<?php
namespace PharIo\CSFixer;

use PhpCsFixer\Fixer\FixerInterface;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\Tokenizer\Tokens;
use PhpCsFixer\Tokenizer\Token;

/**
 * Main implementation taken from kubawerlos/php-cs-fixer-customere-fixers
 * Copyright (c) 2018 Kuba Werłos
 *
 * Slightly modified to work without the gazillion of composer dependencies
 *
 * Original:
 * https://github.com/kubawerlos/php-cs-fixer-custom-fixers/blob/master/src/Fixer/PhpdocSingleLineVarFixer.php
 *
 */
class PhpdocSingleLineVarFixer implements FixerInterface {

    public function getDefinition(): FixerDefinitionInterface {
        return new FixerDefinition(
            '`@var` annotation must be in single line when is the only content.',
            [new CodeSample('<?php
                    /**
                     * @var string
                     */
                ')]
        );
    }

    public function isCandidate(Tokens $tokens): bool {
        return $tokens->isTokenKindFound(T_DOC_COMMENT);
    }

    public function isRisky(): bool {
        return false;
    }

    public function fix(\SplFileInfo $file, Tokens $tokens): void {
        foreach($tokens as $index => $token) {
            if (!$token->isGivenKind(T_DOC_COMMENT)) {
                continue;
            }
            if (\stripos($token->getContent(), '@var') === false) {
                continue;
            }

            if (preg_match('#^/\*\*[\s\*]+(@var[^\r\n]+)[\s\*]*\*\/$#u', $token->getContent(), $matches) !== 1) {
                continue;
            }
            $newContent = '/** ' . \rtrim($matches[1]) . ' */';
            if ($newContent === $token->getContent()) {
                continue;
            }
            $tokens[$index] = new Token([T_DOC_COMMENT, $newContent]);
        }
    }

    public function getPriority(): int {
        return 0;
    }

    public function getName(): string {
        return 'PharIo/phpdoc_single_line_var_fixer';
    }

    public function supports(\SplFileInfo $file): bool {
        return true;
    }

}
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Copyright (c) 2017 Arne Blankerts <arne@blankerts.de> and contributors
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.

* Neither the name of Arne Blankerts nor the names of contributors
  may be used to endorse or promote products derived from this software
  without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT  * NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
