Collection.php
147 lines
| 1 | <?php |
| 2 | |
| 3 | namespace OTGS\Installer; |
| 4 | |
| 5 | class Collection { |
| 6 | private $array; |
| 7 | |
| 8 | protected $items = []; |
| 9 | |
| 10 | private function __construct( array $array ) { |
| 11 | $this->array = $array; |
| 12 | } |
| 13 | |
| 14 | public static function of( array $array ) { |
| 15 | return new static( $array ); |
| 16 | } |
| 17 | |
| 18 | public function filter( callable $fn ) { |
| 19 | return self::of( array_filter( $this->array, $fn ) ); |
| 20 | } |
| 21 | |
| 22 | public function map( callable $fn ) { |
| 23 | $keys = array_keys( $this->array ); |
| 24 | |
| 25 | $items = array_map( $fn, $this->array, $keys ); |
| 26 | |
| 27 | $combined = array_combine( $keys, $items ); |
| 28 | |
| 29 | return self::of( false !== $combined ? $combined : [] ); |
| 30 | } |
| 31 | |
| 32 | public function entities() { |
| 33 | $toPairs = function ( $value, $key ) { |
| 34 | return [ $key, $value ]; |
| 35 | }; |
| 36 | |
| 37 | return $this->map( $toPairs ); |
| 38 | } |
| 39 | |
| 40 | public function pluck( $column ) { |
| 41 | return self::of( array_column( $this->array, $column ) ); |
| 42 | } |
| 43 | |
| 44 | public function reduce( callable $fn, $initial = 0 ) { |
| 45 | return array_reduce( $this->array, $fn, $initial ); |
| 46 | } |
| 47 | |
| 48 | public function values() { |
| 49 | return self::of( array_values( $this->array ) ); |
| 50 | } |
| 51 | |
| 52 | public function mergeRecursive( array $other ) { |
| 53 | return self::of( array_merge_recursive( $this->array, $other ) ); |
| 54 | } |
| 55 | |
| 56 | public function get( $key = null ) { |
| 57 | if ( null !== $key ) { |
| 58 | $data = array_key_exists( $key, $this->array ) ? $this->array[ $key ] : null; |
| 59 | if ( is_array( $data ) ) { |
| 60 | return self::of( $data ); |
| 61 | } elseif ( is_null( $data ) ) { |
| 62 | return new NullCollection(); |
| 63 | } |
| 64 | |
| 65 | return $data; |
| 66 | } |
| 67 | |
| 68 | return $this->array; |
| 69 | } |
| 70 | |
| 71 | public function getOrNull( $key = null ) { |
| 72 | return $this->get( $key ); |
| 73 | } |
| 74 | |
| 75 | public function contains( $value ) { |
| 76 | return in_array( $value, $this->array, true ); |
| 77 | } |
| 78 | |
| 79 | public function head() { |
| 80 | if ( count( $this->array ) ) { |
| 81 | $temp = array_values( $this->array ); |
| 82 | $result = $temp[0]; |
| 83 | if ( is_array( $result ) ) { |
| 84 | return self::of( $result ); |
| 85 | } |
| 86 | |
| 87 | return $result; |
| 88 | } |
| 89 | |
| 90 | return new NullCollection(); |
| 91 | } |
| 92 | |
| 93 | public function offsetExists( $key ) { |
| 94 | return array_key_exists( $key, $this->items ); |
| 95 | } |
| 96 | |
| 97 | public function has( $key ) { |
| 98 | return $this->offsetExists( $key ); |
| 99 | } |
| 100 | |
| 101 | public function any( callable $fn ) { |
| 102 | return $this->filter( $fn )->count() > 0; |
| 103 | } |
| 104 | |
| 105 | public function count() { |
| 106 | return count( $this->array ); |
| 107 | } |
| 108 | |
| 109 | public function firstIndex( callable $fn ) { |
| 110 | foreach ( $this->array as $index=>$item ) { |
| 111 | if ( $fn( $item ) ) { |
| 112 | return $index; |
| 113 | } |
| 114 | } |
| 115 | return -1; |
| 116 | |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | class NullCollection { |
| 121 | |
| 122 | public function map( callable $fn ) { |
| 123 | return $this; |
| 124 | } |
| 125 | |
| 126 | public function filter( callable $fn ) { |
| 127 | return $this; |
| 128 | } |
| 129 | |
| 130 | public function head() { |
| 131 | return $this; |
| 132 | } |
| 133 | |
| 134 | public function pluck() { |
| 135 | return $this; |
| 136 | } |
| 137 | |
| 138 | public function get() { |
| 139 | return $this; |
| 140 | } |
| 141 | |
| 142 | public function getOrNull() { |
| 143 | return null; |
| 144 | } |
| 145 | |
| 146 | } |
| 147 |