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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Celema\Boiler; |
| 6 | |
| 7 | use Celema\Boiler\Contract\Wrapper; |
| 8 | use Celema\Boiler\Exception\RuntimeException; |
| 9 | use Celema\Boiler\Proxy\ArrayProxy; |
| 10 | use Celema\Boiler\Proxy\StringProxy; |
| 11 | use Stringable; |
| 12 | |
| 13 | /** |
| 14 | * The values a template's code receives: its render context, wrapped in an |
| 15 | * escaped render, and the results of its template methods. |
| 16 | * |
| 17 | * Kept apart from Context, because templates run in the scope of their |
| 18 | * context object, where every method of Context would shadow a registered |
| 19 | * template method of the same name. |
| 20 | * |
| 21 | * @internal |
| 22 | */ |
| 23 | final class Values |
| 24 | { |
| 25 | /** @var array<array-key, mixed>|null */ |
| 26 | private ?array $wrapped; |
| 27 | |
| 28 | /** |
| 29 | * @param array<array-key, mixed> $context |
| 30 | * @param bool $wrapped whether the context holds its values as a template gets them, like that of a layout or include |
| 31 | */ |
| 32 | public function __construct( |
| 33 | private array $context, |
| 34 | public readonly Wrapper $wrapper, |
| 35 | private readonly bool $autoescape, |
| 36 | bool $wrapped, |
| 37 | ) { |
| 38 | $this->wrapped = $wrapped ? $context : null; |
| 39 | } |
| 40 | |
| 41 | /** The original string of a path, name, or key, which a template may pass wrapped. */ |
| 42 | public static function plain(StringProxy|string $value): string |
| 43 | { |
| 44 | return $value instanceof StringProxy ? $value->unwrap() : $value; |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * @param ArrayProxy|array<array-key, mixed> $values |
| 49 | * @return array<array-key, mixed> |
| 50 | */ |
| 51 | public function get(ArrayProxy|array $values = []): array |
| 52 | { |
| 53 | if ($values instanceof ArrayProxy) { |
| 54 | $values = $values->unwrap(); |
| 55 | } |
| 56 | |
| 57 | if (!$this->autoescape) { |
| 58 | return $values === [] |
| 59 | ? $this->context |
| 60 | : array_merge($this->context, $values); |
| 61 | } |
| 62 | |
| 63 | if ($values === []) { |
| 64 | return $this->wrapped(); |
| 65 | } |
| 66 | |
| 67 | return array_merge($this->wrapped(), $this->wrapAll($values)); |
| 68 | } |
| 69 | |
| 70 | public function add(StringProxy|string $key, mixed $value): mixed |
| 71 | { |
| 72 | $this->context[self::plain($key)] = $value; |
| 73 | $this->wrapped = null; |
| 74 | |
| 75 | return $this->output($value); |
| 76 | } |
| 77 | |
| 78 | /** What a template receives for a value, such as the result of a template method. */ |
| 79 | public function output(mixed $value, bool $safe = false): mixed |
| 80 | { |
| 81 | if (!$this->autoescape) { |
| 82 | return $this->wrapper->unwrap($value); |
| 83 | } |
| 84 | |
| 85 | if (!$safe) { |
| 86 | return $this->wrapper->wrap($value); |
| 87 | } |
| 88 | |
| 89 | if ($value instanceof StringProxy) { |
| 90 | return new StringProxy($value->unwrap(), $this->wrapper, safe: true); |
| 91 | } |
| 92 | |
| 93 | if (is_string($value) || $value instanceof Stringable) { |
| 94 | return new StringProxy((string) $value, $this->wrapper, safe: true); |
| 95 | } |
| 96 | |
| 97 | throw new RuntimeException('Safe template methods must return string or Stringable values'); |
| 98 | } |
| 99 | |
| 100 | /** @return array<array-key, mixed> */ |
| 101 | private function wrapped(): array |
| 102 | { |
| 103 | return $this->wrapped ??= $this->wrapAll($this->context); |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * @param array<array-key, mixed> $values |
| 108 | * @return array<array-key, mixed> |
| 109 | */ |
| 110 | private function wrapAll(array $values): array |
| 111 | { |
| 112 | $wrapped = []; |
| 113 | |
| 114 | /** @var mixed $value */ |
| 115 | foreach ($values as $key => $value) { |
| 116 | /** @psalm-suppress MixedAssignment wrapper returns mixed by design */ |
| 117 | $wrapped[$key] = $this->wrapper->wrap($value); |
| 118 | } |
| 119 | |
| 120 | return $wrapped; |
| 121 | } |
| 122 | } |