From f1ba25f9f5403472adf389ade0d2599bb151ff7f Mon Sep 17 00:00:00 2001
From: "Torsten Schulz (local)" <tsschulz@gmx.net>
Date: Wed, 8 Oct 2025 14:54:57 +0200
Subject: [PATCH] Implement logic to determine the quarter with the highest
 training data in TrainingStatsView. Update average participation calculation
 to reflect the best quarter's total participants, enhancing accuracy in
 participation metrics.

---
 frontend/src/views/TrainingStatsView.vue | 36 +++++++++++++++++++-----
 1 file changed, 29 insertions(+), 7 deletions(-)

diff --git a/frontend/src/views/TrainingStatsView.vue b/frontend/src/views/TrainingStatsView.vue
index 9697f80..3d07f5c 100644
--- a/frontend/src/views/TrainingStatsView.vue
+++ b/frontend/src/views/TrainingStatsView.vue
@@ -180,13 +180,35 @@ export default {
     },
 
     averageParticipationQuarter() {
-      const now = new Date();
-      const quarterStartMonth = Math.floor(now.getMonth() / 3) * 3;
-      const quarterEndMonth = quarterStartMonth + 2;
-      const trainingsQuarter = this.getTrainingsInPeriod(now.getFullYear(), quarterStartMonth, now.getFullYear(), quarterEndMonth);
-      if (trainingsQuarter === 0) return 0;
-      const totalParticipants = this.getTotalParticipantsInPeriod(now.getFullYear(), quarterStartMonth, now.getFullYear(), quarterEndMonth);
-      return totalParticipants / trainingsQuarter;
+      // Finde das Quartal mit den meisten Trainingsdaten
+      const quarters = [
+        { year: 2024, startMonth: 0, endMonth: 2, name: 'Q1 2024' },
+        { year: 2024, startMonth: 3, endMonth: 5, name: 'Q2 2024' },
+        { year: 2024, startMonth: 6, endMonth: 8, name: 'Q3 2024' },
+        { year: 2024, startMonth: 9, endMonth: 11, name: 'Q4 2024' },
+        { year: 2025, startMonth: 0, endMonth: 2, name: 'Q1 2025' },
+        { year: 2025, startMonth: 3, endMonth: 5, name: 'Q2 2025' },
+        { year: 2025, startMonth: 6, endMonth: 8, name: 'Q3 2025' },
+        { year: 2025, startMonth: 9, endMonth: 11, name: 'Q4 2025' }
+      ];
+      
+      let bestQuarter = null;
+      let maxTrainings = 0;
+      
+      for (const quarter of quarters) {
+        const trainings = this.getTrainingsInPeriod(quarter.year, quarter.startMonth, quarter.year, quarter.endMonth);
+        if (trainings > maxTrainings) {
+          maxTrainings = trainings;
+          bestQuarter = quarter;
+        }
+      }
+      
+      if (!bestQuarter || maxTrainings === 0) return 0;
+      
+      console.log('🔍 Bestes Quartal:', bestQuarter.name, 'mit', maxTrainings, 'Trainings');
+      
+      const totalParticipants = this.getTotalParticipantsInPeriod(bestQuarter.year, bestQuarter.startMonth, bestQuarter.year, bestQuarter.endMonth);
+      return totalParticipants / maxTrainings;
     },
 
     averageParticipationHalfYear() {