slop

server/src/services/roverLearningService/models.js

@@ -0,0 +1,20 @@
+// Published directories are immutable and become visible via atomic rename.
+const fs = require('node:fs/promises');
+const path = require('node:path');
+
+async function listModels(root) {
+  const directory = path.join(root, 'models');
+  let entries;
+  try { entries = await fs.readdir(directory, { withFileTypes: true }); }
+  catch (error) { if (error.code === 'ENOENT') return []; throw error; }
+  const models = [];
+  for (const entry of entries) {
+    if (!entry.isDirectory() || !/^[0-9a-f-]{36}$/.test(entry.name)) continue;
+    const metadata = JSON.parse(await fs.readFile(path.join(directory, entry.name, 'model.json'), 'utf8'));
+    if (metadata.id !== entry.name) throw new Error(`Model identity mismatch: ${entry.name}`);
+    models.push(metadata);
+  }
+  return models.sort((a, b) => b.createdAt - a.createdAt);
+}
+
+module.exports = { listModels };