add fileeditor

src/AnalyzeComments/File/FileEditor.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace SavinMikhail\CommentsDensity\AnalyzeComments\File;
+
+use PhpToken;
+use SavinMikhail\CommentsDensity\AnalyzeComments\Analyzer\DTO\Output\CommentDTO;
+use SavinMikhail\CommentsDensity\AnalyzeComments\Exception\CommentsDensityException;
+
+final readonly class FileEditor
+{
+    public function updateCommentInFile(CommentDTO $comment): void
+    {
+        $fileContent = file_get_contents($comment->file);
+        $tokens = PhpToken::tokenize($fileContent);
+        $changed = false;
+        foreach ($tokens as $token) {
+            if ($token->line !== $comment->line) {
+                continue;
+            }
+            if (!$token->is([T_COMMENT, T_DOC_COMMENT])) {
+                continue;
+            }
+            $token->text = $comment->content;
+            $changed = true;
+        }
+        if (!$changed) {
+            return;
+        }
+        $this->save($comment->file, $tokens);
+    }
+
+    /**
+     * @param PhpToken[] $tokens
+     * @throws CommentsDensityException
+     */
+    private function save(string $file, array $tokens): void
+    {
+        $content = implode('', array_map(static fn(PhpToken $token) => $token->text, $tokens));
+        $res = file_put_contents($file, $content);
+        if ($res === false) {
+            throw new CommentsDensityException('failed to write to file: ' . $file);
+        }
+    }
+}

src/Plugin/PluginInterface.php

@@ -7,6 +7,9 @@
 use SavinMikhail\CommentsDensity\AnalyzeComments\Analyzer\DTO\Output\Report;
 use SavinMikhail\CommentsDensity\AnalyzeComments\Config\DTO\Config;
 
+/**
+ * @see FileEditor to remove/update comments
+ */
 interface PluginInterface
 {
     public function handle(Report $report, Config $config): void;