- docs: drop stale /master route refs (system-architecture page flow, client-only file list, basePath profiles; pdr architecture section + acceptance items; codebase-summary mounted-on notes; code-standards link example; deployment-guide redirect explanation) - roadmap: drop "Currently Implemented Features" section (lives in git log + plans + pdr/codebase-summary) - jsconfig: extend .svelte-kit/tsconfig.json (clears SvelteKit warning, picks up generated paths/aliases)
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Development Roadmap
This document tracks future work only. Completed features live in
git commit history and plans/, not here. For "what's in the app right
now", see docs/project-overview-pdr.md and docs/codebase-summary.md.
Idea Phase
Sound Effects on Bingo
Play celebratory chime or "Kinh!" voice snippet when row completes. Could use Web Audio API or <audio> tag. Status: Idea (no demand yet)
Undo Last Cell
Allow player to undo the most recent cross/uncross action. Requires change history or state snapshot. Status: Idea (low priority)
PWA Install
Add service worker and manifest for "Install App" prompt on Android/iOS. Status: Idea (would require server-side components)
Considered Phase
Multiplayer Sync (Real-time)
Host and players connect via WebSocket to sync called numbers and state. Requires backend server. Would enable:
- Decoupled devices (players' phones, host's laptop on big screen)
- Remote tournaments
- Master board auto-updates all players in real-time
Consideration: Out of scope for static export. Requires major refactor (SvelteKit API routes + WebSocket server). Deferred indefinitely.
i18n Beyond Vietnamese
Internationalization (English, Chinese, etc.). Requires extraction of all Vietnamese strings and i18n library (next-intl). Status: Considered (low demand for non-Vietnamese users)
Undo/Redo System
Full undo/redo stack with history navigation. Adds complexity to state management. Status: Considered (YAGNI for now)
Testing
Component Tests (Planned)
- PlayerBoard with mocked localStorage, $state/$derived verification
- MasterPanel with different game states
E2E Tests
- Player flow: generate card → click cells → verify bingo popup
- Host flow: new game → draw numbers → verify board state
Tech: Playwright
Future Enhancements (Speculative)
Export/Import Card
Allow player to export their grid as image or JSON, import someone else's card. Use Canvas API or print-friendly CSS.
Leaderboard / Stats
Track games won, time per bingo, etc. Requires server-side persistence. Out of scope for static export.
Accessibility Improvements
- ARIA labels for grid cells
- Keyboard navigation (arrow keys to move, Enter to toggle)
- Screen reader support
Custom Number Range
Host selects range (e.g., 1–75 for American bingo) instead of hardcoded 1–90. Requires config UI and refactor of game logic constants. Out of scope per Lô tô hội chợ Tân Tân focus.
Different Grid Sizes
Support 8×8 or 10×10 grids, or 3×9 European Bingo 90 tickets. Out of scope — variant locked to 9×9 Tân Tân format.
Two-line / Full-house Win Tiers
European Bingo 90 patterns. Out of scope — Tân Tân uses single-line "Kinh!" only.
Decision Rationale
All decisions follow YAGNI (You Aren't Gonna Need It), KISS (Keep It Simple), DRY (Don't Repeat Yourself):
- No multiplayer sync → adds server dependency, breaks static export (Cloudflare Pages)
- No i18n → Vietnamese-only community, localizing adds complexity
- Unit tests implemented → critical paths (constraints, persistence, settings) now have automated coverage
- Component/E2E tests deferred → small codebase, manual testing sufficient for UI flows
- No undo/redo → simple game, mistakes are play experience
- Svelte 5 runes → cleaner reactivity than hooks, smaller mental model
Future work gates on real user demand, not speculation.
Last reviewed: 2026-04-27 Last synced: 2026-04-27 (6-phase refactor)