flexible dynamic imports - devenv, build, etc...

(hard to see if this works in prod without a manual test)

Author: NiloCK

packages/db/src/core/navigators/index.ts

@@ -28,7 +28,25 @@ export abstract class ContentNavigator implements StudyContentSource {
     strategyData: ContentNavigationStrategyData
   ): ContentNavigator {
     const implementingClass = strategyData.implementingClass;
-    const NavigatorImpl = require(`./${implementingClass}.ts`).default;
+    let NavigatorImpl;
+
+    // Try different extension variations
+    const variations = ['', '.ts', '.js'];
+
+    for (const ext of variations) {
+      try {
+        NavigatorImpl = require(`./${implementingClass}${ext}`).default;
+        break; // Break the loop if loading succeeds
+      } catch (e) {
+        // Continue to next variation if this one fails
+        console.log(`Failed to load with extension ${ext}:`, e);
+      }
+    }
+
+    if (!NavigatorImpl) {
+      throw new Error(`Could not load navigator implementation for: ${implementingClass}`);
+    }
+
     return new NavigatorImpl(user, course, strategyData);
   }