feat: harden analytics dashboard

lib/query-overview.ts

@@ -0,0 +1,55 @@
+import { query } from "./db";
+import { CACHE_CREATION, CACHE_READ, REAL_MODEL, cacheKey, cached, timeWhere } from "./query-shared";
+
+// ── 总览 ──────────────────────────────────────────────────────
+
+export interface OverviewData {
+  total_calls: number;
+  total_tokens: number;
+  total_prompt: number;
+  total_completion: number;
+  total_cache_creation: number;
+  total_cache_read: number;
+  total_quota: number;
+  active_users: number;
+  active_models: number;
+  active_channels: number;
+}
+export function getOverview(
+  startTs?: number,
+  endTs?: number
+): Promise<OverviewData> {
+  return cached(cacheKey("overview", startTs, endTs), async () => {
+  const params: (string | number | boolean | null)[] = [];
+  const where = timeWhere(params, startTs, endTs);
+
+  const rows = await query(
+    `SELECT
+       COUNT(*)::int as total_calls,
+       COALESCE(SUM(prompt_tokens + completion_tokens), 0)::bigint as total_tokens,
+       COALESCE(SUM(prompt_tokens), 0)::bigint as total_prompt,
+       COALESCE(SUM(completion_tokens), 0)::bigint as total_completion,
+       COALESCE(SUM(${CACHE_CREATION}), 0)::bigint as total_cache_creation,
+       COALESCE(SUM(${CACHE_READ}), 0)::bigint as total_cache_read,
+       COALESCE(SUM(quota), 0)::bigint as total_quota,
+       COUNT(DISTINCT user_id)::int as active_users,
+       COUNT(DISTINCT ${REAL_MODEL})::int as active_models,
+       COUNT(DISTINCT channel_id)::int as active_channels
+     FROM logs WHERE ${where}`,
+    params
+  );
+  const r = rows[0];
+  return {
+    total_calls: Number(r.total_calls),
+    total_tokens: Number(r.total_tokens) + Number(r.total_cache_creation) + Number(r.total_cache_read),
+    total_prompt: Number(r.total_prompt),
+    total_completion: Number(r.total_completion),
+    total_cache_creation: Number(r.total_cache_creation),
+    total_cache_read: Number(r.total_cache_read),
+    total_quota: Number(r.total_quota),
+    active_users: Number(r.active_users),
+    active_models: Number(r.active_models),
+    active_channels: Number(r.active_channels),
+  };
+  });
+}