from datetime import date

from dateutil.relativedelta import relativedelta

from odoo.exceptions import ValidationError
from odoo.tests.common import TransactionCase, tagged


@tagged('post_install', '-at_install')
class TestMembershipMemberDetails(TransactionCase):

    def _tier(self, code, **values):
        return self.env['community.membership.tier'].create({
            'name': code, 'code': code, 'price': 10.0, 'period': 'annual', **values,
        })

    def test_fixed_term_tier_expires_after_term_years(self):
        tier = self._tier('DET-10Y', period='fixed_term', term_years=10)
        partner = self.env['res.partner'].create({'name': 'Ten Year Member', 'membership_tier_id': tier.id})
        partner.action_activate_membership()
        self.assertEqual(partner.membership_expiry, partner.membership_start + relativedelta(years=10))

    def test_name_built_from_first_and_last_name(self):
        partner = self.env['res.partner'].create({'first_name': 'Arun', 'last_name': 'Kumar'})
        self.assertEqual(partner.name, 'Arun Kumar')

    def test_age_counts_birth_month(self):
        partner = self.env['res.partner'].create({'name': 'Aged Member', 'birth_month': '6', 'birth_year': 1960})
        self.assertEqual(partner._age_on(date(2026, 5, 31)), 65)
        self.assertEqual(partner._age_on(date(2026, 6, 1)), 66)

    def test_tier_minimum_age_enforced(self):
        tier = self._tier('DET-SEN', min_age=65)
        this_year = date.today().year
        with self.assertRaises(ValidationError):
            self.env['res.partner'].create({
                'name': 'Too Young', 'membership_tier_id': tier.id,
                'birth_month': '1', 'birth_year': this_year - 30,
            })
        # Unknown birth year is allowed; the board can check documents instead.
        self.env['res.partner'].create({'name': 'Unknown Age', 'membership_tier_id': tier.id})

    def test_birth_year_must_be_plausible(self):
        with self.assertRaises(ValidationError):
            self.env['res.partner'].create({'name': 'Bad Year', 'birth_year': 1850})

    def test_family_members_listed_on_head(self):
        tier = self._tier('DET-FAM', allows_family_members=True)
        head = self.env['res.partner'].create({'name': 'Family Head', 'membership_tier_id': tier.id})
        spouse = self.env['res.partner'].create({'name': 'Spouse', 'family_head_id': head.id})
        self.assertEqual(head.family_member_ids, spouse)

    def test_board_approval(self):
        partner = self.env['res.partner'].create({
            'name': 'Applicant', 'membership_approval_state': 'pending',
        })
        partner.action_approve_membership()
        self.assertEqual(partner.membership_approval_state, 'approved')