Shoot\Shoot\PresentationModel

Complexity

Total Complexity

10

Size/Duplication

Total Lines	76
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	getName()	0	3	1
A	__construct()	0	3	1
A	setVariables()	0	5	3
A	getVariable()	0	3	1
A	getVariables()	0	3	1
A	variableExists()	0	7	2
A	withVariables()	0	6	1

<?php
declare(strict_types=1);

namespace Shoot\Shoot;

/**
 * Holds the variables available to a view.
 */
class PresentationModel
{
    /**
     * @param mixed[] $variables
     */
    final public function __construct(array $variables = [])
    {
        $this->setVariables($variables);
    }

    /**
     * @return string The name of the presentation model.
     */
    final public function getName(): string
    {
        return static::class;
    }

    /**
     * @param string $variable
     * @param mixed  $default
     *
     * @return mixed
     */
    final public function getVariable(string $variable, $default = null)
    {
        return $this->$variable ?? $default;
    }

    /**
     * @return mixed[]
     */
    final public function getVariables(): array
    {
        return get_object_vars($this);
    }

    /**
     * @param mixed[] $variables
     *
     * @return PresentationModel
     */
    final public function withVariables(array $variables): self
    {
        $new = clone $this;
        $new->setVariables($variables);

        return $new;
    }

    /**
     * @param mixed[] $variables
     *
     * @return void
     */
    private function setVariables(array $variables)
    {
        foreach ($variables as $variable => $value) {
            if ($this->variableExists($variable)) {
                $this->$variable = $value;
            }
        }
    }

    /**
     * @param string $variable
     *
     * @return bool
     */
    private function variableExists(string $variable): bool
    {
        if (static::class === self::class) {
            return true;
        }

        return property_exists($this, $variable);
    }
}