List traefik urls

config/services.yml

@@ -79,3 +79,8 @@ services:
     public: true
 
   my127\Workspace\Path\Path: '@my127\Workspace\Path\Composite'
+
+  my127\Workspace\File\FileLoader\FileGetContentsLoader: ~
+  my127\Workspace\File\FileLoader:
+    alias: 'my127\Workspace\File\FileLoader\FileGetContentsLoader'
+

src/File/ArrayLoader.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace my127\Workspace\File;
+
+interface ArrayLoader
+{
+    public function loadArray(string $url): array;
+}

src/File/FileLoader.php

@@ -2,19 +2,7 @@
 
 namespace my127\Workspace\File;
 
-use function file_get_contents;
-use my127\Workspace\File\Exception\CouldNotLoadFile;
-
-final class FileLoader
+interface FileLoader
 {
-    public function load(string $url): string
-    {
-        $contents = @file_get_contents($url);
-
-        if ($contents === false) {
-            throw new CouldNotLoadFile(sprintf('Could not load file at "%s"', $url));
-        }
-
-        return $contents;
-    }
+    public function load(string $url): string;
 }

src/File/FileLoader/FileGetContentsLoader.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace my127\Workspace\File\FileLoader;
+
+use function file_get_contents;
+use my127\Workspace\File\Exception\CouldNotLoadFile;
+use my127\Workspace\File\FileLoader;
+
+final class FileGetContentsLoader implements FileLoader
+{
+    public function load(string $url): string
+    {
+        $contents = @file_get_contents($url);
+
+        if ($contents === false) {
+            throw new CouldNotLoadFile(sprintf('Could not load file at "%s"', $url));
+        }
+
+        return $contents;
+    }
+}

src/File/FileLoader/TestFileLoader.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace my127\Workspace\File\FileLoader;
+
+use my127\Workspace\File\FileLoader;
+
+class TestFileLoader implements FileLoader
+{
+    /**
+     * @var string
+     */
+    private $contents;
+
+    public function __construct(string $contents)
+    {
+        $this->contents = $contents;
+    }
+
+    public function load(string $url): string
+    {
+        return $this->contents;
+    }
+}

src/Plugin/TraefikEndpoints/TraefikEndpointProvider.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace my127\Workspace\Plugin\TraefikEndpoints;
+
+use my127\Workspace\File\JsonLoader;
+
+class TraefikEndpointProvider
+{
+    public const TRAEFIK_BASE_URL = 'https://my127.site';
+
+    /**
+     * @var JsonLoader
+     */
+    private $loader;
+
+    public function __construct(JsonLoader $loader)
+    {
+        $this->loader = $loader;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function links(): array
+    {
+        $providers = $this->loader->loadArray(sprintf(
+            '%s/api/providers',
+            self::TRAEFIK_BASE_URL
+        ));
+
+        $links = [];
+        foreach ($providers['docker']['frontends'] as $frontend) {
+            foreach ($frontend['routes'] as $route) {
+                foreach (explode(',', $route['rule']) as $host) {
+                    $links[] = sprintf('https://%s', preg_replace('{^Host:(.*)$}', '\1', $host));
+                }
+            }
+        }
+
+        return $links;
+    }
+}

src/Plugin/TraefikEndpoints/TraefikEndpointsPlugin.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace my127\Workspace\Plugin\TraefikEndpoints;
+
+use Closure;
+use my127\Console\Application\Application;
+use my127\Console\Application\Plugin\Plugin;
+use my127\Console\Usage\Input;
+use Symfony\Component\Console\Output\ConsoleOutput;
+
+class TraefikEndpointsPlugin implements Plugin
+{
+    /**
+     * @var TraefikEndpointProvider
+     */
+    private $provider;
+
+    /**
+     * @var ConsoleOutput
+     */
+    private $output;
+
+    public function __construct(TraefikEndpointProvider $provider, ConsoleOutput $output)
+    {
+        $this->provider = $provider;
+        $this->output = $output;
+    }
+
+    public function setup(Application $application): void
+    {
+        $application->section('traefik urls')
+            ->description('List the Traefik endpoints')
+            ->action($this->action());
+    }
+
+    /**
+     * @return Closure(): <missing>
+     */
+    private function action(): Closure
+    {
+        return function (Input $args) {
+            foreach ($this->provider->links() as $link) {
+                $this->output->writeln($link);
+            }
+        };
+    }
+}

tests/Test/File/FileLoaderTest.php → tests/Test/File/FileLoader/FileGetContentsLoaderTest.php

@@ -1,12 +1,12 @@
 <?php
 
-namespace my127\Workspace\Tests\Unit\File;
+namespace my127\Workspace\Tests\Test\File\FileLoader;
 
 use my127\Workspace\File\Exception\CouldNotLoadFile;
-use my127\Workspace\File\FileLoader;
+use my127\Workspace\File\FileLoader\FileGetContentsLoader;
 use my127\Workspace\Tests\IntegrationTestCase;
 
-class FileLoaderTest extends IntegrationTestCase
+class FileGetContentsLoaderTest extends IntegrationTestCase
 {
     /** @test */
     public function testItLoadsFile(): void
@@ -24,6 +24,6 @@ public function testThrowsAnExceptionIfTheFileCannotBeLoaded(): void
 
     private function load(string $url): string
     {
-        return (new FileLoader())->load($url);
+        return (new FileGetContentsLoader())->load($url);
     }
 }

tests/Test/File/JsonLoaderTest.php

@@ -3,7 +3,7 @@
 namespace my127\Workspace\Tests\Test\File;
 
 use my127\Workspace\File\Exception\CouldNotDecodeJson;
-use my127\Workspace\File\FileLoader;
+use my127\Workspace\File\FileLoader\FileGetContentsLoader;
 use my127\Workspace\File\JsonLoader;
 use my127\Workspace\Tests\IntegrationTestCase;
 
@@ -26,6 +26,6 @@ public function testItThrowsAnExceptionIfTheJsonCannotBeDecoded(): void
 
     private function load(string $url): array
     {
-        return (new JsonLoader(new FileLoader()))->loadArray($url);
+        return (new JsonLoader(new FileGetContentsLoader()))->loadArray($url);
     }
 }

tests/Test/Plugin/TraefikEndpoints/TraefikEndpointProviderTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace my127\Workspace\Tests\Test\Plugin\TraefikEndpoints;
+
+use my127\Workspace\File\FileLoader\TestFileLoader;
+use my127\Workspace\File\JsonLoader;
+use my127\Workspace\Plugin\TraefikEndpoints\TraefikEndpointProvider;
+use PHPUnit\Framework\TestCase;
+
+class TraefikEndpointProviderTest extends TestCase
+{
+    public function testListEndpoints(): void
+    {
+        $loader = new JsonLoader(new TestFileLoader((string) file_get_contents(__DIR__ . '/fixture/traefik-providers.json')));
+        self::assertEquals([
+            'https://kafka-ui.projectx-notify',
+            'https://kafka.projectx-ecomm',
+            'https://mail.my127.site',
+            'https://my127.site',
+            'https://search-project.my127.site',
+            'https://projectx-ecomm.my127.site',
+            'https://hub-project.my127.site',
+            'https://a1-project.my127.site',
+            'https://a2-project.my127.site',
+            'https://projectx-example.my127.site',
+            'https://zookeeper.projectx-ecomm',
+        ], (new TraefikEndpointProvider($loader))->links());
+    }
+}