<?php
/**********************************************************************
    Copyright (C) FrontAccounting, LLC.
	Released under the terms of the GNU General Public License, GPL, 
	as published by the Free Software Foundation, either version 3 
	of the License, or (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
    See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
***********************************************************************/
//-------------------------------------------------------------------------------------------------------------

function stock_cost_update($stock_id, $material_cost, $labour_cost, $overhead_cost,
	$last_cost, $refline, $memo_)
{
	$mb_flag = get_mb_flag($stock_id);

	$update_no = -1;

    if (is_service($mb_flag))
    {
		$sql = "UPDATE ".TB_PREF."stock_master SET material_cost=".db_escape($material_cost)."
		WHERE stock_id=".db_escape($stock_id);

		db_query($sql,"The cost details for the inventory item could not be updated");

		return $update_no;
    }

	begin_transaction();

	$sql = "UPDATE ".TB_PREF."stock_master SET material_cost=".db_escape($material_cost).", 
		labour_cost=".db_escape($labour_cost).",
		overhead_cost=".db_escape($overhead_cost)."
		WHERE stock_id=".db_escape($stock_id);
	db_query($sql,"The cost details for the inventory item could not be updated");

	$qoh = get_qoh_on_date($stock_id);

   	$date_ = Today();
	if (!is_date_in_fiscalyear($date_))
		$date_ = end_fiscalyear();

	if ($qoh > 0)
	{
		$new_cost = $material_cost + $labour_cost + $overhead_cost;

		$value_of_change = round2($qoh * ($new_cost - $last_cost), user_price_dec());

		if ($value_of_change != 0)
		{
			global $Refs;
			$stock_gl_code = get_stock_gl_code($stock_id);

			$cart = new items_cart(ST_COSTUPDATE);
			$cart->tran_date = $cart->doc_date = $cart->event_date = $date_;
			if (!is_date_in_fiscalyear($cart->tran_date))
				$cart->tran_date = end_fiscalyear();
			$cart->reference = $Refs->get_next(ST_COSTUPDATE, $refline, $cart->tran_date, $date_);
 
			if (empty($memo_))
				$cart->memo_ = sprintf(_("Cost was %s changed to %s x quantity on hand of %s"),
					number_format2($last_cost, 2), number_format2($new_cost), $qoh);
			else
				$cart->memo_ = $memo_;

			$cart->add_gl_item($stock_gl_code["adjustment_account"],
				$stock_gl_code["dimension_id"], $stock_gl_code["dimension2_id"], -$value_of_change);
			$cart->add_gl_item($stock_gl_code["inventory_account"], 0, 0, $value_of_change);

			write_journal_entries($cart);
			change_stock_moves_std_cost($stock_id, $date_, $new_cost - $last_cost);	
		}
   	}

	if ($update_no != -1)
		add_audit_trail(ST_COSTUPDATE, $update_no, $date_);
	commit_transaction();

	return $update_no;
}

//-------------------------------------------------------------------------------------------------------------

function change_stock_moves_std_cost($stock_id, $date, $diff_cost)
{
	$date = date2sql($date);
	$sql = "UPDATE ".TB_PREF."stock_moves SET standard_cost = standard_cost + ".db_escape($diff_cost). " WHERE stock_id = "
			.db_escape($stock_id)." AND tran_date <= '$date' AND qty <> 0 AND standard_cost > 0.001 AND type <> ".ST_LOCTRANSFER;
	db_query($sql,"The stock moves cost details for the inventory item could not be updated");
}