fix p57

src/Config/RetriexEffectiveConfigProvider.php

@@ -1179,6 +1179,18 @@ final readonly class RetriexEffectiveConfigProvider
             }
         }
 
+        foreach ($this->collectGenreConfigurationValueSourcePaths($configurationValues) as $valuePath => $sourcePaths) {
+            foreach ($sourcePaths as $sourcePath) {
+                if (!isset($flattened[$sourcePath])) {
+                    $warnings[] = sprintf(
+                        'genre.configuration_values.%s references unknown source path: %s.',
+                        $valuePath,
+                        $sourcePath
+                    );
+                }
+            }
+        }
+
         foreach (array_keys($surface) as $group) {
             if (!is_string($group) || $group === '') {
                 continue;
@@ -1190,6 +1202,54 @@ final readonly class RetriexEffectiveConfigProvider
         }
     }
 
+
+    /**
+     * @param array<string, mixed> $configurationValues
+     * @return array<string, string[]>
+     */
+    private function collectGenreConfigurationValueSourcePaths(array $configurationValues): array
+    {
+        $out = [];
+        $this->collectGenreSourcePathsRecursive($configurationValues, '', $out);
+
+        return $out;
+    }
+
+    /**
+     * @param array<int|string, mixed> $value
+     * @param array<string, string[]> $out
+     */
+    private function collectGenreSourcePathsRecursive(array $value, string $path, array &$out): void
+    {
+        $sourcePaths = $value['source_paths'] ?? null;
+        if (is_array($sourcePaths)) {
+            $clean = [];
+            foreach ($sourcePaths as $sourcePath) {
+                if (!is_string($sourcePath) || trim($sourcePath) === '') {
+                    continue;
+                }
+
+                $sourcePath = trim($sourcePath);
+                if (!in_array($sourcePath, $clean, true)) {
+                    $clean[] = $sourcePath;
+                }
+            }
+
+            if ($clean !== [] && $path !== '') {
+                $out[$path] = $clean;
+            }
+        }
+
+        foreach ($value as $key => $child) {
+            if ($key === 'source_paths' || !is_string($key) || !is_array($child)) {
+                continue;
+            }
+
+            $childPath = $path === '' ? $key : $path . '.' . $key;
+            $this->collectGenreSourcePathsRecursive($child, $childPath, $out);
+        }
+    }
+
     /**
      * @param array<string, true> $paths
      */