完成

src/lib/stats.ts

@@ -0,0 +1,37 @@
+export type StatsResponse = {
+  total: number;
+  byTemplate: Record<string, number>;
+  updatedAt: string | null;
+};
+
+const configuredStatsApiBase = (import.meta.env.VITE_STATS_API_BASE || "").replace(/\/$/, "");
+
+function buildStatsApiUrl(path: string) {
+  return configuredStatsApiBase ? `${configuredStatsApiBase}${path}` : path;
+}
+
+export async function fetchStats(): Promise<StatsResponse> {
+  const response = await fetch(buildStatsApiUrl("/api/stats"));
+
+  if (!response.ok) {
+    throw new Error("获取统计信息失败。");
+  }
+
+  return response.json();
+}
+
+export async function incrementGenerationCount(templateId: string): Promise<StatsResponse> {
+  const response = await fetch(buildStatsApiUrl("/api/generate-count"), {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify({ templateId }),
+  });
+
+  if (!response.ok) {
+    throw new Error("记录生成次数失败。");
+  }
+
+  return response.json();
+}