# -*- coding: utf-8 -*-
##############################################################################
#
#    Author: Guewen Baconnier
#    Copyright 2014 Camptocamp SA
#
#    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 <http://www.gnu.org/licenses/>.
#
##############################################################################

from openerp.tests import common

from .common import prepare_statement


class TestRuleRounding(common.TransactionCase):

    def setUp(self):
        super(TestRuleRounding, self).setUp()
        self.operation_obj = self.env['account.statement.operation.template']
        self.rule_obj = self.env['account.statement.operation.rule']
        self.operation_round_1 = self.operation_obj.create({
            'name': 'Rounding -1.0 to 0.0',
            'label': 'Rounding',
            'account_id': self.ref('account.rsa'),
            'amount_type': 'percentage_of_total',
            'amount': 100.0,

        })
        self.rule_round_1 = self.rule_obj.create({
            'name': 'Rounding -1.0 to 0.0',
            'rule_type': 'rounding',
            'operations': [(6, 0, (self.operation_round_1.id, ))],
            'amount_min': -1.0,
            'amount_max': 0,
            'sequence': 1,
        })
        self.operation_round_2 = self.operation_obj.create({
            'name': 'Rounding -2.0 to -1.0',
            'label': 'Rounding',
            'account_id': self.ref('account.rsa'),
            'amount_type': 'percentage_of_total',
            'amount': 100.0,

        })
        self.rule_round_2 = self.rule_obj.create({
            'name': 'Rounding -1.0 to 0.0',
            'rule_type': 'rounding',
            'operations': [(6, 0, (self.operation_round_2.id, ))],
            'amount_min': -2.0,
            'amount_max': -1.0,
            'sequence': 2,
        })
        self.operation_round_3 = self.operation_obj.create({
            'name': 'Rounding 0.0 to 2.0',
            'label': 'Rounding',
            'account_id': self.ref('account.rsa'),
            'amount_type': 'percentage_of_total',
            'amount': 100.0,

        })
        self.rule_round_3 = self.rule_obj.create({
            'name': 'Rounding 0.0 to 2.0',
            'rule_type': 'rounding',
            'operations': [(6, 0, (self.operation_round_3.id, ))],
            'amount_min': 0,
            'amount_max': 2,
            'sequence': 2,
        })

    def test_rule_round_1(self):
        """-0.5 => rule round 1"""
        statement_line, move_line = prepare_statement(self, -0.5)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertEquals(rule, self.rule_round_1)

    def test_rule_round_1_limit(self):
        """-1 => rule round 1"""
        statement_line, move_line = prepare_statement(self, -1)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertEquals(rule, self.rule_round_1)

    def test_rule_round_1_near_limit(self):
        """-1.0001 => rule round 1"""
        statement_line, move_line = prepare_statement(self, -1.0001)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertEquals(rule, self.rule_round_1)

    def test_rule_round_2(self):
        """-1.01 => rule round 2"""
        statement_line, move_line = prepare_statement(self, -1.01)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertEquals(rule, self.rule_round_2)

    def test_rule_round_2_limit(self):
        """-2 => rule round 2"""
        statement_line, move_line = prepare_statement(self, -2)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertEquals(rule, self.rule_round_2)

    def test_rule_round_3(self):
        """+1.5 => rule round 3"""
        statement_line, move_line = prepare_statement(self, 1.5)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertEquals(rule, self.rule_round_3)

    def test_rule_round_3_limit(self):
        """+2 => rule round 3"""
        statement_line, move_line = prepare_statement(self, 2)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertEquals(rule, self.rule_round_3)

    def test_rule_no_round_below(self):
        """-3 => no rule"""
        statement_line, move_line = prepare_statement(self, -3)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertFalse(rule)

    def test_rule_no_round_above(self):
        """+3 => no rule"""
        statement_line, move_line = prepare_statement(self, 3)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertFalse(rule)

    def test_rule_no_round_zero(self):
        """0 => no rule"""
        statement_line, move_line = prepare_statement(self, 0)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertFalse(rule)

    def test_rule_no_round_near_zero(self):
        """0.0001 => no rule"""
        statement_line, move_line = prepare_statement(self, 0.0001)
        rule = self.rule_obj.find_first_rule(statement_line, [move_line])
        self.assertFalse(rule)

    def test_operations(self):
        """test operations_for_reconciliation()"""
        statement_line, move_line = prepare_statement(self, -0.5)
        ops = self.rule_obj.operations_for_reconciliation(statement_line.id,
                                                          move_line.ids)
        self.assertEquals(ops, self.operation_round_1)

    def test_multicurrency_lines(self):
        """No rounding rules on multi-currency lines"""
        currency = self.browse_ref('base.AED')
        statement_line, move_line = prepare_statement(
            self,
            -0.5,
            statement_line_currency=currency,
            move_line_currency=currency
        )
        ops = self.rule_obj.operations_for_reconciliation(statement_line.id,
                                                          move_line.ids)
        self.assertFalse(ops)