from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import FileResponse
import os

from src.classes import product_classes, cash_classes
from src.config import definitions
from src.modules import price_to_cash_calculator
from shop_validators import image_validator
from src import data_connection

app = FastAPI()

origins = [
    "*" #Will become something like 'shop.yarnecoppens.com'
]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.get("/")
def read_root():
    return {"Hello": "World"}

@app.get("/products", response_model=list[product_classes.Product])
def get_all_products():
    return data_connection.get_all_products()

@app.get("/products/{barcode}", response_model=product_classes.Product)
def get_single_product(barcode: int):
    return data_connection.get_single_product(barcode)

@app.get("/icons/{icon_filename}", response_class=FileResponse)
def get_icon(icon_filename: str):
    full_filepath = os.path.join(definitions.ICONS_PATH, icon_filename) + ".svg"
    assert os.path.exists(full_filepath), f"File {full_filepath} not found"
    assert image_validator.is_valid_svg(file_name=full_filepath), f"File {full_filepath} is not a valid image"

    return full_filepath

@app.get("/price_to_cash/{price}", response_model=cash_classes.AmountOfBills)
def price_to_cash(price: int):
    cash_model = price_to_cash_calculator.price_to_cash_model(price)

    return cash_model