enhance delete-session functionality to optionally keep trial clicks

manage_results.sh

@@ -20,10 +20,15 @@
 #                         real participants. Name is matched exactly.
 #                         Example: ./manage_results.sh delete-user "Mario"
 #
-#   delete-session <id>   Remove one specific session (and all its trial clicks)
-#                         by session UUID. Find the ID in a downloaded JSON file
-#                         under sessions[].session_id or trials[].session_id.
+#   delete-session <id>   Remove one specific session by session UUID.
+#                         Find the ID in a downloaded JSON file under
+#                         sessions[].session_id or trials[].session_id.
+#                         Prompts whether to also delete the raw trial clicks
+#                         for that session (default: yes).
+#                           --keep-trials  Keep the trial clicks, remove only
+#                                          the session summary entry.
 #                         Example: ./manage_results.sh delete-session "3f2a1b…"
+#                         Example: ./manage_results.sh delete-session "3f2a1b…" --keep-trials
 #
 # PREREQUISITES
 #   A .env file in the same directory as this script containing:
@@ -121,15 +126,37 @@ print(f\"Removed {d.get('removedSessions',0)} session(s) and {d.get('removedTria
 
 elif [[ "$cmd" == "delete-session" ]]; then
   session_id="${2:-}"
+  flag="${3:-}"
+
   if [[ -z "$session_id" ]]; then
     read -rp "Session ID to delete: " session_id
   fi
-  read -rp "Delete session \"$session_id\" and all its trials? Type YES to confirm: " confirm
+
+  # Resolve --keep-trials flag (can be passed as arg or answered interactively)
+  if [[ "$flag" == "--keep-trials" ]]; then
+    delete_trials=false
+  else
+    read -rp "Also delete the raw trial clicks for this session? [Y/n] " trials_ans
+    if [[ "$trials_ans" =~ ^[Nn] ]]; then
+      delete_trials=false
+    else
+      delete_trials=true
+    fi
+  fi
+
+  if [[ "$delete_trials" == "true" ]]; then
+    what="session summary and all its trial clicks"
+  else
+    what="session summary only (trial clicks will be kept)"
+  fi
+
+  read -rp "Delete $what for \"$session_id\"? Type YES to confirm: " confirm
   if [[ "$confirm" != "YES" ]]; then echo "Aborted."; exit 0; fi
+
   result=$(curl -sf -X POST \
     "${auth_headers[@]}" \
     -H "Content-Type: application/json" \
-    -d "{\"sessionId\": \"$session_id\"}" \
+    -d "{\"sessionId\": \"$session_id\", \"deleteTrials\": $delete_trials}" \
     "$HOST/api/admin/clear-session")
   echo "$result" | python3 -c "
 import sys, json

server.js

@@ -155,15 +155,20 @@ app.post('/api/admin/clear-user', adminAuth, (req, res) => {
   });
 });
 
-// POST /api/admin/clear-session — remove one session and its trials by session_id (admin only)
+// POST /api/admin/clear-session — remove one session by session_id (admin only)
+// Body: { sessionId, deleteTrials: true|false }
+// deleteTrials=true  → remove the session summary AND all its trial clicks
+// deleteTrials=false → remove only the session summary; keep the raw trial clicks
 app.post('/api/admin/clear-session', adminAuth, (req, res) => {
-  const { sessionId } = req.body;
+  const { sessionId, deleteTrials = true } = req.body;
   if (!sessionId) return res.status(400).json({ error: 'sessionId required' });
   const data = readData();
   const sessionsBefore = data.sessions.length;
   const trialsBefore   = data.trials.length;
   data.sessions = data.sessions.filter(s => s.session_id !== sessionId);
-  data.trials   = data.trials.filter(t => t.session_id !== sessionId);
+  if (deleteTrials) {
+    data.trials = data.trials.filter(t => t.session_id !== sessionId);
+  }
   writeData(data);
   res.json({
     ok: true,