IcingaTimePeriod: add and test isActive() method

library/Director/Objects/IcingaTimePeriod.php

@@ -39,4 +39,21 @@ class IcingaTimePeriod extends IcingaObject
         // @codingStandardsIgnoreEnd
         return c::renderKeyValue('update', $this->update_method);
     }
+
+    public function isActive($now = null)
+    {
+        if ($now === null) {
+            $now = time();
+        }
+
+        foreach ($this->ranges()->getRanges() as $range) {
+            if ($range->isActive($now)) {
+                return true;
+            }
+        }
+
+        // TODO: no range currently means (and renders) "never", Icinga behaves
+        //       different. Figure out whether and how we should support this
+        return false;
+    }
 }

library/Director/Objects/IcingaTimePeriodRange.php

@@ -17,4 +17,73 @@ class IcingaTimePeriodRange extends DbObject
         'range_type'          => 'include',
         'merge_behaviour'     => 'set',
     );
+
+    public function isActive($now = null)
+    {
+        if ($now === null) {
+            $now = time();
+        }
+
+        if (false === ($wday = $this->getWeekDay($this->timeperiod_key))) {
+            // TODO, dates are not yet supported
+            return false;
+        }
+
+        $wdayName = $this->timeperiod_key;
+
+        if ((int) strftime('%w', $now) !== $wday) {
+            return false;
+        }
+
+        $timeRanges = preg_split('/\s*,\s*/', $this->timeperiod_value, -1, PREG_SPLIT_NO_EMPTY);
+        foreach ($timeRanges as $timeRange) {
+            if ($this->timeRangeIsActive($timeRange, $now)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    protected function timeRangeIsActive($rangeString, $now)
+    {
+        if (sscanf($rangeString, '%2d:%2d-%2d:%2d', $hBegin, $mBegin, $hEnd, $mEnd) === 4) {
+            if ($this->timeFromHourMin($hBegin, $mBegin, $now) <= $now
+                && $this->timeFromHourMin($hEnd, $mEnd, $now) >= $now
+            ) {
+                return true;
+            }
+        } else {
+            // TODO: throw exception?
+        }
+
+        return false;
+    }
+
+    protected function timeFromHourMin($hour, $min, $now)
+    {
+        return strtotime(sprintf('%s %02d:%02d:00', date('Y-m-d', $now), $hour, $min));
+    }
+
+    protected function getWeekDay($day)
+    {
+        switch ($day) {
+            case 'sunday':
+                return 0;
+            case 'monday':
+                return 1;
+            case 'tuesday':
+                return 2;
+            case 'wednesday':
+                return 3;
+            case 'thursday':
+                return 4;
+            case 'friday':
+                return 5;
+            case 'saturday':
+                return 6;
+        }
+
+        return false;
+    }
 }

test/php/library/Director/Objects/IcingaTimePeriodTest.php

@@ -79,6 +79,25 @@ class IcingaTimePeriodTest extends BaseTestCase
         return $object;
     }
 
+    public function testIsActiveWorksForWeekdayRanges()
+    {
+        $period = $this->createTestPeriod();
+
+        $newRanges = array(
+            'monday'    => '00:00-24:00',
+            'tuesday'   => '18:00-24:00',
+            'wednesday' => '00:00-24:00',
+        );
+        $period->ranges = $newRanges;
+
+        // Tuesday:
+        $this->assertFalse($period->isActive(strtotime('2016-05-17 10:00:00')));
+        // Wednesday:
+        $this->assertTrue($period->isActive(strtotime('2016-05-18 10:00:00')));
+        // Thursday:
+        $this->assertFalse($period->isActive(strtotime('2016-05-19 10:00:00')));
+    }
+
     protected function loadTestPeriod()
     {
         return IcingaTimePeriod::load($this->testPeriodName, $this->getDb());