From bbe157f34046ec9ef81e6ad9ed37c86a0d9155e4 Mon Sep 17 00:00:00 2001
From: Colby Swandale <me@colby.fyi>
Date: Wed, 12 Dec 2018 14:08:35 +1100
Subject: [ruby/logger] split logger classes/modules into separate files

https://github.com/ruby/logger/commit/f10ce9fff2
---
 lib/logger/period.rb | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 lib/logger/period.rb

(limited to 'lib/logger/period.rb')

diff --git a/lib/logger/period.rb b/lib/logger/period.rb
new file mode 100644
index 0000000000..bb8cffc2f8
--- /dev/null
+++ b/lib/logger/period.rb
@@ -0,0 +1,41 @@
+class Logger
+  module Period
+    module_function
+
+    SiD = 24 * 60 * 60
+
+    def next_rotate_time(now, shift_age)
+      case shift_age
+      when 'daily'
+        t = Time.mktime(now.year, now.month, now.mday) + SiD
+      when 'weekly'
+        t = Time.mktime(now.year, now.month, now.mday) + SiD * (7 - now.wday)
+      when 'monthly'
+        t = Time.mktime(now.year, now.month, 1) + SiD * 32
+        return Time.mktime(t.year, t.month, 1)
+      else
+        return now
+      end
+      if t.hour.nonzero? or t.min.nonzero? or t.sec.nonzero?
+        hour = t.hour
+        t = Time.mktime(t.year, t.month, t.mday)
+        t += SiD if hour > 12
+      end
+      t
+    end
+
+    def previous_period_end(now, shift_age)
+      case shift_age
+      when 'daily'
+        t = Time.mktime(now.year, now.month, now.mday) - SiD / 2
+      when 'weekly'
+        t = Time.mktime(now.year, now.month, now.mday) - (SiD * now.wday + SiD / 2)
+      when 'monthly'
+        t = Time.mktime(now.year, now.month, 1) - SiD / 2
+      else
+        return now
+      end
+      Time.mktime(t.year, t.month, t.mday, 23, 59, 59)
+    end
+  end
+end
-- 
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