From 32e2f327ff0a90b0647af6da4438cd354594b187 Mon Sep 17 00:00:00 2001
From: dargy <dragonismbot@protonmail.com>
Date: Mon, 2 Sep 2024 14:24:08 -0500
Subject: [PATCH] fix: long descriptions exceeding 256 character limit #15

---
 src/templates/pages/VideoResponse.tsx |  3 ++-
 src/tests/main.test.ts                | 20 --------------------
 src/tests/video.test.ts               |  2 +-
 src/util/generateAlternate.tsx        | 15 +++++++++++++--
 wrangler.toml                         |  1 +
 5 files changed, 17 insertions(+), 24 deletions(-)
 delete mode 100644 src/tests/main.test.ts

diff --git a/src/templates/pages/VideoResponse.tsx b/src/templates/pages/VideoResponse.tsx
index f2ff783..cace93d 100644
--- a/src/templates/pages/VideoResponse.tsx
+++ b/src/templates/pages/VideoResponse.tsx
@@ -1,6 +1,7 @@
 import MetaHelper from '../../util/metaHelper'
 import { ItemStruct } from '../../types/Web'
 import { formatNumber } from '../../util/format'
+import { Buffer } from 'node:buffer';
 
 export function VideoResponse(data: ItemStruct, addDesc: Boolean): JSX.Element {
   let videoUrl = 'https://fxtiktok-rewrite.dargy.workers.dev/generate/video/' + data.id
@@ -118,7 +119,7 @@ export function VideoResponse(data: ItemStruct, addDesc: Boolean): JSX.Element {
         {
           unique_id: data.author.uniqueId,
           nickname: data.author.nickname,
-          ...(addDesc ? { description: data.desc } : {})
+          ...(addDesc ? { description: Buffer.from(data.desc).toString('base64') } : {})
         }
       )}
     </>
diff --git a/src/tests/main.test.ts b/src/tests/main.test.ts
deleted file mode 100644
index ad79b75..0000000
--- a/src/tests/main.test.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import app from '@/index'
-
-describe('GET /test/:videoId', () => {
-  it('should return 200', async () => {
-    const res = await app.request('/test/7332187682480590112', {
-      method: 'GET'
-    })
-
-    expect(res.status).toBe(200)
-  })
-
-  it('should return 500', async () => {
-    const res = await app.request('/test/123', {
-      method: 'GET'
-    })
-
-    expect(res.status).toBe(500)
-    expect(await res.text()).toBe('Could not parse video info')
-  })
-})
diff --git a/src/tests/video.test.ts b/src/tests/video.test.ts
index 3bc3752..fc526cc 100644
--- a/src/tests/video.test.ts
+++ b/src/tests/video.test.ts
@@ -79,4 +79,4 @@ describe('GET /generate/video/:videoId', () => {
 
     expect(res.status).toBe(500)
   })
-})
+})
\ No newline at end of file
diff --git a/src/util/generateAlternate.tsx b/src/util/generateAlternate.tsx
index 4ecee8f..a2610ac 100644
--- a/src/util/generateAlternate.tsx
+++ b/src/util/generateAlternate.tsx
@@ -1,4 +1,5 @@
 import { Context } from 'hono'
+import { Buffer } from 'node:buffer';
 
 export default function generateAlternate(c: Context): {
   version: string
@@ -12,13 +13,23 @@ export default function generateAlternate(c: Context): {
   const { unique_id, nickname, description } = c.req.query()
   const showSponsor = Math.random() < 0.01 // 1 in 100 chance to show sponsor message, gotta break even somehow
 
+  const decodedDescription = description
+    ? decodeURIComponent(Buffer.from(decodeURIComponent(description), 'base64').toString('utf-8'))
+    : '';
+
+  // Some Discord embed values are limited to 256 characters, truncate if necessary
+  // See more: https://www.pythondiscord.com/pages/guides/python-guides/discord-embed-limits/
+  const truncatedDescription = decodedDescription.length > 256
+    ? decodedDescription.substring(0, 253) + '...'
+    : decodedDescription;
+
   return {
     version: '1.0',
     type: 'link',
     author_name: `${decodeURIComponent(nickname)} (@${decodeURIComponent(unique_id)})`,
     author_url: `https://www.tiktok.com${unique_id ? '/@' + unique_id : ''}`,
-    provider_name: `${description ? '\n\n' + decodeURIComponent(description) : showSponsor ? 'Use fxTikTok often? Consider supporting us on GitHub!' : 'fxTikTok - Embed with s/i/n'}`,
+    provider_name: truncatedDescription || (showSponsor ? 'Use fxTikTok often? Consider supporting us on GitHub!' : 'fxTikTok - Embed with s/i/n'),
     provider_url: showSponsor ? 'https://github.com/sponsors/okdargy' : 'https://github.com/okdargy/fxTikTok',
-    title: `TikTok by @${unique_id}`
+    title: `TikTok by @${unique_id}`,
   }
 }
diff --git a/wrangler.toml b/wrangler.toml
index 5d4d3b0..238cd3b 100644
--- a/wrangler.toml
+++ b/wrangler.toml
@@ -1,6 +1,7 @@
 name = "fxtiktok-rewrite"
 compatibility_date = "2023-01-01"
 main = "src/index.ts"
+node_compat = true
 
 vars = { WORKER_ENV = "production", BASE_URL = "https://fxtiktok-rewrite.dargy.workers.dev" }