From ddfd4c84269bd5c28aa5e5faafbe842f77cd2251 Mon Sep 17 00:00:00 2001
From: Tomas Votruba <tomas.vot@gmail.com>
Date: Sun, 2 Jun 2024 21:30:12 +0900
Subject: [PATCH] add readme render

---
 composer.json                   | 16 ++++++------
 src/Command/GenerateCommand.php | 44 +++++++++++++++++++++++++++++++--
 src/ValueObject/Option.php      |  5 ++++
 3 files changed, 55 insertions(+), 10 deletions(-)

diff --git a/composer.json b/composer.json
index 6dba39c..9827d43 100644
--- a/composer.json
+++ b/composer.json
@@ -8,20 +8,20 @@
     "require": {
         "php": ">=8.2",
         "symfony/console": "^6.4",
-        "nette/robot-loader": "^3.4|^4.0",
+        "nette/robot-loader": "^4.0",
         "symplify/rule-doc-generator-contracts": "^11.1",
-        "nette/utils": "^3.2|^4.0",
-        "sebastian/diff": "^5.1|^6.0",
-        "illuminate/container": "^10.39|^11.0",
+        "nette/utils": "^4.0",
+        "sebastian/diff": "^6.0",
+        "illuminate/container": "^11.0",
         "webmozart/assert": "^1.11",
-        "symfony/yaml": "^6.4",
-        "symfony/filesystem": "^6.4"
+        "symfony/yaml": "^7.0",
+        "symfony/filesystem": "^7.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^11.0",
-        "phpstan/phpstan": "^1.10.56",
+        "phpstan/phpstan": "^1.11",
         "symplify/easy-coding-standard": "^12.0",
-        "rector/rector": "dev-main",
+        "rector/rector": "^1.1",
         "tracy/tracy": "^2.10",
         "tomasvotruba/class-leak": "^0.2"
     },
diff --git a/src/Command/GenerateCommand.php b/src/Command/GenerateCommand.php
index 75a6184..a34d087 100644
--- a/src/Command/GenerateCommand.php
+++ b/src/Command/GenerateCommand.php
@@ -13,9 +13,20 @@
 use Symfony\Component\Console\Style\SymfonyStyle;
 use Symplify\RuleDocGenerator\DirectoryToMarkdownPrinter;
 use Symplify\RuleDocGenerator\ValueObject\Option;
+use Webmozart\Assert\Assert;
 
 final class GenerateCommand extends Command
 {
+    /**
+     * @var string
+     */
+    private const README_PLACEHOLDER_START = '<!-- ruledoc-start -->';
+
+    /**
+     * @var string
+     */
+    private const README_PLACEHOLDER_END = '<!-- ruledoc-end -->';
+
     public function __construct(
         private readonly DirectoryToMarkdownPrinter $directoryToMarkdownPrinter,
         private readonly SymfonyStyle $symfonyStyle,
@@ -45,6 +56,7 @@ protected function configure(): void
 
         $this->addOption(Option::CATEGORIZE, null, InputOption::VALUE_REQUIRED, 'Group rules by namespace position');
         $this->addOption(Option::SKIP_TYPE, null, InputOption::VALUE_REQUIRED, 'Skip specific type in filter');
+        $this->addOption(Option::README, null, InputOption::VALUE_REQUIRED, 'Render contents to README using placeholders');
     }
 
     protected function execute(InputInterface $input, OutputInterface $output): int
@@ -74,10 +86,38 @@ protected function execute(InputInterface $input, OutputInterface $output): int
             $skipTypes
         );
 
-        FileSystem::write($outputFilePath, $markdownFileContent);
+        $isReadme = (bool) $input->getOption(Option::README);
 
-        $this->symfonyStyle->success(sprintf('File "%s" was created', $outputFilePath));
+        if ($isReadme) {
+            $this->renderToReadme($markdownFileContent);
+        } else {
+            FileSystem::write($outputFilePath, $markdownFileContent);
+            $this->symfonyStyle->success(\sprintf('File "%s" was created', $outputFilePath));
+        }
 
         return self::SUCCESS;
     }
+
+    private function renderToReadme(string $markdownFileContent): void
+    {
+        $readmeFilepath = getcwd() . '/README.md';
+        Assert::fileExists($readmeFilepath);
+
+        $readmeContents = FileSystem::read($readmeFilepath);
+
+        Assert::contains($readmeContents, self::README_PLACEHOLDER_START);
+        Assert::contains($readmeContents, self::README_PLACEHOLDER_END);
+
+        /** @var string $readmeContents */
+        $readmeContents = preg_replace(
+            '#' . preg_quote(self::README_PLACEHOLDER_START, '#') . '(.*?)' .
+                preg_quote(self::README_PLACEHOLDER_END, '#') . '#s',
+            self::README_PLACEHOLDER_START . PHP_EOL . $markdownFileContent . PHP_EOL . self::README_PLACEHOLDER_END,
+            $readmeContents
+        );
+
+        FileSystem::write($readmeFilepath, $readmeContents);
+        $this->symfonyStyle->success('README.md was updated');
+        $this->symfonyStyle->newLine();
+    }
 }
diff --git a/src/ValueObject/Option.php b/src/ValueObject/Option.php
index 99cf134..37b943d 100644
--- a/src/ValueObject/Option.php
+++ b/src/ValueObject/Option.php
@@ -25,4 +25,9 @@ final class Option
      * @var string
      */
     public const SKIP_TYPE = 'skip-type';
+
+    /**
+     * @var string
+     */
+    public const README = 'readme';
 }