This commit completes the first phase of feature parity implementation and
resolves all API integration issues to match the backend API format.
## API Integration Fixes
- Remove all hardcoded default values from transformers (tick_rate, kast, player_count, steam_updated)
- Update TypeScript types to make fields optional where backend doesn't guarantee them
- Update Zod schemas to validate optional fields correctly
- Fix mock data to match real API response format (plain arrays, not wrapped objects)
- Update UI components to handle undefined values with proper fallbacks
- Add comprehensive API documentation for Match and Player endpoints
## Phase 1 Features Implemented (3/6)
### 1. Player Tracking System ✅
- Created TrackPlayerModal.svelte with auth code input
- Integrated track/untrack player API endpoints
- Added UI for providing optional share code
- Displays tracked status on player profiles
- Full validation and error handling
### 2. Share Code Parsing ✅
- Created ShareCodeInput.svelte component
- Added to matches page for easy match submission
- Real-time validation of share code format
- Parse status feedback with loading states
- Auto-redirect to match page on success
### 3. VAC/Game Ban Status ✅
- Added VAC and game ban count/date fields to Player type
- Display status badges on player profile pages
- Show ban count and date when available
- Visual indicators using DaisyUI badge components
## Component Improvements
- Modal.svelte: Added Svelte 5 Snippet types, actions slot support
- ThemeToggle.svelte: Removed deprecated svelte:component usage
- Tooltip.svelte: Fixed type safety with Snippet type
- All new components follow Svelte 5 runes pattern ($state, $derived, $bindable)
## Type Safety & Linting
- Fixed all ESLint errors (any types → proper types)
- Fixed form label accessibility issues
- Replaced error: any with error: unknown + proper type guards
- Added Snippet type imports where needed
- Updated all catch blocks to use instanceof Error checks
## Static Assets
- Migrated all files from public/ to static/ directory per SvelteKit best practices
- Moved 200+ map icons, screenshots, and other assets
- Updated all import paths to use /images/ (served from static/)
## Documentation
- Created IMPLEMENTATION_STATUS.md tracking all 15 missing features
- Updated API.md with optional field annotations
- Created MATCHES_API.md with comprehensive endpoint documentation
- Added inline comments marking optional vs required fields
## Testing
- Updated mock fixtures to remove default values
- Fixed mock handlers to return plain arrays like real API
- Ensured all components handle undefined gracefully
## Remaining Phase 1 Tasks
- [ ] Add VAC status column to match scoreboard
- [ ] Create weapons statistics tab for matches
- [ ] Implement recently visited players on home page
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- Add LegacyPlayerProfile transformer to handle API response format mismatch
- Transform avatar hashes to full Steam CDN URLs
- Map team IDs correctly (API 1/2 -> Schema 2/3)
- Calculate aggregate stats (avg_kills, avg_deaths, win_rate) from matches
- Reduce featured matches on homepage from 6 to 3
- Show 4 recent matches on player profile instead of 10
- Display recent matches in 4-column grid on desktop (side-by-side)
Fixes "Player not found" error for all player profiles.
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- Enable SSR for match pages by detecting server vs client context in API client
- Fix 500 errors on economy, chat, and details tabs by adding data loaders
- Handle unparsed matches gracefully with "Match Not Parsed" messages
- Fix dynamic team ID detection instead of hardcoding team IDs 2/3
- Fix DataTable component to properly render HTML in render functions
- Add fixed column widths to tables for visual consistency
- Add meta titles to all tab page loaders
- Fix Svelte 5 $derived syntax errors
- Fix ESLint errors (unused imports, any types, reactive state)
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Adds client-side sorting and filtering capabilities:
Sorting options:
- Date (newest/oldest)
- Duration (shortest/longest)
- Score difference (close games/blowouts)
- Toggle ascending/descending order
Result filters:
- All matches
- Wins only (Team A won)
- Losses only (Team B won)
- Ties only
Features:
- Reactive $derived computed matches list
- Shows filtered count vs total matches
- Empty state when no matches match filters
- Clear filter button when results are empty
- Works seamlessly with pagination (Load More)
Completes Phase 5.2 advanced features from TODO.md.
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JavaScript's Number type cannot accurately represent uint64 values exceeding
Number.MAX_SAFE_INTEGER (2^53-1). Converting these IDs to numbers causes
precision loss and API errors.
Root cause found:
- match/[id]/+layout.ts: `Number(params.id)` corrupted match IDs
- player/[id]/+page.ts: `Number(params.id)` corrupted player IDs
Example of the bug:
- URL param: "3638078243082338615" (correct)
- After Number(): 3638078243082339000 (rounded!)
- API response: "Match 3638078243082339000 not found"
Changes:
- Remove Number() conversions in route loaders
- Keep params.id as string throughout the application
- Update API functions to only accept string (not string | number)
- Update MatchesQueryParams.player_id type to string
- Add comprehensive transformers for legacy API responses
- Transform player stats: duo→mk_2, triple→mk_3, steamid64→id
- Build full Steam avatar URLs
- Make share_code optional (not always present)
This ensures uint64 IDs maintain full precision from URL → API → response.
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- Add pagination state management (matches, hasMore, nextPageTime)
- Create loadMore() function to fetch and append next page of results
- Replace placeholder "pagination coming soon" with functional Load More button
- Add loading spinner during pagination requests
- Show total matches count and "all loaded" message when complete
- Use $effect to reset pagination state when filters change
Completes Phase 5.2 pagination requirement from TODO.md.
Users can now browse through large match lists efficiently.
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- Create transformers.ts to convert legacy API format to new schema
- Transform score array [a, b] to score_team_a/score_team_b fields
- Convert Unix timestamps to ISO strings
- Map legacy field names (parsed, vac, game_ban) to new names
- Update matches API to use transformer with proper types
- Handle empty map names gracefully in homepage
- Limit featured matches to exactly 6 items
Fixes homepage data display issue where API format mismatch prevented
matches from rendering. API returns legacy CSGO:WTF format while frontend
expects new CS2.WTF schema.
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Implemented comprehensive performance analysis for player profiles with interactive charts
and detailed statistics visualization.
Key Features:
- Performance Trend Chart (K/D and KAST over last 15 matches)
- Map Performance Chart (win rate per map with color coding)
- Utility Effectiveness Stats (flash assists, enemies blinded, HE/flame damage)
- Responsive charts using Chart.js LineChart and BarChart components
Technical Updates:
- Enhanced page loader to fetch 15 detailed matches with player stats
- Fixed DataTable Svelte 5 compatibility and type safety
- Updated MatchCard and PlayerCard to use PlayerMeta properties
- Proper error handling and typed data structures
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Implemented a comprehensive CORS proxy solution that works with both
local and remote backends during development.
## Changes
### Vite Configuration (vite.config.ts)
- Use loadEnv() to properly read VITE_API_BASE_URL from .env
- Configure proxy to forward /api/* requests to backend
- Add detailed logging for proxy requests and responses
- Support changeOrigin, rewrite, secure=false, and websockets
### API Client (src/lib/api/client.ts)
- In development: Always use /api prefix (proxied)
- In production: Use direct VITE_API_BASE_URL
- Add console logging to show proxy configuration in dev mode
- Automatic detection of environment (DEV vs PROD)
### Error Handling (route loaders)
- Fix console.error() calls that caused TypeError with circular refs
- Use error.message instead of logging full error objects
- Affects: +page.ts, matches/+page.ts
### Documentation
- docs/LOCAL_DEVELOPMENT.md: Complete rewrite with proxy explanation
- Quick start guide for both production API and local backend
- Detailed proxy flow diagrams
- Comprehensive troubleshooting section
- Clear examples and logs
- docs/CORS_PROXY.md: Technical deep-dive on proxy implementation
- How the proxy works internally
- Configuration options explained
- Testing procedures
- Common issues and solutions
- .env.example: Updated with proxy documentation
## How It Works
Development Flow:
1. Frontend makes request: /api/matches
2. Vite proxy intercepts and forwards to: ${VITE_API_BASE_URL}/matches
3. Backend responds (no CORS headers needed)
4. Proxy returns response to frontend (same-origin)
Production Flow:
1. Frontend makes request directly to: https://api.csgow.tf/matches
2. Backend responds with CORS headers
3. Browser allows request (CORS enabled on backend)
## Benefits
✅ No CORS errors in development
✅ Works with local backend (localhost:8000)
✅ Works with remote backend (api.csgow.tf)
✅ Simple configuration (just set VITE_API_BASE_URL)
✅ Detailed logging for debugging
✅ Production build unaffected (direct requests)
## Testing
Verified with production API:
- curl https://api.csgow.tf/matches ✓
- Dev server proxy logs show successful forwarding ✓
- Browser Network tab shows /api/* requests ✓
- No CORS errors in console ✓
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Replace invalid {@const} usage with proper <svelte:component this={...}> syntax.
The {@const} tag must be an immediate child of specific block structures,
not directly inside regular HTML elements.
This commit implements significant portions of Phase 5 (Feature Delivery) including:
Chart Components (src/lib/components/charts/):
- LineChart.svelte: Line charts with Chart.js integration
- BarChart.svelte: Vertical/horizontal bar charts with stacking
- PieChart.svelte: Pie/Doughnut charts with legend
- All charts use Svelte 5 runes ($effect) for reactivity
- Responsive design with customizable options
Data Display Components (src/lib/components/data-display/):
- DataTable.svelte: Generic sortable, filterable table component
- TypeScript generics support for type safety
- Custom formatters and renderers
- Sort indicators and column alignment options
Match Detail Pages:
- Match layout with header, tabs, and score display
- Economy tab: Equipment value charts, buy type classification, round-by-round table
- Details tab: Multi-kill distribution charts, team performance, top performers
- Chat tab: Chronological messages with filtering, search, and round grouping
Additional Components:
- SearchBar, ThemeToggle (layout components)
- MatchCard, PlayerCard (domain components)
- Modal, Skeleton, Tabs, Tooltip (UI components)
- Player profile page with stats and recent matches
Dependencies:
- Installed chart.js for data visualization
- Created Svelte 5 compatible chart wrappers
Phase 4 marked as complete, Phase 5 at 50% completion.
Flashes and Damage tabs deferred for future implementation.
Note: Minor linting warnings to be addressed in follow-up commit.
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Phase 4 establishes the core application structure with SvelteKit routing,
data loading, error handling, and state management.
## Routing & Data Loading
- Created root layout load function (+layout.ts) with app version and feature flags
- Implemented comprehensive error boundary (+error.svelte) with status-based messages
- Added page loaders for homepage, matches, players, and about routes
- Homepage loader fetches featured matches via API with error fallback
- Matches loader supports URL query parameters (map, player_id, limit)
## State Management (Svelte Stores)
- preferences.ts: User settings with localStorage persistence
* Theme selection (cs2dark, cs2light, auto)
* Favorite players tracking
* Advanced stats toggle, date format preferences
- search.ts: Search state with recent searches (localStorage)
- toast.ts: Toast notification system with auto-dismiss
* Success, error, warning, info types
* Configurable duration and dismissibility
## UI Components
- Toast.svelte: Individual notification with Lucide icons
- ToastContainer.svelte: Fixed top-right toast display
- Integrated ToastContainer into root layout
## Fixes
- Fixed Svelte 5 deprecation warnings (removed <svelte:component> in runes mode)
- Updated homepage to use PageData from loader
- Added proper type safety across all load functions
## Testing
- Type check: 0 errors, 0 warnings
- Production build: Successful
- All Phase 4 core objectives completed
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Phase 3 (Domain Modeling & Data Layer) is now 100% complete:
- ✅ TypeScript interfaces for all data models
- ✅ Zod schemas with runtime validation
- ✅ API client with error handling and cancellation
- ✅ MSW mock handlers for testing
- Real-time features deferred to Phase 5
Now starting Phase 4: Application Architecture & Routing
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Implements comprehensive type system, runtime validation, API client,
and testing infrastructure for CS2.WTF.
TypeScript Interfaces (src/lib/types/):
- Match.ts: Match, MatchPlayer, MatchListItem types
- Player.ts: Player, PlayerMeta, PlayerProfile types
- RoundStats.ts: Round economy and performance data
- Weapon.ts: Weapon statistics with hit groups (HitGroup, WeaponType enums)
- Message.ts: Chat messages with filtering support
- api.ts: API responses, errors, and APIException class
- Complete type safety with strict null checks
Zod Schemas (src/lib/schemas/):
- Runtime validation for all data models
- Schema parsers with safe/unsafe variants
- Special handling for backend typo (looses → losses)
- Share code validation regex
- CS2-specific validations (rank 0-30000, MR12 rounds)
API Client (src/lib/api/):
- client.ts: Axios-based HTTP client with error handling
- Request cancellation support (AbortController)
- Automatic retry logic for transient failures
- Timeout handling (10s default)
- Typed APIException errors
- players.ts: Player endpoints (profile, meta, track/untrack, search)
- matches.ts: Match endpoints (parse, details, weapons, rounds, chat, search)
- Zod validation on all API responses
MSW Mock Handlers (src/mocks/):
- fixtures.ts: Comprehensive mock data for testing
- handlers/players.ts: Mock player API endpoints
- handlers/matches.ts: Mock match API endpoints
- browser.ts: Browser MSW worker for development
- server.ts: Node MSW server for Vitest tests
- Realistic responses with delays and pagination
- Safe integer IDs to avoid precision loss
Configuration:
- .env.example: Complete environment variable documentation
- src/vite-env.d.ts: Vite environment type definitions
- All strict TypeScript checks passing (0 errors, 0 warnings)
Features:
- Cancellable requests for search (prevent race conditions)
- Data normalization (backend typo handling)
- Comprehensive error types (NetworkError, Timeout, etc.)
- Share code parsing and validation
- Pagination support for players and matches
- Mock data for offline development and testing
Build Status: ✓ Production build successful
Type Check: ✓ 0 errors, 0 warnings
Lint: ✓ All checks passed
Phase 3 Completion: 100%
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Reflect backend audit findings in TODO.md:
- 12 REST endpoints documented for player, match, matches, and sitemap
- Data models aligned with backend schemas (Match, Player, MatchPlayer,
etc.)
- CS2 compatibility confirmed with Premier rating support (0-30000)
Add comprehensive API documentation covering:
- Endpoint specifications and response structures
- Integration guide with TypeScript examples
- Error handling and caching strategies
- CS2 migration notes for rank system and MR12 changes
