def test_balance_at_cost_mixed():

    txn = testutil.Transaction(postings=[

        ('Expenses:Other', '22'),

        ('Expenses:Other', '30', 'EUR', ('1.1',)),

        ('Expenses:Other', '40', 'EUR'),

        ('Expenses:Other', '50', 'USD', ('1.1', 'EUR')),

    ])

    related = core.RelatedPostings(data.Posting.from_txn(txn))

    balance = related.balance_at_cost()

    amounts = set(balance.values())

    assert amounts == {testutil.Amount(55, 'USD'), testutil.Amount(95, 'EUR')}

def test_balance_at_single_currency_cost():

    txn = testutil.Transaction(postings=[

        ('Expenses:Other', '22'),

        ('Expenses:Other', '30', 'EUR', ('1.1',)),

        ('Expenses:Other', '40', 'GBP', ('1.1',)),

    ])

    related = core.RelatedPostings(data.Posting.from_txn(txn))

    balance = related.balance_at_cost()

    amounts = set(balance.values())

    assert amounts == {testutil.Amount(99)}

def test_balance_at_cost_zeroed_out():

    txn = testutil.Transaction(postings=[

        ('Income:Other', '-22'),

        ('Assets:Receivable:Accounts', '20', 'EUR', ('1.1',)),

    ])

    related = core.RelatedPostings(data.Posting.from_txn(txn))

    balance = related.balance_at_cost()

    assert balance.is_zero()

def test_balance_at_cost_singleton():

    txn = testutil.Transaction(postings=[

        ('Assets:Receivable:Accounts', '20', 'EUR', ('1.1',)),

    ])

    related = core.RelatedPostings(data.Posting.from_txn(txn))

    balance = related.balance_at_cost()

    amounts = set(balance.values())

    assert amounts == {testutil.Amount(22)}

def test_balance_at_cost_singleton_without_cost():

    txn = testutil.Transaction(postings=[

        ('Assets:Receivable:Accounts', '20'),

    ])

    related = core.RelatedPostings(data.Posting.from_txn(txn))

    balance = related.balance_at_cost()

    amounts = set(balance.values())

    assert amounts == {testutil.Amount(20)}

def test_balance_at_cost_empty():

    related = core.RelatedPostings()

    balance = related.balance_at_cost()

    assert balance.is_zero()

def test_meta_values_empty():

    related = core.RelatedPostings()

    assert related.meta_values('key') == set()

def test_meta_values_no_match():

    related = core.RelatedPostings([

        testutil.Posting('Income:Donations', -1, metakey='metavalue'),

    ])

    assert related.meta_values('key') == {None}

def test_meta_values_no_match_default_given():

    related = core.RelatedPostings([

        testutil.Posting('Income:Donations', -1, metakey='metavalue'),

    ])

    assert related.meta_values('key', '') == {''}

def test_meta_values_one_match():

    related = core.RelatedPostings([

        testutil.Posting('Income:Donations', -1, key='metavalue'),

    ])

    assert related.meta_values('key') == {'metavalue'}

def test_meta_values_some_match():

    related = core.RelatedPostings([

        testutil.Posting('Income:Donations', -1, key='1'),

        testutil.Posting('Income:Donations', -2, metakey='2'),

    ])

    assert related.meta_values('key') == {'1', None}

def test_meta_values_some_match_default_given():

    related = core.RelatedPostings([

        testutil.Posting('Income:Donations', -1, key='1'),

        testutil.Posting('Income:Donations', -2, metakey='2'),

    ])

    assert related.meta_values('key', '') == {'1', ''}

def test_meta_values_all_match():

    related = core.RelatedPostings([

        testutil.Posting('Income:Donations', -1, key='1'),

        testutil.Posting('Income:Donations', -2, key='2'),

    ])

    assert related.meta_values('key') == {'1', '2'}

def test_meta_values_all_match_one_value():

    related = core.RelatedPostings([

        testutil.Posting('Income:Donations', -1, key='1'),

        testutil.Posting('Income:Donations', -2, key='1'),

    ])

    assert related.meta_values('key') == {'1'}

def test_meta_values_all_match_default_given():

    related = core.RelatedPostings([

        testutil.Posting('Income:Donations', -1, key='1'),

        testutil.Posting('Income:Donations', -2, key='2'),

    ])

    assert related.meta_values('key', '') == {'1', '2'}

def test_meta_values_many_types():

    expected = {

        datetime.date(2020, 4, 1),

        Decimal(42),

        testutil.Amount(5),

        'rt:42',

    }

    related = core.RelatedPostings(

        testutil.Posting('Income:Donations', -index, key=value)

        for index, value in enumerate(expected)

    )

    assert related.meta_values('key') == expected

@pytest.mark.parametrize('count', range(3))

def test_all_meta_links_zero(count):

    assert next(related.all_meta_links('approval'), None) is None

def test_all_meta_links_singletons():

    assert set(related.all_meta_links('statement')) == testutil.LINK_METADATA_STRINGS

def test_all_meta_links_multiples():

    assert set(related.all_meta_links('approval')) == testutil.LINK_METADATA_STRINGS

def test_all_meta_links_preserves_order():

    assert list(related.all_meta_links('approval')) == list('123')

def test_group_by_meta_zero():

    assert not list(core.RelatedPostings.group_by_meta([], 'metacurrency'))

def test_group_by_meta_one(credit_card_cycle):

    posting = next(post for post in data.Posting.from_entries(credit_card_cycle)

                   if post.account.is_credit_card())

    actual = core.RelatedPostings.group_by_meta([posting], 'metacurrency')

    assert set(key for key, _ in actual) == {'USD'}

def test_group_by_meta_many(two_accruals_three_payments):

    postings = [post for post in data.Posting.from_entries(two_accruals_three_payments)

                if post.account == 'Assets:Receivable:Accounts']

    actual = dict(core.RelatedPostings.group_by_meta(postings, 'metacurrency'))

    assert set(actual) == {'USD', 'EUR'}

    for key, group in actual.items():

        assert 2 <= len(group) <= 3

        assert group.balance().is_zero()

def test_group_by_meta_many_single_posts(two_accruals_three_payments):

    postings = [post for post in data.Posting.from_entries(two_accruals_three_payments)

                if post.account == 'Assets:Receivable:Accounts']

    actual = dict(core.RelatedPostings.group_by_meta(postings, 'metanumber'))

    assert set(actual) == {post.units.number for post in postings}

    assert len(actual) == len(postings)

"""Mock Beancount objects for testing"""

# Copyright © 2020  Brett Smith

#

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU Affero General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU Affero General Public License for more details.

#

# You should have received a copy of the GNU Affero General Public License

# along with this program.  If not, see <https://www.gnu.org/licenses/>.

import datetime

import itertools

import re

import beancount.core.amount as bc_amount

import beancount.core.data as bc_data

import beancount.loader as bc_loader

import odf.element

import odf.opendocument

import odf.table

from decimal import Decimal

from pathlib import Path

from typing import Any, Optional, NamedTuple

from conservancy_beancount import books, rtutil

EXTREME_FUTURE_DATE = datetime.date(datetime.MAXYEAR, 12, 30)

FUTURE_DATE = datetime.date.today() + datetime.timedelta(days=365 * 99)

FY_START_DATE = datetime.date(2020, 3, 1)

FY_MID_DATE = datetime.date(2020, 9, 1)

PAST_DATE = datetime.date(2000, 1, 1)

TESTS_DIR = Path(__file__).parent

def _ods_cell_value_type(cell):

    assert cell.tagName == 'table:table-cell'

    return cell.getAttribute('valuetype')

def _ods_cell_value(cell):

    value_type = cell.getAttribute('valuetype')

    if value_type == 'currency' or value_type == 'float':

        return Decimal(cell.getAttribute('value'))

    elif value_type == 'date':

        return datetime.datetime.strptime(

            cell.getAttribute('datevalue'), '%Y-%m-%d',

        ).date()

    else:

        return cell.getAttribute('value')

def _ods_elem_text(elem):

    if isinstance(elem, odf.element.Text):

        return elem.data

    else:

        return '\0'.join(_ods_elem_text(child) for child in elem.childNodes)

odf.element.Element.value_type = property(_ods_cell_value_type)

odf.element.Element.value = property(_ods_cell_value)

odf.element.Element.text = property(_ods_elem_text)

def check_lines_match(lines, expect_patterns, source='output'):

    for pattern in expect_patterns:

        assert any(re.search(pattern, line) for line in lines), \

            f"{pattern!r} not found in {source}"

def check_post_meta(txn, *expected_meta, default=None):

    assert len(txn.postings) == len(expected_meta)

    for post, expected in zip(txn.postings, expected_meta):

        if not expected:

            assert not post.meta

        else:

            actual = None if post.meta is None else {

                key: post.meta.get(key, default) for key in expected

            }

            assert actual == expected

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 date_seq(date=FY_MID_DATE, step=1):

    while True:

        yield date

        date += datetime.timedelta(days=step)

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'):

    return bc_amount.Amount(Decimal(number), currency)

def Cost(number, currency='USD', date=FY_MID_DATE, label=None):

    return bc_data.Cost(Decimal(number), currency, date, label)

def Posting(account, number,

            currency='USD', cost=None, price=None, flag=None,

    if cost is not None:

        cost = Cost(*cost)

    if not meta:

        meta = None

        account,

        Amount(number, currency),

        cost,

        price,

        flag,

        meta,

    )

def Transaction(date=FY_MID_DATE, flag='*', payee=None,

                narration='', tags=None, links=None, postings=(),

                **meta):

    if isinstance(date, str):

        date = parse_date(date)

    meta.setdefault('filename', '<test>')

    meta.setdefault('lineno', 0)

    real_postings = []

    for post in postings:

        try:

            post.account

        except AttributeError:

            if isinstance(post[-1], dict):

                args = post[:-1]

                kwargs = post[-1]

            else:

                args = post

                kwargs = {}

            post = Posting(*args, **kwargs)

        real_postings.append(post)

    return bc_data.Transaction(

        meta,

        date,

        flag,

        payee,

        narration,

        set(tags or ''),

        set(links or ''),

        real_postings,

    )

LINK_METADATA_STRINGS = {

    'Invoices/304321.pdf',

    'rt:123/456',

    'rt://ticket/234',

}

NON_LINK_METADATA_STRINGS = {

    '',

    ' ',

    '     ',

}

NON_STRING_METADATA_VALUES = [

    Decimal(5),

    FY_MID_DATE,

    Amount(50),

    Amount(500, None),

]

OPENING_EQUITY_ACCOUNTS = itertools.cycle([

    'Equity:Funds:Unrestricted',

    'Equity:Funds:Restricted',

    'Equity:OpeningBalance',

])

class ODSCell:

    @classmethod

    def from_row(cls, row):

        return row.getElementsByType(odf.table.TableCell)

    @classmethod

    def from_sheet(cls, spreadsheet):

        for row in spreadsheet.getElementsByType(odf.table.TableRow):

            yield list(cls.from_row(row))

    @classmethod

    def from_ods_file(cls, path):

        ods = odf.opendocument.load(path)

        return cls.from_sheet(ods.spreadsheet)

def OpeningBalance(acct=None, **txn_meta):

    if acct is None:

        acct = next(OPENING_EQUITY_ACCOUNTS)

    return Transaction(**txn_meta, postings=[

        ('Assets:Receivable:Accounts', 100),

        ('Assets:Receivable:Loans', 200),

        ('Liabilities:Payable:Accounts', -15),

        ('Liabilities:Payable:Vacation', -25),

        (acct, -260),

    ])

class TestBooksLoader(books.Loader):

    def __init__(self, source):

        self.source = source

    def load_all(self, from_year=None):

        return bc_loader.load_file(self.source)

    def load_fy_range(self, from_fy, to_fy=None):

        return self.load_all()

class TestConfig:

    def __init__(self, *,

                 books_path=None,

                 payment_threshold=0,

                 repo_path=None,

                 rt_client=None,

    ):

        if books_path is None:

            self._books_loader = None

        else:

            self._books_loader = TestBooksLoader(books_path)

        self._payment_threshold = Decimal(payment_threshold)

        self.repo_path = test_path(repo_path)

        self._rt_client = rt_client

        if rt_client is None:

            self._rt_wrapper = None

        else:

            self._rt_wrapper = rtutil.RT(rt_client)

    def books_loader(self):

        return self._books_loader

    def config_file_path(self):

        return test_path('userconfig/conservancy_beancount/config.ini')

    def payment_threshold(self):