<?php
/**********************************************************************
***********************************************************************/
include_once($path_to_root . "/includes/banking.inc");
include_once($path_to_root . "/includes/db/inventory_db.inc");
include_once($path_to_root . "/sales/includes/db/sales_order_db.inc");
include_once($path_to_root . "/sales/includes/db/sales_credit_db.inc");
include_once($path_to_root . "/sales/includes/db/sales_invoice_db.inc");
include_once($path_to_root . "/sales/includes/db/sales_delivery_db.inc");
include_once($path_to_root . "/sales/includes/db/sales_types_db.inc");
include_once($path_to_root . "/sales/includes/db/sales_points_db.inc");
include_once($path_to_root . "/sales/includes/db/sales_groups_db.inc");
include_once($path_to_root . "/sales/includes/db/recurrent_invoices_db.inc");
include_once($path_to_root . "/sales/includes/db/custalloc_db.inc");
include_once($path_to_root . "/sales/includes/db/cust_trans_db.inc");
include_once($path_to_root . "/sales/includes/db/cust_trans_details_db.inc");
include_once($path_to_root . "/sales/includes/db/payment_db.inc");
include_once($path_to_root . "/sales/includes/db/branches_db.inc");
include_once($path_to_root . "/sales/includes/db/customers_db.inc");
include_once($path_to_root . "/sales/includes/db/sales_upload_db.inc");

//----------------------------------------------------------------------------------------
// $price in customer's currency
// $quantity is used as is (if it's neg it's neg, if it's pos it's pos)
// $std_cost is in home currency
// $show_or_hide 1 show this item in invoice/credit views, 0 to hide it (used for write-off items)
// $type is 10 (invoice) or 11 (credit)

function add_stock_move_customer($type, $stock_id, $trans_id, $location, 
                                $date_, $reference, $quantity, $std_cost, 
                                $show_or_hide=1, $price=0, $discount_percent=0, 
                                $disp_unit = "", $disp_unit_disp_qty = 0, $disp_unit_convertion_factor = 1,
                                $reference_line_id = 0, $project_id=0)
{
    $error_msg = "The customer stock movement record cannot be inserted";
	return add_stock_move($type, $stock_id, $trans_id, $location, 
                            $date_, $reference, $quantity, $std_cost, 0, 
                            $show_or_hide, $price, $discount_percent, $error_msg, 
                            $disp_unit, $disp_unit_disp_qty, $disp_unit_convertion_factor,
                            0, 0, $reference_line_id, $project_id);
		
}

//----------------------------------------------------------------------------------------
// add a debtor-related gl transaction
// $date_ is display date (non-sql)
// $amount is in CUSTOMER'S currency

function add_gl_trans_customer($type, $type_no, $date_, $account, $dimension, $dimension2,
	$amount, $customer_id, $err_msg="", $rate=0)
{
	if ($err_msg == ""){
		$err_msg = "The customer GL transaction could not be inserted";
    }

	return add_gl_trans($type, $type_no, $date_, $account, $dimension, $dimension2, "", $amount,
		get_customer_currency($customer_id),
		PT_CUSTOMER, $customer_id, $err_msg, $rate);
}

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

function get_calculated_price($stock_id, $add_pct)
{
	$avg = get_standard_cost($stock_id);
	if ($avg == 0){
		return 0;
    }
	return round2($avg * (1 + $add_pct / 100), user_price_dec());
}

function round_to_nearest($price, $round_to)
{
	if ($price == 0){
		return 0;
    }
	$pow = pow(10, user_price_dec());
	if ($pow >= $round_to){
		$mod = ($pow % $round_to);
    }
	else{
		$mod = ($round_to % $pow);
    }
	if ($mod != 0){
		$price = ceil($price) - ($pow - $round_to) / $pow;
    }
	else{	
    	$price = ceil($price * ($pow / $round_to)) / ($pow / $round_to);
    }
    return $price;

}


function get_applicable_sales_price_records($stock_id, $currency, $home_curr, $unit, $date, &$num_rows)
{
    $date = date2sql($date);
    $sql_currency = "SELECT price, curr_abrev, sales_type_id, unit 
            FROM ".TB_PREF."prices
            WHERE stock_id = ".db_escape($stock_id)."
                    AND (curr_abrev = ".db_escape($currency).") 
                    AND (unit = ".db_escape($unit).") 
                    AND effective_date <= ".db_escape($date)." AND expiry_date >= ".db_escape($date)." 
            ORDER BY effective_date DESC LIMIT 1";

	$result_currency = db_query($sql_currency, "There was a problem retrieving the pricing information for the part $stock_id for customer");
	$num_rows = db_num_rows($result_currency);
    if($num_rows > 0){
        return $result_currency;
    }
    
    $sql_home_curr = "SELECT price, curr_abrev, sales_type_id, unit 
            FROM ".TB_PREF."prices
            WHERE stock_id = ".db_escape($stock_id)."
                    AND (curr_abrev = ".db_escape($home_curr).") 
                    AND (unit = ".db_escape($unit).") 
                    AND effective_date <= ".db_escape($date)." AND expiry_date >= ".db_escape($date)." 
            ORDER BY effective_date DESC LIMIT 1";

	$result_home_curr = db_query($sql_home_curr, "There was a problem retrieving the pricing information for the part $stock_id for customer");
	$num_rows = db_num_rows($result_home_curr);

    return $result_home_curr;
    
    
}
function get_price ($stock_id, $currency, $sales_type_id, $factor=null, $date=null, $unit = null)
{
	if ($date == null){
	    $date = new_doc_date();
    }

	if ($factor === null) 
	{
		$myrow = get_sales_type($sales_type_id);
		$factor = $myrow['factor'];
	}

    if ($unit == null){
        $itm = get_item_edit_info($stock_id);
            if (isset($itm['units']) && strlen($itm['units']) > 0) {
                $unit = $itm['units'];
            }
    }
    
	$add_pct = get_company_pref('add_pct');
	$base_id = get_base_sales_type();
    $home_curr = get_company_currency();
	//	AND (sales_type_id = $sales_type_id	OR sales_type_id = $base_id)
//	$sql = "SELECT price, curr_abrev, sales_type_id, unit 
//            FROM ".TB_PREF."prices
//            WHERE stock_id = ".db_escape($stock_id)."
//                    AND (curr_abrev = ".db_escape($currency)." OR curr_abrev = ".db_escape($home_curr).") 
//                    AND effective_date <= ".db_escape($date)." AND expiry_date >= ".db_escape($date)." 
//            ORDER BY effective_date DESC LIMIT 1";
//
//	$result = db_query($sql, "There was a problem retrieving the pricing information for the part $stock_id for customer");
//	$num_rows = db_num_rows($result);
    
    $num_rows = 0;
    $result = get_applicable_sales_price_records($stock_id, $currency, $home_curr, $unit, $date, $num_rows);
            
	$rate = round2(get_exchange_rate_from_home_currency($currency, $date), user_exrate_dec());
	$round_to = get_company_pref('round_to');
	
    $prices = array();
	while($myrow = db_fetch($result)) 
	{
	    $prices[$myrow['sales_type_id']][$myrow['curr_abrev']] = $myrow['price'];
	}
	
    $price = false;
	if (isset($prices[$sales_type_id][$currency])) 
	{
	    $price = $prices[$sales_type_id][$currency];
	}
	elseif (isset($prices[$base_id][$currency])) 
	{
	    $price = $prices[$base_id][$currency] * $factor;
	}
	elseif (isset($prices[$sales_type_id][$home_curr])) 
	{
	    $price = $prices[$sales_type_id][$home_curr] / $rate;
	}
	elseif (isset($prices[$base_id][$home_curr])) 
	{
	    $price = $prices[$base_id][$home_curr] * $factor / $rate;
	}
/*
	if (isset($prices[$sales_type_id][$home_curr])) 
	{
	    $price = $prices[$sales_type_id][$home_curr] / $rate;
	}
	elseif (isset($prices[$base_id][$currency])) 
	{
	    $price = $prices[$base_id][$currency] * $factor;
	}
	elseif (isset($prices[$base_id][$home_curr])) 
	{
	    $price = $prices[$base_id][$home_curr] * $factor / $rate;
	}
*/	
	elseif ($num_rows == 0 && $add_pct != -1)
	{
		$price = get_calculated_price($stock_id, $add_pct);
		if ($currency != $home_curr){
			$price /= $rate;
        }
		if ($factor != 0){
			$price *= $factor;
        }
	}	
    
	if ($price === false){
		return 0;
    }
    
	elseif ($round_to != 1)	{
		return round_to_nearest($price, $round_to);
    }
	else{
		return round2($price, user_price_dec());
    }
}
//----------------------------------------------------------------------------------------
//
//	Get price for given item or kit.
//  When $std==true price is calculated as a sum of all included stock items,
//	otherwise all prices set for kits and items are accepted.
//
function get_kit_price($item_code, $currency, $sales_type_id, $factor=null, 
	$date=null, $std = false, $unit = null)
{
	$kit_price = 0.00;
	if (!$std) {
		$kit_price = get_price( $item_code, $currency, $sales_type_id, 
			$factor, $date, $unit);

		if ($kit_price !== 0) {
			return $kit_price;
		}
	}	
	// no price for kit found, get total value of all items
	$kit = get_item_kit($item_code);
	
	while($item = db_fetch($kit)) {
		if ($item['item_code'] != $item['stock_id']) {
			// foreign/kit code
			$kit_price += $item['quantity'] * get_kit_price( $item['stock_id'], 
				$currency, $sales_type_id, $factor, $date, $std, $unit);

		} else {
			// stock item
			$kit_price += $item['quantity'] * get_price( $item['stock_id'], 
				$currency, $sales_type_id, $factor, $date);
		}
	}
	return $kit_price;
}

//--------------------------------------------------------------------------------------------------
function update_parent_line($doc_type, $line_id, $qty_dispatched, $auto=false)
{
    
    $doc_type = get_parent_type($doc_type);

    $qty_dispatched = (float)$qty_dispatched;

//	echo "update line: $line_id, $doc_type, $qty_dispatched";
    if ($doc_type == 0){
		return false;
    }
    else {
	if ($doc_type==ST_SALESORDER || $doc_type==ST_SALESQUOTE)
	{
            $sql = "UPDATE ".TB_PREF."sales_order_details
                    SET qty_sent = qty_sent + $qty_dispatched";
            if ($auto){
		$sql .= ", quantity = quantity + $qty_dispatched";
            }
            $sql .= " WHERE id=".db_escape($line_id);
	}
	else{
            $sql = "UPDATE ".TB_PREF."debtor_trans_details
                    SET qty_done = qty_done + $qty_dispatched 
                    WHERE id=".db_escape($line_id);
        }
    }
    db_query($sql, "The parent document detail record could not be updated");
    return true;
}


function update_sales_source_document_status($source_trans_type, $source_doc_no, $new_status, &$row_state, $current_user_id)
{
        $info['approval_status'] = $new_status;
        $info['tran_no'] = $source_doc_no;
        $info['row_state'] = $row_state;
        $info['current_user_id'] = $current_user_id;
        $info['tran_type'] = $source_trans_type;
        $info['change_type'] = '';

        update_document_status($info);
        $row_state = $info['row_state'];
        
        if($info['success'] === true ){
            return array("success" => true, "message" => " Documnet has been updated.");
        }
        else{
            return array("success" => false, "message" => $info['message']);
        }
    
}
//--------------------------------------------------------------------------------------------------
// find inventory location for given transaction
//
function get_location(&$cart)
{
	$sql = "SELECT ".TB_PREF."locations.* FROM ".TB_PREF."stock_moves,"
		.TB_PREF."locations".
		" WHERE type=".db_escape($cart->trans_type).
		" AND trans_no=".key($cart->trans_no).
		" AND qty!=0 ".
		" AND ".TB_PREF."locations.loc_code=".TB_PREF."stock_moves.loc_code";
	$result = db_query($sql, 'Retreiving inventory location');


	if (db_num_rows($result)) {
		return db_fetch($result);
	}
	return null;
}
//--------------------------------------------------------------------------------------------------
// Generic read debtor transaction into cart
//
//	$trans_no - array of trans nums; special case trans_no==0 - new doc
//
function read_sales_trans($doc_type, $trans_no, &$cart)
{
	if (!is_array($trans_no) && $trans_no)
			$trans_no = array($trans_no);

	$cart->trans_type = $doc_type;
	if (!$trans_no) { // new document
		$cart->trans_no = $trans_no;
	} 
        else {
                // read header data from first document
                $myrow = get_customer_trans($trans_no[0],$doc_type);
                if (count($trans_no)>1){
                        $cart->trans_no = get_customer_trans_version($doc_type, $trans_no);
                }
                else{
                        $cart->trans_no = array($trans_no[0]=>$myrow["version"]);
                }

                $cart->set_sales_type($myrow["tpe"], $myrow["sales_type"], $myrow["tax_included"],0);

                $cart->set_customer($myrow["debtor_no"], $myrow["DebtorName"],
                        $myrow["curr_code"], $myrow["discount"], $myrow["payment_terms"]);

                $tax_group_id = $myrow["trans_tax_group_id"] > 0 ? $myrow["trans_tax_group_id"] : $myrow["tax_group_id"];
                $cart->set_branch($myrow["branch_code"], $tax_group_id, $myrow["tax_group_name"]);

                $cart->reference = $myrow["reference"];
                $cart->order_no = $myrow["order_"];
                $cart->due_date = sql2date($myrow["due_date"]);
                $cart->document_date = sql2date($myrow["tran_date"]);
                $cart->dimension_id = $myrow['dimension_id']; // added 2.1 Joe Hunt 2008-11-12
                $cart->dimension2_id = $myrow['dimension2_id'];
                $cart->project_id = $myrow['project_id'];
                $cart->Comments = '';
                foreach ($trans_no as $trans ) {
                        $cart->Comments .= get_comments_string($doc_type,$trans);
                }

                // FIX this should be calculated sum() for multiply parents

                $cart->set_delivery($myrow["ship_via"], $myrow["br_name"],
                $myrow["br_address"], $myrow["ov_freight"]);

                $location = 0;
                $myrow = get_location($cart); // find location from movement

                if($myrow!=null) {
                        $cart->set_location($myrow['loc_code'], $myrow['location_name']);
                }

                $cart->set_order_category($doc_type, $trans_no[0]);

                $result = get_customer_trans_details($doc_type,$trans_no);
                if (db_num_rows($result) > 0) {
                    for($line_no=0; $myrow = db_fetch($result); $line_no++){
                            $cart->line_items[$line_no] = new line_details(
                                    $myrow["stock_id"],$myrow["quantity"],
                                    $myrow["unit_price"], $myrow["discount_percent"],
                                    $myrow["qty_done"], $myrow["standard_cost"],
                                    $myrow["StockDescription"],$myrow["id"], $myrow["debtor_trans_no"],
                                    @$myrow["src_id"], $myrow["tran_unit"], $myrow["tran_qty"],
                                    $myrow["conversion_factor"], $myrow["unit_price"] * $myrow["conversion_factor"]);
                
//                $cart->line_items[$line_no]->order_unit = $myrow["order_unit"];
//                $cart->line_items[$line_no]->order_unit_qty = $myrow["order_unit_qty"];
//                $cart->line_items[$line_no]->order_unit_conversion_factor = $myrow["convertion_factor"];
			}
		}
	} // !newdoc

	return true;
}
//----------------------------------------------------------------------------------------

function get_sales_child_lines($trans_type, $trans_no, $lines=true, $child_type=null)
{
        if(isset($child_type) && $child_type = ST_CUSTOMER_PAYMENT_RETURN){
            $ctype = ST_CUSTOMER_PAYMENT_RETURN;
        }
        elseif (!($ctype = get_child_type($trans_type))){
                    return false;
        }
        
	if (!is_array($trans_no)) {
		$trans_no = array($trans_no);
	}

	$par_tbl = $trans_type == ST_SALESORDER ? "sales_order_details" : "debtor_trans_details";
	$par_no = $trans_type == ST_SALESORDER ? "trans.order_no" : "trans.debtor_trans_no";

	foreach($trans_no as $n => $trans) {
		$trans_no[$n] = db_escape($trans);
	}
	$sql = "SELECT child.*
			FROM
				".TB_PREF."debtor_trans_details child
			LEFT JOIN ".TB_PREF."$par_tbl trans 
				ON child.src_id=trans.id AND child.debtor_trans_type=$ctype
			WHERE $par_no IN(". implode(',', array_values($trans_no)).")";

	if (!$lines)
		$sql .= " GROUP BY child.debtor_trans_no";

	$sql .= " ORDER BY child.debtor_trans_no";

	return db_query($sql, "can't retrieve child trans");
}

function get_sales_child_numbers($trans_type, $trans_no,$child_type=null)
{
	$trans = array();
	$res = get_sales_child_lines($trans_type, $trans_no, false, $child_type);
	while ($line = db_fetch($res)) {
		$trans[] = $line['debtor_trans_no'];
	}
	return $trans;
}

function get_sales_parent_lines($trans_type, $trans_no, $lines=true)
{
	$partype = get_parent_type($trans_type);

	if (!$partype)
		return false;

	$par_tbl = $partype == ST_SALESORDER ? "sales_order_details" : "debtor_trans_details";
	$par_no = $partype == ST_SALESORDER ? "parent.order_no" : "parent.debtor_trans_no";
	$sql = "SELECT parent.*
			FROM
				".TB_PREF."$par_tbl parent
			LEFT JOIN ".TB_PREF."debtor_trans_details trans 
				ON trans.src_id=parent.id
			WHERE
				trans.debtor_trans_type=".db_escape($trans_type)
				." AND trans.debtor_trans_no=".db_escape($trans_no);
	if (!$lines)
		$sql .= " GROUP BY $par_no";
	
	$sql .= " ORDER BY $par_no";
	
	return db_query($sql, "can't retrieve child trans");

}

function get_sales_parent_numbers($trans_type, $trans_no)
{
	$trans = array();
	$res = get_sales_parent_lines($trans_type, $trans_no, false);
	while ($line = db_fetch($res)){
		//$trans[] = $line[$trans_type==ST_CUSTDELIVERY ? 'order_no' : 'debtor_trans_no'];
        $trans[] = $line[$trans_type==ST_SALESINVOICE ? 'order_no' : 'debtor_trans_no'];
    }
	return $trans;
}

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

function get_sales_child_documents($trans_type, $trans_no, $child_type=null)
{
	// FIXME -  credit notes retrieved here should be those linked to invoices containing 
	// at least one line from related invoice

//	if (!count($trans_no)){
	if (! is_array($trans_no)) {
            return false;
        } else {
            if (! (count($trans_no) > 0)) {
		return false;
            }
        }
        
	$childs = get_sales_child_numbers($trans_type, $trans_no, $child_type);
	if (!count($childs)){
		return false;
        }
		
        if(isset($child_type) && $child_type = ST_CUSTOMER_PAYMENT_RETURN){
            $ctype = ST_CUSTOMER_PAYMENT_RETURN;
        }
        else{
            $ctype = get_child_type($trans_type);
        }
        
	$sql = "SELECT * FROM ".TB_PREF."debtor_trans
		WHERE type=".$ctype." AND trans_no IN(". implode(',', array_values($childs)).")";

	return db_query($sql,"The related credit notes could not be retreived");
}

function get_sales_order_pr_details($purch_req_id)
{
    $sql = "SELECT * FROM ".TB_PREF."sales_order_pr sop
            WHERE sop.pr_line_id=".db_escape($purch_req_id);
    
    $result = db_query($sql, "Could not get sales order pr details.");
    
    return db_fetch($result);  
}

function update_sales_order_line_totals($sales_order_src_line_id){
    $sod_qty_invoiced_total = get_sales_order_detail_total_invoiced_quantity($sales_order_src_line_id);
    $sod_qty_dispatched_total = get_sales_order_detail_total_dispatched_quantity($sales_order_src_line_id);
    
    if($sod_qty_invoiced_total >= 0 || $sod_qty_dispatched_total >= 0){
        $sql = "UPDATE ".TB_PREF."sales_order_details 
                    SET qty_sent = ".db_escape($sod_qty_invoiced_total).",
                        qty_dispatched = ".db_escape($sod_qty_dispatched_total).",
                        row_state = ".db_escape(mt_rand(10, 10000))."
                WHERE id = ".db_escape($sales_order_src_line_id);

        db_query($sql, "Could not update_sales_order_line_totals");
        if(!(db_num_affected_rows() > 0)){
            cancel_transaction();
            return array("success" => false, "message" => "Could not update Sales Order Detail line #$sales_order_src_line_id
                                                           invoiced quantity and dispatched quantity totals.");//qty_sent field
        }
    }
    return array("success" => true, "message" => "");
}


?>