<?php
// ----------------------------------------------------------------
// $ Revision:  1.0 $
// Creator: Maxime Bourge
// date_:   2013-05-04
// Title:   Order Line Extra
// Free software under GNU GPL
// ----------------------------------------------------------------
define ('SS_ORDERLINEX', 100<<8);

include_once('includes/db_order_lines.inc');

class hooks_order_line_extra extends hooks {
	var $module_name = 'order_line_extra';

	/*
		Install additonal menu options provided by module
	*/
    function install_tabs($app) {
        global $path_to_root;

    }

    function install_options($app) {
        global $path_to_root;
				switch($app->id) {
					case 'orders':
						$app->add_rapp_function(0, _('Order Extra'), 
							$path_to_root.'/modules/order_line_extra/order_lines_view.php', 'SA_SALESTRANSVIEW');
				}
    }

    function install_access()
	{
        $security_sections[SS_ORDERLINEX] =  _("Order Line Extra");
		$security_areas['SA_ORDERLINEX_EDIT'] = array(SS_ORDERLINEX|1, _("Edit lines"));

		return array($security_areas, $security_sections);
	}

    /* This method is called on extension activation for company.   */
    function activate_extension($company, $check_only=true)
    {
        global $db_connections;

        $updates = array(
						'alter_sales_order_details.sql' => array('sales_order_details','required_date'),
						'alter_sales_order_details_2.sql' => array('sales_order_details','expiry_date'),
						'create_denorm_order_details_queue.sql' => array('denorm_order_details_queue'),
						'create_denorm_qoh.sql' => array('denorm_qoh'),
						'create_order_summary_view.sql' => array('order_summary_view'),
        );

				return $this->update_databases($company, $updates, $check_only)
								&& update_queue_quantities()
								&& update_qoh_for_item();;
    }

    function deactivate_extension($company, $check_only=true)
    {
        global $db_connections;

        $updates = array(
            'clean_sales_order_details.sql' => array('ugly_hack') // FIXME: just an ugly hack to clean database on deactivation
        );

        return $this->update_databases($company, $updates, $check_only);
    }

		function get_allowed_quantity($detail_id, $opts) {
			$location = array_shift($opts);
			$date = array_shift($opts);
			$qoh = array_shift($opts);

			$sql = "select quantity_before from ".TB_PREF."denorm_order_details_queue where id = $detail_id";
			$result = db_query($sql);
			$quantity_before = 0;
			if($row=db_fetch($result)) {
				$quantity_before = $row['quantity_before'];
				}

			return max($qoh - $quantity_before, 0);
		}

		function db_postwrite($cart, $trans_type) {
			if(is_a($cart, "Cart")) {

			// It's a cart. Find all the stock_id and update the cache table 
			foreach($cart->line_items as $line_no => $item) {
				$stock_id = $item->stock_id;
				update_queue_quantity_for_item($stock_id);
				update_qoh_for_item($stock_id);
			}
			}

			// update null fields of new entered orders.
			//
		$types = array(ST_SALESORDER, 'order_xtra');
		if(in_array($trans_type, $types)) update_order_detail_defaults();
	
		}


		function db_prevoid($cart, $trans_type) {
		// Simple version, rebuild everything
		$types = array(ST_CUSTCREDIT, ST_CUSTDELIVERY, ST_INVADJUST, ST_PURCHORDER, ST_WORKORDER, ST_MANUISSUE,
				ST_SALESORDER, ST_SALESQUOTE, ST_MANURECEIVE);
		if(in_array($trans_type, $types)) {
			update_queue_quantities();
			update_qoh_for_item();
		}
		}
}
?>