diff --git a/IOS_APP_ARCHITECTURE.md b/IOS_APP_ARCHITECTURE.md new file mode 100644 index 0000000..fbdf554 --- /dev/null +++ b/IOS_APP_ARCHITECTURE.md @@ -0,0 +1,954 @@ +# iOS/iPadOS Application Architecture + +## Overview + +The iOS/iPadOS application will be a native Swift application providing users with access to the Deep Assistant AI platform. This app will integrate with the existing API Gateway infrastructure to provide a seamless mobile experience for accessing multiple LLM models, chat functionality, and other AI-powered features. + +**Target Platform**: iOS 16.0+ / iPadOS 16.0+ +**Language**: Swift 5.9+ +**UI Framework**: SwiftUI +**Architecture Pattern**: MVVM (Model-View-ViewModel) with Clean Architecture principles +**License**: Unlicense (public domain) + +--- + +## System Architecture + +### High-Level Architecture + +```mermaid +graph TB + subgraph iOS[iOS/iPadOS Device] + subgraph Presentation[Presentation Layer] + Views[SwiftUI Views] + ViewModels[ViewModels] + end + + subgraph Domain[Domain Layer] + UseCases[Use Cases] + Entities[Domain Entities] + end + + subgraph Data[Data Layer] + Repositories[Repositories] + LocalDB[(Core Data)] + KeychainStore[Keychain] + end + + subgraph Network[Network Layer] + APIClient[API Client] + AuthManager[Auth Manager] + WebSocket[WebSocket Client] + end + end + + subgraph Backend[Backend Services] + APIGateway[API Gateway] + Providers[LLM Providers] + end + + Views --> ViewModels + ViewModels --> UseCases + UseCases --> Repositories + Repositories --> LocalDB + Repositories --> KeychainStore + Repositories --> APIClient + APIClient --> AuthManager + APIClient --> APIGateway + APIGateway --> Providers + + style Presentation fill:#0088cc,stroke:#006699,stroke-width:3px,color:#fff + style Domain fill:#1b5e20,stroke:#4caf50,stroke-width:3px,color:#fff + style Data fill:#e65100,stroke:#ff6f00,stroke-width:3px,color:#fff + style Network fill:#4a148c,stroke:#9c27b0,stroke-width:3px,color:#fff + style Backend fill:#b71c1c,stroke:#f44336,stroke-width:3px,color:#fff +``` + +--- + +## Application Structure + +### Recommended Project Structure + +``` +DeepAssistant/ +├── DeepAssistant/ # Main app target +│ ├── App/ +│ │ ├── DeepAssistantApp.swift +│ │ ├── AppDelegate.swift +│ │ └── SceneDelegate.swift +│ │ +│ ├── Presentation/ +│ │ ├── Common/ +│ │ │ ├── Views/ +│ │ │ │ ├── LoadingView.swift +│ │ │ │ ├── ErrorView.swift +│ │ │ │ └── EmptyStateView.swift +│ │ │ └── Components/ +│ │ │ ├── MessageBubble.swift +│ │ │ ├── ModelPickerView.swift +│ │ │ └── BalanceIndicator.swift +│ │ │ +│ │ ├── Onboarding/ +│ │ │ ├── Views/ +│ │ │ └── ViewModels/ +│ │ │ +│ │ ├── Chat/ +│ │ │ ├── Views/ +│ │ │ │ ├── ChatView.swift +│ │ │ │ ├── MessageListView.swift +│ │ │ │ └── InputView.swift +│ │ │ └── ViewModels/ +│ │ │ └── ChatViewModel.swift +│ │ │ +│ │ ├── Models/ +│ │ │ ├── Views/ +│ │ │ │ └── ModelSelectionView.swift +│ │ │ └── ViewModels/ +│ │ │ └── ModelSelectionViewModel.swift +│ │ │ +│ │ ├── Balance/ +│ │ │ ├── Views/ +│ │ │ │ └── BalanceView.swift +│ │ │ └── ViewModels/ +│ │ │ └── BalanceViewModel.swift +│ │ │ +│ │ ├── Payment/ +│ │ │ ├── Views/ +│ │ │ │ └── PaymentView.swift +│ │ │ └── ViewModels/ +│ │ │ └── PaymentViewModel.swift +│ │ │ +│ │ ├── Settings/ +│ │ │ ├── Views/ +│ │ │ │ ├── SettingsView.swift +│ │ │ │ └── SystemMessageView.swift +│ │ │ └── ViewModels/ +│ │ │ └── SettingsViewModel.swift +│ │ │ +│ │ └── History/ +│ │ ├── Views/ +│ │ │ └── HistoryView.swift +│ │ └── ViewModels/ +│ │ └── HistoryViewModel.swift +│ │ +│ ├── Domain/ +│ │ ├── Entities/ +│ │ │ ├── Message.swift +│ │ │ ├── Conversation.swift +│ │ │ ├── AIModel.swift +│ │ │ ├── User.swift +│ │ │ └── TokenBalance.swift +│ │ │ +│ │ ├── UseCases/ +│ │ │ ├── SendMessageUseCase.swift +│ │ │ ├── GetConversationUseCase.swift +│ │ │ ├── ClearConversationUseCase.swift +│ │ │ ├── GetBalanceUseCase.swift +│ │ │ ├── SelectModelUseCase.swift +│ │ │ └── UpdateSystemMessageUseCase.swift +│ │ │ +│ │ └── Repositories/ +│ │ ├── ConversationRepository.swift +│ │ ├── UserRepository.swift +│ │ ├── ModelRepository.swift +│ │ └── PaymentRepository.swift +│ │ +│ ├── Data/ +│ │ ├── Repositories/ +│ │ │ ├── ConversationRepositoryImpl.swift +│ │ │ ├── UserRepositoryImpl.swift +│ │ │ ├── ModelRepositoryImpl.swift +│ │ │ └── PaymentRepositoryImpl.swift +│ │ │ +│ │ ├── DataSources/ +│ │ │ ├── Remote/ +│ │ │ │ ├── APIGatewayDataSource.swift +│ │ │ │ └── DTOs/ +│ │ │ │ ├── CompletionRequest.swift +│ │ │ │ ├── CompletionResponse.swift +│ │ │ │ ├── TokenResponse.swift +│ │ │ │ └── DialogResponse.swift +│ │ │ │ +│ │ │ └── Local/ +│ │ │ ├── ConversationDataSource.swift +│ │ │ ├── UserDataSource.swift +│ │ │ └── CoreDataStack.swift +│ │ │ +│ │ └── Models/ +│ │ ├── CoreData/ +│ │ │ ├── DeepAssistant.xcdatamodeld +│ │ │ ├── ConversationEntity.swift +│ │ │ ├── MessageEntity.swift +│ │ │ └── UserEntity.swift +│ │ │ +│ │ └── Network/ +│ │ └── NetworkModels.swift +│ │ +│ ├── Network/ +│ │ ├── APIClient.swift +│ │ ├── APIEndpoint.swift +│ │ ├── NetworkError.swift +│ │ ├── AuthManager.swift +│ │ ├── RequestBuilder.swift +│ │ └── ResponseHandler.swift +│ │ +│ ├── Common/ +│ │ ├── Extensions/ +│ │ │ ├── String+Extensions.swift +│ │ │ ├── View+Extensions.swift +│ │ │ └── Date+Extensions.swift +│ │ │ +│ │ ├── Utilities/ +│ │ │ ├── Logger.swift +│ │ │ ├── Constants.swift +│ │ │ └── KeychainHelper.swift +│ │ │ +│ │ └── DependencyInjection/ +│ │ ├── DIContainer.swift +│ │ └── ServiceLocator.swift +│ │ +│ └── Resources/ +│ ├── Assets.xcassets/ +│ ├── Localizable.strings (English) +│ ├── Localizable.strings (Russian) +│ ├── Info.plist +│ └── LaunchScreen.storyboard +│ +├── DeepAssistantTests/ +│ ├── Domain/ +│ ├── Data/ +│ ├── Network/ +│ └── Mocks/ +│ +└── DeepAssistantUITests/ + └── Flows/ +``` + +--- + +## Core Components + +### 1. Presentation Layer + +#### SwiftUI Views + +**ChatView.swift** - Main chat interface +- Message list with scrolling +- Input field with send button +- Model selection button +- Balance indicator +- Clear conversation button + +**ModelSelectionView.swift** - Model picker +- Grid/List of available models +- Model descriptions +- Energy cost indicators +- Favorites/recent models + +**BalanceView.swift** - Token balance display +- Current balance +- Usage history +- Purchase options link + +**SettingsView.swift** - App settings +- System message selection/customization +- Language selection +- Theme preferences (light/dark) +- Account management +- Clear cache + +#### ViewModels + +Using Combine framework for reactive data binding: + +```swift +class ChatViewModel: ObservableObject { + @Published var messages: [Message] = [] + @Published var isLoading: Bool = false + @Published var errorMessage: String? + @Published var currentModel: AIModel + @Published var balance: TokenBalance? + + private let sendMessageUseCase: SendMessageUseCase + private let getConversationUseCase: GetConversationUseCase + private var cancellables = Set() + + func sendMessage(_ content: String) async { + // Use case execution + } + + func loadConversation() async { + // Load conversation history + } +} +``` + +--- + +### 2. Domain Layer + +#### Entities + +**Message.swift** +```swift +struct Message: Identifiable { + let id: UUID + let content: String + let role: MessageRole + let timestamp: Date + let conversationId: UUID +} + +enum MessageRole { + case user + case assistant + case system +} +``` + +**AIModel.swift** +```swift +struct AIModel: Identifiable, Codable { + let id: String + let displayName: String + let provider: ModelProvider + let description: String + let energyCost: Double + let capabilities: ModelCapabilities + let contextWindow: Int +} + +enum ModelProvider: String { + case openai + case anthropic + case deepseek + case meta +} + +struct ModelCapabilities { + let supportsVision: Bool + let supportsStreaming: Bool + let supportsToolUse: Bool +} +``` + +**TokenBalance.swift** +```swift +struct TokenBalance { + let userId: String + let energyBalance: Int + let lastUpdated: Date +} +``` + +#### Use Cases + +**SendMessageUseCase.swift** +```swift +protocol SendMessageUseCase { + func execute( + content: String, + model: AIModel, + systemMessage: String? + ) async throws -> Message +} + +class SendMessageUseCaseImpl: SendMessageUseCase { + private let conversationRepository: ConversationRepository + private let userRepository: UserRepository + + func execute( + content: String, + model: AIModel, + systemMessage: String? + ) async throws -> Message { + // 1. Check balance + // 2. Create user message + // 3. Send to API Gateway + // 4. Receive AI response + // 5. Save both messages + // 6. Return assistant message + } +} +``` + +--- + +### 3. Data Layer + +#### Repositories (Implementation) + +**ConversationRepositoryImpl.swift** +```swift +class ConversationRepositoryImpl: ConversationRepository { + private let remoteDataSource: APIGatewayDataSource + private let localDataSource: ConversationDataSource + + func sendMessage( + userId: String, + content: String, + model: String, + systemMessage: String? + ) async throws -> Message { + // Call API Gateway /completions endpoint + let response = try await remoteDataSource.sendCompletion( + userId: userId, + content: content, + model: model, + systemMessage: systemMessage + ) + + // Save to local database + try await localDataSource.saveMessage(response.toMessage()) + + return response.toMessage() + } + + func getConversation(userId: String) async throws -> [Message] { + // Try local first, fallback to remote + if let local = try? await localDataSource.getMessages(userId: userId) { + return local + } + + let remote = try await remoteDataSource.getDialog(userId: userId) + return remote.messages.map { $0.toMessage() } + } + + func clearConversation(userId: String) async throws { + try await remoteDataSource.clearDialog(userId: userId) + try await localDataSource.clearMessages(userId: userId) + } +} +``` + +#### Core Data Models + +**ConversationEntity** +- id: UUID +- userId: String +- createdAt: Date +- updatedAt: Date +- relationship: messages (one-to-many) + +**MessageEntity** +- id: UUID +- content: String +- role: String +- timestamp: Date +- conversationId: UUID +- relationship: conversation (many-to-one) + +**UserEntity** +- id: String +- userName: String +- tokenBalance: Int +- selectedModel: String +- systemMessage: String +- createdAt: Date + +--- + +### 4. Network Layer + +#### API Client + +**APIClient.swift** +```swift +class APIClient { + private let baseURL: URL + private let authManager: AuthManager + private let session: URLSession + + func request( + _ endpoint: APIEndpoint, + method: HTTPMethod, + body: Encodable? = nil + ) async throws -> T { + var request = URLRequest(url: endpoint.url(baseURL: baseURL)) + request.httpMethod = method.rawValue + request.setValue("application/json", forHTTPHeaderField: "Content-Type") + + // Add authentication + if let token = authManager.adminToken { + request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization") + } + + // Add body + if let body = body { + request.httpBody = try JSONEncoder().encode(body) + } + + // Execute request + let (data, response) = try await session.data(for: request) + + // Handle response + guard let httpResponse = response as? HTTPURLResponse else { + throw NetworkError.invalidResponse + } + + guard 200...299 ~= httpResponse.statusCode else { + throw NetworkError.httpError(httpResponse.statusCode) + } + + return try JSONDecoder().decode(T.self, from: data) + } +} +``` + +#### API Endpoints + +**APIEndpoint.swift** +```swift +enum APIEndpoint { + case completions + case getToken(userId: String) + case updateToken(userId: String) + case getDialog(userId: String) + case clearDialog(userId: String) + case createReferral + case getReferralCount(userId: String) + + func url(baseURL: URL) -> URL { + switch self { + case .completions: + return baseURL.appendingPathComponent("/completions") + case .getToken(let userId): + return baseURL.appendingPathComponent("/token") + .appending(queryItems: [ + URLQueryItem(name: "userId", value: userId) + ]) + // ... other cases + } + } +} +``` + +--- + +## API Integration + +### API Gateway Integration + +The iOS app will communicate with the existing API Gateway using the same endpoints as the Telegram bot: + +#### Completions +```swift +POST {baseURL}/completions?masterToken={ADMIN_TOKEN} +Content-Type: application/json + +{ + "userId": "ios_user_12345", + "content": "Hello, AI!", + "systemMessage": "You are a helpful assistant.", + "model": "gpt-4o" +} +``` + +#### Token Management +```swift +GET {baseURL}/token?masterToken={ADMIN_TOKEN}&userId=ios_user_12345 + +Response: +{ + "id": "abc123...", + "user_id": "ios_user_12345", + "tokens_gpt": 8500 +} +``` + +#### Dialog Management +```swift +DELETE {baseURL}/dialog?masterToken={ADMIN_TOKEN}&userId=ios_user_12345 +GET {baseURL}/dialog?masterToken={ADMIN_TOKEN}&userId=ios_user_12345 +``` + +### Authentication Strategy + +**Option 1: Admin Token (Initial MVP)** +- Store admin token securely in Keychain +- Use for all API requests +- Simple but less secure + +**Option 2: User Tokens (Recommended)** +- Each iOS user gets their own token +- Token generated on first launch +- Stored in Keychain +- More secure, per-user tracking + +**Option 3: OAuth 2.0 (Future)** +- Full OAuth implementation +- Most secure +- Better for multi-device support + +--- + +## Features Breakdown + +### MVP (Minimum Viable Product) + +**Phase 1: Core Chat** +- [ ] User onboarding +- [ ] Chat interface (text only) +- [ ] Model selection (GPT-4o, GPT-3.5, Claude) +- [ ] Conversation history (local) +- [ ] Clear conversation +- [ ] Token balance display + +**Phase 2: Enhanced Features** +- [ ] System message customization +- [ ] Multiple conversation threads +- [ ] Sync conversation history with API Gateway +- [ ] Dark mode support +- [ ] Localization (English, Russian) + +**Phase 3: Advanced Features** +- [ ] Voice input (Siri/Whisper) +- [ ] Image generation (DALL-E) +- [ ] Markdown rendering +- [ ] Code syntax highlighting +- [ ] Export conversations +- [ ] iCloud sync + +**Phase 4: Premium Features** +- [ ] In-app purchases +- [ ] Subscription management +- [ ] Referral system +- [ ] Usage analytics +- [ ] Widgets +- [ ] Siri Shortcuts + +--- + +## User Flow + +### First Launch Flow + +```mermaid +flowchart TD + A[Launch App] --> B{First Time?} + B -->|Yes| C[Onboarding Screen] + B -->|No| D[Main Chat Screen] + + C --> E[Welcome Message] + E --> F[Feature Highlights] + F --> G[Request Permissions] + G --> H{Accept?} + + H -->|Yes| I[Generate User Token] + H -->|No| J[Limited Mode] + + I --> K[Get Initial Balance] + K --> D + J --> D + + style A fill:#0088cc,stroke:#006699,stroke-width:2px,color:#fff + style D fill:#1b5e20,stroke:#4caf50,stroke-width:2px,color:#fff +``` + +### Chat Flow + +```mermaid +sequenceDiagram + participant User + participant ChatView + participant ViewModel + participant UseCase + participant Repository + participant API + + User->>ChatView: Type message + ChatView->>ChatView: Tap send + ChatView->>ViewModel: sendMessage() + ViewModel->>ViewModel: Show loading + ViewModel->>UseCase: execute() + UseCase->>Repository: sendMessage() + Repository->>API: POST /completions + API-->>Repository: Response + Repository->>Repository: Save to local DB + Repository-->>UseCase: Message + UseCase-->>ViewModel: Message + ViewModel->>ViewModel: Update messages + ViewModel-->>ChatView: Refresh UI + ChatView-->>User: Show response +``` + +--- + +## Technical Considerations + +### Performance + +**Optimization Strategies**: +1. **Lazy Loading**: Load messages on-demand +2. **Pagination**: Load conversation history in chunks +3. **Caching**: Cache API responses using URLCache +4. **Image Optimization**: Compress and cache images +5. **Background Refresh**: Update balance in background + +### Offline Support + +**Offline Capabilities**: +- View conversation history (cached locally) +- Draft messages (send when online) +- Queue failed requests +- Offline indicator in UI + +### Security + +**Security Measures**: +1. **Keychain Storage**: Tokens, credentials +2. **SSL Pinning**: Prevent MITM attacks +3. **Encryption**: Encrypt local database +4. **Obfuscation**: Protect sensitive strings +5. **Jailbreak Detection**: Warn users + +### Accessibility + +**Accessibility Features**: +- VoiceOver support +- Dynamic Type support +- High contrast mode +- Reduced motion support +- Keyboard navigation + +--- + +## Dependencies + +### Swift Package Manager + +**Networking**: +- Alamofire (optional, for advanced networking) + +**Database**: +- Core Data (built-in) +- SQLite.swift (optional alternative) + +**UI**: +- SwiftUI (built-in) +- MarkdownUI (for message rendering) + +**Utilities**: +- KeychainAccess (secure storage) +- SwiftUIX (UI extensions) + +**Analytics** (optional): +- Firebase Analytics +- Mixpanel + +**Payments** (future): +- StoreKit 2 (built-in) +- RevenueCat (subscription management) + +--- + +## Testing Strategy + +### Unit Tests +- ViewModels +- Use Cases +- Repositories +- Network layer + +### Integration Tests +- API integration +- Database operations +- End-to-end flows + +### UI Tests +- Critical user flows +- Accessibility +- Different screen sizes + +### Manual Testing +- Device compatibility (iPhone, iPad) +- iOS versions (16.0 - latest) +- Network conditions +- Edge cases + +--- + +## Deployment + +### App Store Requirements + +**Metadata**: +- App Name: "Deep Assistant" +- Category: Productivity / Utilities +- Age Rating: 4+ (no objectionable content) +- Privacy Policy URL +- Support URL + +**Screenshots**: +- iPhone (6.7", 6.5", 5.5") +- iPad Pro (12.9", 11") +- Localizations: English, Russian + +**App Store Description**: +``` +Deep Assistant - Your Personal AI Companion + +Access powerful AI models including GPT-4, Claude, and more, all in one beautiful iOS app. + +Features: +• Chat with multiple AI models +• Customize AI behavior with system messages +• Track your usage with built-in token management +• Dark mode support +• iCloud sync across devices +• Privacy-focused - your data stays secure + +Whether you're brainstorming ideas, getting answers to complex questions, or just having a conversation, Deep Assistant is here to help. +``` + +### Build Configuration + +**Development** +- Debug symbols enabled +- Logging enabled +- Test API endpoints + +**Staging** +- Production-like environment +- Beta testing (TestFlight) +- Analytics enabled + +**Production** +- Optimizations enabled +- Logging minimal +- Production API endpoints + +--- + +## Monetization Strategy + +### Revenue Models + +**Option 1: Free with In-App Purchases** +- Free tier: 1000 tokens +- Token packs: 5000, 10000, 50000 +- StoreKit integration + +**Option 2: Freemium Subscription** +- Free tier: Limited models, ads +- Pro tier: All models, no ads, priority support +- Monthly/Annual subscriptions + +**Option 3: One-Time Purchase** +- Paid app with generous token allocation +- Additional tokens via IAP + +**Recommended**: Freemium with IAP for maximum reach + +--- + +## Roadmap + +### Q1 2025: MVP Development +- Core architecture setup +- Basic chat interface +- API Gateway integration +- Local data persistence +- Model selection + +### Q2 2025: Enhanced Features +- System message customization +- Multiple conversations +- Dark mode +- Localization +- TestFlight beta + +### Q3 2025: App Store Launch +- In-app purchases +- Subscription system +- App Store submission +- Marketing materials +- Public launch + +### Q4 2025: Advanced Features +- Voice input/output +- Image generation +- Widgets +- Siri Shortcuts +- iPad optimization + +--- + +## Risks and Mitigations + +| Risk | Impact | Mitigation | +|------|--------|-----------| +| API changes | High | Version API, maintain backward compatibility | +| App Store rejection | High | Follow guidelines strictly, prepare alternatives | +| Performance issues | Medium | Profiling, optimization, testing | +| Security vulnerabilities | High | Regular audits, security best practices | +| User adoption | Medium | Marketing, user feedback, iteration | +| Backend downtime | Medium | Offline mode, graceful degradation | + +--- + +## Success Metrics + +### KPIs (Key Performance Indicators) + +**User Engagement**: +- Daily Active Users (DAU) +- Monthly Active Users (MAU) +- Session duration +- Messages per session + +**Technical**: +- Crash-free rate (target: >99.5%) +- API response time (target: <2s) +- App launch time (target: <1s) + +**Business**: +- Conversion rate (free to paid) +- Average Revenue Per User (ARPU) +- Customer Lifetime Value (LTV) +- Retention rate (D1, D7, D30) + +--- + +## Open Questions + +These questions need clarification from stakeholders: + +1. **Authentication**: Should we use per-user tokens or shared admin token for MVP? +2. **Payment Provider**: Telegram Stars integration for iOS, or StoreKit exclusively? +3. **Feature Parity**: Should iOS have all features from Telegram bot, or start minimal? +4. **Branding**: App name, icon, color scheme - any existing brand guidelines? +5. **Backend Support**: Do we need any API Gateway modifications for iOS-specific needs? +6. **Referral System**: How should referrals work on iOS (deep links, promo codes)? +7. **Analytics**: What analytics platform should we integrate (if any)? +8. **Error Tracking**: Should we use Sentry, Crashlytics, or built-in solutions? + +--- + +## Next Steps + +1. **Gather Requirements**: Get answers to open questions from stakeholders +2. **Design Mockups**: Create UI/UX mockups for key screens +3. **Setup Project**: Initialize Xcode project with proper structure +4. **Implement Core**: Start with networking layer and domain models +5. **Build MVP**: Focus on core chat functionality +6. **TestFlight**: Internal testing and iteration +7. **App Store**: Submission and launch + +--- + +## License + +This application, like all Deep Assistant projects, will be released into the **public domain** under the [Unlicense](https://unlicense.org). + +--- + +## Contributors + +Deep.Assistant Team + +--- + +*Document version: 1.0.0* +*Last updated: 2025-10-30* diff --git a/IOS_IMPLEMENTATION_PLAN.md b/IOS_IMPLEMENTATION_PLAN.md new file mode 100644 index 0000000..0755d22 --- /dev/null +++ b/IOS_IMPLEMENTATION_PLAN.md @@ -0,0 +1,883 @@ +# iOS/iPadOS Application - Implementation Plan + +## Executive Summary + +This document outlines the detailed implementation plan for developing the Deep Assistant iOS/iPadOS application. The plan is structured in phases, with each phase delivering incremental value while building toward the complete application. + +**Timeline Estimate**: 12-16 weeks for MVP + Launch +**Team Size**: 1-2 iOS developers +**Priority**: Medium (per roadmap) +**Complexity**: Very High (per roadmap) + +--- + +## Prerequisites + +Before starting development, the following items must be completed: + +### 1. Requirements Clarification +- [ ] Confirm feature scope for MVP (see IOS_APP_ARCHITECTURE.md - Open Questions) +- [ ] Decide on authentication strategy (per-user tokens vs admin token) +- [ ] Define payment integration approach (StoreKit, Telegram Stars, or both) +- [ ] Establish branding guidelines (app name, icon, colors) +- [ ] Determine analytics/monitoring requirements + +### 2. Technical Setup +- [ ] Apple Developer Account (Team/Organization account recommended) +- [ ] Xcode 15.0+ installed +- [ ] CocoaPods or Swift Package Manager setup +- [ ] Git repository for iOS app code +- [ ] CI/CD pipeline (optional but recommended) +- [ ] TestFlight access for beta distribution + +### 3. Backend Preparation +- [ ] API Gateway accessible from iOS (HTTPS, valid SSL) +- [ ] Admin token or token generation endpoint available +- [ ] CORS configured for iOS (if using web views) +- [ ] API documentation reviewed and validated +- [ ] Test environment for development + +### 4. Design Assets +- [ ] UI/UX mockups for key screens +- [ ] App icon (multiple sizes) +- [ ] Launch screen design +- [ ] Color scheme and typography +- [ ] Assets for App Store (screenshots, preview video) + +--- + +## Development Phases + +### Phase 0: Project Setup (Week 1) + +**Objective**: Establish project foundation and development environment + +**Tasks**: +1. Create new Xcode project + - Project name: DeepAssistant (or final approved name) + - Bundle identifier: com.deepassistant.ios (or organization's) + - Minimum iOS version: 16.0 + - Interface: SwiftUI + - Language: Swift + - Include tests: Yes + +2. Setup project structure + - Create folder structure per architecture document + - Add .gitignore file + - Initialize Git repository + - Setup Swift Package Manager dependencies + +3. Configure build settings + - Development, Staging, Production schemes + - Code signing configuration + - Build configuration files + +4. Setup continuous integration (optional) + - GitHub Actions or Xcode Cloud + - Automated testing on PR + - Build verification + +5. Create basic project documentation + - README.md with setup instructions + - CONTRIBUTING.md with coding standards + - LICENSE (Unlicense) + +**Deliverable**: +- Working Xcode project with proper structure +- Basic documentation +- CI pipeline (if applicable) + +**Estimated Time**: 3-5 days + +--- + +### Phase 1: Core Infrastructure (Week 2-3) + +**Objective**: Implement foundational layers (Network, Data, Domain) + +**Tasks**: + +#### Network Layer +1. Implement APIClient + - URLSession-based HTTP client + - Request/Response handling + - Error mapping + +2. Create API endpoints enum + - All API Gateway endpoints + - Query parameter building + - URL construction + +3. Implement AuthManager + - Keychain integration for token storage + - Token retrieval and persistence + - Bearer token header injection + +4. Add network DTOs + - CompletionRequest/Response + - TokenResponse + - DialogResponse + - Error response models + +5. Write network layer tests + - Mock URLSession + - Test request building + - Test response parsing + +#### Data Layer +1. Setup Core Data stack + - Create data model (.xcdatamodeld) + - Define entities (User, Conversation, Message) + - Setup relationships + +2. Implement local data sources + - ConversationDataSource + - UserDataSource + - CRUD operations + +3. Implement remote data sources + - APIGatewayDataSource + - Map DTOs to domain entities + +4. Create repository implementations + - ConversationRepositoryImpl + - UserRepositoryImpl + - ModelRepositoryImpl + +5. Write data layer tests + - In-memory Core Data for testing + - Test CRUD operations + - Test data synchronization + +#### Domain Layer +1. Define domain entities + - Message + - Conversation + - AIModel + - User + - TokenBalance + +2. Create repository protocols + - ConversationRepository + - UserRepository + - ModelRepository + +3. Implement use cases + - SendMessageUseCase + - GetConversationUseCase + - ClearConversationUseCase + - GetBalanceUseCase + - SelectModelUseCase + +4. Write domain tests + - Test use case logic + - Mock repositories + - Test business rules + +**Deliverable**: +- Fully functional network layer +- Core Data integration +- Repository pattern implementation +- Comprehensive test coverage + +**Estimated Time**: 8-12 days + +--- + +### Phase 2: MVP UI Implementation (Week 4-5) + +**Objective**: Build core user interface for chat functionality + +**Tasks**: + +#### Onboarding +1. Create OnboardingView + - Welcome screen + - Feature highlights (3-4 pages) + - Permission requests + - Get started button + +2. Implement first-launch detection + - UserDefaults flag + - Navigation to appropriate screen + +#### Main Chat Interface +1. Create ChatView + - Message list (ScrollView) + - Input field + - Send button + - Loading indicator + +2. Implement MessageBubble component + - User messages (right-aligned, blue) + - AI messages (left-aligned, gray) + - Timestamp display + - Markdown rendering (basic) + +3. Add ChatViewModel + - Message state management + - Send message logic + - Loading states + - Error handling + +4. Implement message list features + - Auto-scroll to bottom + - Pull to refresh + - Empty state + - Loading state + +#### Navigation +1. Setup TabView navigation + - Chat tab + - History tab + - Settings tab + +2. Implement tab icons and labels + - SF Symbols for icons + - Localized labels + +#### Basic Settings +1. Create SettingsView + - User info display + - Model selection + - Clear conversation + - App version + - Logout + +2. Implement model selection + - List of available models + - Model descriptions + - Current selection indicator + +**Deliverable**: +- Functional chat interface +- Basic navigation +- Model selection +- Settings screen + +**Estimated Time**: 8-12 days + +--- + +### Phase 3: Feature Completion (Week 6-7) + +**Objective**: Complete MVP features and polish + +**Tasks**: + +#### Balance Management +1. Create BalanceView + - Current balance display + - Usage chart (optional) + - Top-up button + +2. Add balance indicator to ChatView + - Live balance updates + - Warning when low + - Link to purchase + +3. Implement balance refresh + - Pull to refresh + - Auto-refresh on app foreground + - Background refresh + +#### Conversation History +1. Create HistoryView + - List of conversations + - Search functionality + - Delete conversations + - Conversation preview + +2. Implement conversation switching + - Load conversation + - Continue existing conversation + - Create new conversation + +#### System Messages +1. Create SystemMessageView + - Predefined system messages + - Custom system message input + - Save/load from preferences + +2. Add system message to ChatViewModel + - Apply to completions + - Persist selection + +#### Error Handling +1. Create ErrorView component + - Display error messages + - Retry button + - Helpful error descriptions + +2. Implement error handling throughout + - Network errors + - API errors + - Validation errors + - User-friendly messages + +#### Loading States +1. Create LoadingView component + - Spinner + - Loading message + - Cancel option (for long requests) + +2. Add loading states to all views + - Skeleton screens + - Shimmer effects + - Progress indicators + +**Deliverable**: +- Complete MVP feature set +- Polished user experience +- Comprehensive error handling + +**Estimated Time**: 8-12 days + +--- + +### Phase 4: Localization & Accessibility (Week 8) + +**Objective**: Make app accessible and support multiple languages + +**Tasks**: + +#### Localization +1. Setup localization infrastructure + - Create Localizable.strings files + - English (base) + - Russian + +2. Localize all user-facing strings + - UI labels + - Error messages + - System messages + - Onboarding content + +3. Test language switching + - Verify all strings + - Check text layout + - RTL support (future) + +#### Accessibility +1. Add VoiceOver support + - Accessibility labels + - Accessibility hints + - Accessibility actions + +2. Implement Dynamic Type + - Scalable fonts + - Layout adjustments + - Test at different sizes + +3. Support accessibility features + - High contrast mode + - Reduced motion + - Button shapes + - Increase contrast + +4. Accessibility testing + - VoiceOver navigation + - Voice Control + - Accessibility Inspector + +**Deliverable**: +- Fully localized app (English, Russian) +- WCAG-compliant accessibility + +**Estimated Time**: 4-6 days + +--- + +### Phase 5: Testing & Bug Fixing (Week 9-10) + +**Objective**: Ensure app quality and stability + +**Tasks**: + +#### Unit Testing +1. Increase test coverage + - Target: 80%+ coverage + - ViewModels + - Use Cases + - Repositories + - Network layer + +2. Fix failing tests + - Debug issues + - Update tests as needed + +#### Integration Testing +1. Test API integration + - All endpoints + - Error scenarios + - Edge cases + +2. Test data persistence + - Core Data operations + - Migration scenarios + - Data integrity + +#### UI Testing +1. Create UI test suite + - Critical user flows + - Onboarding + - Send message + - Model selection + - Clear conversation + +2. Test on multiple devices + - iPhone SE (small screen) + - iPhone 14/15 (standard) + - iPhone 15 Pro Max (large) + - iPad Pro (tablet) + +3. Test different iOS versions + - iOS 16 + - iOS 17 + - iOS 18 (latest) + +#### Manual Testing +1. Exploratory testing + - Edge cases + - Unusual user behavior + - Network conditions (slow, offline) + +2. Performance testing + - App launch time + - Message sending latency + - Memory usage + - Battery drain + +3. Security testing + - Keychain integration + - SSL pinning + - Token security + - Data encryption + +#### Bug Fixing +1. Triage bugs + - Critical (blocks release) + - High (impacts UX) + - Medium (minor issues) + - Low (nice to have) + +2. Fix critical and high bugs + - Root cause analysis + - Fix implementation + - Test verification + - Regression testing + +**Deliverable**: +- Stable, tested application +- 80%+ test coverage +- All critical bugs fixed + +**Estimated Time**: 8-12 days + +--- + +### Phase 6: App Store Preparation (Week 11-12) + +**Objective**: Prepare app for App Store submission + +**Tasks**: + +#### App Store Assets +1. Create app icon + - Multiple sizes (1024x1024, etc.) + - Follow design guidelines + - No transparency, no alpha channel + +2. Design screenshots + - iPhone (6.7", 6.5", 5.5") + - iPad (12.9", 11") + - English and Russian + - Highlight key features + +3. Create preview video (optional) + - 15-30 seconds + - Showcase main features + - Localized versions + +#### App Store Listing +1. Write app description + - Primary language: English + - Secondary: Russian + - Clear, compelling copy + - Keywords for ASO + +2. Prepare metadata + - App name + - Subtitle + - Keywords + - Category + - Age rating + - Privacy policy URL + - Support URL + +3. Create privacy policy + - Data collection disclosure + - Third-party services + - User rights + - Host on GitHub Pages or website + +#### TestFlight Beta +1. Upload beta build + - Archive and upload + - Add beta testers + - Beta testing notes + +2. Internal testing + - Test installation + - Test core features + - Gather feedback + +3. External testing (optional) + - Invite external testers + - Collect feedback + - Iterate as needed + +#### App Review Preparation +1. Create App Review information + - Demo account (if needed) + - Notes for reviewer + - Contact information + +2. Review App Store guidelines + - Ensure compliance + - No violations + - Acceptable content + +3. Submit for review + - Upload final build + - Submit for review + - Monitor review status + +**Deliverable**: +- App Store listing complete +- Beta tested application +- Submitted for App Store review + +**Estimated Time**: 8-10 days + +--- + +### Phase 7: Launch & Post-Launch (Week 13+) + +**Objective**: Launch app and support initial users + +**Tasks**: + +#### Launch Preparation +1. Marketing preparation + - Landing page + - Social media posts + - Press release + - Community announcements + +2. Support infrastructure + - Support email + - FAQ document + - GitHub issues for bug reports + +#### Launch Day +1. Monitor App Store approval + - Respond to any review issues + - Resubmit if needed + +2. Once approved + - Release to App Store + - Announce on social media + - Post on relevant communities + +3. Monitor launch + - Watch for crashes + - Monitor reviews + - Check analytics + +#### Post-Launch Support +1. User support + - Respond to reviews + - Answer support emails + - Fix critical bugs + +2. Collect feedback + - Feature requests + - Bug reports + - User experience issues + +3. Plan updates + - Prioritize fixes + - Plan next features + - Schedule releases + +**Deliverable**: +- Live app on App Store +- Active user support +- Update roadmap + +**Estimated Time**: Ongoing + +--- + +## Development Best Practices + +### Code Quality +- Follow Swift API Design Guidelines +- Use SwiftLint for code consistency +- Write meaningful commit messages +- Conduct code reviews (if team) +- Document complex logic + +### Testing +- Write tests before fixing bugs (TDD) +- Maintain 80%+ test coverage +- Mock external dependencies +- Test edge cases +- Use snapshot testing for UI + +### Version Control +- Feature branch workflow +- Meaningful branch names +- Small, focused commits +- Pull requests for review +- Tag releases (v1.0.0, v1.1.0, etc.) + +### Security +- Never commit secrets +- Use environment variables +- Encrypt sensitive data +- Validate all inputs +- Regular security audits + +--- + +## Risk Mitigation + +### Technical Risks + +| Risk | Probability | Impact | Mitigation | +|------|------------|--------|-----------| +| API breaking changes | Medium | High | Version API, maintain compatibility | +| Performance issues | Medium | Medium | Profiling, optimization, testing | +| iOS updates breaking app | Low | High | Test beta iOS versions, quick updates | +| Third-party dependency issues | Low | Medium | Minimize dependencies, have alternatives | +| Data loss | Low | High | Robust Core Data, backup/sync | + +### Business Risks + +| Risk | Probability | Impact | Mitigation | +|------|------------|--------|-----------| +| App Store rejection | Medium | High | Follow guidelines, prepare alternatives | +| Low user adoption | Medium | High | Marketing, user feedback, iteration | +| Negative reviews | Medium | Medium | Quality assurance, quick bug fixes | +| Backend downtime | Low | High | Offline mode, graceful degradation | +| Competition | High | Medium | Unique features, better UX | + +--- + +## Resource Requirements + +### Development Team +- **iOS Developer** (1-2): Swift, SwiftUI, Core Data, networking +- **Backend Developer** (0.5): API Gateway support, if needed +- **Designer** (0.5): UI/UX mockups, app icon, screenshots +- **QA Tester** (0.5): Testing, bug reporting + +### Tools & Services +- Xcode 15+ (Free) +- Apple Developer Account ($99/year) +- GitHub or GitLab (Free tier) +- TestFlight (included with developer account) +- Analytics service (optional, free tiers available) +- Crash reporting (optional, free tiers available) + +### Estimated Costs +- Apple Developer: $99/year +- Design assets: $0-500 (if outsourced) +- Marketing: $0-1000 (optional) +- **Total first year**: $99-1599 + +--- + +## Success Criteria + +### Technical +- [ ] App launches in <1 second on iPhone 15 +- [ ] API requests complete in <2 seconds on 4G +- [ ] Crash-free rate >99.5% +- [ ] Test coverage >80% +- [ ] No memory leaks +- [ ] App size <50MB + +### User Experience +- [ ] Onboarding completion rate >70% +- [ ] Average session duration >5 minutes +- [ ] Message send success rate >99% +- [ ] App Store rating >4.5 stars +- [ ] Support ticket response time <24 hours + +### Business +- [ ] 1000+ downloads in first month +- [ ] 20%+ DAU/MAU ratio +- [ ] 10%+ conversion to paid (if applicable) +- [ ] 60%+ D1 retention +- [ ] 30%+ D7 retention + +--- + +## Maintenance Plan + +### Regular Updates +- **Patch releases** (X.X.1): Bug fixes, every 2-4 weeks +- **Minor releases** (X.1.0): New features, every 1-2 months +- **Major releases** (2.0.0): Major changes, yearly + +### Ongoing Tasks +- Monitor crash reports +- Review user feedback +- Update dependencies +- iOS version compatibility +- Security patches +- Performance optimization + +--- + +## Future Enhancements + +After MVP launch, consider these features (in priority order): + +1. **Voice Input/Output** (Q4 2025) + - Whisper integration for voice input + - TTS for AI responses + - Voice conversation mode + +2. **Image Generation** (Q4 2025) + - DALL-E integration + - Image editing + - Gallery view + +3. **Widgets** (Q4 2025) + - Quick access widget + - Balance widget + - Recent conversation widget + +4. **Siri Shortcuts** (Q4 2025) + - "Ask Deep Assistant..." + - Custom shortcuts + - App intents + +5. **iPad Optimization** (Q1 2026) + - Split view + - Keyboard shortcuts + - Pointer support + - Stage Manager support + +6. **Apple Watch** (Q1 2026) + - Quick queries + - Balance check + - Notifications + +7. **macOS App** (Q2 2026) + - Mac Catalyst port + - Menu bar app + - Native macOS version + +8. **Advanced Features** (Q2-Q3 2026) + - Code syntax highlighting + - LaTeX rendering + - Export to PDF/Markdown + - Share conversations + - Collaborative chats + +--- + +## Conclusion + +This implementation plan provides a structured approach to building the Deep Assistant iOS/iPadOS application. The phased approach ensures incremental value delivery while maintaining code quality and user experience. + +**Key Takeaways**: +- MVP can be achieved in 12-16 weeks with focused effort +- Architecture is scalable for future features +- Testing and quality are prioritized throughout +- Post-launch support is critical for success + +**Next Immediate Steps**: +1. Get stakeholder approval on this plan +2. Clarify open questions in architecture document +3. Gather design assets +4. Setup development environment +5. Begin Phase 0: Project Setup + +--- + +## Appendix + +### A. Useful Resources + +**Official Apple Documentation**: +- [SwiftUI Documentation](https://developer.apple.com/documentation/swiftui) +- [Core Data Programming Guide](https://developer.apple.com/documentation/coredata) +- [App Store Review Guidelines](https://developer.apple.com/app-store/review/guidelines/) +- [Human Interface Guidelines](https://developer.apple.com/design/human-interface-guidelines/) + +**Third-Party Resources**: +- [Hacking with Swift](https://www.hackingwithswift.com/) +- [Ray Wenderlich Tutorials](https://www.raywenderlich.com/) +- [Swift by Sundell](https://www.swiftbysundell.com/) +- [NSHipster](https://nshipster.com/) + +**Communities**: +- r/iOSProgramming +- Swift Forums +- Stack Overflow +- iOS Dev Slack + +### B. Code Style Guide + +Follow [Swift API Design Guidelines](https://swift.org/documentation/api-design-guidelines/) and these additional rules: + +1. Use SwiftLint with default configuration +2. Maximum line length: 120 characters +3. Use `// MARK:` for organizing code +4. Prefer `let` over `var` when possible +5. Use trailing closures when appropriate +6. Document public APIs with comments +7. Use descriptive variable names +8. Avoid force unwrapping (`!`) +9. Handle all error cases +10. Write self-documenting code + +### C. Git Workflow + +**Branch Naming**: +- `feature/chat-interface` +- `bugfix/message-rendering` +- `release/1.0.0` + +**Commit Messages**: +``` +(): + + + +