Gacela\Router\Validators\PathValidator

Complexity

Total Complexity

15

Size/Duplication

Total Lines	62
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	2
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	isValid()	0	11	3
A	hasEmptyParts()	0	11	3
A	hasValidFormat()	0	15	4
A	hasValidParameterOrder()	0	17	5

<?php

declare(strict_types=1);

namespace Gacela\Router\Validators;

use Gacela\Router\Entities\RouteParams;

final class PathValidator
{
    public static function isValid(string $path): bool
    {
        if ($path === '/') {
            return true;
        }

        if (!self::hasValidFormat($path)) {
            return false;
        }

        return self::hasValidParameterOrder($path);
    }

    private static function hasValidFormat(string $path): bool
    {
        if ($path === '') {
            return false;
        }

        if (str_starts_with($path, '/')) {
            return false;
        }

        if (str_ends_with($path, '/')) {
            return false;
        }

        return !self::hasEmptyParts($path);
    }

    private static function hasEmptyParts(string $path): bool
    {
        $parts = explode('/', $path);

        foreach ($parts as $part) {
            if (!$part) {
                return true;
            }
        }

        return false;
    }

    private static function hasValidParameterOrder(string $path): bool
    {
        $parts = explode('/', $path);
        $optionalParamFound = false;

        foreach ($parts as $part) {
            if (!$part) { // Empty part found
                return false;
            }
            if (preg_match(RouteParams::OPTIONAL_PARAM_PATTERN, $part)) { // Optional argument found
                $optionalParamFound = true;
            } elseif ($optionalParamFound) { // Mandatory argument or static part found after an optional argument
                return false;
            }
        }

        return true;
    }
}