from fastapi import FastAPI
import json

app = FastAPI()

@app.get("/")
def home():
    return {"message": "Welcome to DemoTel Product Catalog"}

@app.get("/products")
def get_products():
    with open("products.json", "r") as file:
        products = json.load(file)
    return products

@app.get("/products/{productid}")
def get_product(productid: str):
    with open("products.json", "r") as file:
        products = json.load(file)

    for product in products:
        if product["productid"] == productid:
            return product

    return {"error": "Product not found"}