<?php

/**
 * Ensures there is a single space after a NOT operator.
 *
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
 */
namespace PHP_CodeSniffer\Standards\Generic\Sniffs\Formatting;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
use PHP_CodeSniffer\Util\Tokens;
class SpaceAfterNotSniff implements Sniff
{
    /**
     * A list of tokenizers this sniff supports.
     *
     * @var array
     */
    public $supportedTokenizers = ['PHP', 'JS'];
    /**
     * The number of spaces desired after the NOT operator.
     *
     * @var integer
     */
    public $spacing = 1;
    /**
     * Allow newlines instead of spaces.
     *
     * @var boolean
     */
    public $ignoreNewlines = \false;
    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register()
    {
        return [\T_BOOLEAN_NOT];
    }
    //end register()
    /**
     * Processes this test, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token in
     *                                               the stack passed in $tokens.
     *
     * @return void
     */
    public function process(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();
        $this->spacing = (int) $this->spacing;
        $pluralizeSpace = 's';
        if ($this->spacing === 1) {
            $pluralizeSpace = '';
        }
        $nextNonEmpty = $phpcsFile->findNext(Tokens::$emptyTokens, $stackPtr + 1, null, \true);
        if ($nextNonEmpty === \false) {
            return;
        }
        if ($this->ignoreNewlines === \true && $tokens[$stackPtr]['line'] !== $tokens[$nextNonEmpty]['line']) {
            return;
        }
        if ($this->spacing === 0 && $nextNonEmpty === $stackPtr + 1) {
            return;
        }
        $nextNonWhitespace = $phpcsFile->findNext(\T_WHITESPACE, $stackPtr + 1, null, \true);
        if ($nextNonEmpty !== $nextNonWhitespace) {
            $error = 'Expected %s space%s after NOT operator; comment found';
            $data = [$this->spacing, $pluralizeSpace];
            $phpcsFile->addError($error, $stackPtr, 'CommentFound', $data);
            return;
        }
        $found = 0;
        if ($tokens[$stackPtr]['line'] !== $tokens[$nextNonEmpty]['line']) {
            $found = 'newline';
        } else {
            if ($tokens[$stackPtr + 1]['code'] === \T_WHITESPACE) {
                $found = $tokens[$stackPtr + 1]['length'];
            }
        }
        if ($found === $this->spacing) {
            return;
        }
        $error = 'Expected %s space%s after NOT operator; %s found';
        $data = [$this->spacing, $pluralizeSpace, $found];
        $fix = $phpcsFile->addFixableError($error, $stackPtr, 'Incorrect', $data);
        if ($fix === \true) {
            $padding = \str_repeat(' ', $this->spacing);
            if ($found === 0) {
                $phpcsFile->fixer->addContent($stackPtr, $padding);
            } else {
                $phpcsFile->fixer->beginChangeset();
                $start = $stackPtr + 1;
                if ($this->spacing > 0) {
                    $phpcsFile->fixer->replaceToken($start, $padding);
                    ++$start;
                }
                for ($i = $start; $i < $nextNonWhitespace; $i++) {
                    $phpcsFile->fixer->replaceToken($i, '');
                }
                $phpcsFile->fixer->endChangeset();
            }
        }
    }
    //end process()
}
//end class
