#[ApiResource(
    operations: [
        new Get(
            uriTemplate: '/unsubscribe/{token}',
            formats: [
                'jsonld' => ['application/ld+json'],
                'json' => ['application/json'],
                'html' => ['text/html'],  // This causes the issue
            ],
        ),
    ],
)]
class UnsubscribedEmail {}

// Lines 267-273
foreach ($responseMimeTypes as $operationFormat) {
    $operationOutputSchema = $this->jsonSchemaFactory->buildSchema(
        $resourceClass,
        $operationFormat,  // <-- Includes 'html', 'xml', etc.
        Schema::TYPE_OUTPUT,
        $operation,
        $schema,
        null,
        $forceSchemaCollection
    );
    $operationOutputSchemas[$operationFormat] = $operationOutputSchema;
}

$services->set('api_platform.openapi.factory', OpenApiFactory::class)
    ->args([
        // ... existing args ...
        '%api_platform.jsonschema_formats%',  // Add this parameter
    ]);

public function __construct(
    // ... existing parameters ...
    private readonly array $jsonSchemaFormats = [],
) {
    // ...
}

// Around line 267
foreach ($responseMimeTypes as $mimeType => $operationFormat) {
    // Skip formats that don't have JSON schema support
    if (!isset($this->jsonSchemaFormats[$operationFormat])) {
        continue;
    }

    $operationOutputSchema = $this->jsonSchemaFactory->buildSchema(
        $resourceClass,
        $operationFormat,
        Schema::TYPE_OUTPUT,
        $operation,
        $schema,
        null,
        $forceSchemaCollection
    );
    $operationOutputSchemas[$operationFormat] = $operationOutputSchema;
}

private function buildContent(array $responseMimeTypes, array $operationSchemas): \ArrayObject
{
    $content = new \ArrayObject();

    foreach ($responseMimeTypes as $mimeType => $format) {
        // Only add content entry if we have a schema for this format
        if (isset($operationSchemas[$format])) {
            $content[$mimeType] = new MediaType(
                schema: new \ArrayObject($operationSchemas[$format]->getArrayCopy(false))
            );
        }
        // Non-JSON formats without schemas are simply not included in OpenAPI content
    }

    return $content;
}

if (isset($operationSchemas[$format])) {
    $content[$mimeType] = new MediaType(schema: new \ArrayObject($operationSchemas[$format]->getArrayCopy(false)));
} else {
    // Include the content type but without a schema (valid in OpenAPI 3.1)
    $content[$mimeType] = new MediaType();
}

public function testNonJsonFormatsDoNotGenerateSchemas(): void
{
    // Create a resource with html format
    // Assert that UnsubscribedEmail.html schema does not exist
    // Assert that text/html content type either has no schema or is not present
}

$jsonSchemaFormats = $config['jsonschema_formats'];

if (!$jsonSchemaFormats) {
    foreach (array_merge(array_keys($formats), array_keys($errorFormats)) as $f) {
        // Only JSON-based formats get schemas by default
        if (str_starts_with($f, 'json')) {
            $jsonSchemaFormats[$f] = true;
        }
    }
}