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




void Content::PrepareUrl(Item & item)
{
	CorrectUrl(item);
	
	if( data.functions.GetFunction(item.url) )
	{
		// the name provided by an user is the same as a name of a function
		// we add one underscore character at the beginning
		
		// names of functions should not begin with an underscore '_'
		// and we can simply add one '_' at the beginning
		// and the name will be unique
		item.url.insert(item.url.begin(), '_');
	}
}



void Content::PostFunEmacsAdd()
{
	request.session->done = Done::added_item;
	
	request.is_item = true;
	
	request.item.user_id    = request.session->puser ? request.session->puser->id : -1;
	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;
	
	if( !request.HasWriteAccess(*request.dir_table.back() ) )
		throw Error(Error::permision_denied);

	request.session->done_status = db.AddItem(request.item);
}



void Content::PostFunEmacsEdit(bool with_url)
{
	request.session->done = Done::edited_item;
	
	if( !request.HasWriteAccess(request.item) )
		throw Error(Error::permision_denied);
		
	request.session->done_status = db.EditItemById(request.item, with_url);
}



void Content::PostFunEmacs()
{
	try
	{
		// these old values are ignored (if exists)
		request.item.url        = request.PostVar("url");
		request.item.subject    = request.PostVar("subject");
		request.item.content    = request.PostVar("content");

		bool with_url = false;
		
		if( !request.is_item || request.PostVar("old_url") != request.item.url )
			with_url = true;

		PrepareUrl(request.item);

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



	if( request.session->done_status == Error::ok )
	{
		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.HasReadWriteAccess(*request.dir_table.back()) )
			request.status = Error::permision_denied;

		return;
	}

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