Improve poll support

Misskey polls/questions don't have an endTime or the
Mastodon-specific votersCount attribute.

app/ap_object.py

@@ -196,14 +196,36 @@ class Object:
 
     @property
     def is_poll_ended(self) -> bool:
-        if self.ap_object.get("endTime"):
-            return now() > parse_isoformat(self.ap_object["endTime"])
+        if self.poll_end_time:
+            return now() > self.poll_end_time
         return False
 
     @cached_property
     def poll_items(self) -> list[ap.RawObject] | None:
         return self.ap_object.get("oneOf") or self.ap_object.get("anyOf")
 
+    @cached_property
+    def poll_end_time(self) -> datetime | None:
+        # Some polls may not have an end time
+        if self.ap_object.get("endTime"):
+            return parse_isoformat(self.ap_object["endTime"])
+
+        return None
+
+    @cached_property
+    def poll_voters_count(self) -> int | None:
+        if not self.poll_items:
+            return None
+        # Only Mastodon set this attribute
+        if self.ap_object.get("votersCount"):
+            return self.ap_object["votersCount"]
+        else:
+            voters_count = 0
+            for item in self.poll_items:
+                voters_count += item.get("replies", {}).get("totalItems", 0)
+
+            return voters_count
+
     @cached_property
     def is_one_of_poll(self) -> bool:
         return bool(self.ap_object.get("oneOf"))

app/templates/utils.html

@@ -381,7 +381,7 @@
             <ul style="list-style-type: none;padding:0;">
             {% for item in object.poll_items %}
             <li style="display:block;">
-                {% set pct = item | poll_item_pct(object.ap_object.votersCount) %}
+                {% set pct = item | poll_item_pct(object.poll_voters_count) %}
                 <p style="margin:20px 0 10px 0;">
                     {% if can_vote %}
                     <input type="{% if object.is_one_of_poll %}radio{% else %}checkbox{% endif %}" name="name" value="{{ item.name }}" id="{{object.permalink_id}}-{{item.name}}">
@@ -435,12 +435,16 @@
             </li>
         {% endif %}
         {% if object.ap_type == "Question" %}
-        {% set endAt = object.ap_object.endTime | parse_datetime %}
+            {% if object.poll_end_time %}
                 <li>
-                {% if object.is_poll_ended %}ended{% else %}ends{% endif %} <time title="{{ endAt.replace(microsecond=0).isoformat() }}">{{ endAt | timeago }}</time>
+                    {% if object.is_poll_ended %}ended{% else %}ends{% endif %}
+                    <time title="{{ object.poll_end_time.replace(microsecond=0).isoformat() }}">
+                        {{ object.poll_end_time | timeago }}
+                    </time>
                 </li>
+            {% endif %}
             <li>
-                {{ object.ap_object.votersCount }} voters
+                {{ object.poll_voters_count }} voters
             </li>
         {% endif %}
         {% if is_admin %}