<?php
/**
 * PHP Version 5
 *
 * FHComplete
 */

/**
 * Checks that there is no empty line after the opening brace of a function.
 *
 */
class FHComplete_Sniffs_WhiteSpace_FunctionOpeningBraceSpaceSniff implements PHP_CodeSniffer_Sniff
{

    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array
     */
    public function register()
    {
        return array(T_FUNCTION);
    }

    /**
     * Processes this test, when one of its tokens is encountered.
     *
     * @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
     * @param integer $stackPtr  The position of the current token
     *   in the stack passed in $tokens.
     * @return void
     */
    public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();

        if (isset($tokens[$stackPtr]['scope_opener']) === false) {
            // Probably an interface method.
            return;
        }

        $openBrace = $tokens[$stackPtr]['scope_opener'];
        $nextContent = $phpcsFile->findNext(T_WHITESPACE, ($openBrace + 1), null, true);

        if ($nextContent === $tokens[$stackPtr]['scope_closer']) {
            // The next bit of content is the closing brace, so this
            // is an empty function and should have a blank line
            // between the opening and closing braces.
            return;
        }

        $braceLine = $tokens[$openBrace]['line'];
        $nextLine = $tokens[$nextContent]['line'];

        $found = ($nextLine - $braceLine - 1);
        if ($found > 0) {
            $error = 'Expected 0 blank lines after opening function brace; %s found';
            $data = array($found);
            $phpcsFile->addError($error, $openBrace, 'SpacingAfter', $data);
        }
    }
}
