Larapie\DataTransferObject\DataTransferObject

Complexity

Total Complexity

58

Size/Duplication

Total Lines	234
Duplicated Lines	0 %

Importance

Changes

0

17 Methods

Rating	Name	Duplication	Size	Complexity
A	all()	0	10	3
A	boot()	0	6	2
A	determineImmutability()	0	6	3
A	chainPropertyImmutable()	0	9	5
A	__get()	0	3	1
A	__construct()	0	3	1
A	__set()	0	13	4
A	only()	0	5	1
A	isImmutable()	0	3	1
A	toArray()	0	16	6
A	parseArray()	0	20	5
A	except()	0	12	4
A	setImmutable()	0	6	3
A	throwValidationException()	0	17	6
A	validate()	0	12	5
A	with()	0	6	2
A	override()	0	19	6

<?php

declare(strict_types=1);

namespace Larapie\DataTransferObject;

use Larapie\DataTransferObject\Contracts\AutomaticValidation;
use Larapie\DataTransferObject\Exceptions\ValidatorException;
use Larapie\DataTransferObject\Factories\PropertyFactory;
use Larapie\DataTransferObject\Violations\PropertyRequiredViolation;
use Larapie\DataTransferObject\Contracts\DtoContract;
use Larapie\DataTransferObject\Exceptions\ImmutableDtoException;
use Larapie\DataTransferObject\Exceptions\PropertyNotFoundDtoException;
use Larapie\DataTransferObject\Exceptions\ImmutablePropertyDtoException;
use Larapie\DataTransferObject\Exceptions\PropertyAlreadyExistsException;

/**
 * Class DataTransferObject.
 */
abstract class DataTransferObject implements DtoContract
{

    /** @var array */
    protected $onlyKeys = [];

    /** @var array */
    protected $with = [];

    /** @var Property[] */
    protected $properties = [];

    /** @var bool */
    protected $immutable = false;


    public function __construct(array $parameters)
    {
        $this->boot($parameters);
    }

    /**
     * Boot the dto and process all parameters.
     * @param array $parameters
     * @throws \ReflectionException
     */
    protected function boot(array $parameters): void
    {
        $this->properties = (new PropertyFactory($this))->build($parameters);
        $this->determineImmutability();
        if($this instanceof AutomaticValidation)
            $this->validate();
    }

    protected function determineImmutability()
    {
        /* If the dto itself is not immutable but some properties are chain them immutable  */
        foreach ($this->properties as $property) {
            if ($property->isImmutable()) {
                $this->chainPropertyImmutable($property);
            }
        }
    }

    protected function setImmutable(): void
    {
        if (!$this->isImmutable()) {
            $this->immutable = true;
            foreach ($this->properties as $property) {
                $this->chainPropertyImmutable($property);
            }
        }
    }

    protected function chainPropertyImmutable(Property $property)
    {
        $dto = $property->getValue();
        if ($dto instanceof DataTransferObject) {
            $dto->setImmutable();
        } elseif (is_iterable($dto)) {
            foreach ($dto as $aPotentialDto) {
                if ($aPotentialDto instanceof DataTransferObject) {
                    $aPotentialDto->setImmutable();
                }
            }
        }
    }


    /**
     * Immutable behavior
     * Throw error if a user tries to set a property.
     * @param $name
     * @param $value
     * @throws ImmutableDtoException|ImmutablePropertyDtoException|PropertyNotFoundDtoException
     */
    public function __set($name, $value)
    {
        if ($this->immutable) {
            throw new ImmutableDtoException($name);
        }
        if (!isset($this->properties[$name])) {
            throw new PropertyNotFoundDtoException($name, get_class($this));
        }

        if ($this->properties[$name]->isImmutable()) {
            throw new ImmutablePropertyDtoException($name);
        }
        $this->$name = $value;
    }

    public function &__get($name)
    {
        return $this->properties[$name]->value;
    }

    public function isImmutable(): bool
    {
        return $this->immutable;
    }

    public function all(): array
    {
        $data = [];

        foreach ($this->properties as $property) {
            $value = $property->getValue();
            $data[$property->getName()] = $value instanceof DtoContract ? $value->toArray() : $value;
        }

        return array_merge($data, $this->with);
    }

    public function only(string ...$keys): DtoContract
    {
        $this->onlyKeys = array_merge($this->onlyKeys, $keys);

        return $this;
    }

    public function except(string ...$keys): DtoContract
    {
        foreach ($keys as $key) {
            if (array_key_exists($key, $this->with)) {
                unset($this->with[$key]);
            }
            $property = $this->properties[$key] ?? null;
            if (isset($property)) {
                $property->setVisible(false);
            }
        }
        return $this;
    }

    public function with(string $key, $value): DtoContract
    {
        if (array_key_exists($key, $this->properties)) {
            throw new PropertyAlreadyExistsException($key);
        }
        return $this->override($key, $value);
    }

    public function override(string $key, $value): DtoContract
    {
        if ($this->isImmutable()) {
            throw new ImmutableDtoException($key);
        }
        if (($propertyExists = array_key_exists($key, $this->properties) && $this->properties[$key]->isImmutable())) {
            throw new ImmutablePropertyDtoException($key);
        }

        if ($propertyExists) {

The condition $propertyExists is always false.

            $property = $this->properties[$key];
            $property->set($value);
            if ($this instanceof AutomaticValidation)
                $this->validate();
        } else {
            $this->with[$key] = $value;
        }

        return $this;
    }

    public function toArray(): array
    {
        $data = $this->all();
        $array = [];

        if (count($this->onlyKeys)) {
            $array = array_intersect_key($data, array_flip((array)$this->onlyKeys));
        } else {
            foreach ($data as $key => $propertyValue) {
                if (array_key_exists($key, $this->properties) && $this->properties[$key]->isVisible() && $this->properties[$key]->isInitialized()) {
                    $array[$key] = $propertyValue;
                }
            }
        }

        return $this->parseArray($array);
    }

    protected function parseArray(array $array): array
    {
        foreach ($array as $key => $value) {
            if (
                $value instanceof DataTransferObject
                || $value instanceof DataTransferObjectCollection
            ) {
                $array[$key] = $value->toArray();

                continue;
            }

            if (!is_array($value)) {
                continue;
            }

            $array[$key] = $this->parseArray($value);
        }

        return $array;
    }

    public function throwValidationException()
    {
        $violations = [];
        foreach ($this->properties as $propertyName => $property) {
            $violationList = $property->getViolations();

            if ($violationList === null || $violationList->count() <= 0)
                continue;
            foreach ($violationList as $violation) {
                if ($violation instanceof PropertyRequiredViolation) {
                    $violations[$propertyName] = [$violation];
                    break;
                }
                $violations[$propertyName][] = $violation;
            }
        }
        throw new ValidatorException($violations);
    }

    public function validate()
    {
        $violations = [];
        foreach ($this->properties as $name => $property) {
            $violationList = $property->getViolations();
            if ($violationList === null || $violationList->count() <= 0)
                continue;
            $violations[$name] = $violationList;
        }

        if (!empty($violations))
            throw new ValidatorException($violations);

    }
}