1: <?php
 2: 
 3: namespace Charcoal\Source;
 4: 
 5: use \InvalidArgumentException;
 6: 
 7: // Dependency from 'charcoal-config'
 8: use \Charcoal\Config\AbstractConfig as AbstractConfig;
 9: 
10: /**
11:  * Source Config
12:  */
13: class SourceConfig extends AbstractConfig
14: {
15:     /**
16:      * @var string $type
17:      */
18:     private $type;
19: 
20:     /**
21:      * @return array
22:      */
23:     public function defaults()
24:     {
25:         return [
26:             'type' => ''
27:         ];
28:     }
29: 
30:     /**
31:      * @param string $type The type of source.
32:      * @throws InvalidArgumentException If parameter is not a string.
33:      * @return SourceConfig Chainable
34:      */
35:     public function setType($type)
36:     {
37:         if (!is_string($type)) {
38:             throw new InvalidArgumentException(
39:                 'Source type must be a string.'
40:             );
41:         }
42:         $this->type = $type;
43:         return $this;
44:     }
45: 
46:     /**
47:      * @return string
48:      */
49:     public function type()
50:     {
51:         return $this->type;
52:     }
53: }
54: