1 files changed, 103 insertions, 0 deletions
diff --git a/vendor/bakame/http-structured-fields/src/Validation/ItemValidator.php b/vendor/bakame/http-structured-fields/src/Validation/ItemValidator.php
new file mode 100644
index 000000000..21d8cdd2f
--- /dev/null
+++ b/vendor/bakame/http-structured-fields/src/Validation/ItemValidator.php
@@ -0,0 +1,103 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Bakame\Http\StructuredFields\Validation;
+
+use Bakame\Http\StructuredFields\Item;
+use Bakame\Http\StructuredFields\StructuredFieldProvider;
+use Bakame\Http\StructuredFields\SyntaxError;
+use Stringable;
+
+/**
+ * Structured field Item validator.
+ *
+ * @phpstan-import-type SfType from StructuredFieldProvider
+ */
+final class ItemValidator
+{
+    /** @var callable(SfType): (string|bool) */
+    private mixed $valueConstraint;
+    private ParametersValidator $parametersConstraint;
+
+    /**
+     * @param callable(SfType): (string|bool) $valueConstraint
+     */
+    private function __construct(
+        callable $valueConstraint,
+        ParametersValidator $parametersConstraint,
+    ) {
+        $this->valueConstraint = $valueConstraint;
+        $this->parametersConstraint = $parametersConstraint;
+    }
+
+    public static function new(): self
+    {
+        return new self(fn (mixed $value) => false, ParametersValidator::new());
+    }
+
+    /**
+     * Validates the Item value.
+     *
+     * On success populate the result item property
+     * On failure populates the result errors property
+     *
+     * @param callable(SfType): (string|bool) $constraint
+     */
+    public function value(callable $constraint): self
+    {
+        return new self($constraint, $this->parametersConstraint);
+    }
+
+    /**
+     * Validates the Item parameters as a whole.
+     *
+     * On failure populates the result errors property
+     */
+    public function parameters(ParametersValidator $constraint): self
+    {
+        return new self($this->valueConstraint, $constraint);
+    }
+
+    public function __invoke(Item|Stringable|string $item): bool|string
+    {
+        $result = $this->validate($item);
+
+        return $result->isSuccess() ? true : (string) $result->errors;
+    }
+
+    /**
+     * Validates the structured field Item.
+     */
+    public function validate(Item|Stringable|string $item): Result
+    {
+        $violations = new ViolationList();
+        if (!$item instanceof Item) {
+            try {
+                $item = Item::fromHttpValue($item);
+            } catch (SyntaxError $exception) {
+                $violations->add(ErrorCode::ItemFailedParsing->value, new Violation('The item string could not be parsed.', previous: $exception));
+
+                return Result::failed($violations);
+            }
+        }
+
+        try {
+            $itemValue = $item->value($this->valueConstraint);
+        } catch (Violation $exception) {
+            $itemValue = null;
+            $violations->add(ErrorCode::ItemValueFailedValidation->value, $exception);
+        }
+
+        $validate = $this->parametersConstraint->validate($item->parameters());
+        $violations->addAll($validate->errors);
+        if ($violations->isNotEmpty()) {
+            return Result::failed($violations);
+        }
+
+        /** @var ValidatedParameters $validatedParameters */
+        $validatedParameters = $validate->data;
+
+        return Result::success(new ValidatedItem($itemValue, $validatedParameters));
+    }
+}