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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Celema\Boiler\Proxy; |
| 6 | |
| 7 | use Celema\Boiler\Contract\PreservesSafety; |
| 8 | use Celema\Boiler\Contract\Wrapper; |
| 9 | use Celema\Boiler\Exception\UnexpectedValueException; |
| 10 | use Override; |
| 11 | |
| 12 | /** |
| 13 | * @api |
| 14 | * |
| 15 | * @implements Proxy<string> |
| 16 | */ |
| 17 | final class StringProxy implements Proxy |
| 18 | { |
| 19 | private ?string $escaped = null; |
| 20 | private bool $safe = false; |
| 21 | |
| 22 | public function __construct( |
| 23 | private readonly string $value, |
| 24 | private readonly Wrapper $wrapper, |
| 25 | ) {} |
| 26 | |
| 27 | public static function safe(string $value, Wrapper $wrapper): self |
| 28 | { |
| 29 | $proxy = new self($value, $wrapper); |
| 30 | $proxy->safe = true; |
| 31 | |
| 32 | return $proxy; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * Dispatch filters as virtual methods: $title->sanitize(), $title->stripTags('<b>'), etc. |
| 37 | * |
| 38 | * @param array<array-key, mixed> $args |
| 39 | */ |
| 40 | public function __call(string $name, array $args): self |
| 41 | { |
| 42 | $filter = $this->wrapper->filter($name); |
| 43 | $filtered = $filter->apply($this->value, ...$args); |
| 44 | $proxy = new self($filtered, $this->wrapper); |
| 45 | $proxy->safe = $filter->safe() || $this->safe && $filter instanceof PreservesSafety; |
| 46 | |
| 47 | return $proxy; |
| 48 | } |
| 49 | |
| 50 | public function __toString(): string |
| 51 | { |
| 52 | if ($this->safe) { |
| 53 | return $this->value; |
| 54 | } |
| 55 | |
| 56 | return $this->escaped ??= $this->wrapper->escape($this->value); |
| 57 | } |
| 58 | |
| 59 | public function escape(?string $escaper = null): string |
| 60 | { |
| 61 | return $this->wrapper->escape($this->value, $escaper); |
| 62 | } |
| 63 | |
| 64 | #[Override] |
| 65 | public function unwrap(): string |
| 66 | { |
| 67 | return $this->value; |
| 68 | } |
| 69 | |
| 70 | #[Override] |
| 71 | public function is(mixed $other): bool |
| 72 | { |
| 73 | return $this->value === ($other instanceof Proxy ? $other->unwrap() : $other); |
| 74 | } |
| 75 | |
| 76 | public function matches(string|self $pattern): bool |
| 77 | { |
| 78 | $pattern = $pattern instanceof self ? $pattern->value : $pattern; |
| 79 | |
| 80 | if ($pattern === '') { |
| 81 | throw new UnexpectedValueException('Empty regex pattern'); |
| 82 | } |
| 83 | |
| 84 | // preg_match() warns on compile errors instead of throwing; capture the |
| 85 | // message, which is more specific than preg_last_error_msg() there. |
| 86 | $warning = null; |
| 87 | set_error_handler(static function (int $severity, string $message) use (&$warning): bool { |
| 88 | $warning = $message; |
| 89 | |
| 90 | return true; |
| 91 | }); |
| 92 | |
| 93 | try { |
| 94 | $result = preg_match($pattern, $this->value); |
| 95 | } finally { |
| 96 | restore_error_handler(); |
| 97 | } |
| 98 | |
| 99 | if ($result === false) { |
| 100 | throw new UnexpectedValueException( |
| 101 | "Regex error for pattern '{$pattern}': " . ($warning ?? preg_last_error_msg()), |
| 102 | ); |
| 103 | } |
| 104 | |
| 105 | return $result === 1; |
| 106 | } |
| 107 | |
| 108 | public function contains(string|self $needle): bool |
| 109 | { |
| 110 | return str_contains($this->value, $needle instanceof self ? $needle->value : $needle); |
| 111 | } |
| 112 | |
| 113 | public function startsWith(string|self $needle): bool |
| 114 | { |
| 115 | return str_starts_with($this->value, $needle instanceof self ? $needle->value : $needle); |
| 116 | } |
| 117 | |
| 118 | public function endsWith(string|self $needle): bool |
| 119 | { |
| 120 | return str_ends_with($this->value, $needle instanceof self ? $needle->value : $needle); |
| 121 | } |
| 122 | |
| 123 | /** @param ArrayProxy|array<array-key, mixed> $haystack */ |
| 124 | #[Override] |
| 125 | public function in(ArrayProxy|array $haystack): bool |
| 126 | { |
| 127 | if ($haystack instanceof ArrayProxy) { |
| 128 | $haystack = $haystack->unwrap(); |
| 129 | } |
| 130 | |
| 131 | /** @var mixed $item */ |
| 132 | foreach ($haystack as $item) { |
| 133 | if ($this->is($item)) { |
| 134 | return true; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | return false; |
| 139 | } |
| 140 | } |