Add a lot of comments

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

draw/views.py

@@ -1,6 +1,7 @@
 # Copyright (C) 2023 by Animath
 # SPDX-License-Identifier: GPL-3.0-or-later
 
+from django.conf import settings
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.views.generic import TemplateView, DetailView
 
@@ -8,6 +9,10 @@ from participation.models import Tournament
 
 
 class DisplayView(LoginRequiredMixin, TemplateView):
+    """
+    This view is the main interface of the drawing system, which is working
+    with Javascript and websockets.
+    """
     template_name = 'draw/index.html'
 
     def get_context_data(self, **kwargs):
@@ -15,18 +20,21 @@ class DisplayView(LoginRequiredMixin, TemplateView):
 
         reg = self.request.user.registration
         if reg.is_admin:
+            # Administrators can manage all tournaments
             tournaments = Tournament.objects.order_by('id').all()
         elif reg.is_volunteer:
+            # A volunteer can see their tournaments
             tournaments = reg.interesting_tournaments
         else:
+            # A participant can see its own tournament, or the final if necessary
             tournaments = [reg.team.participation.tournament]
+            if reg.team.participation.final:
+                tournaments.append(Tournament.final_tournament())
+
         context['tournaments'] = tournaments
+        # This will be useful for JavaScript data
         context['tournaments_simplified'] = [{'id': t.id, 'name': t.name} for t in tournaments]
+        context['problems'] = settings.PROBLEMS
 
 
         return context
-
-
-class DisplayContentView(LoginRequiredMixin, DetailView):
-    model = Tournament
-    template_name = 'draw/tournament_content.html'