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1<?php
2namespace NewfoldLabs\WP\Module\Features;
3
4use WP_Forge\Options\Options;
5
6/**
7 * Registry of Feature instances
8 * For managing features within brand plugins.
9 */
10class Registry {
11
12    /**
13     * Array of Features Instances
14     *
15     * @var Array ( $name => Instance )
16     */
17    private $features = array();
18
19    /**
20     * Options object
21     * See https://github.com/wp-forge/wp-options
22     * Key value pairs for feature name and enabled boolean
23     * This is saved to options table in database
24     *
25     * @var Options
26     */
27    private $options;
28
29    /**
30     * Constructor
31     */
32    public function __construct() {
33        $this->options = new Options( 'newfold_features' );
34    }
35
36    /**
37     * Checks if a feature is registered.
38     *
39     * @param string $name The feature name.
40     * @return bool True if registered, false otherwise.
41     */
42    public function has( $name ) {
43        return isset( $this->features[ $name ] );
44    }
45
46    /**
47     * Registers a feature with the registry.
48     *
49     * @param string $className The feature class name.
50     */
51    public function set( $className ) {
52        $instance                = new $className( $this->options );
53        $name                    = $instance->getName();
54        $this->features[ $name ] = $instance;
55    }
56
57    /**
58     * Retrieves a feature instance by name.
59     *
60     * @param string $name The feature name.
61     * @return mixed|null The feature instance if found, null otherwise.
62     */
63    public function get( $name ) {
64        if ( $this->has( $name ) ) {
65            return $this->features[ $name ];
66        } else {
67            return null;
68        }
69    }
70
71    /**
72     * Removes a feature from the registry.
73     *
74     * @param string $name The feature name.
75     */
76    public function remove( $name ) {
77        unset( $this->features[ $name ] );
78        $this->options->delete( $name );
79    }
80
81    /**
82     * Returns all registered feature names.
83     *
84     * @return array The list of feature names.
85     */
86    public function keys() {
87        return array_keys( $this->features );
88    }
89
90    /**
91     * Retrieves all registered features and values from option
92     *
93     * @return array The list of features.
94     */
95    public function all() {
96        return $this->options->all();
97    }
98
99    /**
100     * Resets the registry by clearing all features.
101     */
102    public function reset() {
103        // populate with an empty array
104        $this->features = array();
105        $this->options->populate( array() );
106    }
107}