/*
 * This file is a part of Winix
 * and is not publicly distributed
 * 
 * Copyright (c) 2008-2010, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include "templates.h"
#include "core/request.h"
#include "core/misc.h"
#include "functions/functions.h"



namespace TemplatesFunctions
{


static std::vector<long> priv_user_table;
static size_t priv_user_index;
static size_t priv_user_reqid = 0;



void priv_user_tab_init(Item & item)
{
	priv_user_reqid = request->id;
	priv_user_table.clear();	
	
	if( !request->session->puser )
	{
		// not logged
		priv_user_table.push_back(item.user_id);
	}	
	else	
	if( request->session->puser->super_user )
	{
		// super user is allowed to change to any user
		for(size_t i=0 ; i<system->users.Size() ; ++i)
			priv_user_table.push_back( system->users[i].id );
		
		// as well to nobody (-1)
		priv_user_table.push_back(-1);
	}
	else	
	{
		// others
		priv_user_table.push_back(item.user_id);
	}
}


void priv_user_tab_init()
{
	if( request->is_item )
		priv_user_tab_init(request->item);
	else
		priv_user_tab_init(*request->dir_tab.back());
}


void priv_user_tab(Info & i)
{
	if( priv_user_reqid != request->id )
		priv_user_tab_init();
	
	priv_user_index = i.iter;
	i.res = priv_user_index < priv_user_table.size();
}




void priv_user_tab_name(Info & i)
{
	if( priv_user_index < priv_user_table.size() )
	{
		long uid = priv_user_table[priv_user_index];
		
		if( uid != -1 )
		{
			User * puser = system->users.GetUser( uid );
			
			if( puser )
				HtmlEscape(i.out, puser->name);
			else
				i.out << "user_id: " << uid;
		}
		else
		{
			HtmlEscape(i.out, config->priv_no_user);
		}
	}
}



void priv_user_tab_isdefault(Info & i)
{
	if( priv_user_index < priv_user_table.size() )
	{
		long uid = priv_user_table[priv_user_index];
		
		if( request->is_item )
		{
			if( uid == request->item.user_id )
				i.res = true;
		}
		else
		{
			if( uid == request->dir_tab.back()->user_id )
				i.res = true;
		}
	}
}








static std::vector<long> priv_group_table;
static size_t priv_group_index;
static size_t priv_group_reqid = 0;



void priv_group_tab_init(Item & item)
{
	priv_group_reqid = request->id;
	priv_group_table.clear();	
	
	if( !request->session->puser )
	{
		// not logged
		priv_group_table.push_back(item.group_id);
	}	
	else	
	if( request->session->puser->super_user )
	{
		// super user is allowed to change to any group	
		for(size_t i=0 ; i<system->groups.Size() ; ++i)
			priv_group_table.push_back( system->groups[i].id );
		
		// as well to nogroup (-1)
		priv_group_table.push_back(-1);
	}
	else	
	if( request->session->puser->id == item.user_id )
	{
		bool was_current_group = false;
		// owner of the item -- is allowed to change only to a group in which he belongs to
		for(size_t i=0 ; i<request->session->puser->groups.size() ; ++i)
		{
			priv_group_table.push_back( request->session->puser->groups[i] );
			
			if( item.group_id == request->session->puser->groups[i] )
				was_current_group = true;
		}
		
		// we're showing the item.group_id if it's different
		if( !was_current_group )
			priv_group_table.push_back(item.group_id);
		
		// switching to -1 is allowed too
		priv_group_table.push_back(-1);
	}
	else
	{
		// not the owner and not a super user -- the same as not logged
		priv_group_table.push_back(item.group_id);
	}
}


void priv_group_tab_init()
{
	if( request->is_item )
		priv_group_tab_init(request->item);
	else
		priv_group_tab_init(*request->dir_tab.back());
}


void priv_group_tab(Info & i)
{
	if( priv_group_reqid != request->id )
		priv_group_tab_init();
	
	priv_group_index = i.iter;
	i.res = priv_group_index < priv_group_table.size();
}




void priv_group_tab_name(Info & i)
{
	if( priv_group_index < priv_group_table.size() )
	{
		long gid = priv_group_table[priv_group_index];
		
		if( gid != -1 )
		{
			Group * pgroup = system->groups.GetGroup( gid );
			
			if( pgroup )
				HtmlEscape(i.out, pgroup->name);
			else
				i.out << "group_id: " << gid;
		}
		else
		{
			HtmlEscape(i.out, config->priv_no_group);
		}
	}
}



void priv_group_tab_isdefault(Info & i)
{
	if( priv_group_index < priv_group_table.size() )
	{
		long gid = priv_group_table[priv_group_index];
		
		if( request->is_item )
		{
			if( gid == request->item.group_id )
				i.res = true;
		}
		else
		{
			if( gid == request->dir_tab.back()->group_id )
				i.res = true;
		}
	}
}


void priv_privileges(Info & i)
{
	if( request->is_item )
		i.out << std::setbase(8) << request->item.privileges << std::setbase(10);
	else
		i.out << std::setbase(8) << request->dir_tab.back()->privileges << std::setbase(10);
}


void priv_privileges_for_files(Info & i)
{
	//!! bedzie uzyte umask
	i.out << std::setbase(8) << (int)0644 << std::setbase(10);
}


void priv_privileges_for_dirs(Info & i)
{
	//!! bedzie uzyte umask
	i.out << std::setbase(8) << (int)0755 << std::setbase(10);
}


void priv_show_form_chown(Info & i)
{
	i.res = (request->function->fun.url == "priv" || request->function->fun.url == "chown");
}


void priv_show_form_chmod(Info & i)
{
	i.res = (request->function->fun.url == "priv" || request->function->fun.url == "chmod");
}




} // namespace TemplatesFunctions