From a3ba3f18fa783ef94e8800e512efc2018de1df5d Mon Sep 17 00:00:00 2001
From: Roman Tsisyk <roman@tsisyk.com>
Date: Thu, 19 Aug 2021 12:33:36 +0300
Subject: [PATCH] Route North America to BackBlaze + CF

---
 src/index.ts | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 4c4e731..45d15a8 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,7 +1,5 @@
 export {};
 
-const SERVERS = ['https://cdn-eu1.organicmaps.app/', 'https://cdn-eu2.organicmaps.app/', 'https://cdn.organicmaps.app/'];
-
 addEventListener('fetch', (event) => {
   event.respondWith(handleRequest(event.request).catch((err) => new Response(err.stack, { status: 500 })));
 });
@@ -10,10 +8,28 @@ async function handleRequest(request: Request) {
   const { pathname } = new URL(request.url);
 
   switch (pathname) {
-    case '/servers':
-      return new Response(JSON.stringify(SERVERS), {
+    case '/servers': {
+      let servers;
+      switch (request.cf?.continent) {
+        case 'NA': // North America
+          servers = [
+            'https://cdn4.organicmaps.app/', // BackBlaze US-West + CF, unmetered
+            'https://cdn.organicmaps.app/', // Hetzner BareMetal DE unmetered
+          ];
+          break;
+        default:
+          // Everything else
+          servers = [
+            'https://cdn-pl1.organicmaps.app/', // OVH PL, unmetered
+            'https://cdn-fi1.organicmaps.app/', // Hetzner Cloud FI, 20TB
+            'https://cdn-eu2.organicmaps.app/', // Hetzner Cloud DE, 20TB
+            'https://cdn.organicmaps.app/', // Hetzner BareMetal DE unmetered
+          ];
+      }
+      return new Response(JSON.stringify(servers), {
         headers: { 'Content-Type': 'application/json' },
       });
+    }
   }
   return new Response('', { status: 404 });
 }