#!/usr/bin/env python3

import database
import argparse
import sys


if __name__ == '__main__':

    # Parsing arguments
    parser = argparse.ArgumentParser(
        description="TODO")
    parser.add_argument(
        '-o', '--output', type=argparse.FileType('w'), default=sys.stdout,
        help="TODO")
    parser.add_argument(
        '-f', '--first-party', action='store_true',
        help="TODO")
    parser.add_argument(
        '-e', '--end-chain', action='store_true',
        help="TODO")
    parser.add_argument(
        '-x', '--explain', action='store_true',
        help="TODO")
    parser.add_argument(
        '-r', '--rules', action='store_true',
        help="TODO")
    parser.add_argument(
        '-c', '--count', action='store_true',
        help="TODO")
    args = parser.parse_args()

    DB = database.Database()

    if args.rules:
        if not args.count:
            raise NotImplementedError
        print(DB.count_rules(first_party_only=args.first_party))
    else:
        if args.count:
            raise NotImplementedError
        for domain in DB.export(
            first_party_only=args.first_party,
            end_chain_only=args.end_chain,
            explain=args.explain,
        ):
            print(domain, file=args.output)

    DB.close()