From fda3ccc6198bf1ecb48e1b095ab1c82f40f714f1 Mon Sep 17 00:00:00 2001
From: dangered wolf <d@ngeredwolf.me>
Date: Thu, 19 Oct 2023 01:40:59 -0400
Subject: [PATCH] Assign mosaic load balancing based on id
---
src/helpers/mosaic.ts | 22 ++++++++++++++++------
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/src/helpers/mosaic.ts b/src/helpers/mosaic.ts
index 44e5c60..e686269 100644
--- a/src/helpers/mosaic.ts
+++ b/src/helpers/mosaic.ts
@@ -1,16 +1,26 @@
import { Constants } from '../constants';
+const getDomain = (twitterId: string): string | null => {
+ const mosaicDomains = Constants.MOSAIC_DOMAIN_LIST;
+
+ if (mosaicDomains.length === 0) {
+ return null;
+ }
+
+ let hash = 0;
+ for (let i = 0; i < twitterId.length; i++) {
+ const char = twitterId.charCodeAt(i);
+ hash = (hash << 5) - hash + char;
+ }
+ return mosaicDomains[Math.abs(hash) % mosaicDomains.length];
+}
+
/* Handler for mosaic (multi-image combiner) */
export const handleMosaic = async (
mediaList: APIPhoto[],
id: string
): Promise<APIMosaicPhoto | null> => {
- const mosaicDomains = Constants.MOSAIC_DOMAIN_LIST;
- let selectedDomain: string | null = null;
- while (selectedDomain === null && mosaicDomains.length > 0) {
- const domain = mosaicDomains[Math.floor(Math.random() * mosaicDomains.length)];
- selectedDomain = domain;
- }
+ const selectedDomain: string | null = getDomain(id);
/* Fallback if there are no Mosaic servers */
if (selectedDomain === null) {