bulk export through fit files

rowers/tasks.py

@@ -386,18 +386,13 @@ def email_all_user_workouts_zip(rower, start_date=None, end_date=None, debug=Fal
         for workout in workouts:
             try:
                 rowdata = rdata(csvfile=workout.csvfilename)
-                rowdate = rowdata.rowdatetime
-                starttimeunix = arrow.get(rowdate).timestamp()
-                df = rowdata.df
-
-                try:
-                    df[' ElapsedTime (sec)'] = df['TimeStamp (sec)']
-                    df['TimeStamp (sec)'] = df['TimeStamp (sec)'] + starttimeunix
-                except KeyError:
-                    pass
-
-                csv_filename = f"workout_{workout.id}_{workout.date.strftime('%Y%m%d')}.csv"
-                zip_file.writestr(csv_filename, df.to_csv(index=False))
+                workouttype = mytypes.fitmapping.get(workout.workouttype, 'generic')
+            
+                fit_filename = f"workout_{workout.id}_{workout.date.strftime('%Y%m%d')}.fit"
+                # exporttofit creates a file, we need to add it to the zip_file
+                rowdata.exporttofit(fit_filename, sport=workouttype, notes=workout.name)
+                zip_file.write(fit_filename, arcname=fit_filename)
+                os.remove(fit_filename)
             except Exception as e:  # pragma: no cover
                 dologging('export_all_workouts.log', f"Error exporting workout {workout.id}: {str(e)}")
                 continue