offline background cp chart creation

rowers/tasks.py

@@ -2704,6 +2704,38 @@ def handle_sendemail_invite_reject(email, name, teamname, managername,
     return 1
 
 
+@app.task
+def handle_setcp(strokesdf,filename,workoutid,debug=False,**kwargs):
+    try:
+        os.remove(filename)
+    except FileNotFoundError:
+        pass
+    if not strokesdf.empty:
+        totaltime = strokesdf['time'].max()
+        try:
+            powermean = strokesdf['power'].mean()
+        except KeyError:
+            powermean = 0
+
+        if powermean != 0:
+            thesecs = totaltime
+            maxt = 1.05 * thesecs
+
+            if maxt > 0:
+                logarr = datautils.getlogarr(maxt)
+                dfgrouped = strokesdf.groupby(['workoutid'])
+                delta, cpvalues, avgpower = datautils.getcp(dfgrouped, logarr)
+
+                df = pd.DataFrame({
+                    'delta':delta,
+                    'cp':cpvalues,
+                    'id':workoutid,
+                })
+                df.to_parquet(filename,engine='fastparquet',compression='GZIP')
+                return 1
+
+    return 1
+
 @app.task
 def handle_sendemail_invite_accept(email, name, teamname, managername,
                                    debug=False,**kwargs):