add mesh communication from django form

src/c3nav/control/views/mesh.py

@@ -1,8 +1,14 @@
+from django.contrib import messages
 from django.db.models import Max
-from django.views.generic import ListView, DetailView
+from django.http import Http404
+from django.urls import reverse
+from django.utils.translation import gettext_lazy as _
+from django.views.generic import ListView, DetailView, FormView
 
-from c3nav.control.forms import MeshMessageFilerForm
+from c3nav.control.forms import MeshMessageFilterForm
 from c3nav.control.views.base import ControlPanelMixin
+from c3nav.mesh.forms import MeshMessageForm
+from c3nav.mesh.messages import MessageType
 from c3nav.mesh.models import MeshNode, NodeMessage
 
 
@@ -22,6 +28,9 @@ class MeshNodeDetailView(ControlPanelMixin, DetailView):
     pk_url_kwargs = "address"
     context_object_name = "node"
 
+    def get_queryset(self):
+        return super().get_queryset().annotate(last_msg=Max('received_messages__datetime')).prefetch_last_messages()
+
 
 class MeshMessageListView(ControlPanelMixin, ListView):
     model = NodeMessage
@@ -33,7 +42,7 @@ class MeshMessageListView(ControlPanelMixin, ListView):
     def get_queryset(self):
         qs = super().get_queryset()
 
-        self.form = MeshMessageFilerForm(self.request.GET)
+        self.form = MeshMessageFilterForm(self.request.GET)
         if self.form.is_valid():
             if self.form.cleaned_data['message_types']:
                 qs = qs.filter(message_type__in=self.form.cleaned_data['message_types'])
@@ -53,3 +62,40 @@ class MeshMessageListView(ControlPanelMixin, ListView):
             'form_data': form_data.urlencode(),
         })
         return ctx
+
+
+class MeshMessageSendView(ControlPanelMixin, FormView):
+    template_name = "control/mesh_message_send.html"
+
+    def get_form_class(self):
+        try:
+            return MeshMessageForm.get_form_for_type(MessageType[self.kwargs['msg_type']])
+        except KeyError:
+            raise Http404('unknown message type')
+
+    def get_form_kwargs(self):
+        return {
+            **super().get_form_kwargs(),
+            'recipient': self.kwargs.get('recipient', None),
+        }
+
+    def get_initial(self):
+        if 'recipient' in self.kwargs and self.kwargs['msg_type'].startswith('CONFIG_'):
+            try:
+                node = MeshNode.objects.get(address=self.kwargs['recipient'])
+            except MeshNode.DoesNotExist:
+                pass
+            else:
+                return node.last_messages[self.kwargs['msg_type']].parsed.tojson()
+        return {}
+
+    def get_success_url(self):
+        if 'recipient' in self.kwargs and False:
+            return reverse('control.mesh_node.detail', kwargs={'pk': self.kwargs['recipient']})
+        else:
+            return self.request.path
+
+    def form_valid(self, form):
+        form.send()
+        messages.success(self.request, _('Message sent successfully'))
+        return super().form_valid(form)