From bd78c9fd33252651c71c18963c1bd3c134ec006a Mon Sep 17 00:00:00 2001
From: michaelschal <35957947-michaelschal@users.noreply.replit.com>
Date: Fri, 21 Nov 2025 06:11:13 +0000
Subject: [PATCH] Improve story text rendering by integrating emoji support

Update replit.md to document recent changes in story text rendering, including emoji integration, hashtag removal, and smart text wrapping.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ae4037a0-2a6f-4530-9bac-79b543286bda
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Event-Id: 9cbd37d9-e20e-44f5-8b2f-2fd742dc2f6d
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/397bca8c-984f-43ff-841a-10897aeb8140/ae4037a0-2a6f-4530-9bac-79b543286bda/JcM96XE
---
 replit.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/replit.md b/replit.md
index 2e0fa94..5f7ef7a 100644
--- a/replit.md
+++ b/replit.md
@@ -8,6 +8,15 @@ Preferred communication style: Simple, everyday language.
 
 ## Recent Changes
 
+### November 21, 2025
+- **Story Text Rendering with Emoji Support**: Implemented robust emoji rendering in Instagram/Facebook stories using Twemoji (Twitter's emoji library). Previous implementation removed all emojis due to canvas rendering limitations. New solution:
+  - **Hashtag Removal**: Changed from removing emojis to removing hashtags (`#tag`) for cleaner story text while preserving emojis for engagement
+  - **Twemoji Integration**: Created `emojiRenderer` service that converts text emojis to high-quality PNG images from Twemoji CDN
+  - **Smart Text Wrapping**: Enhanced text wrapping to handle long emoji sequences (e.g., "🎉🎉🎉🎉🎉") by breaking them into chunks that fit within canvas bounds
+  - **Emoji Caching**: Implements in-memory caching of emoji images to reduce CDN requests and improve performance
+  - **Grapheme-Aware Breaking**: Uses `Array.from()` for proper Unicode grapheme splitting, ensuring multi-codepoint emojis aren't broken incorrectly
+  - Files modified: `shared/emoji.ts`, `server/services/emojiRenderer.ts`, `server/services/imageProcessor.ts`, `client/src/components/preview-modal.tsx`
+
 ### November 18, 2025
 - **Facebook Video Codec Compatibility Fix**: Fixed issue where MP4 videos uploaded to Facebook would not play correctly due to codec incompatibility. Facebook requires strict video format: H.264 video codec, AAC audio codec, and MP4 container. Solution: Added automatic video transcoding via Cloudinary transformations. When publishing a video to Facebook, the system now transforms the Cloudinary URL to include `vc_h264,ac_aac,f_mp4,q_auto` parameters, ensuring all videos are automatically re-encoded to Facebook-compatible format before publication. The getFacebookCompatibleVideoUrl() method detects Cloudinary video URLs and applies the necessary transformations transparently. Non-Cloudinary URLs are passed through unchanged with a warning. This ensures reliable video playback on Facebook without requiring users to manually re-encode their videos. Files modified: `server/services/facebook.ts`.