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Development Progress - EatThisDie

Last Updated: 2025-09-30 00:55 UTC+2
Status: Planning Complete, Partial Design System Implementation
Next Session: Create Xcode Project on macOS

Current Status Summary

✅ Completed

Documentation (100%)

  • Requirements specification (180 lines)
  • System architecture (HealthKit-centric, 250 lines)
  • Technology stack decisions (288 lines)
  • DOS amber CGA design system (118 lines)
  • Development rules with SOLID principles (400+ lines)
  • Project structure conventions (800+ lines)
  • UI mockups and specifications
  • README with design philosophy

Design System Code (Partial)

  • AmberTheme.swift - Complete color system (239 lines)

    • DOS amber CGA colors (#ffbf00)
    • Semantic color mapping
    • Accessibility contrast validation
    • Hex color initializer
    • SwiftUI preview included

  • DOSTypography.swift - Complete typography system (334 lines)

    • Monospace font definitions
    • Dynamic Type support
    • View modifiers for DOS styling
    • Data display with tabular numbers
    • SwiftUI preview included

Repository

What's Missing (Next Session on macOS)

🔴 Critical - Xcode Project Setup

Cannot proceed on Windows - Requires macOS with Xcode installed

Step 1: Create Xcode Project

1. Open Xcode on macOS
2. File → New → Project
3. iOS → App
4. Configuration:
   - Product Name: EatThisDie
   - Team: [Your Apple Developer Team]
   - Organization Identifier: com.[yourcompany].eatthisidie
   - Bundle Identifier: com.[yourcompany].eatthisidie
   - Interface: SwiftUI
   - Language: Swift
   - Storage: None (we'll add Core Data manually)
   - Include Tests: Yes
   - Create Git repository: No (already exists)
5. Save Location: d:\Coding\eatthisidie\ (or Mac equivalent path)

Step 2: Organize Existing Files into Xcode Project

After creating the Xcode project, integrate existing Swift files:

Move files from:
  src/EatThisDie/DesignSystem/Colors/AmberTheme.swift
  src/EatThisDie/DesignSystem/Typography/DOSTypography.swift

Into Xcode project structure:
  EatThisDie/
  ├── EatThisDieApp.swift (Xcode creates this)
  ├── ContentView.swift (Xcode creates this)
  └── DesignSystem/
      ├── AmberTheme.swift (move here)
      └── DOSTypography.swift (move here)

Important: Use Xcode's "Add Files to Project" to ensure proper project references.

Next Development Tasks

Phase 1: Core Setup (macOS Required)

1.1 Xcode Project Configuration

  • Create Xcode project (see Step 1 above)
  • Configure project settings:
    • Set deployment target: iOS 15.0
    • Enable SwiftUI previews
    • Configure code signing
    • Add HealthKit capability
    • Add Core Data capability

1.2 Integrate Existing Design System

  • Add AmberTheme.swift to project
  • Add DOSTypography.swift to project
  • Test SwiftUI previews render correctly
  • Verify amber color displays properly

1.3 Create Remaining Design System Files

  • Spacing.swift - Layout constants (8px grid)
  • Animations.swift - DOS-style animation curves
  • DOSButton.swift - Button component
  • DOSCard.swift - Card component
  • DOSTextField.swift - Input field component

1.4 App Foundation

  • Update EatThisDieApp.swift with DOS theme
  • Create ContentView.swift with DOS styling
  • Set up navigation structure (TabView)
  • Configure dark mode (DOS amber theme)

Phase 2: Core Infrastructure

2.1 HealthKit Integration

  • Core/HealthKit/HealthKitManager.swift
  • Request HealthKit permissions
  • Read glucose data
  • Write nutrition data
  • Test with Health app

2.2 Core Data Setup

  • Create .xcdatamodeld file
  • Define entities (FoodItem, Meal)
  • Create CoreDataManager
  • Implement repositories

2.3 Basic Features

  • Food logging view (camera placeholder)
  • Glucose dashboard view
  • Settings view

File Structure Reference

Current Structure

eatthisidie/
├── .git/
├── docs/
│   ├── requirements.md ✓
│   ├── architecture.md ✓
│   ├── technology-stack.md ✓
│   ├── design-system.md ✓
│   ├── development-rules.md ✓
│   ├── project-structure.md ✓
│   └── ui-mockups.md ✓
├── src/
│   └── EatThisDie/
│       ├── DesignSystem/
│       │   ├── Colors/
│       │   │   └── AmberTheme.swift ✓
│       │   └── Typography/
│       │       └── DOSTypography.swift ✓
│       ├── App/ (empty)
│       ├── Core/ (empty)
│       ├── Features/ (empty)
│       └── Resources/ (empty)
├── PROGRESS.md ← This file
└── README.md ✓

Target Structure (After Xcode Setup)

eatthisidie/
├── EatThisDie.xcodeproj/ ← CREATE THIS
├── EatThisDie/
│   ├── EatThisDieApp.swift
│   ├── ContentView.swift
│   ├── DesignSystem/
│   │   ├── Tokens/
│   │   │   ├── AmberTheme.swift
│   │   │   ├── DOSTypography.swift
│   │   │   ├── Spacing.swift
│   │   │   └── Animations.swift
│   │   └── Components/
│   │       ├── DOSButton.swift
│   │       ├── DOSCard.swift
│   │       └── DOSTextField.swift
│   ├── Features/
│   │   ├── FoodLogging/
│   │   ├── GlucoseMonitoring/
│   │   └── Settings/
│   ├── Core/
│   │   ├── HealthKit/
│   │   └── Persistence/
│   └── Resources/
│       ├── Assets.xcassets/
│       └── Info.plist
├── EatThisDieTests/
└── EatThisDieUITests/

Quick Start Commands (macOS)

When You Resume on macOS

  1. Navigate to project
cd /path/to/eatthisidie
git pull origin master  # Get latest changes
  1. Open Xcode
open -a Xcode  # If project exists
# OR create new project via Xcode GUI
  1. Verify Swift files compile
# In Xcode: Product → Build (⌘B)
# Check for any compilation errors
  1. Test previews
# In Xcode: Click "Resume" on any SwiftUI preview
# Should see amber-colored UI elements

Key Design Decisions to Remember

Visual Identity

  • Primary Color: #ffbf00 (amber)
  • Background: #0a0a0a (near black)
  • Typography: SF Mono (monospace)
  • Corners: Sharp (0px) or minimal (2px)
  • Grid: 8-pixel base unit

Architecture

  • Pattern: MVVM + Clean Architecture
  • Data Source: HealthKit as source of truth
  • Local Storage: Core Data for caching
  • Language: Swift 5.9+
  • Platform: iOS 15.0+

Core Principles

  1. HealthKit is the source of truth
  2. Privacy by design (no PII)
  3. Offline-first architecture
  4. Type safety (no force unwrapping)
  5. Async/await (no completion handlers)
  6. Protocol-oriented design
  7. DOS amber aesthetic throughout
  8. Accessibility first (VoiceOver, Dynamic Type)

Resources

Documentation

  • All docs in /docs folder
  • Development rules: docs/development-rules.md
  • Design system: docs/design-system.md
  • Project structure: docs/project-structure.md

Apple Resources

GitHub Repository

Questions to Resolve Next Session

  1. Apple Developer Account: Do you have one? (Required for HealthKit testing on device)
  2. Bundle Identifier: What organization identifier to use?
  3. Code Signing: What team/certificate to use?
  4. Testing Device: Physical iPhone or Simulator? (HealthKit limited on simulator)

Estimated Time to MVP

Based on architecture:

  • Xcode Setup: 30 minutes
  • Design System Components: 2-3 hours
  • HealthKit Integration: 2-4 hours
  • Food Logging UI: 4-6 hours
  • Camera Integration: 3-4 hours
  • Core Data Setup: 2-3 hours
  • Testing & Polish: 4-6 hours

Total: ~20-30 hours of focused development

Known Limitations (Windows Environment)

❌ Cannot run Xcode (macOS only)
❌ Cannot test iOS Simulator
❌ Cannot build Swift for iOS
❌ Cannot test HealthKit integration
❌ Cannot preview SwiftUI interfaces

✅ Can write Swift code (syntax only)
✅ Can write documentation
✅ Can plan architecture
✅ Can design UI specifications
✅ Can commit to Git

Success Criteria for Next Session

At the end of your next macOS session, you should have:

  • Working Xcode project that builds
  • DOS amber theme visible in app
  • SwiftUI previews working
  • Basic navigation structure
  • HealthKit permissions flow
  • One screen fully implemented (e.g., Dashboard)

Status: Ready to continue on macOS with Xcode
Platform Requirement: macOS 13+ with Xcode 15+
Next Action: Create Xcode project following Step 1 above