quixotic/.serena/memories/song_selection_issue_analysis.md

Song Selection Issue Analysis

Problem

• Production: Song selection says it will send to chat but doesn't actually send
• /start command works fine
• No errors in logs

Code Flow Analysis

Working /start Command (src/bot.ts:66-95)

1. User sends /start command
2. Bot receives via this.bot.onText(/\/start/)
3. Direct bot.sendMessage() call works

Broken Song Selection Flow

1. User selects song in Web App (public/script.ts:248)
2. Web App calls this.tg.sendData() with JSON payload
3. Should trigger web_app_data event in bot (src/bot.ts:159)
4. Bot should call sendAudioFile() method (src/bot.ts:224)

Key Differences

• /start: Direct Telegram command → immediate bot response
• Song selection: Web App → sendData() → web_app_data event → bot response

Potential Issues

1. this.tg.sendData() might not be working in production environment
2. web_app_data event handler might not be triggered
3. Web App URL environment variable mismatch
4. Telegram Web App integration issues in production

Next Steps

• Check production environment variables (WEB_APP_URL, TELEGRAM_BOT_TOKEN)
• Add logging to web_app_data handler
• Verify Telegram Web App configuration