1: <?php
 2: namespace Yep\Stopwatch;
 3: 
 4: class Stopwatch {
 5:     /** @var null|string */
 6:     protected $name;
 7: 
 8:     /** @var Event[] */
 9:     protected $events = [];
10: 
11:     public function __construct($name = null) {
12:         $this->name = $name;
13:     }
14: 
15:     /**
16:      * Returns the stopwatch name
17:      *
18:      * @return null|string
19:      */
20:     public function getName() {
21:         return $this->name;
22:     }
23: 
24:     /**
25:      * Starts the new lap in the event
26:      *
27:      * @param string      $name
28:      * @param null|string $group
29:      * @return Event
30:      */
31:     public function start($name, $group = null) {
32:         if (empty($this->events[$name])) {
33:             $this->events[$name] = new Event($name, $group);
34:         }
35: 
36:         return $this->getEvent($name)->startLap();
37:     }
38: 
39:     /**
40:      * Stops the latest lap in the event
41:      *
42:      * @param string $name
43:      * @return Event
44:      */
45:     public function stop($name) {
46:         return $this->getEvent($name)->stopLap();
47:     }
48: 
49:     /**
50:      * Stops the latest lap in the event and star new one
51:      *
52:      * @param string $name
53:      * @return Event
54:      */
55:     public function lap($name) {
56:         return $this->getEvent($name)->stopLap()->startLap();
57:     }
58: 
59:     /**
60:      * Returns exists
61:      *
62:      * @param string $name
63:      * @return Event
64:      * @throws StopwatchEventDoesntExistException
65:      */
66:     public function getEvent($name) {
67:         if (empty($this->events[$name])) {
68:             throw new StopwatchEventDoesntExistException(sprintf('Event with name "%s" doesn\'t exist.', $name));
69:         }
70: 
71:         return $this->events[$name];
72:     }
73: 
74:     /**
75:      * Returns the stopwatch events
76:      *
77:      * @return Event[]
78:      */
79:     public function getEvents() {
80:         return $this->events;
81:     }
82: }
83: