Add training times management and enhance diary view with group selection dialog

This commit introduces the `TrainingTime` model and related functionality, allowing for the management of training times associated with training groups. The backend is updated to include new routes for training times, while the frontend is enhanced with a new dialog in the `DiaryView` for selecting training groups and suggesting available training times. This improves user experience by streamlining the process of scheduling training sessions and managing associated data.

backend/controllers/trainingTimeController.js

@@ -0,0 +1,80 @@
+import trainingTimeService from '../services/trainingTimeService.js';
+import { getSafeErrorMessage } from '../utils/errorUtils.js';
+
+export const getTrainingTimes = async (req, res) => {
+    try {
+        const { authcode: userToken } = req.headers;
+        const { clubId } = req.params;
+        const groups = await trainingTimeService.getTrainingTimes(userToken, clubId);
+        res.status(200).json(groups);
+    } catch (error) {
+        console.error('[getTrainingTimes] - Error:', error);
+        const msg = getSafeErrorMessage(error, 'Fehler beim Laden der Trainingszeiten');
+        res.status(error.statusCode || 500).json({ error: msg });
+    }
+};
+
+export const createTrainingTime = async (req, res) => {
+    try {
+        const { authcode: userToken } = req.headers;
+        const { clubId } = req.params;
+        const { trainingGroupId, weekday, startTime, endTime } = req.body;
+        
+        if (!trainingGroupId || weekday === undefined || !startTime || !endTime) {
+            return res.status(400).json({ error: 'Alle Felder müssen ausgefüllt sein' });
+        }
+        
+        const trainingTime = await trainingTimeService.createTrainingTime(
+            userToken,
+            clubId,
+            trainingGroupId,
+            weekday,
+            startTime,
+            endTime
+        );
+        
+        res.status(201).json(trainingTime);
+    } catch (error) {
+        console.error('[createTrainingTime] - Error:', error);
+        const msg = getSafeErrorMessage(error, 'Fehler beim Erstellen der Trainingszeit');
+        res.status(error.statusCode || 500).json({ error: msg });
+    }
+};
+
+export const updateTrainingTime = async (req, res) => {
+    try {
+        const { authcode: userToken } = req.headers;
+        const { clubId, timeId } = req.params;
+        const { weekday, startTime, endTime } = req.body;
+        
+        const trainingTime = await trainingTimeService.updateTrainingTime(
+            userToken,
+            clubId,
+            timeId,
+            weekday,
+            startTime,
+            endTime
+        );
+        
+        res.status(200).json(trainingTime);
+    } catch (error) {
+        console.error('[updateTrainingTime] - Error:', error);
+        const msg = getSafeErrorMessage(error, 'Fehler beim Aktualisieren der Trainingszeit');
+        res.status(error.statusCode || 500).json({ error: msg });
+    }
+};
+
+export const deleteTrainingTime = async (req, res) => {
+    try {
+        const { authcode: userToken } = req.headers;
+        const { clubId, timeId } = req.params;
+        
+        const result = await trainingTimeService.deleteTrainingTime(userToken, clubId, timeId);
+        res.status(200).json(result);
+    } catch (error) {
+        console.error('[deleteTrainingTime] - Error:', error);
+        const msg = getSafeErrorMessage(error, 'Fehler beim Löschen der Trainingszeit');
+        res.status(error.statusCode || 500).json({ error: msg });
+    }
+};
+