# SimVision - Files Created

This document lists all files created during the initial implementation.

**Date**: 2026-01-08
**Total Files**: 27 (24 Swift + 3 Documentation)

---

## Documentation Files (3)

| File | Purpose |
|------|---------|
| `README.md` | Project overview, setup instructions, features |
| `ARCHITECTURE.md` | Comprehensive system architecture documentation |
| `NEXT_STEPS.md` | Step-by-step Xcode project setup guide |

---

## Swift Source Files (24)

### App Layer (2 files)

| File | Purpose | Lines |
|------|---------|-------|
| `simvision/App/simvisionApp.swift` | Application entry point with WindowGroup | ~20 |
| `simvision/App/AppState.swift` | Global state coordinator (ObservableObject) | ~100 |

### Models (4 files)

| File | Purpose | Lines |
|------|---------|-------|
| `simvision/Models/Credentials.swift` | Authentication and XStream credential models | ~40 |
| `simvision/Models/VODItem.swift` | VOD item data model | ~45 |
| `simvision/Models/Playlist.swift` | Playlist container with categories | ~40 |
| `simvision/Models/APIResponse.swift` | API response models | ~15 |

### Services (4 files)

| File | Purpose | Lines |
|------|---------|-------|
| `simvision/Services/NetworkService.swift` | Core HTTP client (Actor) | ~120 |
| `simvision/Services/AuthenticationService.swift` | Authentication flow management (Actor) | ~60 |
| `simvision/Services/PlaylistService.swift` | Playlist fetching and caching (Actor) | ~55 |
| `simvision/Services/StorageService.swift` | Keychain and UserDefaults wrapper (Actor) | ~120 |

### Parsers (1 file)

| File | Purpose | Lines |
|------|---------|-------|
| `simvision/Parsers/M3UParser.swift` | M3U playlist parser for XStream format | ~105 |

### ViewModels (3 files)

| File | Purpose | Lines |
|------|---------|-------|
| `simvision/ViewModels/AuthenticationViewModel.swift` | Password entry view logic | ~20 |
| `simvision/ViewModels/VODLibraryViewModel.swift` | VOD library filtering and search | ~35 |
| `simvision/ViewModels/VideoPlayerViewModel.swift` | Video player lifecycle management | ~50 |

### Views (7 files)

| File | Purpose | Lines |
|------|---------|-------|
| `simvision/Views/Authentication/PasswordEntryView.swift` | Login screen with password entry | ~125 |
| `simvision/Views/Main/MainTabView.swift` | Root navigation TabView | ~20 |
| `simvision/Views/Main/VODLibraryView.swift` | VOD content grid with filtering | ~165 |
| `simvision/Views/Detail/VODDetailView.swift` | Video detail screen with metadata | ~115 |
| `simvision/Views/Player/VideoPlayerView.swift` | Full-screen video player | ~65 |
| `simvision/Views/Components/VODCardView.swift` | Reusable VOD thumbnail card | ~75 |
| `simvision/Views/Components/LoadingView.swift` | Loading indicator component | ~25 |
| `simvision/Views/Components/ErrorView.swift` | Error display with retry/dismiss | ~95 |

### Utilities (3 files)

| File | Purpose | Lines |
|------|---------|-------|
| `simvision/Utilities/Constants.swift` | App-wide constants and configuration | ~45 |
| `simvision/Utilities/NetworkError.swift` | Custom error types with localized messages | ~70 |
| `simvision/Utilities/Extensions.swift` | Swift extensions for String, URL, View, Data, Error | ~80 |

---

## File Statistics

**Total Lines of Code**: ~1,680 (approximate)

**By Category**:
- Views: ~685 lines (41%)
- Services: ~355 lines (21%)
- Parsers: ~105 lines (6%)
- Models: ~140 lines (8%)
- ViewModels: ~105 lines (6%)
- Utilities: ~195 lines (12%)
- App: ~120 lines (7%)

**File Size Distribution**:
- Small (<50 lines): 7 files
- Medium (50-100 lines): 10 files
- Large (100-200 lines): 7 files

---

## Directory Structure

```
simvision/
├── README.md
├── ARCHITECTURE.md
├── NEXT_STEPS.md
├── FILES_CREATED.md (this file)
└── simvision/
    ├── App/
    │   ├── simvisionApp.swift
    │   └── AppState.swift
    ├── Models/
    │   ├── Credentials.swift
    │   ├── VODItem.swift
    │   ├── Playlist.swift
    │   └── APIResponse.swift
    ├── Views/
    │   ├── Authentication/
    │   │   └── PasswordEntryView.swift
    │   ├── Main/
    │   │   ├── MainTabView.swift
    │   │   └── VODLibraryView.swift
    │   ├── Detail/
    │   │   └── VODDetailView.swift
    │   ├── Player/
    │   │   └── VideoPlayerView.swift
    │   └── Components/
    │       ├── VODCardView.swift
    │       ├── LoadingView.swift
    │       └── ErrorView.swift
    ├── Services/
    │   ├── NetworkService.swift
    │   ├── AuthenticationService.swift
    │   ├── PlaylistService.swift
    │   └── StorageService.swift
    ├── Parsers/
    │   └── M3UParser.swift
    ├── ViewModels/
    │   ├── AuthenticationViewModel.swift
    │   ├── VODLibraryViewModel.swift
    │   └── VideoPlayerViewModel.swift
    └── Utilities/
        ├── Constants.swift
        ├── Extensions.swift
        └── NetworkError.swift
```

---

## Key Technologies Used

- **Language**: Swift 5.9+
- **Framework**: SwiftUI
- **Concurrency**: async/await, Actor isolation
- **Video**: AVKit (AVPlayer, AVPlayerViewController)
- **Networking**: URLSession with async/await
- **Storage**: Keychain (Security framework), UserDefaults
- **Architecture**: MVVM with centralized state management

---

## Implementation Highlights

### Modern Swift Features

1. **Actor Isolation**: All services are actors for thread safety
2. **Async/Await**: All asynchronous operations use modern concurrency
3. **@MainActor**: UI components isolated to main thread
4. **Property Wrappers**: @Published, @StateObject, @EnvironmentObject

### SwiftUI Patterns

1. **Environment Objects**: AppState injected throughout view hierarchy
2. **Navigation**: NavigationStack with value-based navigation
3. **Focus Engine**: @FocusState for tvOS remote navigation
4. **Async Image**: AsyncImage for remote image loading

### Security Practices

1. **Keychain Storage**: Sensitive credentials encrypted by system
2. **No Password Storage**: User password never persisted
3. **Error Handling**: Comprehensive error types with user-friendly messages
4. **URL Validation**: All URLs validated before use

### tvOS Optimizations

1. **Focus States**: Visual feedback for focused items (scale, shadows)
2. **Large Touch Targets**: Buttons and cards sized for remote navigation
3. **Card-Based UI**: Grid layouts with large thumbnails
4. **Native Controls**: AVPlayerViewController for video playback

---

## Code Quality

### Principles Followed

- ✅ Single Responsibility Principle
- ✅ Dependency Injection via protocols and actors
- ✅ Error handling at every layer
- ✅ Thread safety via actor isolation
- ✅ Type safety with strong typing and Codable
- ✅ Separation of concerns (MVVM)

### Testing Ready

All major components are testable:
- Services are actors with clear interfaces
- ViewModels are ObservableObjects with testable logic
- Models conform to Codable for serialization testing
- Parsers are pure functions

---

## What is NOT Included

The following must be created separately:

1. **Xcode Project File** (`.xcodeproj`)
   - Create manually following NEXT_STEPS.md

2. **App Icon**
   - Required size: 1280x768 pixels for tvOS

3. **Launch Screen**
   - Can be added via Xcode storyboard

4. **Tests**
   - Unit tests and UI tests can be added

5. **CI/CD Configuration**
   - GitHub Actions, Fastlane, etc.

6. **Web Service Implementation**
   - Authentication endpoint must be created

---

## Verification Commands

To verify all files are present:

```bash
# Count Swift files
find simvision -name "*.swift" | wc -l
# Expected: 24

# Count documentation files
ls *.md | wc -l
# Expected: 4 (README, ARCHITECTURE, NEXT_STEPS, FILES_CREATED)

# List all Swift files
find simvision -name "*.swift" | sort

# Check directory structure
tree simvision -L 3
```

---

## Modification History

| Date | Change | Files Affected |
|------|--------|----------------|
| 2026-01-08 | Initial implementation | All 27 files created |

---

## Future File Additions

When implementing additional features:

### Live TV Feature
- `simvision/Models/LiveItem.swift`
- `simvision/Views/Main/LiveTVView.swift`
- `simvision/ViewModels/LiveTVViewModel.swift`

### EPG Feature
- `simvision/Models/EPGItem.swift`
- `simvision/Services/EPGService.swift`
- `simvision/Views/EPG/EPGView.swift`

### Favorites Feature
- `simvision/Models/Favorites.swift`
- `simvision/Services/FavoritesService.swift`
- Update VODLibraryViewModel with favorites filtering

### Search Feature
- `simvision/Views/Main/SearchView.swift`
- `simvision/ViewModels/SearchViewModel.swift`

---

**Documentation Status**: Complete
**Code Status**: Implementation complete, requires Xcode project setup
**Next Action**: Follow NEXT_STEPS.md to create Xcode project
