Skip to content

03_Implementation_Guide.md

Latest commit

 

History

History
79 lines (64 loc) · 2.9 KB

03_Implementation_Guide.md

File metadata and controls

79 lines (64 loc) · 2.9 KB

Food Search Implementation Guide

File Structure

Core Services

/Services/
├── AIFoodAnalysis.swift          # AI provider implementations and analysis logic
├── BarcodeScannerService.swift   # Barcode detection and OpenFoodFacts integration
├── VoiceSearchService.swift      # Speech recognition and voice processing
├── OpenFoodFactsService.swift    # OpenFoodFacts API integration
└── USDAFoodDataService.swift     # USDA FoodData Central integration

User Interface

/Views/
├── AICameraView.swift            # AI image analysis interface with telemetry
├── BarcodeScannerView.swift      # Barcode scanning interface
├── VoiceSearchView.swift         # Voice input interface
├── FoodSearchBar.swift           # Unified search interface component
└── CarbEntryView.swift           # Enhanced with food search integration

View Models

/View Models/
└── CarbEntryViewModel.swift      # Enhanced with AI analysis and food search

Key Implementation Details

1. AI Analysis Integration

  • Entry Point: AICameraView auto-launches camera and processes results
  • Processing: Multi-stage analysis with real-time telemetry feedback
  • Results: Structured AIFoodAnalysisResult with detailed nutrition data
  • Integration: Results converted to OpenFoodFactsProduct format for compatibility

2. Search Provider Management

  • Enum-based: SearchProvider enum defines available services
  • Type-specific: Different providers for different search types
  • Fallback Logic: Multiple providers with automatic failover
  • Configuration: User-configurable API keys and provider preferences

3. Data Flow

User Input → Search Service → Data Processing → Result Conversion → CarbEntry Integration

4. Error Handling

  • Network Failures: Automatic retry with exponential backoff
  • API Errors: Provider-specific error messages and fallback options
  • Rate Limits: Intelligent handling with user guidance
  • Credit Exhaustion: Clear messaging with provider switching options

Configuration Requirements

API Keys (Optional)

  • OpenAI: For GPT-4o vision analysis
  • Google: For Gemini Pro vision analysis
  • Anthropic: For Claude vision analysis

Permissions

  • Camera: Required for barcode scanning and AI image analysis
  • Microphone: Required for voice search functionality
  • Network: Required for all external API communications

Integration Points

CarbEntryView Enhancement

  • Added AI camera button in search bar
  • Enhanced with AI analysis result display
  • Integrated telemetry and progress feedback
  • Maintains existing carb entry workflow

Data Compatibility

  • All search results convert to OpenFoodFactsProduct format
  • Maintains compatibility with existing Loop nutrition tracking
  • Preserves serving size and nutrition calculation logic