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Tasks List Document

AI Powered Meal Prep Application - 12 Week Development Plan

Project Overview

  • Duration: 12 weeks
  • Team Size: 2 developers (Logan Barker, Zach Mattes)
  • Methodology: Agile with iterative development
  • Goal: Combine existing codebases and implement AI meal planning features

Phase 1: Foundation & Setup (Weeks 1-2)

Parallel Track A: Backend Infrastructure

ISSUE-001: Express.js Backend Setup

  • Initialize Express server with TypeScript
  • Configure middleware (CORS, body-parser, error handling)
  • Set up project structure and environment variables
  • Can work in parallel with: ISSUE-002, ISSUE-003, ISSUE-004

ISSUE-005: MongoDB Database Setup

  • Set up MongoDB Atlas cluster
  • Configure Mongoose ODM
  • Create base schemas (User, Recipe, Inventory, MealPlan, Leftovers)
  • Set up database indexes
  • Dependencies: ISSUE-001
  • Can work in parallel with: ISSUE-006, ISSUE-007

ISSUE-008: Clerk Authentication Backend

  • Integrate Clerk SDK with Express
  • Implement JWT validation middleware
  • Create protected route middleware
  • Set up user session management
  • Dependencies: ISSUE-001, ISSUE-005
  • Can work in parallel with: ISSUE-009

Parallel Track B: Mobile App Foundation

ISSUE-002: React Native Project Setup

  • Initialize Expo project with TypeScript
  • Configure ESLint and Prettier
  • Set up project folder structure
  • Install core dependencies (React Navigation, NativeBase)
  • Can work in parallel with: ISSUE-001, ISSUE-003, ISSUE-004

ISSUE-003: UI Component Library

  • Set up NativeBase or React Native Elements
  • Create reusable components (Button, Input, Card, Modal)
  • Implement design system and theming
  • Create layout components (Header, TabBar)
  • Dependencies: ISSUE-002
  • Can work in parallel with: ISSUE-001, ISSUE-004

ISSUE-004: Navigation Framework

  • Set up React Navigation
  • Implement tab navigator (Home, Recipes, Inventory, Meal Plans, Profile)
  • Create stack navigators for each section
  • Implement authentication guards
  • Dependencies: ISSUE-002
  • Can work in parallel with: ISSUE-001, ISSUE-003

ISSUE-006: API Integration Layer

  • Set up React Query for state management
  • Create API client with Axios
  • Implement request/response interceptors
  • Add offline support with AsyncStorage
  • Dependencies: ISSUE-002, ISSUE-001
  • Can work in parallel with: ISSUE-005, ISSUE-007

ISSUE-009: Clerk Authentication Mobile

  • Integrate Clerk SDK with React Native
  • Create login/signup screens
  • Implement secure token storage (Expo SecureStore)
  • Create authentication context and hooks
  • Dependencies: ISSUE-002, ISSUE-008
  • Can work in parallel with: ISSUE-008

Parallel Track C: External Services

ISSUE-007: TheMealDB API Integration

  • Create TheMealDB API client
  • Implement recipe fetching utilities
  • Add error handling and retry logic
  • Create data transformation functions
  • Dependencies: ISSUE-001
  • Can work in parallel with: ISSUE-005, ISSUE-006

Phase 2: User Management & Profiles (Week 3)

ISSUE-010: User Profile Schema & API

  • Implement User model with preferences and schedule fields
  • Create profile CRUD endpoints (GET, PUT /api/users/profile)
  • Create preferences endpoint (PUT /api/users/preferences)
  • Create schedule endpoint (PUT /api/users/schedule)
  • Add input validation with Zod
  • Dependencies: ISSUE-005, ISSUE-008
  • Can work in parallel with: ISSUE-011

ISSUE-011: User Profile Mobile Screens

  • Create profile view screen
  • Create preferences input form (dietary restrictions, cuisines, skill level, budget)
  • Create schedule input interface with time pickers
  • Implement form validation
  • Dependencies: ISSUE-009, ISSUE-006
  • Can work in parallel with: ISSUE-010

ISSUE-012: Onboarding Flow

  • Create welcome screens
  • Implement tutorial/walkthrough
  • Create initial preferences setup wizard
  • Add skip functionality
  • Dependencies: ISSUE-011
  • Can work in parallel with: Next phase issues

Phase 3: Recipe Management (Weeks 4-5)

Parallel Track A: Recipe Backend

ISSUE-013: Recipe Schema & API

  • Implement Recipe model with all fields from LowLevelDesign
  • Create recipe CRUD endpoints (GET, POST, PUT /api/recipes)
  • Implement search and filtering API (GET /api/recipes?search=&cuisine=&category=)
  • Add pagination support
  • Create rating endpoint (PUT /api/recipes/:id/rating)
  • Dependencies: ISSUE-005
  • Can work in parallel with: ISSUE-014, ISSUE-015

ISSUE-014: Recipe Import System

  • Create TheMealDB import service
  • Implement data transformation (TheMealDB → Recipe schema)
  • Add batch processing for multiple recipes
  • Implement duplicate detection
  • Create seed script for initial recipe population
  • Dependencies: ISSUE-007, ISSUE-013
  • Can work in parallel with: ISSUE-013, ISSUE-015

ISSUE-016: Recipe Suggestion API

  • Create ingredient matching algorithm
  • Implement suggestion endpoint (GET /api/recipes/suggestions?ingredients=)
  • Prioritize recipes using available ingredients
  • Add filtering by user preferences
  • Dependencies: ISSUE-013
  • Can work in parallel with: ISSUE-017, ISSUE-018

Parallel Track B: Recipe Mobile

ISSUE-015: Recipe List & Search Screen

  • Create recipe list screen with FlatList
  • Implement search functionality
  • Add filtering UI (cuisine, category, dietary restrictions)
  • Implement pagination and pull-to-refresh
  • Dependencies: ISSUE-006, ISSUE-013
  • Can work in parallel with: ISSUE-013, ISSUE-014

ISSUE-017: Recipe Detail Screen

  • Create recipe detail view
  • Display ingredients, instructions, nutrition info
  • Implement rating interface (1-5 stars)
  • Add sharing functionality
  • Show prep/cook time and difficulty
  • Dependencies: ISSUE-015
  • Can work in parallel with: ISSUE-016, ISSUE-018

ISSUE-018: Custom Recipe Creation

  • Create recipe creation form
  • Implement ingredient input with dynamic fields
  • Add image picker for recipe photos
  • Create instruction step builder
  • Add nutrition info input (optional)
  • Dependencies: ISSUE-006, ISSUE-013
  • Can work in parallel with: ISSUE-016, ISSUE-017

ISSUE-019: Recipe Favorites & Collections

  • Add favorites toggle to recipe cards
  • Create favorites view screen
  • Implement collections/categories for organizing recipes
  • Dependencies: ISSUE-017
  • Can work in parallel with: Next phase issues

Phase 4: Inventory Management (Week 6)

ISSUE-020: Inventory Schema & API

  • Implement Inventory model
  • Create inventory endpoints (GET, PUT /api/inventory)
  • Create add ingredient endpoint (POST /api/inventory/ingredient)
  • Create remove ingredient endpoint (DELETE /api/inventory/ingredient/:name)
  • Add expiration date tracking
  • Dependencies: ISSUE-005
  • Can work in parallel with: ISSUE-021

ISSUE-021: Inventory Mobile Interface

  • Create inventory list screen
  • Implement add ingredient form (name, quantity, unit, expiration date)
  • Create edit/delete functionality
  • Add expiration alerts and warnings
  • Implement ingredient categorization (produce, dairy, meat, etc.)
  • Dependencies: ISSUE-006, ISSUE-020
  • Can work in parallel with: ISSUE-020

ISSUE-022: Inventory-Recipe Integration

  • Add "available ingredients" indicator on recipe cards
  • Highlight missing ingredients in recipe detail view
  • Create "recipes you can make" filter
  • Dependencies: ISSUE-021, ISSUE-017, ISSUE-016
  • Can work in parallel with: Next phase issues

Phase 5: AI Infrastructure & Meal Planning (Weeks 7-9)

Parallel Track A: AI Backend

ISSUE-023: AWS Bedrock Integration

  • Set up AWS Bedrock SDK
  • Configure Claude-3 model access
  • Implement prompt engineering utilities
  • Add token usage tracking for cost management
  • Create fallback error handling
  • Dependencies: ISSUE-001
  • Can work in parallel with: ISSUE-024, ISSUE-025

ISSUE-024: Vector Database Setup

  • Set up MongoDB Vector Search or Pinecone
  • Create recipe embedding generation
  • Implement similarity search functionality
  • Index existing recipes
  • Dependencies: ISSUE-013, ISSUE-023
  • Can work in parallel with: ISSUE-023, ISSUE-025

ISSUE-025: RAG Service Implementation

  • Create RAG service class
  • Implement recipe retrieval based on user context
  • Build meal plan generation prompt
  • Integrate user preferences, inventory, and schedule
  • Add reasoning/explanation generation
  • Dependencies: ISSUE-023, ISSUE-024
  • Can work in parallel with: ISSUE-023, ISSUE-024

ISSUE-026: Meal Plan Schema & API

  • Implement MealPlan model
  • Create meal plan generation endpoint (POST /api/meal-plans/generate)
  • Create get meal plan endpoint (GET /api/meal-plans?weekStartDate=)
  • Create update meal plan endpoint (PUT /api/meal-plans/:id)
  • Create meal status update endpoint (PUT /api/meal-plans/:id/meal-status)
  • Create feedback endpoint (POST /api/meal-plans/:id/feedback)
  • Dependencies: ISSUE-005, ISSUE-025
  • Can work in parallel with: ISSUE-027

ISSUE-027: AI Meal Plan Generation Service

  • Integrate RAG service with meal plan API
  • Implement meal plan generation logic
  • Consider user preferences, inventory, schedule constraints
  • Generate shopping list from meal plan
  • Calculate estimated costs
  • Provide AI reasoning for recommendations
  • Dependencies: ISSUE-025, ISSUE-026
  • Can work in parallel with: ISSUE-028

Parallel Track B: Schedule Management

ISSUE-028: Schedule Management Backend

  • Create schedule schema within User model
  • Implement time slot management
  • Add conflict detection logic
  • Create availability checking utilities
  • Dependencies: ISSUE-010
  • Can work in parallel with: ISSUE-026, ISSUE-027, ISSUE-029

ISSUE-029: Schedule Management Mobile

  • Create schedule input screen
  • Implement time pickers for available cooking slots
  • Add day-by-day schedule builder
  • Show schedule visualization (calendar/timeline view)
  • Add conflict alerts
  • Dependencies: ISSUE-011, ISSUE-028
  • Can work in parallel with: ISSUE-028, ISSUE-030

Parallel Track C: Meal Plan Mobile

ISSUE-030: Meal Plan Mobile Interface

  • Create weekly meal plan view
  • Implement day-by-day view
  • Create meal cards with recipe info
  • Add meal status tracking (planned, prepped, cooked, eaten, skipped)
  • Show AI reasoning/explanation
  • Dependencies: ISSUE-006, ISSUE-026
  • Can work in parallel with: ISSUE-029, ISSUE-031

ISSUE-031: Meal Plan Generation Flow

  • Create meal plan generation screen
  • Add loading states and progress indicators
  • Implement meal plan preview before saving
  • Add regeneration/alternative suggestion options
  • Allow manual meal swapping
  • Dependencies: ISSUE-030
  • Can work in parallel with: ISSUE-032

ISSUE-032: Shopping List Mobile Interface

  • Create shopping list screen from meal plan
  • Group ingredients by category
  • Add check-off functionality
  • Show estimated costs
  • Implement list sharing functionality
  • Dependencies: ISSUE-030
  • Can work in parallel with: ISSUE-031

Phase 6: Cost Tracking & External APIs (Weeks 10-11)

Parallel Track A: Pricing Integration

ISSUE-033: Walmart API Integration

  • Set up Walmart API client
  • Implement product search by ingredient
  • Fetch pricing data
  • Create cost calculation utilities
  • Add budget tracking logic
  • Dependencies: ISSUE-001
  • Can work in parallel with: ISSUE-034, ISSUE-035

ISSUE-034: Cost Tracking Backend

  • Add cost fields to shopping list items
  • Create cost calculation endpoints
  • Implement budget tracking API
  • Add spending analytics
  • Dependencies: ISSUE-026, ISSUE-033
  • Can work in parallel with: ISSUE-033, ISSUE-035

ISSUE-035: Cost Tracking Mobile UI

  • Create budget overview screen
  • Display cost breakdown by meal/ingredient
  • Show weekly/monthly spending trends
  • Add budget alerts
  • Create spending reports
  • Dependencies: ISSUE-032, ISSUE-034
  • Can work in parallel with: ISSUE-033, ISSUE-034

Parallel Track B: Maps & Route Planning

ISSUE-036: Google Maps API Integration

  • Set up Google Maps SDK
  • Implement store location search
  • Create route optimization logic
  • Calculate distances and travel times
  • Dependencies: ISSUE-001
  • Can work in parallel with: ISSUE-033, ISSUE-037

ISSUE-037: Shopping Trip Planning

  • Create store comparison screen
  • Show stores on map with prices
  • Implement route planning interface
  • Add multi-store trip optimization
  • Dependencies: ISSUE-035, ISSUE-036
  • Can work in parallel with: ISSUE-036, ISSUE-038

Parallel Track C: Notifications & Leftovers

ISSUE-038: Push Notifications System

  • Set up Expo Notifications
  • Implement notification scheduling
  • Create meal prep reminders based on schedule
  • Add expiration date alerts
  • Create meal time reminders
  • Dependencies: ISSUE-002
  • Can work in parallel with: ISSUE-036, ISSUE-037, ISSUE-039

ISSUE-039: Leftovers Management

  • Implement Leftovers schema
  • Create leftovers tracking API
  • Add leftover logging in meal plan
  • Create leftovers screen in mobile app
  • Integrate leftovers into meal plan generation
  • Suggest recipes using leftovers
  • Dependencies: ISSUE-026, ISSUE-030
  • Can work in parallel with: ISSUE-038, ISSUE-040

ISSUE-040: Consumption Analytics

  • Track meal completion rates
  • Analyze consumption patterns
  • Calculate grocery consumption speed
  • Provide insights and recommendations
  • Create analytics dashboard
  • Dependencies: ISSUE-026, ISSUE-039
  • Can work in parallel with: ISSUE-039

Phase 7: Polish & Enhancement (Week 11)

ISSUE-041: Image Upload Service

  • Set up cloud storage (AWS S3 or Cloudinary)
  • Implement image upload API
  • Add image optimization and resizing
  • Create CDN integration
  • Dependencies: ISSUE-001
  • Can work in parallel with: ISSUE-042, ISSUE-043

ISSUE-042: Camera Integration

  • Implement camera access for recipe photos
  • Add barcode scanning for ingredients
  • Create photo gallery for recipes
  • Dependencies: ISSUE-002, ISSUE-041
  • Can work in parallel with: ISSUE-041, ISSUE-043

ISSUE-043: Offline Support

  • Implement AsyncStorage for offline data
  • Add offline sync queue
  • Create conflict resolution logic
  • Cache recipes and meal plans locally
  • Dependencies: ISSUE-006
  • Can work in parallel with: ISSUE-041, ISSUE-042

ISSUE-044: Performance Optimization

  • Optimize bundle size with Metro
  • Implement lazy loading for screens
  • Add image caching and optimization
  • Optimize database queries with indexes
  • Implement React Query caching strategies
  • Dependencies: All previous issues
  • Can work in parallel with: ISSUE-045

ISSUE-045: UI/UX Polish

  • Add animations and transitions
  • Implement loading states and skeletons
  • Create empty states
  • Add haptic feedback
  • Improve error messages
  • Dependencies: All mobile UI issues
  • Can work in parallel with: ISSUE-044

Phase 8: Testing & Deployment (Week 12)

ISSUE-046: Testing Suite

  • Write unit tests for backend services
  • Create integration tests for API endpoints
  • Add component tests for mobile UI
  • Test AI meal plan generation
  • Perform cross-platform testing (iOS/Android)
  • Dependencies: All previous issues
  • Can work in parallel with: ISSUE-047

ISSUE-047: Security & Performance Audit

  • Review authentication and authorization
  • Test API security and rate limiting
  • Validate input sanitization
  • Check for data encryption
  • Perform load testing
  • Dependencies: All previous issues
  • Can work in parallel with: ISSUE-046

ISSUE-048: Documentation

  • Write API documentation (Swagger/OpenAPI)
  • Create user guide and tutorials
  • Document architecture and deployment
  • Add inline code documentation
  • Create README files
  • Dependencies: All previous issues
  • Can work in parallel with: ISSUE-046, ISSUE-047

ISSUE-049: Production Deployment

  • Deploy backend to Railway/Heroku
  • Configure production environment variables
  • Set up MongoDB Atlas production cluster
  • Configure monitoring and logging
  • Dependencies: ISSUE-046, ISSUE-047
  • Can work in parallel with: ISSUE-050

ISSUE-050: Mobile App Build & Release

  • Configure EAS Build
  • Create iOS and Android production builds
  • Set up app signing
  • Submit to TestFlight and Google Play Console
  • Prepare app store listings
  • Dependencies: ISSUE-046, ISSUE-047
  • Can work in parallel with: ISSUE-049

Parallel Work Summary

Maximum Parallelization Opportunities

Phase 1 (Weeks 1-2): Up to 6 issues can be worked on simultaneously

  • Backend setup (ISSUE-001, ISSUE-005, ISSUE-008)
  • Mobile setup (ISSUE-002, ISSUE-003, ISSUE-004)
  • External APIs (ISSUE-007)

Phase 2 (Week 3): 2 issues in parallel

  • Backend profile API (ISSUE-010)
  • Mobile profile UI (ISSUE-011)

Phase 3 (Weeks 4-5): Up to 4 issues in parallel

  • Backend recipe system (ISSUE-013, ISSUE-014, ISSUE-016)
  • Mobile recipe UI (ISSUE-015, ISSUE-017, ISSUE-018)

Phase 4 (Week 6): 2 issues in parallel

  • Backend inventory (ISSUE-020)
  • Mobile inventory (ISSUE-021)

Phase 5 (Weeks 7-9): Up to 5 issues in parallel

  • AI infrastructure (ISSUE-023, ISSUE-024, ISSUE-025)
  • Meal plan backend (ISSUE-026, ISSUE-027, ISSUE-028)
  • Meal plan mobile (ISSUE-029, ISSUE-030, ISSUE-031, ISSUE-032)

Phase 6 (Weeks 10-11): Up to 6 issues in parallel

  • Pricing (ISSUE-033, ISSUE-034, ISSUE-035)
  • Maps (ISSUE-036, ISSUE-037)
  • Notifications & leftovers (ISSUE-038, ISSUE-039, ISSUE-040)

Phase 7 (Week 11): Up to 5 issues in parallel

  • All polish issues (ISSUE-041 through ISSUE-045)

Phase 8 (Week 12): Up to 4 issues in parallel

  • Testing, documentation, and deployment (ISSUE-046 through ISSUE-050)

Critical Path

The following issues form the critical path and must be completed in order:

  1. ISSUE-001 (Backend Setup) → ISSUE-005 (MongoDB) → ISSUE-008 (Auth Backend)
  2. ISSUE-002 (Mobile Setup) → ISSUE-009 (Auth Mobile)
  3. ISSUE-013 (Recipe API) → ISSUE-026 (Meal Plan API) → ISSUE-027 (AI Generation)
  4. ISSUE-023 (AWS Bedrock) → ISSUE-024 (Vector DB) → ISSUE-025 (RAG Service) → ISSUE-027
  5. ISSUE-030 (Meal Plan UI) → ISSUE-031 (Generation Flow) → ISSUE-032 (Shopping List)

All other issues can be scheduled around these critical dependencies.