# Recipes API Restructure Summary

## Overview

The recipes service API implementation has been completely restructured to handle tenant-dependent routing and properly mirror the backend API endpoints. This ensures consistency with the backend architecture and enables proper multi-tenant functionality.

## Architecture Changes

### 1. **Client Layer** (`src/api/client/`)
- ✅ **Already properly implemented**: The existing `apiClient.ts` handles authentication, tenant headers, and error management
- ✅ **Supports tenant-dependent routing**: Client properly forwards tenant ID in headers
- ✅ **React Query integration**: Returns data directly for React Query consumption

### 2. **Services Layer** (`src/api/services/recipes.ts`)

#### **Before (Issues)**:
- Missing tenant parameter in all methods
- API calls didn't match backend tenant-dependent routing
- Inconsistent URL patterns

#### **After (Fixed)**:
```typescript
// All methods now require tenantId parameter
async createRecipe(tenantId: string, recipeData: RecipeCreate): Promise<RecipeResponse>
async getRecipe(tenantId: string, recipeId: string): Promise<RecipeResponse>
async searchRecipes(tenantId: string, params: RecipeSearchParams = {}): Promise<RecipeResponse[]>

// URLs properly formatted for tenant-dependent routing
private getBaseUrl(tenantId: string): string {
  return `/tenants/${tenantId}/recipes`;
}
```

#### **API Endpoints Mirrored**:
- ✅ `POST /tenants/{tenant_id}/recipes` - Create recipe
- ✅ `GET /tenants/{tenant_id}/recipes/{recipe_id}` - Get recipe with ingredients
- ✅ `PUT /tenants/{tenant_id}/recipes/{recipe_id}` - Update recipe
- ✅ `DELETE /tenants/{tenant_id}/recipes/{recipe_id}` - Delete recipe
- ✅ `GET /tenants/{tenant_id}/recipes` - Search recipes with filters
- ✅ `POST /tenants/{tenant_id}/recipes/{recipe_id}/duplicate` - Duplicate recipe
- ✅ `POST /tenants/{tenant_id}/recipes/{recipe_id}/activate` - Activate recipe
- ✅ `GET /tenants/{tenant_id}/recipes/{recipe_id}/feasibility` - Check feasibility
- ✅ `GET /tenants/{tenant_id}/recipes/statistics/dashboard` - Get statistics
- ✅ `GET /tenants/{tenant_id}/recipes/categories/list` - Get categories

### 3. **Types Layer** (`src/api/types/recipes.ts`)

#### **Backend Schema Mirroring**:
- ✅ **Enums**: `RecipeStatus`, `MeasurementUnit`, `ProductionStatus`, `ProductionPriority`
- ✅ **Interfaces**: Exactly match backend Pydantic schemas
- ✅ **Request/Response types**: `RecipeCreate`, `RecipeUpdate`, `RecipeResponse`, etc.
- ✅ **Search parameters**: `RecipeSearchParams` with all backend filters
- ✅ **Additional types**: `RecipeFeasibilityResponse`, `RecipeStatisticsResponse`, etc.

### 4. **Hooks Layer** (`src/api/hooks/recipes.ts`)

#### **Before (Issues)**:
- Missing tenant parameters in query keys
- Hooks didn't accept tenant ID
- Cache invalidation not tenant-scoped
- Production batch hooks removed (moved to production service)

#### **After (Fixed)**:
```typescript
// Tenant-scoped query keys
export const recipesKeys = {
  all: ['recipes'] as const,
  tenant: (tenantId: string) => [...recipesKeys.all, 'tenant', tenantId] as const,
  lists: (tenantId: string) => [...recipesKeys.tenant(tenantId), 'list'] as const,
  detail: (tenantId: string, id: string) => [...recipesKeys.details(tenantId), id] as const,
  // ... other tenant-scoped keys
};

// All hooks require tenantId parameter
export const useRecipes = (
  tenantId: string,
  filters: RecipeSearchParams = {},
  options?: UseQueryOptions<RecipeResponse[], ApiError>
) => {
  return useQuery<RecipeResponse[], ApiError>({
    queryKey: recipesKeys.list(tenantId, filters),
    queryFn: () => recipesService.searchRecipes(tenantId, filters),
    enabled: !!tenantId,
    // ...
  });
};
```

#### **Available Hooks**:
- ✅ **Queries**: `useRecipes`, `useRecipe`, `useRecipeStatistics`, `useRecipeCategories`, `useRecipeFeasibility`
- ✅ **Mutations**: `useCreateRecipe`, `useUpdateRecipe`, `useDeleteRecipe`, `useDuplicateRecipe`, `useActivateRecipe`
- ✅ **Infinite Queries**: `useInfiniteRecipes` for pagination

### 5. **Internationalization** (`src/locales/`)

#### **Added Complete i18n Support**:
- ✅ **Spanish (`es/recipes.json`)**: Already existed, comprehensive translations
- ✅ **English (`en/recipes.json`)**: Created new complete translation file
- ✅ **Categories covered**:
  - Navigation, actions, fields, ingredients
  - Status values, difficulty levels, units
  - Categories, dietary tags, allergens
  - Production, feasibility, statistics
  - Filters, costs, messages, placeholders, tooltips

## Integration with Existing Stores

### **Auth Store Integration**:
- ✅ API client automatically includes authentication headers
- ✅ Token refresh handled transparently
- ✅ User context forwarded to backend

### **Tenant Store Integration**:
- ✅ All hooks require `tenantId` parameter from tenant store
- ✅ Tenant-scoped query cache isolation
- ✅ Automatic tenant context in API calls

## Usage Examples

### **Basic Recipe List**:
```typescript
import { useRecipes } from '@/api';
import { useCurrentTenant } from '@/stores/tenant.store';

const RecipesList = () => {
  const currentTenant = useCurrentTenant();
  const { data: recipes, isLoading } = useRecipes(currentTenant?.id || '', {
    status: 'active',
    limit: 20
  });

  return (
    <div>
      {recipes?.map(recipe => (
        <div key={recipe.id}>{recipe.name}</div>
      ))}
    </div>
  );
};
```

### **Recipe Creation**:
```typescript
import { useCreateRecipe, MeasurementUnit } from '@/api';

const CreateRecipe = () => {
  const currentTenant = useCurrentTenant();
  const createRecipe = useCreateRecipe(currentTenant?.id || '');

  const handleSubmit = () => {
    createRecipe.mutate({
      name: "Sourdough Bread",
      finished_product_id: "uuid-here",
      yield_quantity: 2,
      yield_unit: MeasurementUnit.UNITS,
      difficulty_level: 3,
      ingredients: [
        {
          ingredient_id: "flour-uuid",
          quantity: 500,
          unit: MeasurementUnit.GRAMS,
          is_optional: false,
          ingredient_order: 1
        }
      ]
    });
  };
};
```

## Benefits

### **1. Consistency with Backend**:
- ✅ All API calls exactly match backend endpoints
- ✅ Request/response types mirror Pydantic schemas
- ✅ Proper tenant isolation at API level

### **2. Type Safety**:
- ✅ Full TypeScript coverage
- ✅ Compile-time validation of API calls
- ✅ IDE autocomplete and error detection

### **3. Caching & Performance**:
- ✅ Tenant-scoped React Query cache
- ✅ Efficient cache invalidation
- ✅ Background refetching and stale-while-revalidate

### **4. Developer Experience**:
- ✅ Clean, consistent API surface
- ✅ Comprehensive i18n support
- ✅ Example components demonstrating usage
- ✅ Self-documenting code with JSDoc

### **5. Multi-Tenant Architecture**:
- ✅ Complete tenant isolation
- ✅ Proper tenant context propagation
- ✅ Cache separation between tenants

## Migration Guide

### **For Existing Components**:

1. **Add tenant parameter**:
   ```typescript
   // Before
   const { data } = useRecipes();

   // After
   const currentTenant = useCurrentTenant();
   const { data } = useRecipes(currentTenant?.id || '');
   ```

2. **Update mutation calls**:
   ```typescript
   // Before
   const createRecipe = useCreateRecipe();

   // After
   const createRecipe = useCreateRecipe(currentTenant?.id || '');
   ```

3. **Use proper types**:
   ```typescript
   import { RecipeResponse, RecipeCreate, MeasurementUnit } from '@/api';
   ```

## Verification

### **Backend Compatibility**:
- ✅ All endpoints tested with actual backend
- ✅ Request/response format validation
- ✅ Tenant-dependent routing confirmed

### **Gateway Routing**:
- ✅ Gateway properly proxies `/tenants/{tenant_id}/recipes/*` to recipes service
- ✅ Tenant ID forwarded correctly in headers
- ✅ Authentication and authorization working

### **Data Flow**:
- ✅ Frontend → Gateway → Recipes Service → Database
- ✅ Proper tenant isolation at all levels
- ✅ Error handling and edge cases covered

This restructure provides a solid foundation for the recipes feature that properly integrates with the multi-tenant architecture and ensures consistency with the backend API design.