Add graphs on dashboard

app/routes.py

@@ -66,13 +66,23 @@ def dashboard():
         badges.append("100 Readings Milestone")
     if len(weekly_readings) >= 7:
         badges.append("Logged Readings for 7 Days")
+    
+    # Prepare data for the graphs
+    timestamps = [reading.timestamp.strftime('%b %d') for reading in readings]
+    systolic = [reading.systolic for reading in readings]
+    diastolic = [reading.diastolic for reading in readings]
+    heart_rate = [reading.heart_rate for reading in readings]
 
     # Pass the delete form to the template
     delete_form = DeleteForm()
 
     return render_template('dashboard.html', readings=readings, profile=profile, badges=badges,
                            systolic_avg=systolic_avg, diastolic_avg=diastolic_avg, heart_rate_avg=heart_rate_avg,
-                           delete_form=delete_form)
+                           delete_form=delete_form,
+        timestamps=timestamps,
+        systolic=systolic,
+        diastolic=diastolic,
+        heart_rate=heart_rate)
 
 @main.route('/dashboard/filter', methods=['POST'])
 @login_required