from fastapi import FastAPI, HTTPException
from typing import Dict
from app.models import Item, ItemCreate

app = FastAPI(title="FastAPI Example")

# 内存存储
_items: Dict[int, Item] = {}
_item_id_counter = 0


@app.get("/health")
async def health_check():
    return {"status": "ok"}


@app.post("/items", response_model=Item)
async def create_item(item: ItemCreate):
    global _item_id_counter
    _item_id_counter += 1
    new_item = Item(id=_item_id_counter, **item.model_dump())
    _items[_item_id_counter] = new_item
    return new_item


@app.get("/items", response_model=list[Item])
async def list_items():
    return list(_items.values())


@app.get("/items/{item_id}", response_model=Item)
async def get_item(item_id: int):
    if item_id not in _items:
        raise HTTPException(status_code=404, detail="Item not found")
    return _items[item_id]