#!/bin/python3
import os
import sys
import logging

logging.basicConfig(format='%(levelname)s\t- %(message)s')
logger = logging.getLogger()
logger.setLevel(logging.INFO)

#send to stdout contents of decrypted file
# encrypted file - encryption metadata
def decryptFile(args):
    if len(args) != 3:
        logger.error("Need encrypted file and it's metadata.")
        sys.exit(-1)

    # If first argument is not a file or not found
    if (not os.path.isfile(args[1])):
        logger.error("File '" + args[1] + "' not found.")
        sys.exit(-1)

    if (not os.path.isfile(args[2])):
        logger.error("File '" + args[2] + "' not found.")
        sys.exit(-1)

    #Get private key to decrypt
    privateKey = ''

    #Decrypt file
    content = 'decrypt(privateKey, args[1])'

    # Send decrypted content to stdout 
    sys.stdout.write(content)


if __name__ == '__main__':
    decryptFile(sys.argv)