feat: integrate Pi backend and Pi Web

2026-10-03 11:09:34 +00:00 · 2026-07-30 19:37:53 +08:00
commit 7392ab9dd7
1390 changed files with 337197 additions and 0 deletions
@@ -0,0 +1,78 @@
+import { NextResponse } from "next/server";
+import {
+  flattenModelsDevCatalog,
+  recommendModelCatalogPreset,
+  searchModelCatalog,
+  type ModelCatalogEntry,
+} from "@/lib/model-catalog";
+
+export const dynamic = "force-dynamic";
+
+const MODELS_DEV_URL = "https://models.dev/api.json";
+const CATALOG_TTL_MS = 60 * 60 * 1000;
+const FETCH_TIMEOUT_MS = 15_000;
+
+interface CatalogCache {
+  entries: ModelCatalogEntry[];
+  expiresAt: number;
+  inFlight?: Promise<ModelCatalogEntry[]>;
+}
+
+declare global {
+  var __piModelsDevCatalogCache: CatalogCache | undefined;
+}
+
+function getCache(): CatalogCache {
+  return globalThis.__piModelsDevCatalogCache ??= { entries: [], expiresAt: 0 };
+}
+
+async function fetchCatalog(): Promise<ModelCatalogEntry[]> {
+  const response = await fetch(MODELS_DEV_URL, {
+    cache: "no-store",
+    headers: { Accept: "application/json" },
+    signal: AbortSignal.timeout(FETCH_TIMEOUT_MS),
+  });
+  if (!response.ok) throw new Error(`models.dev returned HTTP ${response.status}`);
+  const entries = flattenModelsDevCatalog(await response.json());
+  if (entries.length === 0) throw new Error("models.dev returned an empty catalog");
+  return entries;
+}
+
+async function loadCatalog(): Promise<ModelCatalogEntry[]> {
+  const cache = getCache();
+  if (cache.entries.length > 0 && cache.expiresAt > Date.now()) return cache.entries;
+  if (!cache.inFlight) {
+    cache.inFlight = fetchCatalog().then((entries) => {
+      cache.entries = entries;
+      cache.expiresAt = Date.now() + CATALOG_TTL_MS;
+      return entries;
+    }).finally(() => {
+      cache.inFlight = undefined;
+    });
+  }
+
+  try {
+    return await cache.inFlight;
+  } catch (error) {
+    if (cache.entries.length > 0) return cache.entries;
+    throw error;
+  }
+}
+
+export async function GET(req: Request) {
+  const { searchParams } = new URL(req.url);
+  const query = (searchParams.get("q") ?? "").slice(0, 120);
+  const provider = (searchParams.get("provider") ?? "").slice(0, 120);
+  const baseUrl = (searchParams.get("baseUrl") ?? "").slice(0, 500);
+  const parsedLimit = Number.parseInt(searchParams.get("limit") ?? "50", 10);
+  const limit = Number.isFinite(parsedLimit) ? parsedLimit : 50;
+
+  try {
+    const entries = await loadCatalog();
+    const models = searchModelCatalog(entries, query, provider, limit);
+    const recommendation = recommendModelCatalogPreset(entries, query, provider, baseUrl);
+    return NextResponse.json({ models, recommendation, source: MODELS_DEV_URL });
+  } catch (error) {
+    return NextResponse.json({ error: error instanceof Error ? error.message : String(error) }, { status: 502 });
+  }
+}