Merge branch 'dev' into feat/caching

backend/src/services/learning-paths/dwengo-api-learning-path-provider.ts

@@ -3,11 +3,33 @@ import { DWENGO_API_BASE } from '../../config.js';
 import { LearningPathProvider } from './learning-path-provider.js';
 import { getLogger, Logger } from '../../logging/initalize.js';
 import { LearningPath, LearningPathResponse } from '@dwengo-1/common/interfaces/learning-content';
+import { Group } from '../../entities/assignments/group.entity.js';
+import { getLastSubmissionForGroup, idFromLearningObjectNode } from './learning-path-personalization-util.js';
 
 const logger: Logger = getLogger();
 
+/**
+ * Adds progress information to the learning path. Modifies the learning path in-place.
+ * @param learningPath The learning path to add progress to.
+ * @param personalizedFor The group whose progress should be shown.
+ * @returns the modified learning path.
+ */
+async function addProgressToLearningPath(learningPath: LearningPath, personalizedFor: Group): Promise<LearningPath> {
+    await Promise.all(
+        learningPath.nodes.map(async (node) => {
+            const lastSubmission = personalizedFor ? await getLastSubmissionForGroup(idFromLearningObjectNode(node), personalizedFor) : null;
+            node.done = Boolean(lastSubmission);
+        })
+    );
+
+    learningPath.num_nodes = learningPath.nodes.length;
+    learningPath.num_nodes_left = learningPath.nodes.filter((it) => !it.done).length;
+
+    return learningPath;
+}
+
 const dwengoApiLearningPathProvider: LearningPathProvider = {
-    async fetchLearningPaths(hruids: string[], language: string, source: string): Promise<LearningPathResponse> {
+    async fetchLearningPaths(hruids: string[], language: string, source: string, personalizedFor: Group): Promise<LearningPathResponse> {
         if (hruids.length === 0) {
             return {
                 success: false,
@@ -32,17 +54,23 @@ const dwengoApiLearningPathProvider: LearningPathProvider = {
             };
         }
 
+        await Promise.all(learningPaths?.map(async (it) => addProgressToLearningPath(it, personalizedFor)));
+
         return {
             success: true,
             source,
             data: learningPaths,
         };
     },
-    async searchLearningPaths(query: string, language: string): Promise<LearningPath[]> {
+    async searchLearningPaths(query: string, language: string, personalizedFor: Group): Promise<LearningPath[]> {
         const apiUrl = `${DWENGO_API_BASE}/learningPath/search`;
         const params = { all: query, language };
 
         const searchResults = await fetchRemote<LearningPath[]>(apiUrl, `Search learning paths with query "${query}"`, { params });
+
+        if (searchResults) {
+            await Promise.all(searchResults?.map(async (it) => addProgressToLearningPath(it, personalizedFor)));
+        }
         return searchResults ?? [];
     },
 };