Chubbyphp\Model\Reference\LazyModelReference

Complexity

Total Complexity

10

Size/Duplication

Total Lines	100
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	resolveModel()	0	13	2
A	setModel()	0	8	1
A	getModel()	0	6	1
A	getId()	0	10	2
A	getInitialModel()	0	6	1
A	jsonSerialize()	0	10	2

<?php

declare(strict_types=1);

namespace Chubbyphp\Model\Reference;

use Chubbyphp\Model\ModelInterface;

final class LazyModelReference implements ModelReferenceInterface
{
    /**
     * @var \Closure
     */
    private $resolver;

    /**
     * @var ModelInterface|null
     */
    private $initialModel;

    /**
     * @var ModelInterface|null
     */
    private $model;

    /**
     * @param \Closure $resolver
     */
    public function __construct(\Closure $resolver)
    {
        $this->resolver = $resolver;
    }

    private function resolveModel()
    {
        if (null === $this->resolver) {
            return;
        }

        $resolver = $this->resolver;

        $this->resolver = null;

        $this->model = $resolver();
        $this->initialModel = $this->model;
    }

    /**
     * @param ModelInterface|null $model
     * @return ModelReferenceInterface
     */
    public function setModel(ModelInterface $model = null): ModelReferenceInterface
    {
        $this->resolveModel();

        $this->model = $model;

        return $this;
    }

    /**
     * @return ModelInterface|null
     */
    public function getModel()
    {
        $this->resolveModel();

        return $this->model;
    }

    /**
     * @return null|string
     */
    public function getId()
    {
        $this->resolveModel();

        if (null === $this->model) {
            return null;
        }

        return $this->model->getId();
    }

    /**
     * @return ModelInterface|null
     */
    public function getInitialModel()
    {
        $this->resolveModel();

        return $this->initialModel;
    }

    /**
     * @return array|null
     */
    public function jsonSerialize()
    {
        $this->resolveModel();

        if (null === $this->model) {
            return null;
        }

        return $this->model->jsonSerialize();
    }
}