Automated Action 447799c9a0 Implement complete FastAPI inventory management system for small businesses
Features implemented:
- Product management with CRUD operations
- Category and supplier management
- Stock movement tracking with automatic updates
- Inventory reports and analytics
- SQLite database with Alembic migrations
- Health monitoring endpoints
- CORS configuration for API access
- Comprehensive API documentation
- Code quality with Ruff linting and formatting

The system provides a complete backend solution for small business inventory management with proper database relationships, stock tracking, and reporting capabilities.
2025-07-23 09:07:46 +00:00

154 lines
4.7 KiB
Python

from typing import List, Optional
from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy.orm import Session
from app.db.session import get_db
from app.models.product import Product
from app.models.stock_movement import StockMovement, MovementType
from app.schemas.product import Product as ProductSchema, ProductCreate, ProductUpdate
router = APIRouter(prefix="/products", tags=["products"])
@router.get("/", response_model=List[ProductSchema])
def get_products(
skip: int = Query(0, ge=0),
limit: int = Query(100, ge=1, le=1000),
category_id: Optional[int] = None,
supplier_id: Optional[int] = None,
low_stock: bool = False,
db: Session = Depends(get_db),
):
query = db.query(Product)
if category_id:
query = query.filter(Product.category_id == category_id)
if supplier_id:
query = query.filter(Product.supplier_id == supplier_id)
if low_stock:
query = query.filter(Product.quantity_in_stock <= Product.minimum_stock_level)
return query.offset(skip).limit(limit).all()
@router.get("/{product_id}", response_model=ProductSchema)
def get_product(product_id: int, db: Session = Depends(get_db)):
product = db.query(Product).filter(Product.id == product_id).first()
if not product:
raise HTTPException(status_code=404, detail="Product not found")
return product
@router.post("/", response_model=ProductSchema)
def create_product(product: ProductCreate, db: Session = Depends(get_db)):
existing_product = db.query(Product).filter(Product.sku == product.sku).first()
if existing_product:
raise HTTPException(status_code=400, detail="SKU already exists")
db_product = Product(**product.dict())
db.add(db_product)
db.commit()
db.refresh(db_product)
return db_product
@router.put("/{product_id}", response_model=ProductSchema)
def update_product(
product_id: int, product: ProductUpdate, db: Session = Depends(get_db)
):
db_product = db.query(Product).filter(Product.id == product_id).first()
if not db_product:
raise HTTPException(status_code=404, detail="Product not found")
update_data = product.dict(exclude_unset=True)
if "sku" in update_data:
existing_product = (
db.query(Product)
.filter(Product.sku == update_data["sku"], Product.id != product_id)
.first()
)
if existing_product:
raise HTTPException(status_code=400, detail="SKU already exists")
for field, value in update_data.items():
setattr(db_product, field, value)
db.commit()
db.refresh(db_product)
return db_product
@router.delete("/{product_id}")
def delete_product(product_id: int, db: Session = Depends(get_db)):
db_product = db.query(Product).filter(Product.id == product_id).first()
if not db_product:
raise HTTPException(status_code=404, detail="Product not found")
db.delete(db_product)
db.commit()
return {"message": "Product deleted successfully"}
@router.post("/{product_id}/stock/add")
def add_stock(
product_id: int,
quantity: int,
reference: Optional[str] = None,
notes: Optional[str] = None,
db: Session = Depends(get_db),
):
db_product = db.query(Product).filter(Product.id == product_id).first()
if not db_product:
raise HTTPException(status_code=404, detail="Product not found")
db_product.quantity_in_stock += quantity
movement = StockMovement(
product_id=product_id,
movement_type=MovementType.IN,
quantity=quantity,
reference=reference,
notes=notes,
)
db.add(movement)
db.commit()
db.refresh(db_product)
return {
"message": f"Added {quantity} units to stock",
"new_stock_level": db_product.quantity_in_stock,
}
@router.post("/{product_id}/stock/remove")
def remove_stock(
product_id: int,
quantity: int,
reference: Optional[str] = None,
notes: Optional[str] = None,
db: Session = Depends(get_db),
):
db_product = db.query(Product).filter(Product.id == product_id).first()
if not db_product:
raise HTTPException(status_code=404, detail="Product not found")
if db_product.quantity_in_stock < quantity:
raise HTTPException(status_code=400, detail="Insufficient stock")
db_product.quantity_in_stock -= quantity
movement = StockMovement(
product_id=product_id,
movement_type=MovementType.OUT,
quantity=quantity,
reference=reference,
notes=notes,
)
db.add(movement)
db.commit()
db.refresh(db_product)
return {
"message": f"Removed {quantity} units from stock",
"new_stock_level": db_product.quantity_in_stock,
}