product

import json

class Product:
    def __init__(self):
        self.data = []
        while True:
            self.name = input("Product: ")
            self.price = float(input("Price: "))
            end = input("Continue Y/N: ")
            if self.price < 0:
                print("Invalid price")
                self.price = 0
                
            self.data.append([self.name, self.price])

            if end in ['Y', 'y']:
                continue
            else:
                break
                

    def print_info(self):
        for d in self.data:
            print(d)


class ProductList:
    def __init__(self, product):
        self.__filename = 'data.json'
        data = []
        for p in product:
            data.append(
                {
                    "name":p[0],
                    "price":p[1]
                }
            )
        with open(self.__filename, 'w') as file:
                json.dump(data, file, indent=4)
                

    def readFromFile(self):
        with open(self.__filename, 'r') as file:
            data = json.load(file)

        for values in data:
            print(f"Product: {values['name']}, Price: {values['price']}")
            


if __name__ == '__main__':
    p1 = Product()
    ProductList(p1.data).readFromFile()