# Copyright 2016 ACSONE SA/NV (<http://acsone.eu>)
# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).

import datetime

from dateutil.rrule import MONTHLY

from flectra.exceptions import ValidationError
from flectra.tests.common import Form, TransactionCase


class DateRangeGeneratorTest(TransactionCase):
    def setUp(self):
        super().setUp()
        self.generator = self.env["date.range.generator"]
        self.type = self.env["date.range.type"].create(
            {"name": "Fiscal year", "company_id": False, "allow_overlap": False}
        )

        self.company = self.env["res.company"].create({"name": "Test company"})
        self.company_2 = self.env["res.company"].create(
            {"name": "Test company 2", "parent_id": self.company.id}
        )
        self.typeB = self.env["date.range.type"].create(
            {
                "name": "Fiscal year B",
                "company_id": self.company.id,
                "allow_overlap": False,
            }
        )

    def test_generate(self):
        generator = self.generator.create(
            {
                "date_start": "1943-01-01",
                "name_prefix": "1943-",
                "type_id": self.type.id,
                "duration_count": 3,
                "unit_of_time": str(MONTHLY),
                "count": 4,
            }
        )
        generator.action_apply()
        ranges = self.env["date.range"].search([("type_id", "=", self.type.id)])
        self.assertEqual(len(ranges), 4)
        range4 = ranges[3]
        self.assertEqual(range4.date_start, datetime.date(1943, 10, 1))
        self.assertEqual(range4.date_end, datetime.date(1943, 12, 31))
        self.assertEqual(range4.type_id, self.type)

    def test_generator_multicompany_1(self):
        with self.assertRaises(ValidationError):
            self.generator.create(
                {
                    "date_start": "1943-01-01",
                    "name_prefix": "1943-",
                    "type_id": self.typeB.id,
                    "duration_count": 3,
                    "unit_of_time": str(MONTHLY),
                    "count": 4,
                    "company_id": self.company_2.id,
                }
            )

    def test_generator_form(self):
        """Test validation and onchange functionality"""
        form = Form(self.env["date.range.generator"])
        form.type_id = self.type
        form.unit_of_time = str(MONTHLY)
        form.duration_count = 10
        form.date_end = "2021-01-01"
        # Setting count clears date_end
        form.count = 10
        self.assertFalse(form.date_end)
        # Setting date_end clears count
        form.date_end = "2021-01-01"
        self.assertFalse(form.count)
        form.count = 10
        form.name_prefix = "PREFIX"
        # Cannot generate ranges with an invalid name_expr
        with self.assertRaisesRegex(ValidationError, "Invalid name expression"):
            form.name_expr = "'not valid"
        # Setting name_expr clears name_prefix
        form.name_expr = "'PREFIX%s' % index"
        self.assertFalse(form.name_prefix)
        self.assertEqual(form.range_name_preview, "PREFIX01")
        wizard = form.save()

        # Cannot generate ranges without count and without date_end
        wizard.date_end = False
        wizard.count = False
        with self.assertRaisesRegex(ValidationError, "end date.*number of ranges"):
            wizard.action_apply()

        wizard.count = 10
        # Cannot generate ranges without a prefix and without an expression
        wizard.name_expr = False
        wizard.name_prefix = False
        with self.assertRaisesRegex(ValidationError, "prefix.*expression"):
            wizard.action_apply()