library/invoice_summary.inc.php

   1 <?php
   2 // Copyright (C) 2005 Rod Roark <rod@sunsetsystems.com>
   3 //
   4 // This program is free software; you can redistribute it and/or
   5 // modify it under the terms of the GNU General Public License
   6 // as published by the Free Software Foundation; either version 2
   7 // of the License, or (at your option) any later version.
   8
   9 // This returns an associative array keyed on procedure code, representing
  10 // all charge items for one invoice.  This array's values are themselves
  11 // associative arrays having the following keys:
  12 //  chg - the sum of line items, including adjustments, for the code
  13 //  bal - the unpaid balance
  14 //  ins - the id of the insurance company that was billed
  15 //
  16 function get_invoice_summary($trans_id) {
  17   global $sl_err, $sl_cash_acc;
  18
  19   $codes = array();
  20
  21   $chart_id_cash = SLQueryValue("select id from chart where accno = '$sl_cash_acc'");
  22   if ($sl_err) die($sl_err);
  23   if (! $chart_id_cash) die("There is no COA entry for cash account '$sl_cash_acc'");
  24
  25   // Request all cash entries belonging to the invoice.
  26   $atres = SLQuery("select * from acc_trans where trans_id = $trans_id and chart_id = $chart_id_cash");
  27   if ($sl_err) die($sl_err);
  28
  29   // Deduct payments for each procedure code from the respective balance owed.
  30   for ($irow = 0; $irow < SLRowCount($atres); ++$irow) {
  31     $row = SLGetRow($atres, $irow);
  32     $code = strtoupper($row['memo']);
  33     $ins_id = $row['project_id'];
  34     if (! $code) $code = "Unknown";
  35     $amount = $row['amount'];
  36     $codes[$code]['bal'] += $amount; // amount is negative for a payment
  37     if ($ins_id)
  38       $codes[$code]['ins'] = $ins_id;
  39   }
  40
  41   // Request all line items with money belonging to the invoice.
  42   $inres = SLQuery("select * from invoice where trans_id = $trans_id and sellprice != 0");
  43   if ($sl_err) die($sl_err);
  44
  45   // Add charges and adjustments for each procedure code into its total and balance.
  46   for ($irow = 0; $irow < SLRowCount($inres); ++$irow) {
  47     $row = SLGetRow($inres, $irow);
  48     $amount = $row['sellprice'];
  49     $ins_id = $row['project_id'];
  50
  51     $code = "Unknown";
  52     if (preg_match("/([A-Za-z0-9]\d\d\S*)/", $row['serialnumber'], $matches)) {
  53       $code = strtoupper($matches[1]);
  54     }
  55     else if (preg_match("/([A-Za-z0-9]\d\d\S*)/", $row['description'], $matches)) {
  56       $code = strtoupper($matches[1]);
  57     }
  58
  59     $codes[$code]['chg'] += $amount;
  60     $codes[$code]['bal'] += $amount;
  61
  62     if ($ins_id)
  63       $codes[$code]['ins'] = $ins_id;
  64   }
  65
  66   return $codes;
  67 }
  68 ?>