#!/usr/bin/env python3

import csv
import static

def writeFile(row, filename = "list.csv", fieldnames = static.fieldlist):
 with open(filename, "a") as csf:
  return csv.DictWriter(csf, fieldnames).writerow(row)

def inputQuery():
 output = {}

 output["number"] = input("Credit Card Number: ")
 assert output["number"].isdecimal() and len(output["number"]) == 16, "Credit card number must be a 16-digit decimal number"

 output["validity"] = input("Validity Date: ")
 output["cvc"] = input("CVC2: ")

 output["ccn"] = input("Customer Control Number: ")
 assert output["ccn"].isdecimal() and len(output["ccn"]) == 6, "Customer Control Number must be a 6-digit decimal number"

 output["purchased_on"] = input("Date of purchase: ")
 output["purchased_at"] = input("Place of purchase: ")

 return output

if __name__ == "__main__":
 writeFile(inputQuery())