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<?php
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namespace Nuwave\Lighthouse\Validation;
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use GraphQL\Language\AST\FieldDefinitionNode;
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use GraphQL\Language\AST\InputValueDefinitionNode;
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use GraphQL\Language\AST\ObjectTypeDefinitionNode;
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use Nuwave\Lighthouse\Exceptions\DefinitionException;
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use Nuwave\Lighthouse\Schema\AST\DocumentAST;
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use Nuwave\Lighthouse\Schema\Directives\BaseDirective;
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use Nuwave\Lighthouse\Support\Contracts\ArgManipulator;
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use Nuwave\Lighthouse\Support\Contracts\ArgumentValidation;
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abstract class BaseRulesDirective extends BaseDirective implements ArgumentValidation, ArgManipulator
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{
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public function rules(): array
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{
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$rules = $this->directiveArgValue('apply');
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// Custom rules may be referenced through their fully qualified class name.
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// The Laravel validator expects a class instance to be passed, so we
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// resolve any given rule where a corresponding class exists.
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foreach ($rules as $key => $rule) {
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if (class_exists($rule)) {
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$rules[$key] = app($rule);
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}
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}
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return $rules;
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}
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public function messages(): array
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{
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$messages = $this->directiveArgValue('messages');
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if ($messages === null) {
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return [];
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}
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if (isset($messages[0])) {
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/** @var array<string, string> $flattened */
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$flattened = [];
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/**
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* We know this holds true, because it has been validated before.
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*
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* @var array{rule: string, message: string} $messageMap
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*/
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foreach ($messages as $messageMap) {
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$flattened[$messageMap['rule']] = $messageMap['message'];
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}
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return $flattened;
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}
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return $messages;
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}
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public function attribute(): ?string
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{
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return $this->directiveArgValue('attribute');
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}
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public function manipulateArgDefinition(
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DocumentAST &$documentAST,
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InputValueDefinitionNode &$argDefinition,
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FieldDefinitionNode &$parentField,
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ObjectTypeDefinitionNode &$parentType
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) {
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$this->validateRulesArg();
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$this->validateMessageArg();
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}
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protected function validateRulesArg(): void
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{
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$rules = $this->directiveArgValue('apply');
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if (! is_array($rules)) {
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$this->invalidApplyArgument($rules);
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}
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if (count($rules) === 0) {
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$this->invalidApplyArgument($rules);
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}
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foreach ($rules as $rule) {
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if (! is_string($rule)) {
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$this->invalidApplyArgument($rules);
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}
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}
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}
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protected function validateMessageArg(): void
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{
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$messages = $this->directiveArgValue('messages');
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if ($messages === null) {
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return;
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}
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if (! is_array($messages)) {
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$this->invalidMessageArgument($messages);
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}
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if (isset($messages[0])) {
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foreach ($messages as $messageMap) {
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if (! is_array($messageMap)) {
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$this->invalidMessageArgument($messages);
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}
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$rule = $messageMap['rule'] ?? null;
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if (! is_string($rule)) {
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$this->invalidMessageArgument($messages);
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}
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$message = $messageMap['message'] ?? null;
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if (! is_string($message)) {
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$this->invalidMessageArgument($messages);
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}
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}
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} else {
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foreach ($messages as $rule => $message) {
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if (! is_string($rule)) {
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$this->invalidMessageArgument($messages);
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}
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if (! is_string($message)) {
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$this->invalidMessageArgument($messages);
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}
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}
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}
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}
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/**
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* @param mixed $messages Whatever faulty value was given for messages
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* @throws DefinitionException
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*/
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protected function invalidMessageArgument($messages): void
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{
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$encoded = \Safe\json_encode($messages);
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throw new DefinitionException(
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"The `messages` argument of @`{$this->name()}` on `{$this->nodeName()} must be a list of input values with the string keys `rule` and `message`, got: {$encoded}"
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);
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}
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/**
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* @param mixed $apply Any invalid value
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*
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* @throws \Nuwave\Lighthouse\Exceptions\DefinitionException
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*/
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protected function invalidApplyArgument($apply): void
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{
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$encoded = \Safe\json_encode($apply);
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throw new DefinitionException(
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"The `apply` argument of @`{$this->name()}` on `{$this->nodeName()}` has to be a list of strings, got: {$encoded}"
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);
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}
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}
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spawnia