improved maintainability

Author: Alexsey-VR

src/ConsoleApp.php

@@ -7,7 +7,6 @@ class ConsoleApp
     private CommandInterface $currentCommand;
     private CommandInterface $nextCommand;
     private CommandFactoryInterface $commandFactory;
-    private FileReaderInterface $fileReader;
 
     public function __construct(
         CommandFactoryInterface $commandFactory

src/DocoptDouble.php

@@ -17,7 +17,7 @@ public function __construct()
         ];
     }
 
-    public function handle(string $data, array $default)
+    public function handle()
     {
         return $this;
     }

src/FilesDiffCommand.php

@@ -83,13 +83,14 @@ function ($fileKey) use ($file1Content, $file2Content) {
                             array_key_exists($fileKey, $file1Content) &&
                             !strcmp($file1Content[$fileKey], $file2Content[$fileKey])
                         ) {
-                            return "    " . $fileKey . ": " . $this->normalizeData($file1Content[$fileKey]) . "\n";
+                            $result = "    " . $fileKey . ": " . $this->normalizeData($file1Content[$fileKey]) . "\n";
                         } elseif (array_key_exists($fileKey, $file1Content)) {
-                            return "  - " . $fileKey . ": " . $this->normalizeData($file1Content[$fileKey]) . "\n" .
+                            $result = "  - " . $fileKey . ": " . $this->normalizeData($file1Content[$fileKey]) . "\n" .
                                 "  + " . $fileKey . ": " . $this->normalizeData($file2Content[$fileKey]) . "\n";
                         } else {
-                            return "  + " . $fileKey . ": " . $this->normalizeData($file2Content[$fileKey]) . "\n";
+                            $result = "  + " . $fileKey . ": " . $this->normalizeData($file2Content[$fileKey]) . "\n";
                         }
+                        return $result;
                     } else {
                         return "  - " . $fileKey . ": " . $this->normalizeData($file1Content[$fileKey]) . "\n";
                     }