Complex classes like BaseEvent often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use BaseEvent, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 10 | abstract class BaseEvent implements Event  | 
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| 11 | { | 
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| 12 | /**  | 
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| 13 | * @var string|null  | 
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| 14 | */  | 
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| 15 | protected $name;  | 
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| 16 | |||
| 17 | /**  | 
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| 18 | * The cron expression representing the event's frequency.  | 
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| 19 | * @var string  | 
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| 20 | */  | 
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| 21 | protected $expression = '* * * * * *';  | 
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| 22 | |||
| 23 | /**  | 
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| 24 | * The timezone the date should be evaluated on.  | 
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| 25 | * @var \DateTimeZone|string  | 
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| 26 | */  | 
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| 27 | protected $timezone;  | 
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| 28 | |||
| 29 | /**  | 
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| 30 | * The array of filter callbacks. These must return true  | 
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| 31 | * @var callable[]  | 
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| 32 | */  | 
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| 33 | protected $filters = [];  | 
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| 34 | |||
| 35 | /**  | 
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| 36 | * The array of callbacks to be run before the event is started.  | 
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| 37 | * @var callable[]  | 
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| 38 | */  | 
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| 39 | protected $beforeCallbacks = [];  | 
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| 40 | |||
| 41 | /**  | 
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| 42 | * The array of callbacks to be run after the event is finished.  | 
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| 43 | * @var callable[]  | 
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| 44 | */  | 
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| 45 | protected $afterCallbacks = [];  | 
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| 46 | |||
| 47 | /**  | 
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| 48 | * The array of reject callbacks.  | 
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| 49 | * @var callable[]  | 
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| 50 | */  | 
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| 51 | protected $rejects = [];  | 
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| 52 | |||
| 53 | /**  | 
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| 54 | * @var string  | 
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| 55 | */  | 
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| 56 | protected $description;  | 
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| 57 | |||
| 58 | /**  | 
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| 59 | * If you want to run a single event, please give it a name  | 
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| 60 | *  | 
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| 61 | * @return null|string  | 
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| 62 | */  | 
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| 63 | public function getName()  | 
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| 67 | |||
| 68 | /**  | 
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| 69 | * @param string $name  | 
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| 70 | * @return $this  | 
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| 71 | */  | 
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| 72 | public function name($name)  | 
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| 77 | |||
| 78 | /**  | 
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| 79 | * @param string $description  | 
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| 80 | * @return $this  | 
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| 81 | */  | 
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| 82 | public function describe($description)  | 
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| 87 | |||
| 88 | /**  | 
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| 89 | * Schedule the event to run between start and end time.  | 
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| 90 | *  | 
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| 91 | * @param string $startTime  | 
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| 92 | * @param string $endTime  | 
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| 93 | * @return $this  | 
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| 94 | */  | 
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| 95 | public function between($startTime, $endTime)  | 
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| 99 | |||
| 100 | /**  | 
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| 101 | * Schedule the event to not run between start and end time.  | 
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| 102 | *  | 
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| 103 | * @param string $startTime  | 
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| 104 | * @param string $endTime  | 
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| 105 | * @return $this  | 
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| 106 | */  | 
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| 107 | public function notBetween($startTime, $endTime)  | 
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| 111 | |||
| 112 | /**  | 
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| 113 | * Schedule the event to run between start and end time.  | 
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| 114 | *  | 
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| 115 | * @param string $startTime  | 
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| 116 | * @param string $endTime  | 
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| 117 | * @return \Closure  | 
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| 118 | */  | 
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| 119 | private function inTimeInterval($startTime, $endTime)  | 
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| 126 | |||
| 127 | /**  | 
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| 128 | * Set the timezone the date should be evaluated on.  | 
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| 129 | *  | 
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| 130 | * @return $this  | 
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| 131 | */  | 
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| 132 | public function timezone(\DateTimeZone $timezone)  | 
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| 138 | |||
| 139 | /**  | 
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| 140 | * Determine if the given event should run based on the Cron expression.  | 
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| 141 | *  | 
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| 142 | * @return bool  | 
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| 143 | */  | 
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| 144 | 2 | public function isDue()  | 
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| 148 | |||
| 149 | /**  | 
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| 150 | * Determine if the Cron expression passes.  | 
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| 151 | *  | 
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| 152 | * @return boolean  | 
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| 153 | */  | 
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| 154 | 2 | protected function expressionPasses()  | 
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| 164 | |||
| 165 | /**  | 
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| 166 | * Determine if the filters pass for the event.  | 
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| 167 | *  | 
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| 168 | * @return boolean  | 
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| 169 | */  | 
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| 170 | 2 | protected function filtersPass()  | 
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| 186 | |||
| 187 | /**  | 
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| 188 | * The Cron expression representing the event's frequency.  | 
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| 189 | *  | 
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| 190 | * @param string $expression  | 
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| 191 | * @return $this  | 
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| 192 | */  | 
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| 193 | 14 | public function cron(/* string */ $expression)  | 
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| 201 | |||
| 202 | /**  | 
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| 203 | * @return CronExpression  | 
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| 204 | */  | 
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| 205 | 14 | public function getCronExpression()  | 
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| 209 | |||
| 210 | /**  | 
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| 211 | * Change the minute when the job should run (0-59, *, *\/2 etc)  | 
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| 212 | *  | 
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| 213 | * @param string|int $minute  | 
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| 214 | * @return $this  | 
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| 215 | */  | 
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| 216 | 4 | public function minute($minute)  | 
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| 220 | |||
| 221 | /**  | 
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| 222 | * Schedule the event to run every minute.  | 
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| 223 | *  | 
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| 224 | * @return $this  | 
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| 225 | */  | 
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| 226 | 3 | public function everyMinute()  | 
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| 230 | |||
| 231 | /**  | 
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| 232 | * Schedule this event to run every 5 minutes  | 
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| 233 | *  | 
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| 234 | * @return $this  | 
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| 235 | */  | 
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| 236 | public function everyFiveMinutes()  | 
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| 240 | |||
| 241 | /**  | 
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| 242 | * Schedule the event to run every N minutes  | 
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| 243 | *  | 
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| 244 | * @param int $n  | 
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| 245 | * @return $this  | 
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| 246 | */  | 
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| 247 | 1 | public function everyNMinutes(/* int */ $n)  | 
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| 253 | |||
| 254 | /**  | 
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| 255 | * Set the hour when the job should run (0-23, *, *\/2, etc)  | 
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| 256 | *  | 
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| 257 | * @param string|int $hour  | 
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| 258 | * @return $this  | 
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| 259 | */  | 
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| 260 | 1 | public function hour($hour)  | 
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| 264 | |||
| 265 | /**  | 
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| 266 | * Schedule the event to run hourly.  | 
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| 267 | *  | 
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| 268 | * @return $this  | 
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| 269 | */  | 
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| 270 | 1 | public function hourly()  | 
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| 276 | |||
| 277 | /**  | 
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| 278 | * Schedule the event to run daily.  | 
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| 279 | *  | 
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| 280 | * @return $this  | 
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| 281 | */  | 
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| 282 | 1 | public function daily()  | 
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| 288 | |||
| 289 | /**  | 
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| 290 | * Schedule the event to run daily at a given time (10:00, 19:30, etc).  | 
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| 291 | *  | 
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| 292 | * @param string $time  | 
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| 293 | * @return $this  | 
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| 294 | */  | 
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| 295 | 1 | public function dailyAt(/* string */ $time)  | 
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| 304 | |||
| 305 | /**  | 
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| 306 | * Set the days of the week the command should run on.  | 
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| 307 | *  | 
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| 308 | * @param array|mixed $days  | 
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| 309 | * @return $this  | 
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| 310 | */  | 
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| 311 | 1 | public function days($days)  | 
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| 317 | |||
| 318 | /**  | 
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| 319 | * Schedule the event to run only on weekdays.  | 
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| 320 | *  | 
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| 321 | * @return $this  | 
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| 322 | */  | 
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| 323 | 1 | public function weekdays()  | 
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| 327 | |||
| 328 | /**  | 
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| 329 | * Schedule the event to run only on Mondays.  | 
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| 330 | *  | 
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| 331 | * @return $this  | 
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| 332 | */  | 
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| 333 | public function mondays()  | 
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| 337 | |||
| 338 | /**  | 
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| 339 | * Schedule the event to run only on Tuesdays.  | 
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| 340 | *  | 
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| 341 | * @return $this  | 
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| 342 | */  | 
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| 343 | public function tuesdays()  | 
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| 347 | |||
| 348 | /**  | 
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| 349 | * Schedule the event to run only on Wednesdays.  | 
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| 350 | *  | 
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| 351 | * @return $this  | 
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| 352 | */  | 
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| 353 | public function wednesdays()  | 
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| 357 | |||
| 358 | /**  | 
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| 359 | * Schedule the event to run only on Thursdays.  | 
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| 360 | *  | 
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| 361 | * @return $this  | 
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| 362 | */  | 
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| 363 | public function thursdays()  | 
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| 367 | |||
| 368 | /**  | 
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| 369 | * Schedule the event to run only on Fridays.  | 
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| 370 | *  | 
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| 371 | * @return $this  | 
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| 372 | */  | 
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| 373 | public function fridays()  | 
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| 377 | |||
| 378 | /**  | 
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| 379 | * Schedule the event to run only on Saturdays.  | 
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| 380 | *  | 
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| 381 | * @return $this  | 
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| 382 | */  | 
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| 383 | public function saturdays()  | 
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| 387 | |||
| 388 | /**  | 
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| 389 | * Schedule the event to run only on Sundays.  | 
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| 390 | *  | 
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| 391 | * @return $this  | 
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| 392 | */  | 
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| 393 | public function sundays()  | 
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| 397 | |||
| 398 | /**  | 
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| 399 | * Schedule the event to run weekly.  | 
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| 400 | *  | 
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| 401 | * @return $this  | 
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| 402 | */  | 
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| 403 | 1 | public function weekly()  | 
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| 409 | |||
| 410 | /**  | 
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| 411 | * Schedule the event to run weekly on a given day and time.  | 
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| 412 | *  | 
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| 413 | * @param int $day  | 
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| 414 | * @param string $time  | 
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| 415 | * @return $this  | 
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| 416 | */  | 
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| 417 | public function weeklyOn($day, $time = '0:0')  | 
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| 422 | |||
| 423 | /**  | 
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| 424 | * Schedule the event to run monthly.  | 
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| 425 | *  | 
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| 426 | * @return $this  | 
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| 427 | */  | 
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| 428 | 1 | public function monthly()  | 
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| 434 | |||
| 435 | /**  | 
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| 436 | * Schedule the event to run monthly on a given day and time.  | 
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| 437 | *  | 
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| 438 | * @param int $day  | 
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| 439 | * @param string $time  | 
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| 440 | * @return $this  | 
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| 441 | */  | 
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| 442 | public function monthlyOn($day = 1, $time = '0:0')  | 
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| 447 | |||
| 448 | /**  | 
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| 449 | * Schedule the event to run quarterly.  | 
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| 450 | *  | 
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| 451 | * @return $this  | 
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| 452 | */  | 
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| 453 | 1 | public function quarterly()  | 
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| 460 | |||
| 461 | /**  | 
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| 462 | * Schedule the event to run yearly.  | 
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| 463 | *  | 
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| 464 | * @return $this  | 
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| 465 | */  | 
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| 466 | 1 | public function yearly()  | 
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| 473 | |||
| 474 | /**  | 
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| 475 | * Splice the given value into the given position of the expression.  | 
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| 476 | *  | 
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| 477 | * @param int $position  | 
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| 478 | * @param string $value  | 
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| 479 | * @return $this  | 
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| 480 | */  | 
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| 481 | 14 | protected function spliceIntoPosition($position, $value)  | 
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| 487 | |||
| 488 | |||
| 489 | /**  | 
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| 490 | * Register a callback to further filter the schedule.  | 
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| 491 | *  | 
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| 492 | * @param callable $callback  | 
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| 493 | * @return $this  | 
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| 494 | */  | 
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| 495 | 1 | public function when(callable $callback)  | 
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| 501 | |||
| 502 | /**  | 
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| 503 | * Register a callback to further filter the schedule.  | 
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| 504 | *  | 
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| 505 | * @param callable $callback  | 
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| 506 | * @return $this  | 
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| 507 | */  | 
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| 508 | 1 | public function skip(callable $callback)  | 
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| 514 | |||
| 515 | /**  | 
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| 516 | * Register a callback to be called before the operation.  | 
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| 517 | *  | 
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| 518 | * @param callable $callback  | 
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| 519 | * @return $this  | 
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| 520 | */  | 
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| 521 | public function before(callable $callback)  | 
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| 527 | |||
| 528 | /**  | 
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| 529 | * Register a callback to be called after the operation.  | 
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| 530 | *  | 
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| 531 | * @param callable $callback  | 
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| 532 | * @return $this  | 
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| 533 | */  | 
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| 534 | public function after(callable $callback)  | 
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| 540 | }  | 
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| 541 | 
Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum.