from fastapi import APIRouter, HTTPException, status
from pydantic import BaseModel, EmailStr, Field
from typing import Dict, List, Optional, Set, Union

router = APIRouter()


class Image(BaseModel):
    url: str
    name: str


class Item(BaseModel):
    name: str
    description: Optional[str] = Field(None, example='A very nice Item')
    price: float
    tax: Optional[float] = None
    is_offer: Optional[bool] = None
    #tags: List[str] = [] # not unique tags
    tags: Set[str] = set() # unique tags
    image: Optional[Image] = None # one image
    images: Optional[List[Image]] = None # or as a list of images


@router.get('/')
async def read_items():
    return [{'name': 'Item Foo'}, {'name': 'item Bar'}]


@router.get('/{item_id}')
async def read_item(item_id: str):
    return {'name': 'Fake Specific Item', 'item_id': item_id}


@router.put(
    '/{item_id}',
    tags=['Extra Tag'],
    responses={403: {'description': 'Operation forbidden'}},
)
async def update_item(item_id: str):
    if item_id != 'foo':
        raise HTTPException(status_code=403, detail='You can only update the item: foo')
    return {'item_id': item_id, 'name': 'The Fighters'}