Initial Commit

server/db.js

@@ -0,0 +1,64 @@
+'use strict';
+/**
+ * In-memory test store + JSON-file config persistence.
+ * No native modules required.
+ */
+const fs   = require('fs');
+const path = require('path');
+
+const CONFIG_PATH = path.join(__dirname, 'config.json');
+
+// ── Config ───────────────────────────────────────────────────────────────────
+let _config = {};
+try {
+  if (fs.existsSync(CONFIG_PATH)) {
+    _config = JSON.parse(fs.readFileSync(CONFIG_PATH, 'utf8'));
+  }
+} catch { _config = {}; }
+
+function _saveConfig() {
+  fs.writeFileSync(CONFIG_PATH, JSON.stringify(_config, null, 2));
+}
+
+function getConfig(key)        { return _config[key] ?? null; }
+function setConfig(key, value) { _config[key] = value; _saveConfig(); }
+function delConfig(key)        { delete _config[key]; _saveConfig(); }
+
+// ── Tests (keyed by full derived ID) ─────────────────────────────────────────
+/** @type {Map<string, object>} */
+const _tests = new Map();
+
+function upsertTest(test) {
+  const existing = _tests.get(test.id);
+  _tests.set(test.id, {
+    ...test,
+    // Preserve completion state when re-inserting from a target scan
+    completed:        existing ? existing.completed        : 0,
+    completed_at:     existing ? existing.completed_at     : null,
+    duration_seconds: existing ? existing.duration_seconds : null,
+  });
+}
+
+function markCompleted(file_id, device, completed_at, duration_seconds) {
+  for (const [id, test] of _tests) {
+    if (test.file_id === file_id && (!device || test.device === device)) {
+      _tests.set(id, { ...test, completed: 1, completed_at, duration_seconds });
+    }
+  }
+}
+
+function resetByFileIdAndDevice(file_id, device) {
+  for (const [id, test] of _tests) {
+    if (test.file_id === file_id && (!device || test.device === device)) {
+      _tests.set(id, { ...test, completed: 0, completed_at: null, duration_seconds: null });
+    }
+  }
+}
+
+function clearTests()  { _tests.clear(); }
+function getAllTests()  { return Array.from(_tests.values()); }
+
+module.exports = {
+  getConfig, setConfig, delConfig,
+  upsertTest, markCompleted, resetByFileIdAndDevice, clearTests, getAllTests,
+};