Sirius\Validation\Rule\AbstractRule

Complexity

Total Complexity

29

Size/Duplication

Total Lines	297
Duplicated Lines	0 %

Coupling/Cohesion

Components	2
Dependencies	3

Test Coverage

Coverage

90.59%

Importance

Changes

0

13 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	9	4
A	getUniqueId()	0	4	1
A	setOption()	0	6	1
A	getOption()	0	8	2
A	setContext()	0	18	5
A	setMessageTemplate()	0	6	1
A	getMessageTemplate()	0	11	3
	validate()	0	1	?
A	setErrorMessagePrototype()	0	6	1
A	getErrorMessagePrototype()	0	8	2
A	getMessage()	0	12	2
A	getPotentialMessage()	0	8	1
B	getRelatedValueIdentifier()	0	35	6

<?php
declare(strict_types=1);
namespace Sirius\Validation\Rule;

use Sirius\Validation\DataWrapper\ArrayWrapper;
use Sirius\Validation\DataWrapper\WrapperInterface;
use Sirius\Validation\ErrorMessage;
use Sirius\Validation\Util\RuleHelper;

abstract class AbstractRule
{
    // default error message when there is no LABEL attached
    const MESSAGE = 'Value is not valid';

    // default error message when there is a LABEL attached
    const LABELED_MESSAGE = '{label} is not valid';

    /**
     * The validation context
     * This is the data set that the data being validated belongs to
     * @var WrapperInterface
     */
    protected $context;

    /**
     * Options for the validator.
     * Also passed to the error message for customization.
     *
     * @var array
     */
    protected $options = [];

    /**
     * Custom error message template for the validator instance
     * If you don't agree with the default messages that were provided
     *
     * @var string
     */
    protected $messageTemplate;

    /**
     * Result of the last validation
     *
     * @var boolean
     */
    protected $success = false;

    /**
     * Last value validated with the validator.
     * Stored in order to be passed to the errorMessage so that you get error
     * messages like '"abc" is not a valid email'
     *
     * @var mixed
     */
    protected $value;

    /**
     * The error message prototype that will be used to generate the error message
     *
     * @var ErrorMessage
     */
    protected $errorMessagePrototype;

    /**
     * Options map in case the options are passed as list instead of associative array
     *
     * @var array
     */
    protected $optionsIndexMap = [];

    public function __construct($options = [])
    {
        $options = RuleHelper::normalizeOptions($options, $this->optionsIndexMap);
        if (is_array($options) && ! empty($options)) {
            foreach ($options as $k => $v) {
                $this->setOption($k, $v);
            }
        }
    }

    /**
     * Generates a unique string to identify the validator.
     * It is used to compare 2 validators so you don't add the same rule twice in a validator object
     *
     * @return string
     */
    public function getUniqueId(): string
    {
        return get_called_class() . '|' . json_encode(ksort($this->options));
    }

    /**
     * Set an option for the validator.
     *
     * The options are also be passed to the error message.
     *
     * @param string $name
     * @param mixed $value
     *
     * @return AbstractRule
     */
    public function setOption($name, $value)
    {
        $this->options[$name] = $value;

        return $this;
    }

    /**
     * Get an option for the validator.
     *
     * @param string $name
     *
     * @return mixed
     */
    public function getOption($name)
    {
        if (isset($this->options[$name])) {
            return $this->options[$name];
        } else {
            return null;
        }
    }

    /**
     * The context of the validator can be used when the validator depends on other values
     * that are not known at the moment the validator is constructed
     * For example, when you need to validate an email field matches another email field,
     * to confirm the email address
     *
     * @param array|object $context
     *
     * @return AbstractRule
     *@throws \InvalidArgumentException
     */
    public function setContext($context = null)
    {
        if ($context === null) {
            return $this;
        }
        if (is_array($context)) {
            $context = new ArrayWrapper($context);
        }
        if (! is_object($context) || ! $context instanceof WrapperInterface) {
            throw new \InvalidArgumentException(
                'Validator context must be either an array or an instance
                of ' . WrapperInterface::class
            );
        }
        $this->context = $context;

        return $this;
    }

    /**
     * Custom message for this validator to used instead of the the default one
     *
     * @param string $messageTemplate
     *
     * @return AbstractRule
     */
    public function setMessageTemplate($messageTemplate)
    {
        $this->messageTemplate = $messageTemplate;

        return $this;
    }

    /**
     * Retrieves the error message template (either the global one or the custom message)
     *
     * @return string
     */
    public function getMessageTemplate(): string
    {
        if ($this->messageTemplate) {
            return $this->messageTemplate;
        }
        if (isset($this->options['label'])) {
            return constant(get_class($this) . '::LABELED_MESSAGE');
        }

        return constant(get_class($this) . '::MESSAGE');
    }

    /**
     * Validates a value
     *
     * @param mixed $value
     * @param null|mixed $valueIdentifier
     *
     * @return mixed
     */
    abstract public function validate($value, string $valueIdentifier = null);

    /**
     * Sets the error message prototype that will be used when returning the error message
     * when validation fails.
     * This option can be used when you need translation
     *
     * @param ErrorMessage $errorMessagePrototype
     *
     * @return AbstractRule
     * @throws \InvalidArgumentException
     */
    public function setErrorMessagePrototype(ErrorMessage $errorMessagePrototype)
    {
        $this->errorMessagePrototype = $errorMessagePrototype;

        return $this;
    }

    /**
     * Returns the error message prototype.
     * It constructs one if there isn't one.
     *
     * @return ErrorMessage
     */
    public function getErrorMessagePrototype()
    {
        if (! $this->errorMessagePrototype) {
            $this->errorMessagePrototype = new ErrorMessage();
        }

        return $this->errorMessagePrototype;
    }

    /**
     * Retrieve the error message if validation failed
     *
     * @return NULL|ErrorMessage
     */
    public function getMessage()
    {
        if ($this->success) {
            return null;
        }
        $message = $this->getPotentialMessage();
        $message->setVariables([
            'value' => $this->value
        ]);

        return $message;
    }

    /**
     * Retrieve the potential error message.
     * Example: when you do client-side validation you need to access the "potential error message" to be displayed
     *
     * @return ErrorMessage
     */
    public function getPotentialMessage()
    {
        $message = clone $this->getErrorMessagePrototype();
        $message->setTemplate($this->getMessageTemplate());
        $message->setVariables($this->options);

        return $message;
    }

    /**
     * Method for determining the path to a related item.
     * Eg: for `lines[5][price]` the related item `lines[*][quantity]`
     * has the value identifier as `lines[5][quantity]`
     *
     * @param $valueIdentifier
     * @param $relatedItem
     *
     * @return string|null
     */
    protected function getRelatedValueIdentifier($valueIdentifier, $relatedItem)
    {
        // in case we don't have a related path
        if (strpos($relatedItem, '*') === false) {
            return $relatedItem;
        }

        // lines[*][quantity] is converted to ['lines', '*', 'quantity']
        $relatedItemParts = explode('[', str_replace(']', '', $relatedItem));
        // lines[5][price] is ['lines', '5', 'price']
        $valueIdentifierParts = explode('[', str_replace(']', '', $valueIdentifier));

        if (count($relatedItemParts) !== count($valueIdentifierParts)) {
            return $relatedItem;
        }

        // the result should be ['lines', '5', 'quantity']
        $relatedValueIdentifierParts = [];
        foreach ($relatedItemParts as $index => $part) {
            if ($part === '*' && isset($valueIdentifierParts[$index])) {
                $relatedValueIdentifierParts[] = $valueIdentifierParts[$index];
            } else {
                $relatedValueIdentifierParts[] = $part;
            }
        }

        $relatedValueIdentifier = implode('][', $relatedValueIdentifierParts) . ']';
        $relatedValueIdentifier = str_replace(
            $relatedValueIdentifierParts[0] . ']',
            $relatedValueIdentifierParts[0],
            $relatedValueIdentifier
        );

        return $relatedValueIdentifier;
    }
}