From 7c1ac429e844346a4348580423bc052e252bb065 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Holger=20Mei=C3=9Fner?= <h.meissner.82@web.de>
Date: Thu, 16 Jul 2015 15:22:55 +0200
Subject: [PATCH] Bug 14395: Code changes
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This patch updates the calculation of 'No renewal before' to include the
new syspref NoRenewalBeforePrecision.

To test:

1) Check out an hour-based loan with 'No renewal before' set to 1.
   Switch syspref NoRenewalBeforePrecision between 'date' and 'exact
   time'. Confirm that with both settings the item cannot be renewed
   until exactly one hour before due.

2) Check out a day-based loan with 'No renewal before' set to 1 day.
   Confirm that:
   * with NoRenewalBeforePrecision set to 'date', renewal is possible
     at 12:00 AM on the day before due.
   * with NoRenewalBeforePrecision set to 'exact time', renewal is
     possible at 11:59 PM on the day before due.

Sponsored-by: Hochschule für Gesundheit (hsg), Germany

Signed-off-by: Jesse Weaver <jweaver@bywatersolutions.com>
---
 C4/Circulation.pm | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/C4/Circulation.pm b/C4/Circulation.pm
index ae53366..c5d1ab4 100644
--- a/C4/Circulation.pm
+++ b/C4/Circulation.pm
@@ -2829,14 +2829,20 @@ sub CanBookBeRenewed {
         and $issuingrule->{norenewalbefore} ne "" )
     {
 
-        # Get current time and add norenewalbefore.
-        # If this is smaller than date_due, it's too soon for renewal.
-        my $now = dt_from_string;
-        if (
-            $now->add(
-                $issuingrule->{lengthunit} => $issuingrule->{norenewalbefore}
-            ) < $itemissue->{date_due}
-          )
+        # Calculate soonest renewal by subtracting 'No renewal before' from due date
+        my $soonestrenewal =
+          $itemissue->{date_due}->clone()
+          ->subtract(
+            $issuingrule->{lengthunit} => $issuingrule->{norenewalbefore} );
+
+        # Depending on syspref reset the exact time, only check the date
+        if ( C4::Context->preference('NoRenewalBeforePrecision') eq 'date'
+            and $issuingrule->{lengthunit} eq 'days' )
+        {
+            $soonestrenewal->truncate( to => 'day' );
+        }
+
+        if ( $soonestrenewal > DateTime->now( time_zone => C4::Context->tz() ) )
         {
             return ( 0, "auto_too_soon" ) if $itemissue->{auto_renew};
             return ( 0, "too_soon" );
@@ -3072,11 +3078,16 @@ sub GetSoonestRenewDate {
         and $issuingrule->{norenewalbefore} ne "" )
     {
         my $soonestrenewal =
-          $itemissue->{date_due}->subtract(
+          $itemissue->{date_due}->clone()
+          ->subtract(
             $issuingrule->{lengthunit} => $issuingrule->{norenewalbefore} );
 
-        $soonestrenewal = $now > $soonestrenewal ? $now : $soonestrenewal;
-        return $soonestrenewal;
+        if ( C4::Context->preference('NoRenewalBeforePrecision') eq 'date'
+            and $issuingrule->{lengthunit} eq 'days' )
+        {
+            $soonestrenewal->truncate( to => 'day' );
+        }
+        return $soonestrenewal if $now < $soonestrenewal;
     }
     return $now;
 }
-- 
2.6.2