
	long GetItemId(long parent_id, const std::string & url, Item::Type type);
	long GetFileId(long parent_id, const std::string & url);
	long GetDirId(long parent_id, const std::string & url);

	static tm ConvertTime(const char * str);
	static const char * ConvertTime(const tm & t);

	PGconn * GetPGconn();

	virtual void Connect();


	Error AddThread(Thread & thread);
	Error GetThreadByDirId(long dir_id, Thread & thread);
	Error GetThreads(long parent_id, std::vector<Thread> & thread_tab);
	Error EditThreadAddItem(long dir_id, long item_id);
	Error EditThreadRemoveItem(long dir_id);
	Error RemoveThread(long dir_id);
	

	Error GetTicketByDirId(long dir_id, Ticket & ticket);
	Error GetTickets(long parent_id, std::vector<Ticket> & ticket_tab);
	//bool  IsTicket(long dir_id);
	Error AddTicket(Ticket & ticket);
	Error EditTicketById(Ticket & ticket);
	Error EditTicketRemoveItem(long item_id);
	Error RemoveTicket(long dir_id);

protected:

	PGconn * pg_conn;
	std::string db_database, db_user, db_pass;
	bool close_at_end;
	
	void SetDbParameters();
	
	void Close();
	
	void AssertConnection();
	std::string Escape(const std::string & s);
	std::string Escape(const char * s);
	PGresult * AssertQuery(const std::string & q);
	void AssertResultStatus(PGresult * r, ExecStatusType t);
	static int AssertColumn(PGresult * r, const char * column_name);
	static const char * AssertValue(PGresult * r, int row, int col);
	void ClearResult(PGresult * r);
	long AssertCurrval(const char * table);
	bool AddItemCreateUrlSubject(Item & item);
	
	Error AddItemIntoContent(Item & item);
	Error AddItemIntoItem(Item & item);
	
	Error EditItemInItem(Item & item, bool with_url);
	Error EditItemInContent(Item & item);
	Error EditItemGetId(Item & item);
	Error EditItemGetContentId(Item & item);
	
	void CheckAllUrlSubjectModifyItem(Item & item);
	
	PGresult * GetItemsQuery(const ItemQuery & iq, bool skip_other_sel = false);

	bool  DelItemDelItem(const Item & item);
	void  DelItemDelContent(const Item & item);
	Error DelItemCountContents(const Item & item, long & contents);
	
	
	struct ItemColumns
	{
		int id, user_id, group_id, privileges, date_creation, date_modification, url, type, parent_id,
			content_id, default_item, subject, content, content_type, guest_name, auth, auth_path, modification_user_id;
	 	
		void SetColumns(PGresult * r);
		void SetItem(PGresult * r, long row, Item & item);
	};
	

	struct TicketColumns
	{
		int id, dir_id, parent_id, type, status, priority, category, expected, progress, item_id;

		void SetColumns(PGresult * r);
		void SetTicket(PGresult * r, long row, Ticket & ticket);
	};

}; // class Db





#endif