<?php
DEFINE('FILENAME_GV_QUEUE', 'gv_queue.php');
DEFINE('FILENAME_GV_MAIL', 'gv_mail.php');
DEFINE('FILENAME_GV_SENT', 'gv_sent.php');
define('FILENAME_COUPON_ADMIN', 'coupon_admin.php');

define('TABLE_COUPON_GV_QUEUE', 'coupon_gv_queue');
define('TABLE_COUPON_GV_CUSTOMER', 'coupon_gv_customer');
define('TABLE_COUPON_EMAIL_TRACK', 'coupon_email_track');
define('TABLE_COUPON_REDEEM_TRACK', 'coupon_redeem_track');
define('TABLE_COUPONS', 'coupons');
define('TABLE_COUPONS_DESCRIPTION', 'coupons_description');

// Below are some defines which affect the way the discount coupon/gift voucher system work
// Be careful when editing them.
//
// Set the length of the redeem code, the longer the more secure

define('SECURITY_CODE_LENGTH', '6');

////
// Create a Coupon Code. length may be between 1 and 16 Characters
// $salt needs some thought.

  function create_coupon_code($salt="secret", $length=SECURITY_CODE_LENGTH) {
    $ccid = md5(uniqid("","salt"));
    $ccid .= md5(uniqid("","salt"));
    $ccid .= md5(uniqid("","salt"));
    $ccid .= md5(uniqid("","salt"));
    srand((double)microtime()*1000000); // seed the random number generator
    $random_start = @rand(0, (128-$length));
    $good_result = 0;
    while ($good_result == 0) {
      $id1=substr($ccid, $random_start,$length);        
      $query = tep_db_query("select coupon_code from " . TABLE_COUPONS . " where coupon_code = '" . $id1 . "'");    
      if (tep_db_num_rows($query) == 0) $good_result = 1;
    }
    return $id1;
  }
////
// Update the Customers GV account
  function tep_gv_account_update($customer_id, $gv_id) {
    $customer_gv_query = tep_db_query("select amount from " . TABLE_COUPON_GV_CUSTOMER . " where customer_id = '" . $customer_id . "'");
    $coupon_gv_query = tep_db_query("select coupon_amount from " . TABLE_COUPONS . " where coupon_id = '" . $gv_id . "'");
    $coupon_gv = tep_db_fetch_array($coupon_gv_query);
    if (tep_db_num_rows($customer_gv_query) > 0) {
      $customer_gv = tep_db_fetch_array($customer_gv_query);
      $new_gv_amount = $customer_gv['amount'] + $coupon_gv['coupon_amount'];
 $gv_query = tep_db_query("update " . TABLE_COUPON_GV_CUSTOMER . " set amount = '" . $new_gv_amount . "' where customer_id = '" . $customer_id . "'");
    } else {
      $gv_query = tep_db_query("insert into " . TABLE_COUPON_GV_CUSTOMER . " (customer_id, amount) values ('" . $customer_id . "', '" . $coupon_gv['coupon_amount'] . "')");
    }
  }
////
// Output a day/month/year dropdown selector
  function tep_draw_date_selector($prefix, $date='') {
    $month_array = array();
    $month_array[1] =_JANUARY;
    $month_array[2] =_FEBRUARY;
    $month_array[3] =_MARCH;
    $month_array[4] =_APRIL;
    $month_array[5] =_MAY;
    $month_array[6] =_JUNE;
    $month_array[7] =_JULY;
    $month_array[8] =_AUGUST;
    $month_array[9] =_SEPTEMBER;
    $month_array[10] =_OCTOBER;
    $month_array[11] =_NOVEMBER;
    $month_array[12] =_DECEMBER;
    $usedate = getdate($date);
    $day = $usedate['mday'];
    $month = $usedate['mon'];
    $year = $usedate['year'];		
    $date_selector = '<select name="'. $prefix .'_day">';
    for ($i=1;$i<32;$i++){
      $date_selector .= '<option value="' . $i . '"';
      if ($i==$day) $date_selector .= 'selected';
      $date_selector .= '>' . $i . '</option>';
    }
    $date_selector .= '</select>';
    $date_selector .= '<select name="'. $prefix .'_month">';
    for ($i=1;$i<13;$i++){
      $date_selector .= '<option value="' . $i . '"';
      if ($i==$month) $date_selector .= 'selected';      
      $date_selector .= '>' . $month_array[$i] . '</option>';
    }
    $date_selector .= '</select>';
    $date_selector .= '<select name="'. $prefix .'_year">';
    for ($i=2001;$i<2019;$i++){
      $date_selector .= '<option value="' . $i . '"';
      if ($i==$year) $date_selector .= 'selected';
      $date_selector .= '>' . $i . '</option>';
    }
    $date_selector .= '</select>';
    return $date_selector;
  }
?>