space "identifyable" property including quest

src/c3nav/mapdata/quests/positioning.py

@@ -0,0 +1,54 @@
+from dataclasses import dataclass
+
+from django.core.exceptions import ValidationError
+from django.utils.translation import gettext_lazy as _
+from shapely import Point
+from shapely.geometry import mapping
+
+from c3nav.mapdata.models.geometry.space import RangingBeacon
+from c3nav.mapdata.quests.base import ChangeSetModelForm, register_quest, Quest
+
+
+class RangingBeaconAltitudeQuestForm(ChangeSetModelForm):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields["altitude"].label = (
+            _('How many meters above ground is the access point “%s” mounted?') % self.instance.comment
+        )
+
+    def clean_altitude(self):
+        data = self.cleaned_data["altitude"]
+        if not data:
+            raise ValidationError(_("The AP should not be 0m above ground."))
+        return data
+
+    class Meta:
+        model = RangingBeacon
+        fields = ("altitude", )
+
+    def save(self, *args, **kwargs):
+        self.instance.altitude_quest = False
+        return super().save(*args, **kwargs)
+
+    @property
+    def changeset_title(self):
+        return f'Altitude Quest: {self.instance.title}'
+
+
+@register_quest
+@dataclass
+class RangingBeaconAltitudeQuest(Quest):
+    quest_type = "ranging_beacon_altitude"
+    quest_type_label = _('Ranging Beacon Altitude')
+    quest_type_icon = "router"
+    form_class = RangingBeaconAltitudeQuestForm
+    obj: RangingBeacon
+
+    @property
+    def point(self) -> Point:
+        return mapping(self.obj.geometry)
+
+    @classmethod
+    def _qs_for_request(cls, request):
+        return RangingBeacon.qs_for_request(request).select_related('space',
+                                                                    'space__level').filter(altitude_quest=True)