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<?php
/**
 * \DrupalPractice\Sniffs\Constants\GlobalDefineSniff
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */

namespace DrupalPractice\Sniffs\Constants;

use PHP_CodeSniffer\Files\File;
use Drupal\Sniffs\Semantics\FunctionCall;
use DrupalPractice\Project;

/**
 * Checks that global define() constants are not used in modules in Drupal 8.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */
class GlobalDefineSniff extends FunctionCall
{


    /**
     * Returns an array of function names this test wants to listen for.
     *
     * @return array
     */
    public function registerFunctionNames()
    {
        return array('define');

    }//end registerFunctionNames()


    /**
     * Processes this function call.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile    The file being scanned.
     * @param int                         $stackPtr     The position of the function call in
     *                                                  the stack.
     * @param int                         $openBracket  The position of the opening
     *                                                  parenthesis in the stack.
     * @param int                         $closeBracket The position of the closing
     *                                                  parenthesis in the stack.
     *
     * @return void
     */
    public function processFunctionCall(
        File $phpcsFile,
        $stackPtr,
        $openBracket,
        $closeBracket
    ) {
        $tokens = $phpcsFile->getTokens();

        // Only check constants in the global scope in module files.
        if (empty($tokens[$stackPtr]['conditions']) === false || substr($phpcsFile->getFilename(), -7) !== '.module') {
            return;
        }

        $coreVersion = Project::getCoreVersion($phpcsFile);
        if ($coreVersion !== '8.x') {
            return;
        }

        // Allow constants if they are deprecated.
        $commentEnd = $phpcsFile->findPrevious(T_WHITESPACE, ($stackPtr - 1), null, true);
        if ($commentEnd !== null && $tokens[$commentEnd]['code'] === T_DOC_COMMENT_CLOSE_TAG) {
            // Go through all comment tags and check if one is @deprecated.
            $commentTag = $commentEnd;
            while ($commentTag !== null && $commentTag > $tokens[$commentEnd]['comment_opener']) {
                if ($tokens[$commentTag]['content'] === '@deprecated') {
                    return;
                }

                $commentTag = $phpcsFile->findPrevious(T_DOC_COMMENT_TAG, ($commentTag - 1), $tokens[$commentEnd]['comment_opener']);
            }
        }

        $warning = 'Global constants should not be used, move it to a class or interface';
        $phpcsFile->addWarning($warning, $stackPtr, 'GlobalConstant');

    }//end processFunctionCall()


}//end class