Initial import: live state on api.qbirr.com (server v0.6.3)

src/orchestrator/memory.ts

@@ -0,0 +1,43 @@
+/**
+ * Server-side conversation memory. Persists each run's user goal + final
+ * assistant answer per session, and recalls the recent turns so a run has
+ * context even when the plugin sends little/no history. Independent of the
+ * plugin's own carry-forward.
+ */
+
+import { getDb } from '../db/pool.js';
+import { newId } from '../lib/crypto.js';
+import type { RunContextMessage } from './types.js';
+
+const MAX_RECALL = 12;       // turns to prepend
+const MAX_CONTENT = 4000;    // clip very long turns
+
+export function saveTurn(session_id: string, role: 'user' | 'assistant', content: string, user_id?: string): void {
+  if (!session_id || !content) return;
+  getDb().prepare(
+    'INSERT INTO conversation_turns (id, session_id, user_id, role, content) VALUES (?,?,?,?,?)',
+  ).run(newId(), session_id, user_id ?? null, role, content.slice(0, MAX_CONTENT));
+}
+
+export function recallTurns(session_id: string, limit = MAX_RECALL): RunContextMessage[] {
+  if (!session_id) return [];
+  const rows = getDb().prepare(
+    'SELECT role, content FROM conversation_turns WHERE session_id = ? ORDER BY created_at DESC LIMIT ?',
+  ).all(session_id, limit) as { role: string; content: string }[];
+  return rows
+    .reverse()
+    .map((r) => ({ role: r.role === 'assistant' ? 'assistant' : 'user', content: r.content }) as RunContextMessage);
+}
+
+/**
+ * Merge recalled memory with the context the plugin sent, de-duplicating
+ * so we don't double-feed turns the plugin already included. Memory is
+ * prepended (older), then the plugin's context (newer).
+ */
+export function mergeContext(session_id: string, pluginContext: RunContextMessage[]): RunContextMessage[] {
+  const recalled = recallTurns(session_id);
+  if (recalled.length === 0) return pluginContext;
+  const seen = new Set(pluginContext.map((m) => `${m.role}:${m.content.slice(0, 80)}`));
+  const fromMemory = recalled.filter((m) => !seen.has(`${m.role}:${m.content.slice(0, 80)}`));
+  return [...fromMemory, ...pluginContext];
+}