"""Test handling of expense-type metadata"""

# 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 pytest

from . import testutil

from conservancy_beancount.plugin import meta_expense_type

VALID_VALUES = {

    'program': 'program',

    'fundraising': 'fundraising',

    'management': 'management',

    'admin': 'management',

    'administration': 'management',

    'mgmt': 'management',

}

INVALID_VALUES = {

    'porgram',

    'mangement',

    'fundrasing',

    '',

    *testutil.NON_STRING_METADATA_VALUES,

}

TEST_KEY = 'expense-type'

@pytest.fixture(scope='module')

def hook():

    config = testutil.TestConfig()

    return meta_expense_type.MetaExpenseType(config)

@pytest.mark.parametrize('src_value,set_value', VALID_VALUES.items())

def test_valid_values_on_postings(hook, src_value, set_value):

    txn = testutil.Transaction(postings=[

        ('Assets:Cash', -25),

        ('Expenses:General', 25, {TEST_KEY: src_value}),

    ])

    errors = list(hook.run(txn))

    assert not errors

    testutil.check_post_meta(txn, None, {TEST_KEY: set_value})

@pytest.mark.parametrize('src_value', INVALID_VALUES)

def test_invalid_values_on_postings(hook, src_value):

    txn = testutil.Transaction(postings=[

        ('Assets:Cash', -25),

        ('Expenses:General', 25, {TEST_KEY: src_value}),

    ])

    errors = list(hook.run(txn))

    assert errors

    testutil.check_post_meta(txn, None, {TEST_KEY: src_value})

@pytest.mark.parametrize('src_value,set_value', VALID_VALUES.items())

def test_valid_values_on_transactions(hook, src_value, set_value):

    txn = testutil.Transaction(**{TEST_KEY: src_value}, postings=[

        ('Assets:Cash', -25),

        ('Expenses:General', 25),

    ])

    errors = list(hook.run(txn))

    assert not errors

    testutil.check_post_meta(txn, None, {TEST_KEY: set_value})

@pytest.mark.parametrize('src_value', INVALID_VALUES)

def test_invalid_values_on_transactions(hook, src_value):

    txn = testutil.Transaction(**{TEST_KEY: src_value}, postings=[

        ('Assets:Cash', -25),

        ('Expenses:General', 25),

    ])

    errors = list(hook.run(txn))

    assert errors

    testutil.check_post_meta(txn, None, None)

@pytest.mark.parametrize('account', [

    'Assets:Cash',

    'Assets:Receivable:Accounts',

    'Equity:OpeningBalance',

    'Income:Other',

    'Liabilities:CreditCard',

    'Liabilities:Payable:Vacation',

])

def test_non_expense_accounts_skipped(hook, account):

    meta = {TEST_KEY: 'program'}

    txn = testutil.Transaction(postings=[

        (account, -25),

        ('Expenses:General', 25, meta.copy()),

    ])

    errors = list(hook.run(txn))

    assert not errors

    testutil.check_post_meta(txn, None, meta)

@pytest.mark.parametrize('account,set_value', [

    ('Expenses:Services:Accounting', 'management'),

    ('Expenses:Services:Administration', 'management'),

    ('Expenses:Services:Advocacy', 'program'),

    ('Expenses:Services:Development', 'program'),

    ('Expenses:Services:Fundraising', 'fundraising'),

])

def test_default_values(hook, account, set_value):

    txn = testutil.Transaction(postings=[

        ('Liabilites:CreditCard', -25),

        (account, 25),

    ])

    errors = list(hook.run(txn))

    assert not errors

    testutil.check_post_meta(txn, None, {TEST_KEY: set_value})

@pytest.mark.parametrize('date,set_value', [

    (testutil.EXTREME_FUTURE_DATE, None),

    (testutil.FUTURE_DATE, 'program'),

    (testutil.FY_START_DATE, 'program'),

    (testutil.FY_MID_DATE, 'program'),

    (testutil.PAST_DATE, None),

])

def test_default_value_set_in_date_range(hook, date, set_value):

    txn = testutil.Transaction(date=date, postings=[

        ('Liabilites:CreditCard', -25),

        ('Expenses:General', 25),

    ])

    errors = list(hook.run(txn))

    assert not errors

    expect_meta = None if set_value is None else {TEST_KEY: set_value}

    testutil.check_post_meta(txn, None, expect_meta)

@pytest.mark.parametrize('src_value', INVALID_VALUES)

def test_flagged_txn_checked(hook, src_value):

    txn = testutil.Transaction(flag='!', postings=[

        ('Assets:Cash', -25),

        ('Expenses:General', 25, {TEST_KEY: src_value}),

    ])

    errors = list(hook.run(txn))

    assert errors

    testutil.check_post_meta(txn, None, {TEST_KEY: src_value})