From 42817f45bf1146cf64e88bcbcc48a3adcd46913c Mon Sep 17 00:00:00 2001
From: Wolfgang Sourdeau <wsourdeau@inverse.ca>
Date: Fri, 13 Aug 2010 21:03:04 +0000
Subject: [PATCH] Monotone-Parent: e16807404ac6ea20632ee7e0e21ae2db34830540
 Monotone-Revision: 46e2b0eb136b0ff20576ecbaa9428e3c5bcd2ce7

Monotone-Author: wsourdeau@inverse.ca
Monotone-Date: 2010-08-13T21:03:04
Monotone-Branch: ca.inverse.sogo
---
 SOPE/NGCards/ChangeLog   |  5 +++++
 SOPE/NGCards/iCalAlarm.h |  2 ++
 SOPE/NGCards/iCalAlarm.m | 42 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 49 insertions(+)

diff --git a/SOPE/NGCards/ChangeLog b/SOPE/NGCards/ChangeLog
index 91fb55d8a..1a22c37c3 100644
--- a/SOPE/NGCards/ChangeLog
+++ b/SOPE/NGCards/ChangeLog
@@ -1,3 +1,8 @@
+2010-08-13  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
+
+	* iCalAlarm.m (-nextAlarmDate): new utility method split from the
+	SOGo quick table extractor for events.
+
 2010-08-11  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
 	* NGVCardPhoto.m (-type): returns @"JPEG" if the type is
diff --git a/SOPE/NGCards/iCalAlarm.h b/SOPE/NGCards/iCalAlarm.h
index 41a45c042..ecb39f5c6 100644
--- a/SOPE/NGCards/iCalAlarm.h
+++ b/SOPE/NGCards/iCalAlarm.h
@@ -41,6 +41,8 @@
 - (void) setRecurrenceRule: (NSString *) _recurrenceRule;
 - (NSString *) recurrenceRule;
 
+- (NSCalendarDate *) nextAlarmDate;
+
 @end
 
 #endif /* __NGCards_iCalAlarm_H__ */
diff --git a/SOPE/NGCards/iCalAlarm.m b/SOPE/NGCards/iCalAlarm.m
index a4218fa84..cc7bc363e 100644
--- a/SOPE/NGCards/iCalAlarm.m
+++ b/SOPE/NGCards/iCalAlarm.m
@@ -20,10 +20,14 @@
 */
 
 #import <Foundation/NSString.h>
+#import <NGExtensions/NSNull+misc.h>
+#import <NGExtensions/NSObject+Logs.h>
 
 #import "iCalAttachment.h"
+#import "iCalEvent.h"
 #import "iCalRecurrenceRule.h"
 #import "iCalTrigger.h"
+#import "NSString+NGCards.h"
 
 #import "iCalAlarm.h"
 
@@ -103,4 +107,42 @@
   return [[self uniqueChildWithTag: @"rrule"] value: 0];
 }
 
+- (NSCalendarDate *) nextAlarmDate
+{
+  Class parentClass;
+  iCalTrigger *aTrigger;
+  NSCalendarDate *relationDate, *nextAlarmDate;
+  NSString *relation;
+  NSTimeInterval anInterval;
+  iCalEvent *parentEvent;
+
+  nextAlarmDate = nil;
+
+  parentClass = [parent class];
+  if ([parentClass isKindOfClass: [iCalEvent class]])
+    {
+      parentEvent = (iCalEvent *) parent;
+      aTrigger = [self trigger];
+
+      if ([[aTrigger valueType] caseInsensitiveCompare: @"DURATION"])
+        {
+          relation = [aTrigger relationType];
+          anInterval = [[aTrigger value] durationAsTimeInterval];
+          if ([relation caseInsensitiveCompare: @"END"] == NSOrderedSame)
+            relationDate = [parentEvent endDate];
+          else
+            relationDate = [parentEvent startDate];
+	      
+          // Compute the next alarm date with respect to the reference date
+          if ([relationDate isNotNull])
+            nextAlarmDate = [relationDate addTimeInterval: anInterval];
+        }
+    }
+  else
+    [self warnWithFormat: @"alarms not handled for elements of class '%@'",
+          NSStringFromClass (parentClass)];
+
+  return nextAlarmDate;
+}
+
 @end /* iCalAlarm */