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basil/PULL_REQUEST.md
Paul R Kartchner 3d1e5f0e14
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feat: add database-backed ingredient-instruction mapping system 
Implement comprehensive solution for managing ingredient-to-instruction
mappings in cooking mode. This moves from client-side state management
to persistent database storage, significantly improving reliability and
user experience.

## Key Changes

### Database & Backend
- Add IngredientInstructionMapping table with many-to-many relationship
- Implement automatic ingredient matching algorithm with smart name extraction
- Add API endpoints for mapping management (update, regenerate)
- Create migration script for existing recipes

### Frontend
- Simplify CookingMode to read-only display of stored mappings
- Add ManageIngredientMappings page with drag-and-drop editing
- Remove complex client-side state management (~200 lines)
- Add navigation between cooking mode and management interface

### Testing
- Add 11 comprehensive unit tests for ingredient matcher service
- Update integration tests with proper mocking
- All new features fully tested (24/25 API tests passing)

## Benefits
- Persistent mappings across all clients/devices
- Automatic generation on recipe import/creation
- User control via dedicated management interface
- Cleaner, more maintainable codebase

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-31 22:19:02 +00:00

6.5 KiB
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Pull Request: Database-Backed Ingredient-Instruction Mapping

Summary

This PR implements a comprehensive solution for managing ingredient-to-instruction mappings in cooking mode. The feature moves from client-side state management to a persistent database-backed approach, significantly improving reliability and user experience.

Changes

Database Schema

  • New Table: IngredientInstructionMapping
    • Many-to-many relationship between ingredients and instructions
    • Includes order field for display ordering within instructions
    • Cascade delete for data integrity
    • Migration: 20251031050746_add_ingredient_instruction_mapping

Backend (API)

New Service

  • packages/api/src/services/ingredientMatcher.service.ts
    • Automatic ingredient matching algorithm
    • Extracts core ingredient names (removes quantities/units)
    • Generates name variations (plural/singular)
    • Finds ingredient positions in instruction text
    • Prevents duplicate mappings (same ingredient appearing multiple times)
    • Cross-step tracking (ingredients only appear once across all steps)

API Endpoints

  • Updated GET /api/recipes/:id: Now includes ingredient-instruction mappings in response
  • Updated POST /api/recipes: Automatically generates mappings on recipe creation
  • Updated PUT /api/recipes/:id: Regenerates mappings on recipe update
  • New POST /api/recipes/:id/ingredient-mappings: Manually update mappings
  • New POST /api/recipes/:id/regenerate-mappings: Re-run automatic matching

Frontend (Web)

Simplified Cooking Mode

  • packages/web/src/pages/CookingMode.tsx - Significantly simplified
    • Removed all client-side matching logic (~200 lines removed)
    • Removed localStorage state management
    • Removed drag-and-drop functionality
    • Now purely read-only, displays database-stored mappings
    • Added "⚙️ Manage Ingredients" button for editing

New Management Interface

  • packages/web/src/pages/ManageIngredientMappings.tsx - New dedicated page

    • Similar layout to cooking mode for familiarity
    • Drag-and-drop ingredients to instruction steps
    • Remove ingredients with ✕ button
    • Real-time preview of changes
    • Save to database with "💾 Save Changes" button
    • Auto-regenerate with "🔄 Regenerate Auto Mappings" button
    • Navigate to cooking mode with "👨‍🍳 Preview in Cooking Mode" button
    • Unsaved changes warning banner

  • packages/web/src/styles/ManageIngredientMappings.css - Dedicated styling

Updated Components

  • packages/web/src/App.tsx: Added route for /recipes/:id/manage-mappings
  • packages/web/src/services/api.ts: Added API methods for mapping management
  • packages/web/src/styles/CookingMode.css: Removed unused drag-and-drop styles

Shared Types

  • packages/shared/src/types.ts
    • Added IngredientInstructionMapping interface
    • Updated Ingredient and Instruction to include optional mapping arrays

Scripts

  • packages/api/src/scripts/regenerate-mappings.ts - Utility script to regenerate mappings for all existing recipes

Testing

Test Results

  • ✅ API Tests: 24/25 passing (96%)
    • ✅ New Ingredient Matcher Service: 11/11 tests passing
    • ✅ Recipe Routes: 9/9 tests passing (includes mapping integration)
    • ✅ Storage Service: 4/5 passing (1 pre-existing S3 test failure)
  • ✅ Shared Tests: 16/16 passing (100%)
  • ⚠️ Web Tests: 7/15 passing (8 pre-existing failures in axios mocking setup)

New Test Coverage

Created comprehensive unit tests for ingredientMatcher.service.ts:

  • ✅ Simple ingredient matching
  • ✅ Ingredients with quantities in names
  • ✅ Plural/singular form matching
  • ✅ No duplication across steps
  • ✅ No duplication of same core ingredient
  • ✅ Recipes with sections
  • ✅ Ingredient ordering by text position
  • ✅ Error handling for missing recipes
  • ✅ Save mappings functionality
  • ✅ Auto-map integration

Manual Testing Performed

  • ✅ Created new test recipe with automatic mapping generation
  • ✅ Regenerated mappings for 5 existing recipes (Soft Sourdough, Apple Dutch Baby, Ice Cream, etc.)
  • ✅ Verified mappings persist across page refreshes
  • ✅ Tested drag-and-drop in management interface
  • ✅ Tested remove functionality
  • ✅ Tested save persistence to database
  • ✅ Verified cooking mode displays stored mappings correctly

Migration Guide

For Existing Recipes

Run the regeneration script to generate mappings for all existing recipes:

cd packages/api
npx tsx src/scripts/regenerate-mappings.ts

This was already executed and successfully generated mappings for all 5 existing recipes.

Database Migration

The migration runs automatically when deploying the API container. No manual intervention needed.

Benefits

  1. Reliability: Mappings are persisted in database, not client-side localStorage
  2. Consistency: Same mappings across all clients/devices
  3. Simplicity: Cooking mode is now read-only with no complex state management
  4. User Control: Dedicated management interface for editing mappings
  5. Automatic: Mappings are generated automatically on recipe import/creation
  6. Flexible: Users can manually adjust mappings if automatic matching is incorrect

Breaking Changes

None. This is a new feature with backward compatibility. Existing recipes work without mappings, and the system automatically generates them.

Future Enhancements

  • Add UI to manage mappings during recipe import (for recipes with ambiguous matches)
  • Add reordering of ingredients within instructions (drag-and-drop reorder)
  • Add bulk mapping tools (e.g., "map all ingredients to step 1")
  • Add mapping analytics/suggestions based on common patterns

Screenshots

Cooking Mode (Read-Only)

  • Clean, distraction-free interface
  • Ingredients listed inline with each step
  • No edit controls visible

Manage Ingredient Mappings

  • Drag ingredients from top section to instruction steps
  • Remove with ✕ button
  • Save changes button persists to database
  • Regenerate button re-runs automatic matching

Related Issues

Fixes issues with ingredient mapping:

  • Ingredients duplicating when dragging
  • Remove button not working
  • Changes not persisting across clients
  • Complex client-side state management

Review Checklist

  • Database migration created and tested
  • API tests updated and passing
  • Frontend tests updated (some pre-existing failures remain)
  • Manual testing completed
  • Documentation updated
  • No breaking changes
  • Backward compatible
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