/*
 * This file is a part of Winix
 * and is not publicly distributed
 * 
 * Copyright (c) 2011-2014, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include "meta.h"
#include "core/log.h"


namespace Winix
{


namespace Fun
{

Meta::Meta()
{
	fun.url = L"meta";
	// !! CHECKME what about follow symlinks?
}


bool Meta::HasAccess()
{
	if( cur->request->IsParam(L"a") )
		return cur->session->puser && cur->session->puser->super_user;
	else
		return system->HasWriteAccess(*cur->request->last_item);
}



bool Meta::Parse(const std::wstring & meta_str)
{
	space.Clear();
	conf_parser.SetSpace(space);
	conf_parser.UTF8(config->utf8);
	conf_parser.SplitSingle(true);

return (conf_parser.ParseString(meta_str) == PT::SpaceParser::ok);
}




bool Meta::EditAdminMeta(long item_id, const std::wstring & meta_str, bool use_ses_log)
{
	if( Parse(meta_str) )
	{
		if( db->EditAdminMetaById(space, item_id) == WINIX_ERR_OK )
		{
			return true;
		}
		else
		{
			log << log1 << "Meta: a database problem with changing admin meta information for item id: "
				<< item_id << logend;
		}
	}
	else
	{
		log << log2 << "Meta: Syntax error in line: " << conf_parser.line << logend;

		if( use_ses_log )
			slog << logerror << T("syntax_error_in_line") << ' ' << conf_parser.line << logend;
	}

return false;
}



bool Meta::EditMeta(long item_id, const std::wstring & meta_str, bool use_ses_log)
{
	if( Parse(meta_str) )
	{
		if( db->EditMetaById(space, item_id) == WINIX_ERR_OK )
		{
			return true;
		}
		else
		{
			log << log1 << "Meta: a database problem with changing meta information for item id: "
				<< item_id << logend;
		}
	}
	else
	{
		log << log2 << "Meta: Syntax error in line: " << conf_parser.line << logend;

		if( use_ses_log )
			slog << logerror << T("syntax_error_in_line") << ' ' << conf_parser.line << logend;
	}

return false;
}



void Meta::ChangeAdminMeta()
{
	if( cur->session->puser && cur->session->puser->super_user )
	{
		const std::wstring & meta_str = cur->request->PostVar(L"itemmeta");

		if( EditAdminMeta(cur->request->last_item->id, meta_str, true) )
			system->RedirectToLastItem();
	}
}


void Meta::ChangeMeta()
{
	if( system->HasWriteAccess(*cur->request->last_item) )
	{
		const std::wstring & meta_str = cur->request->PostVar(L"itemmeta");

		if( EditMeta(cur->request->last_item->id, meta_str, true) )
			system->RedirectToLastItem();
	}
}



void Meta::MakePost()
{
	if( cur->request->IsParam(L"a") )
		ChangeAdminMeta();
	else
		ChangeMeta();
}



} // namespace


} // namespace Winix