From bc97dfb9735880317df2e4a17a944ced3fa2ac55 Mon Sep 17 00:00:00 2001
From: nicocayo <nicocayo@users.noreply.github.com>
Date: Tue, 30 Jun 2026 13:15:30 +0000
Subject: [PATCH] Generated with Hive: Fix Twitter handle regex to support
 trailing slashes in source detection

---
 src/lib/__tests__/source-detection.test.ts | 44 +++++++++++++++++++++-
 src/lib/source-detection.ts                |  2 +-
 2 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/src/lib/__tests__/source-detection.test.ts b/src/lib/__tests__/source-detection.test.ts
index 44e87a8..69ea5bc 100644
--- a/src/lib/__tests__/source-detection.test.ts
+++ b/src/lib/__tests__/source-detection.test.ts
@@ -1,5 +1,5 @@
 import { describe, it, expect, vi } from "vitest"
-import { detectSourceType, SOURCE_TYPES } from "../source-detection"
+import { detectSourceType, extractNameFromSource, SOURCE_TYPES } from "../source-detection"
 
 // Mock fetch for RSS probe (checkIfRSS) - default to non-RSS
 vi.stubGlobal("fetch", vi.fn().mockResolvedValue({
@@ -106,6 +106,48 @@ describe("detectSourceType", () => {
     })
   })
 
+  describe("Twitter Handle URLs", () => {
+    it("detects x.com/handle (no slash) as TWITTER_HANDLE", async () => {
+      expect(await detectSourceType("https://x.com/sama")).toBe(SOURCE_TYPES.TWITTER_HANDLE)
+    })
+
+    it("detects x.com/handle/ (trailing slash) as TWITTER_HANDLE", async () => {
+      expect(await detectSourceType("https://x.com/sama/")).toBe(SOURCE_TYPES.TWITTER_HANDLE)
+    })
+
+    it("detects twitter.com/handle (no slash) as TWITTER_HANDLE", async () => {
+      expect(await detectSourceType("https://twitter.com/sama")).toBe(SOURCE_TYPES.TWITTER_HANDLE)
+    })
+
+    it("detects twitter.com/handle/ (trailing slash) as TWITTER_HANDLE", async () => {
+      expect(await detectSourceType("https://twitter.com/sama/")).toBe(SOURCE_TYPES.TWITTER_HANDLE)
+    })
+
+    it("detects x.com/@handle (no slash) as TWITTER_HANDLE", async () => {
+      expect(await detectSourceType("https://x.com/@sama")).toBe(SOURCE_TYPES.TWITTER_HANDLE)
+    })
+
+    it("detects x.com/@handle/ (trailing slash) as TWITTER_HANDLE", async () => {
+      expect(await detectSourceType("https://x.com/@sama/")).toBe(SOURCE_TYPES.TWITTER_HANDLE)
+    })
+
+    it("detects x.com/handle/?ref=x (trailing slash + query) as TWITTER_HANDLE", async () => {
+      expect(await detectSourceType("https://x.com/sama/?ref=x")).toBe(SOURCE_TYPES.TWITTER_HANDLE)
+    })
+
+    it("detects x.com/handle/status/123 as TWEET (regression guard)", async () => {
+      expect(await detectSourceType("https://x.com/sama/status/123456")).toBe(SOURCE_TYPES.TWEET)
+    })
+
+    it("extractNameFromSource returns @sama for no-slash URL", () => {
+      expect(extractNameFromSource("https://x.com/sama", SOURCE_TYPES.TWITTER_HANDLE)).toBe("@sama")
+    })
+
+    it("extractNameFromSource returns @sama for trailing-slash URL", () => {
+      expect(extractNameFromSource("https://x.com/sama/", SOURCE_TYPES.TWITTER_HANDLE)).toBe("@sama")
+    })
+  })
+
   describe("arXiv Paper URLs", () => {
     it("detects arxiv.org/abs/<id> as ARXIV_PAPER", async () => {
       expect(await detectSourceType("https://arxiv.org/abs/2301.00001")).toBe(SOURCE_TYPES.ARXIV_PAPER)
diff --git a/src/lib/source-detection.ts b/src/lib/source-detection.ts
index 4d66cf6..23971f1 100644
--- a/src/lib/source-detection.ts
+++ b/src/lib/source-detection.ts
@@ -16,7 +16,7 @@ export const SOURCE_TYPES = {
 export type SourceType = (typeof SOURCE_TYPES)[keyof typeof SOURCE_TYPES]
 
 const twitterHandlePattern =
-  /\b(?:twitter\.com|x\.com)\/(?:@)?([\w_]+)(?:$|\?[^/]*$)/
+  /\b(?:twitter\.com|x\.com)\/(?:@)?([\w_]+)\/?(?:$|\?[^/]*$)/
 const youtubeRegex =
   /(https?:\/\/)?(www\.)?youtube\.com\/watch\?v=([A-Za-z0-9_-]+)/
 const youtubeLiveRegex =