Enhance exercise listing with variant and media counts

- Updated the `list_exercises` function to include counts for exercise variants and media, improving data retrieval for exercise details.
- Added new CSS styles for the exercise card footer to display variant and media statistics in a visually appealing manner.
- Implemented `ExerciseCardContentStats` component to conditionally render variant and media counts, enhancing the user interface of exercise cards.

backend/routers/exercises.py

@@ -2095,7 +2095,17 @@ def list_exercises(
                      FROM exercise_training_types ett
                      JOIN training_types tt ON tt.id = ett.training_type_id
                      WHERE ett.exercise_id = e.id
-                   ) AS training_type_names
+                   ) AS training_type_names,
+                   (
+                     SELECT COUNT(*)::int
+                     FROM exercise_variants ev
+                     WHERE ev.exercise_id = e.id
+                   ) AS variant_count,
+                   (
+                     SELECT COUNT(*)::int
+                     FROM exercise_media em
+                     WHERE em.exercise_id = e.id
+                   ) AS media_count
                    {variants_sql}
             FROM exercises e
             LEFT JOIN profiles p ON e.created_by = p.id
@@ -2118,6 +2128,8 @@ def list_exercises(
         d["focus_area_names"] = _coerce_json_str_list(d.get("focus_area_names"))
         d["style_direction_names"] = _coerce_json_str_list(d.get("style_direction_names"))
         d["training_type_names"] = _coerce_json_str_list(d.get("training_type_names"))
+        d["variant_count"] = int(d.get("variant_count") or 0)
+        d["media_count"] = int(d.get("media_count") or 0)
         if include_variants:
             v = d.get("variants")
             if isinstance(v, str):

frontend/src/app.css

@@ -4819,6 +4819,34 @@ html.modal-scroll-locked .app-main {
   min-height: 44px;
   box-sizing: border-box;
 }
+.exercise-card__footer-meta {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  flex-wrap: wrap;
+  min-width: 0;
+  flex-shrink: 1;
+}
+.exercise-card__content-stats {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  color: var(--text3);
+}
+.exercise-card__stat {
+  display: inline-flex;
+  align-items: center;
+  gap: 3px;
+  color: var(--text3);
+  font-size: 12px;
+  line-height: 1;
+}
+.exercise-card__stat-num {
+  font-variant-numeric: tabular-nums;
+  font-weight: 600;
+  font-size: 12px;
+  line-height: 1;
+}
 .exercise-card__meta-compact {
   display: inline-flex;
   align-items: center;

frontend/src/components/exercises/ExerciseListCard.jsx

@@ -11,6 +11,8 @@ import {
   Archive,
   CircleDot,
   FilePenLine,
+  Image,
+  Layers,
 } from 'lucide-react'
 import ExerciseRichTextBlock from '../ExerciseRichTextBlock'
 import { coerceApiNameList } from '../../utils/sanitizeHtml'
@@ -48,6 +50,52 @@ function exerciseCardClassName(exercise, userId) {
     .join(' ')
 }
 
+function exerciseVariantCount(exercise) {
+  if (typeof exercise?.variant_count === 'number' && Number.isFinite(exercise.variant_count)) {
+    return Math.max(0, exercise.variant_count)
+  }
+  return Array.isArray(exercise?.variants) ? exercise.variants.length : 0
+}
+
+function exerciseMediaCount(exercise) {
+  if (typeof exercise?.media_count === 'number' && Number.isFinite(exercise.media_count)) {
+    return Math.max(0, exercise.media_count)
+  }
+  return Array.isArray(exercise?.media) ? exercise.media.length : 0
+}
+
+function ExerciseCardContentStats({ exercise }) {
+  const mediaCount = exerciseMediaCount(exercise)
+  const variantCount = exerciseVariantCount(exercise)
+  if (mediaCount <= 0 && variantCount <= 0) return null
+
+  const mediaLabel =
+    mediaCount === 1 ? '1 Medium hinterlegt' : `${mediaCount} Medien hinterlegt`
+  const variantLabel =
+    variantCount === 1 ? '1 Variante' : `${variantCount} Varianten`
+
+  return (
+    <div className="exercise-card__content-stats">
+      {mediaCount > 0 ? (
+        <span className="exercise-card__stat" title={mediaLabel} aria-label={mediaLabel}>
+          <Image size={15} strokeWidth={2} aria-hidden />
+          <span className="exercise-card__stat-num" aria-hidden>
+            {mediaCount}
+          </span>
+        </span>
+      ) : null}
+      {variantCount > 0 ? (
+        <span className="exercise-card__stat" title={variantLabel} aria-label={variantLabel}>
+          <Layers size={15} strokeWidth={2} aria-hidden />
+          <span className="exercise-card__stat-num" aria-hidden>
+            {variantCount}
+          </span>
+        </span>
+      ) : null}
+    </div>
+  )
+}
+
 function ExerciseCardScopeStatus({ exercise }) {
   const v = exercise.visibility || 'private'
   const s = exercise.status || 'draft'
@@ -138,7 +186,10 @@ export default function ExerciseListCard({ exercise, user, selectedIds, toggleSe
         </div>
       </div>
       <div className="exercise-card__footer">
-        <ExerciseCardScopeStatus exercise={exercise} />
+        <div className="exercise-card__footer-meta">
+          <ExerciseCardScopeStatus exercise={exercise} />
+          <ExerciseCardContentStats exercise={exercise} />
+        </div>
         <div className="exercise-card__actions exercise-card__actions--icons">
           <Link
             to={`/exercises/${exercise.id}`}