When a new workout is created, calculate and persist distance, calories, average, min, max rpm|bpm etc (Need to test this)

app.py

@@ -141,8 +141,8 @@ def workouts(user_id):
         app.logger.info(f'Creating workout for user {user.name} ({user.id})')
 
         data = request.json
-        workout_data = data['workout'] or []
-        heart_rate = data['heart_rate'] or []
+        cadence_readings = data['cadence_readings'] or []
+        heart_rate_readings = data['heart_rate_readings'] or []
 
         # create a new workout
         workout = Workout(user_id=user_id, bike_id=user.bike_id)
@@ -150,19 +150,57 @@ def workouts(user_id):
         db.session.commit()
 
         app.logger.info(
-            f'Workout({workout.id}) created for user {user.name} ({user.id}) with {len(workout_data)} cadence readings and {len(heart_rate)} heart rate readings')
+            f'Workout({workout.id}) created for user {user.name} ({user.id}) with {len(cadence_readings)} cadence readings and {len(heart_rate_readings)} heart rate readings')
 
         # add cadence readings to the workout
-        for w in workout_data:
+        for c in cadence_readings:
             cadence_reading = CadenceReading(
-                workout_id=workout.id, created_at=w['timestamp'], rpm=w['rpm'], distance=w['distance'], speed=w['speed'], calories=w['calories'], power=w['power'])
+                workout_id=workout.id, created_at=c['timestamp'], rpm=c['rpm'], distance=c['distance'], speed=c['speed'], calories=c['calories'], power=c['power'])
             db.session.add(cadence_reading)
 
-        for h in heart_rate:
+        for h in heart_rate_readings:
             heart_rate_reading = HeartRateReading(
                 workout_id=workout.id, created_at=h['timestamp'], bpm=h['bpm'])
             db.session.add(heart_rate_reading)
 
+        if cadence_readings:
+            start_time = min(
+                reading.created_at for reading in cadence_readings)
+            end_time = max(
+                reading.created_at for reading in cadence_readings)
+            duration = end_time - start_time
+            duration = duration.total_seconds()
+            average_rpm = sum(
+                reading.rpm for reading in cadence_readings) / len(cadence_readings)
+            min_rpm = min(
+                reading.rpm for reading in cadence_readings)
+            max_rpm = max(
+                reading.rpm for reading in cadence_readings)
+            calories = cadence_readings[-1].calories
+            distance = cadence_readings[-1].distance
+
+            workout.is_cadence_available = True
+            workout.started_at = start_time
+            workout.duration = duration
+            workout.average_rpm = average_rpm
+            workout.min_rpm = min_rpm
+            workout.max_rpm = max_rpm
+            workout.calories = calories
+            workout.distance = distance
+
+        if heart_rate_readings:
+            average_bpm = sum(heartrate.bpm for heartrate in heart_rate_readings) / \
+                len(heart_rate_readings)
+            min_bpm = min(
+                heartrate.bpm for heartrate in heart_rate_readings)
+            max_bpm = max(
+                heartrate.bpm for heartrate in heart_rate_readings)
+
+            workout.is_heart_rate_available = True
+            workout.average_bpm = average_bpm
+            workout.min_bpm = min_bpm
+            workout.max_bpm = max_bpm
+
         db.session.commit()
 
         return jsonify({'message': 'Workout created successfully.'}), 201