User App Created

[catchingstrays]

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[catchingstrays]

Code Review: User-Installable App Implementation

Overview ✅

Excellent implementation of Discord's user-installable app feature. This PR successfully adds:

• Global command deployment
• User account installation support
• Dual context support (DMs and servers)
• Global user linking alongside guild-specific linking
• New /roast command for instant roasting

Status: Ready to merge

Code Quality

Strengths

• Clean architecture with proper separation of concerns
• Backward compatible with existing guild functionality
• Comprehensive error handling with helpful user feedback
• Context-aware responses (DM vs server)
• README significantly improved and simplified
• All tests passing (ESLint + syntax checks)

Fixed Issues

• ✅ Line endings corrected (CRLF → LF)
• ✅ Unused imports removed (deployCommandsToGuild, saveUserLinks, isUserLinkedGlobally)
• ✅ All linting errors resolved
• ✅ Syntax validation passing

Implementation Details

Key Changes

1. index.js - Replaced per-guild deployment with global deployment on startup
2. link.js - Added handleGlobalLink() and handleGuildLink() methods for dual context
3. stats.js - Unified showStats() method works in both DMs and guilds, now public (not ephemeral)
4. roast.js - New command allowing users to roast themselves or others anywhere
5. tracker.js - Added DM support for /tracker check, status remains server-only
6. setup.js - Explicitly marked as guild-only with runtime check

Security

• Steam64 ID validation prevents injection attacks
• Permission checks properly implemented
• Context isolation between DM and guild environments

Performance

• Global deployment = single API call vs per-guild (significant improvement)
• Smart fallback logic (guild link → global link)
• Maintains existing API caching strategy

Recommendations for Future PRs

Optional Improvements

1. Consider caching global deployment to prevent rate limiting on frequent restarts
2. Extract duplicate stats fetching logic from link handlers into shared function
3. Add unit tests for new global linking functions
4. Consider making DM roasts ephemeral for privacy (currently public everywhere)

Test Results

• ESLint: ✅ 0 errors, 0 warnings
• Syntax Check: ✅ All files valid
• Ready for Production: Yes

Summary

This is a well-crafted feature addition that significantly enhances the bot's capabilities. The code is clean, maintainable, and follows best practices. Great work on the implementation!

Estimated Risk: Low
Code Quality: High
Merge Status: ✅ Ready to merge