class SemicolonSpacingSniff

class SemicolonSpacingSniff implements Sniff {
    
    /**
     * A list of tokenizers this sniff supports.
     *
     * @var array
     */
    public $supportedTokenizers = [
        'CSS',
    ];
    
    /**
     * Returns the token types that this sniff is interested in.
     *
     * @return array<int|string>
     */
    public function register() {
        return [
            T_STYLE,
        ];
    }
    
    //end register()
    
    /**
     * Processes the tokens that this sniff is interested in.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file where the token was found.
     * @param int                         $stackPtr  The position in the stack where
     *                                               the token was found.
     *
     * @return void
     */
    public function process(File $phpcsFile, $stackPtr) {
        $tokens = $phpcsFile->getTokens();
        $nextStatement = $phpcsFile->findNext([
            T_STYLE,
            T_CLOSE_CURLY_BRACKET,
        ], $stackPtr + 1);
        if ($nextStatement === false) {
            return;
        }
        $ignore = Tokens::$emptyTokens;
        if ($tokens[$nextStatement]['code'] === T_STYLE) {
            // Allow for star-prefix hack.
            $ignore[] = T_MULTIPLY;
        }
        $endOfThisStatement = $phpcsFile->findPrevious($ignore, $nextStatement - 1, null, true);
        if ($tokens[$endOfThisStatement]['code'] !== T_SEMICOLON) {
            $error = 'Style definitions must end with a semicolon';
            $phpcsFile->addError($error, $endOfThisStatement, 'NotAtEnd');
            return;
        }
        if ($tokens[$endOfThisStatement - 1]['code'] !== T_WHITESPACE) {
            return;
        }
        // There is a semicolon, so now find the last token in the statement.
        $prevNonEmpty = $phpcsFile->findPrevious(Tokens::$emptyTokens, $endOfThisStatement - 1, null, true);
        $found = $tokens[$endOfThisStatement - 1]['length'];
        if ($tokens[$prevNonEmpty]['line'] !== $tokens[$endOfThisStatement]['line']) {
            $found = 'newline';
        }
        $error = 'Expected 0 spaces before semicolon in style definition; %s found';
        $data = [
            $found,
        ];
        $fix = $phpcsFile->addFixableError($error, $prevNonEmpty, 'SpaceFound', $data);
        if ($fix === true) {
            $phpcsFile->fixer
                ->beginChangeset();
            $phpcsFile->fixer
                ->addContent($prevNonEmpty, ';');
            $phpcsFile->fixer
                ->replaceToken($endOfThisStatement, '');
            for ($i = $endOfThisStatement - 1; $i > $prevNonEmpty; $i--) {
                if ($tokens[$i]['code'] !== T_WHITESPACE) {
                    break;
                }
                $phpcsFile->fixer
                    ->replaceToken($i, '');
            }
            $phpcsFile->fixer
                ->endChangeset();
        }
    }
    
    //end process()

}