refactor(#664): improve readability

cli/src/main/java/dev/fitko/fitconnect/cli/keygen/KeyWriter.java

@@ -63,25 +63,13 @@ public final class KeyWriter {
 
     private void writeConfigYamlToFile(final String dir) {
 
-        final Map<String, Object> data = new LinkedHashMap<>();
-        data.put("senderConfig",
-                Map.of("clientSecret", "",
-                        "clientId", ""));
-        data.put("subscriberConfig",
-                Map.of("clientSecret", "",
-                        "clientId", "",
-                        "privateDecryptionKeyPaths", List.of(Path.of(dir, PRIVATE_DECRYPTION_KEY_NAME).toAbsolutePath().toString()),
-                        "privateSigningKeyPath", Path.of(dir,PRIVATE_SIGNING_KEY_NAME).toAbsolutePath().toString()));
-        data.put("activeEnvironment",  DefaultEnvironments.TEST.getEnvironmentName().getName());
-
         final DumperOptions options = new DumperOptions();
         options.setDefaultScalarStyle(DumperOptions.ScalarStyle.PLAIN);
         options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
         options.setPrettyFlow(true);
 
         final StringWriter writer = new StringWriter();
-        final Yaml yaml = new Yaml(options);
-        yaml.dump(data, writer);
+        new Yaml(options).dump(getConfigMap(dir), writer);
         writer.flush();
 
         writeFile(Path.of(dir, "config.yml"), writer.toString());
@@ -89,6 +77,20 @@ public final class KeyWriter {
         LOGGER.info("Wrote config.yml");
     }
 
+    private static Map<String, Object> getConfigMap(final String dir) {
+        final Map<String, Object> data = new LinkedHashMap<>();
+        data.put("senderConfig",
+                Map.of("clientSecret", "",
+                        "clientId", ""));
+        data.put("subscriberConfig",
+                Map.of("clientSecret", "",
+                        "clientId", "",
+                        "privateDecryptionKeyPaths", List.of(Path.of(dir, PRIVATE_DECRYPTION_KEY_NAME).toAbsolutePath().toString()),
+                        "privateSigningKeyPath", Path.of(dir,PRIVATE_SIGNING_KEY_NAME).toAbsolutePath().toString()));
+        data.put("activeEnvironment",  DefaultEnvironments.TEST.getEnvironmentName().getName());
+        return data;
+    }
+
     private void writeKeyToFile(final String dir, final String filename, final String desc, final JWK jwk) {
         writeFile(Path.of(dir, filename), jwk.toJSONString());
         LOGGER.info("Wrote {} as {}", desc, filename);