fix: using selected segments

Signed-off-by: Umberto Sgueglia <usgueglia@contractor.linuxfoundation.org>

Author: ulemons

frontend/src/modules/activity/components/activity-timeline.vue

@@ -378,8 +378,6 @@ const fetchActivities = async ({ reset } = { reset: false }) => {
   if (selectedSegment.value) {
     querySegments = [selectedSegment.value];
   } else if (segments.value.length > 0) {
-    // Use entity-specific segments (e.g. member's actual repos) — avoids sending
-    // all project group leaf IDs to Tinybird which causes 400 for large groups.
     querySegments = segments.value.map((s) => s.id);
   } else {
     querySegments = [];

services/libs/data-access-layer/src/activities/tinybirdAdapter.ts

@@ -1,5 +1,9 @@
+import { getServiceLogger } from '@crowd/logging'
+
 import { IQueryActivitiesParameters } from './types'
 
+const log = getServiceLogger()
+
 /* =========================
  * Constants & basic helpers
  * ========================= */
@@ -455,9 +459,19 @@ const emitGroup = (params: TBParams, n: number, g: GroupFilter): void => {
 export function buildActivitiesParams(arg: ExtendedArgs): TBParams {
   const params: TBParams = {}
 
-  // segments as Array(String)
-  const segments = toStringArray(arg.segmentIds)
-  if (segments && segments.length) params.segments = segments
+  // segments as Array(String) — cap at 500 to avoid Tinybird 400 on large project groups.
+  // When an entity filter (memberId/orgId) is present this slice is a preview; users can
+  // drill into a specific segment for full results.
+  const MAX_SEGMENTS = 7500
+  const allSegments = toStringArray(arg.segmentIds)
+  if (allSegments.length > MAX_SEGMENTS) {
+    log.warn(
+      { totalSegments: allSegments.length, cappedAt: MAX_SEGMENTS },
+      'Tinybird segment list truncated — pass a specific segmentId to see full results',
+    )
+  }
+  const segments = allSegments.slice(0, MAX_SEGMENTS)
+  if (segments.length) params.segments = segments
 
   // Optional pass-throughs (arrays, strings, booleans)
   const repos = toStringArray(arg.repos)