Version\Comparator\SemverComparator

Complexity

Total Complexity

12

Size/Duplication

Total Lines	58
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	2

Test Coverage

Coverage

100%

Importance

Changes	2
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
C	compare()	0	28	7
B	compareMeta()	0	23	5

<?php

/**
 * This file is part of the Version package.
 *
 * Copyright (c) Nikola Posa <posa.nikola@gmail.com>
 *
 * For full copyright and license information, please refer to the LICENSE file,
 * located at the package root folder.
 */

namespace Version\Comparator;

use Version\Version;

/**
 * @author Nikola Posa <posa.nikola@gmail.com>
 */
final class SemverComparator implements ComparatorInterface
{
    /**
     * {@inheritDoc}
     */
    public function compare(Version $version1, Version $version2)
    {
        if ($version1->getMajor() > $version2->getMajor()) {
            return 1;
        }

        if ($version1->getMajor() < $version2->getMajor()) {
            return -1;
        }

        if ($version1->getMinor() > $version2->getMinor()) {
            return 1;
        }

        if ($version1->getMinor() < $version2->getMinor()) {
            return -1;
        }

        if ($version1->getPatch() > $version2->getPatch()) {
            return 1;
        }

        if ($version1->getPatch() < $version2->getPatch()) {
            return -1;
        }

        return $this->compareMeta($version1, $version2);
    }

    private function compareMeta(Version $version1, Version $version2)
    {
        $v1IsPreRelease = $version1->isPreRelease();
        $v2IsPreRelease = $version2->isPreRelease();

        if ($v1IsPreRelease xor $v2IsPreRelease) {
            return !$v1IsPreRelease
                ? 1 // normal version has greater precedence than a pre-release version version
                : -1; // pre-release version has lower precedence than a normal version
        }

        $result = $version1->getPreRelease()->compareTo($version2->getPreRelease());

        if ($result > 0) {
            return 1;
        }

        if ($result < 0) {
            return -1;
        }

        return 0;
    }
}