snapshot of https://github.com/zulip/zulip.git @ 48c69911c7dd4e03b20552eb3bd77ad8151c1357 (2026-09-15)

zerver/views/message_summary.py

@@ -0,0 +1,39 @@
+from django.conf import settings
+from django.http import HttpRequest, HttpResponse
+from django.utils.translation import gettext as _
+from pydantic import Json
+
+from analytics.lib.counts import COUNT_STATS
+from zerver.actions.message_summary import do_summarize_narrow
+from zerver.lib.exceptions import JsonableError
+from zerver.lib.narrow import NarrowParameter
+from zerver.lib.response import json_success
+from zerver.lib.typed_endpoint import typed_endpoint
+from zerver.models import UserProfile
+
+
+@typed_endpoint
+def get_messages_summary(
+    request: HttpRequest,
+    user_profile: UserProfile,
+    *,
+    narrow: Json[list[NarrowParameter] | None] = None,
+) -> HttpResponse:
+    if settings.TOPIC_SUMMARIZATION_MODEL is None:  # nocoverage
+        raise JsonableError(_("AI features are not enabled on this server."))
+
+    if not user_profile.can_summarize_topics():
+        raise JsonableError(_("Insufficient permission"))
+
+    if settings.MAX_PER_USER_MONTHLY_AI_COST is not None:
+        used_credits = COUNT_STATS["ai_credit_usage::day"].current_month_accumulated_count_for_user(
+            user_profile
+        )
+        if used_credits >= settings.MAX_PER_USER_MONTHLY_AI_COST * 1000000000:
+            raise JsonableError(_("Reached monthly limit for AI credits."))
+
+    summary = do_summarize_narrow(user_profile, narrow)
+    if summary is None:  # nocoverage
+        raise JsonableError(_("No messages in conversation to summarize"))
+
+    return json_success(request, {"summary": summary})