From 7c453467df8dfd0ce8aadc1ce69b50f25af202aa Mon Sep 17 00:00:00 2001
From: Adriaan Jacquet <adriaanjacquet@gmail.com>
Date: Tue, 11 Mar 2025 18:04:27 +0100
Subject: [PATCH] feat: submission endpoint geimplementeerd (ongetest)

---
 backend/src/controllers/submissions.ts | 25 +++++++++++++++++++++
 backend/src/interfaces/submission.ts   | 30 ++++++++++++++++++++++++++
 backend/src/routes/learning-objects.ts |  4 ++++
 backend/src/routes/submissions.ts      | 14 ++++--------
 backend/src/services/submissions.ts    | 22 +++++++++++++++++++
 5 files changed, 85 insertions(+), 10 deletions(-)
 create mode 100644 backend/src/controllers/submissions.ts
 create mode 100644 backend/src/interfaces/submission.ts
 create mode 100644 backend/src/services/submissions.ts

diff --git a/backend/src/controllers/submissions.ts b/backend/src/controllers/submissions.ts
new file mode 100644
index 00000000..24449ae8
--- /dev/null
+++ b/backend/src/controllers/submissions.ts
@@ -0,0 +1,25 @@
+import { Request, Response } from "express";
+import { getSubmission } from "../services/submissions";
+import { Language } from "../entities/content/language";
+
+interface SubmissionParams {
+    lohruid: string,
+    submissionNumber: number;
+}
+
+export async function getSubmissionHandler(
+    req: Request<SubmissionParams>,
+    res: Response,
+): Promise<void> {
+    const lohruid = req.params.lohruid;
+    const submissionNumber = req.params.submissionNumber;
+
+    const submission = getSubmission(lohruid, Language.Dutch, '1', submissionNumber);
+
+    if (!submission) {
+        res.status(404).json({ error: 'Submission not found' });
+        return;
+    }
+
+    res.json(submission);
+}
\ No newline at end of file
diff --git a/backend/src/interfaces/submission.ts b/backend/src/interfaces/submission.ts
new file mode 100644
index 00000000..daf00a64
--- /dev/null
+++ b/backend/src/interfaces/submission.ts
@@ -0,0 +1,30 @@
+import { Submission } from "../entities/assignments/submission.entity";
+import { Language } from "../entities/content/language";
+import { GroupDTO, mapToGroupDTO } from "./group";
+import { mapToStudentDTO, StudentDTO } from "./student";
+
+export interface SubmissionDTO {
+    learningObjectHruid: string,
+    learningObjectLanguage: Language,
+    learningObjectVersion: string,
+
+    submissionNumber: number,
+    submitter: StudentDTO | string,
+    time: Date,
+    group?: GroupDTO | string,
+    content: string,
+}
+
+export function mapToSubmissionDTO(submission: Submission): SubmissionDTO {
+    return {
+        learningObjectHruid: submission.learningObjectHruid,
+        learningObjectLanguage: submission.learningObjectLanguage,
+        learningObjectVersion: submission.learningObjectVersion,
+
+        submissionNumber: submission.submissionNumber,
+        submitter: mapToStudentDTO(submission.submitter),
+        time: submission.submissionTime,
+        group: submission.onBehalfOf ? mapToGroupDTO(submission.onBehalfOf) : undefined,
+        content: submission.content,
+    }
+}
\ No newline at end of file
diff --git a/backend/src/routes/learning-objects.ts b/backend/src/routes/learning-objects.ts
index 3717095a..77094955 100644
--- a/backend/src/routes/learning-objects.ts
+++ b/backend/src/routes/learning-objects.ts
@@ -4,6 +4,8 @@ import {
     getLearningObject,
 } from '../controllers/learning-objects.js';
 
+import submissionRoutes from './submissions.js';
+
 const router = express.Router();
 
 // DWENGO learning objects
@@ -24,4 +26,6 @@ router.get('/', getAllLearningObjects);
 // Example: http://localhost:3000/learningObject/un_ai7
 router.get('/:hruid', getLearningObject);
 
+router.use('/:hruid/submissions', submissionRoutes);
+
 export default router;
diff --git a/backend/src/routes/submissions.ts b/backend/src/routes/submissions.ts
index cb4d3e85..b4e34c74 100644
--- a/backend/src/routes/submissions.ts
+++ b/backend/src/routes/submissions.ts
@@ -1,6 +1,9 @@
 import express from 'express';
+import { getSubmissionHandler } from '../controllers/submissions';
 const router = express.Router();
 
+
+
 // Root endpoint used to search objects
 router.get('/', (req, res) => {
     res.json({
@@ -9,15 +12,6 @@ router.get('/', (req, res) => {
 });
 
 // Information about an submission with id 'id'
-router.get('/:id', (req, res) => {
-    res.json({
-        id: req.params.id,
-        student: '0',
-        group: '0',
-        time: new Date(2025, 1, 1),
-        content: 'Wortel 2 is rationeel',
-        learningObject: '0',
-    });
-});
+router.get('/:id', getSubmissionHandler);
 
 export default router;
diff --git a/backend/src/services/submissions.ts b/backend/src/services/submissions.ts
new file mode 100644
index 00000000..2c2e1aad
--- /dev/null
+++ b/backend/src/services/submissions.ts
@@ -0,0 +1,22 @@
+import { getSubmissionRepository } from "../data/repositories";
+import { Language } from "../entities/content/language";
+import { LearningObjectIdentifier } from "../entities/content/learning-object-identifier";
+import { mapToSubmissionDTO, SubmissionDTO } from "../interfaces/submission";
+
+export async function getSubmission(
+    learningObjectHruid: string,
+    language: Language,
+    version: string,
+    submissionNumber: number, 
+): Promise<SubmissionDTO | null> {
+    const loId = new LearningObjectIdentifier(learningObjectHruid, language, version); 
+
+    const submissionRepository = getSubmissionRepository();
+    const submission = await submissionRepository.findSubmissionByLearningObjectAndSubmissionNumber(loId, submissionNumber);
+
+    if (!submission) {
+        return null;
+    }
+
+    return mapToSubmissionDTO(submission);
+}
\ No newline at end of file