/*
 * 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"




void Content::CheckSpecialFile()
{
	static std::string fstab = "fstab";

	Item * etc = data.dirs.GetEtcDir();

	if( !etc )
		return;

	if( request.item.parent_id != etc->id )
		return;

	if( request.item.url == fstab )
	{
		log << log3 << "Content: reloading mount points" << logend;
		data.mounts.ReadMounts(request.item.content);
	}
}



void Content::PostFunEmacsAdd()
{
	request.session->done = Done::added_item;
	
	request.is_item = true;

	SetUser(request.item);
	
	request.item.group_id   = -1;
	request.item.privileges = 0644; // !! tymczasowo, bedzie uzyte umask
	request.item.parent_id  = request.dir_table.back()->id;
	request.item.type       = Item::file;
	request.item.content_type = 1;// !! tymczasowo formatted text
	
	// dates (creation and modification) is set by request.item.Clear() at the beginning
	
	if( !request.CanUseEmacs(*request.dir_table.back() ) )
		throw Error(Error::permision_denied);

	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.session->done = Done::edited_item;
	
	if( !request.CanUseEmacs(request.item) )
		throw Error(Error::permision_denied);
	
	time_t t = std::time(0);
	request.item.date_modification = *std::localtime( &t );
	
	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;
	}
}


// returning true if the 'url' has to be changed
bool Content::PostFunSetUrlSubject()
{
	bool with_url = false;

	std::string * new_url     = request.PostVar("url");
	std::string * new_subject = request.PostVar("subject");

	if( request.is_item )
	{
		// editing an item
		if( new_url && *new_url != request.item.url )
			with_url = true;
	}
	else
	{
		// adding a new item
		with_url = true;
	}

	if( new_url )
		request.item.url = *new_url;

	if( new_subject )
		request.item.subject = *new_subject;


	if( request.item.subject.empty() )
	{
		request.item.subject = request.dir_table.back()->subject;
		request.item.subject += "_msg_";
		request.item.subject += ToStr(db.Size(request.dir_table.back()->id, Item::file));
	}

	// if request.item.url is empty then it will be set from request.item.subject
	PrepareUrl(request.item);

return with_url;
}



void Content::PostFunEmacs()
{
bool adding = !request.is_item;

	try
	{
		bool with_url = PostFunSetUrlSubject();
		request.PostVar("content", request.item.content);

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

			return;
		}

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

		if( request.session->spam_score > 0 )
		{
			request.status = Error::spam;
			SetUser(request.item);
			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;
		}

		if( adding )
			PostFunEmacsAdd();
		else
			PostFunEmacsEdit(with_url);
			
		CheckSpecialFile();
	}
	catch(const Error & e)
	{
		request.session->done_status = e;
	}



	if( request.session->done_status == Error::ok )
	{
		request.session->item = request.item;
		
		if( data.mounts.CurrentMountType() == Mount::thread )
		{
			if( adding )
				db.EditThreadAddItem(request.dir_table.back()->id, request.item.id);
		
		
//			request.session->item = request.item;
//			request.session->done_timer = 2;
			RedirectTo(*request.dir_table.back());
		}
		else
		{		
			request.session->item = request.item;
			request.session->done_timer = 2;
			RedirectTo(request.item);
		}
	}
	else
	{
		log << log1 << "Content: PostFunEmacs: Error: " << request.session->done_status << logend;
	}
}








void Content::FunEmacs()
{
	if( !request.is_item )
	{
		// adding a new item
		if( !request.CanUseEmacs(*request.dir_table.back()) )
			request.status = Error::permision_denied;

		return;
	}

	// editing an existing item	
	if( !request.CanUseEmacs(request.item) )
	{
		request.status = Error::permision_denied;
		return;
	}
}