From 7c0b6684482a998623a4ba845c73d77e43e66a6c Mon Sep 17 00:00:00 2001
From: Rizky <rizky05@gmail.com>
Date: Wed, 15 May 2024 13:25:12 +0700
Subject: [PATCH] add font

---
 pkgs/api/_font.ts | 62 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 pkgs/api/_font.ts

diff --git a/pkgs/api/_font.ts b/pkgs/api/_font.ts
new file mode 100644
index 0000000..9d1e53e
--- /dev/null
+++ b/pkgs/api/_font.ts
@@ -0,0 +1,62 @@
+import { apiContext } from "service-srv";
+
+const g = global as unknown as {
+  _font_cache: Record<string, { body: any; headers: any }>;
+};
+
+if (!g._font_cache) {
+  g._font_cache = {};
+}
+
+export const _ = {
+  url: "/_font/**",
+  async api() {
+    const { req } = apiContext(this);
+    const pathname = req.url.split("/_font").pop() || "";
+    const cache = g._font_cache[pathname];
+    if (cache) {
+      if (req.headers.get("accept-encoding")?.includes("gzip")) {
+        return new Response(Bun.gzipSync(cache.body), {
+          headers: {
+            "content-type": cache.headers["content-type"],
+            "content-encoding": "gzip",
+          },
+        });
+      } else {
+        return new Response(cache.body, {
+          headers: {
+            "content-type": cache.headers["content-type"],
+          },
+        });
+      }
+    }
+    let f: Response = null as any;
+    let raw = false;
+    if (pathname?.startsWith("/s/")) {
+      f = await fetch(`https://fonts.gstatic.com${pathname}`);
+      raw = true;
+    } else {
+      f = await fetch(`https://fonts.googleapis.com${pathname}`);
+    }
+    if (f) {
+      let body = null as any;
+
+      if (!raw) {
+        body = await f.text();
+        body = body.replaceAll("https://fonts.gstatic.com", "/_font");
+      } else {
+        body = await f.arrayBuffer();
+      }
+
+      g._font_cache[pathname] = { body, headers: {} };
+      f.headers.forEach((v, k) => {
+        g._font_cache[pathname].headers[k] = v;
+      });
+
+      const res = new Response(body);
+
+      res.headers.set("content-type", f.headers.get("content-type") || "");
+      return res;
+    }
+  },
+};