/*
 * This file is a part of CMSLU -- Content Management System like Unix
 * and is not publicly distributed
 * 
 * Copyright (c) 2008-2009, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include "content.h"
#include "../core/request.h"
#include "../core/error.h"
#include "../core/db.h"
#include "../core/data.h"
#include "../core/notify.h"
#include "../core/misc.h"



bool Content::FunEmacsCheckAccess()
{
	if( !request.is_item )
	{
		// adding a new item
		if( !request.CanUseEmacs(*request.dir_table.back()) )
		{
			request.status = Error::permission_denied;
			return false;
		}
	}
	else // editing an existing item	
	if( !request.CanUseEmacs(request.item) )
	{
		request.status = Error::permission_denied;
		return false;
	}

return true;
}


void Content::PostFunEmacsAdd()
{
	request.session->done        = Done::added_item;
	request.session->done_status = db.AddItem(request.item);
	
	if( request.session->done_status == Error::ok )
	{
		log << log2 << "Content: added a new item" << logend;
		request.notify_code |= CMSLU_NOTIFY_ITEM_ADD;
	}
}



void Content::PostFunEmacsEdit(bool with_url)
{
	request.item.SetDateModifyToNow();
	request.session->done        = Done::edited_item;
	request.session->done_status = db.EditItemById(request.item, with_url);
	
	if( request.session->done_status == Error::ok )
	{
		TemplatesFunctions::pattern_cacher.UpdatePattern(request.item);
		log << log2 << "Content: modified an item" << logend;

		request.notify_code |= CMSLU_NOTIFY_ITEM_EDIT;
	}
}


bool Content::PostEmacsCheckAbuse(bool adding)
{
	if( !CheckRebus() )
	{
		request.status = Error::incorrect_rebus;
		request.session->done = (adding)? Done::added_item : Done::edited_item;
		request.session->done_status = Error::incorrect_rebus;

		return false;
	}

	// !! is tested in createthread once
	CheckGetPostTimes();

	if( request.session->spam_score > 0 )
	{
		request.status = Error::spam;
		request.session->done = (adding)? Done::added_item : Done::edited_item;
		request.session->done_status = Error::spam;

		log << log1 << "Content: ignoring due to suspected spamming" << logend;
		return false;
	}

return true;
}



void Content::PostFunEmacsModifyMountPoint(bool adding)
{
	if( data.mounts.pmount->type == Mount::thread )
	{
		if( adding )
			db.EditThreadAddItem(request.dir_table.back()->id, request.item.id);

		RedirectToLastDir();
	}
	else
	if( data.mounts.pmount->type == Mount::ticket )
	{
		RedirectToLastDir();
	}
	else
	{
		// Mount::cms
		RedirectTo(request.item);
	}
}



void Content::PostFunEmacs()
{
	if( !FunEmacsCheckAccess() )
		return;

	bool adding        = !request.is_item;
	bool edit_with_url = ReadItem(request.item, Item::file);
	request.session->done_status = Error::ok;

	if( !PostEmacsCheckAbuse(adding) )
		return;


	if( adding )
	{
		request.is_item          = true;
		request.item.privileges  = 0644; // !! tymczasowo, bedzie uzyte umask
		PostFunEmacsAdd();
	}
	else
	{
		PostFunEmacsEdit(edit_with_url);
	}


	if( request.session->done_status == Error::ok )
	{
		PostFunEmacsModifyMountPoint(adding);
		CheckSpecialFile();
	}
	else
	{
		log << log1 << "Content: PostFunEmacs: Error: "
			<< request.session->done_status << logend;
	}
}




void Content::FunEmacs()
{
	FunEmacsCheckAccess();
}