<?php

namespace CustomSniffs\Sniffs;

use PHP_CodeSniffer\Sniffs\Sniff;
use PHP_CodeSniffer\Files\File;

/**
 * Custom sniff to check if the namespace matches the directory structure.
 */
class NamespaceSniff implements Sniff
{
    public function register()
    {
        return [T_NAMESPACE];
    }

    public function process(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();
        $namespace = $this->getNamespace($phpcsFile, $stackPtr);

        // Get the file path relative to the project root
        $filePath = $phpcsFile->getFilename();
        $projectRoot = '/var/www/html/google_forms/'; // Adjust this path as necessary
        $relativePath = str_replace([$projectRoot, '.php'], '', $filePath);

        // Convert the file path to a namespace-like format
        $expectedNamespace = str_replace('/', '\\', $relativePath);

        // Compare the file path with the namespace
        if ($namespace !== $expectedNamespace) {
            $error = sprintf(
                'Namespace "%s" does not match file path. Expected namespace: "%s"',
                $namespace,
                $expectedNamespace
            );
            $phpcsFile->addError($error, $stackPtr, 'InvalidNamespace');
        }
    }

    private function getNamespace(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();
        $namespace = '';

        for ($i = $stackPtr + 2; $i < $phpcsFile->numTokens; $i++) {
            $namespace .= $tokens[$i]['content'];

            if ($tokens[$i]['code'] === T_SEMICOLON) {
                break;
            }
        }

        return trim($namespace);
    }
}