import datetime

import itertools

from decimal import Decimal

import pytest

from . import testutil

from conservancy_beancount import data

from conservancy_beancount.reports import core

def accruals_and_payments(acct, src_acct, dst_acct, start_date, *amounts):

    for amt, currency in amounts:

        yield testutil.Transaction(date=next(dates), postings=[

            (acct, amt, currency),

            (dst_acct if amt < 0 else src_acct, -amt, currency),

        ])

@pytest.fixture

def credit_card_cycle():

    return list(accruals_and_payments(

        'Liabilities:CreditCard',

        'Assets:Checking',

        'Expenses:Other',

def combine_values(*value_seqs):

    stop = 0

    for seq in value_seqs:

        try:

            stop = max(stop, len(seq))

        except TypeError:

            pass

    return itertools.islice(

        zip(*(itertools.cycle(seq) for seq in value_seqs)),

        stop,

    )

def parse_date(s, fmt='%Y-%m-%d'):

    return datetime.datetime.strptime(s, fmt).date()

def test_path(s):

    if s is None:

        return s

    s = Path(s)

    if not s.is_absolute():

        s = TESTS_DIR / s

    return s

def Amount(number, currency='USD'):