class LogicalOperatorSpacingSniff

class LogicalOperatorSpacingSniff implements Sniff {
    
    /**
     * A list of tokenizers this sniff supports.
     *
     * @var array
     */
    public $supportedTokenizers = [
        'PHP',
        'JS',
    ];
    
    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register() {
        return Tokens::$booleanOperators;
    }
    
    //end register()
    
    /**
     * Processes this sniff, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The current file being checked.
     * @param int                         $stackPtr  The position of the current token
     *                                               in the stack passed in $tokens.
     *
     * @return void
     */
    public function process(File $phpcsFile, $stackPtr) {
        $tokens = $phpcsFile->getTokens();
        // Check there is one space before the operator.
        if ($tokens[$stackPtr - 1]['code'] !== T_WHITESPACE) {
            $error = 'Expected 1 space before logical operator; 0 found';
            $fix = $phpcsFile->addFixableError($error, $stackPtr, 'NoSpaceBefore');
            if ($fix === true) {
                $phpcsFile->fixer
                    ->addContentBefore($stackPtr, ' ');
            }
        }
        else {
            $prev = $phpcsFile->findPrevious(T_WHITESPACE, $stackPtr - 1, null, true);
            if ($tokens[$stackPtr]['line'] === $tokens[$prev]['line'] && $tokens[$stackPtr - 1]['length'] !== 1) {
                $found = $tokens[$stackPtr - 1]['length'];
                $error = 'Expected 1 space before logical operator; %s found';
                $data = [
                    $found,
                ];
                $fix = $phpcsFile->addFixableError($error, $stackPtr, 'TooMuchSpaceBefore', $data);
                if ($fix === true) {
                    $phpcsFile->fixer
                        ->replaceToken($stackPtr - 1, ' ');
                }
            }
        }
        // Check there is one space after the operator.
        if ($tokens[$stackPtr + 1]['code'] !== T_WHITESPACE) {
            $error = 'Expected 1 space after logical operator; 0 found';
            $fix = $phpcsFile->addFixableError($error, $stackPtr, 'NoSpaceAfter');
            if ($fix === true) {
                $phpcsFile->fixer
                    ->addContent($stackPtr, ' ');
            }
        }
        else {
            $next = $phpcsFile->findNext(T_WHITESPACE, $stackPtr + 1, null, true);
            if ($tokens[$stackPtr]['line'] === $tokens[$next]['line'] && $tokens[$stackPtr + 1]['length'] !== 1) {
                $found = $tokens[$stackPtr + 1]['length'];
                $error = 'Expected 1 space after logical operator; %s found';
                $data = [
                    $found,
                ];
                $fix = $phpcsFile->addFixableError($error, $stackPtr, 'TooMuchSpaceAfter', $data);
                if ($fix === true) {
                    $phpcsFile->fixer
                        ->replaceToken($stackPtr + 1, ' ');
                }
            }
        }
    }
    
    //end process()

}