Adds repeatingAt functionality to hourly

README.md

@@ -24,7 +24,10 @@ can be used to create a new instance of `Hourly`.
 
 If you call `hourly()` by itself, you'll get a crontab schedule of "run hourly on the hour". You can specify
  the minutes past the hour to run at by using the `at()` method. This method takes either a number (0-59) or
- one of the following text strings: `quarter past`, `half past` or `quarter to`.
+ one of the following text strings: `on the hour`, `quarter past`, `half past` or `quarter to`.
+
+ You can use the `repeatingAt` method to run a task multiple times in an hour. This method takes the same 
+ argument as `at()`, i.e. a number (0-59) or a text string from the above list.
 
  ``` php
  use function Garethellis\CrontabScheduleGenerator\hourly;
@@ -35,11 +38,11 @@ If you call `hourly()` by itself, you'll get a crontab schedule of "run hourly o
  echo hourly()->at("20");
  //outputs "20 * * * *" (i.e. run hourly at twenty past the hour)   
 
- echo daily()->at("half past");
+ echo hourly()->at("half past");
  //outputs "30 * * * *" (i.e. run hourly at half past the hour)
 
- echo daily()->at("9:30")->repeatingAt("10")->repeatingAt("11");
- //outputs "30 9,10,11 * * *" (i.e. run daily at 9:30, 10:30 and 11:30)
+ echo hourly()->at("on the hour")->repeatingAt("quarter past")->repeatingAt("half past")->repeatingAt("quarter to");
+ //outputs "0,15,30,45 * * * *" (i.e. run every 15 minutes)
  ```
 
 ### Daily

src/Functions.php

@@ -20,4 +20,4 @@ function monthly()
 function hourly()
 {
     return new Hourly();
-}
+}

src/Hourly.php

@@ -9,25 +9,49 @@ class Hourly
     private $mins = 0;
 
     private $textDescriptions = [
+        "on the hour"  => "0",
         "quarter past" => "15",
         "half past"    => "30",
         "quarter to"   => "45",
     ];
 
     public function __toString()
     {
-        return sprintf("%s * * * *", $this->mins);
+        if (!is_array($this->mins)) {
+            return sprintf("%s * * * *", $this->mins);
+        }
+        return sprintf("%s * * * *", implode(",", $this->mins));
     }
 
     public function at($minutes)
     {
         if (!is_numeric($minutes)) {
             Assertion::choice($minutes, array_keys($this->textDescriptions));
+            $minutes = $this->textDescriptions[$minutes];
+        } else {
+            Assertion::range($minutes, 0, 59);
+        }
+
+        $this->mins = $minutes;
+        return $this;
+    }
+
+    public function repeatingAt($minutes)
+    {
+        if (!is_numeric($minutes)) {
+            Assertion::choice($minutes, array_keys($this->textDescriptions));
+            $minutes = $this->textDescriptions[$minutes];
         } else {
             Assertion::range($minutes, 0, 59);
         }
 
-        $this->mins = $this->textDescriptions[$minutes];
+        if (!is_array($this->mins)) {
+            $this->mins = [$this->mins];
+        }
+
+        if (!in_array($minutes, $this->mins)) {
+            $this->mins[] = $minutes;
+        }
         return $this;
     }
-}
+}

tests/HourlyTest.php

@@ -37,4 +37,15 @@ public function test_it_can_return_an_hourly_crontab_with_minutes_specified_nume
             is(equalTo("23 * * * *"))
         );
     }
+
+    /**
+     * @return void
+     */
+    public function test_it_can_repeat_after_a_given_number_of_minutes()
+    {
+        assertThat(
+            (string)hourly()->at("quarter past")->repeatingAt("half past")->repeatingAt("quarter to")->repeatingAt("50"),
+            is(equalTo("15,30,45,50 * * * *"))
+        );
+    }
 }