"""物料日期是发货来源数据，不能由装填操作时间推算。"""

import unittest
from datetime import date

from pydantic import ValidationError

from module_business.entity.vo.operation_vo import FillingCreateModel, FillingModel
from module_business.service.filling_service import FillingService
from tests.module_business.test_filling_service import make_filling


def command_data(**changes):
    return {
        'qrToken': 'qr-material',
        'warehouseId': 7,
        'strainId': 11,
        'batchNo': 'B-20261001',
        'packageSpec': '标准包',
        'initialPackages': 100,
        'idempotencyKey': 'material-date-key',
        **changes,
    }


class TestMaterialDates(unittest.TestCase):
    def test_new_filling_requires_source_dates(self):
        with self.assertRaises(ValidationError):
            FillingCreateModel(**command_data())

    def test_dates_round_trip_without_time_or_timezone_conversion(self):
        command = FillingCreateModel(**command_data(productionDate='2026-10-01', expiryDate='2027-03-31'))
        self.assertEqual(command.production_date, date(2026, 10, 1))
        self.assertEqual(command.model_dump(mode='json', by_alias=True)['expiryDate'], '2027-03-31')

    def test_expiry_cannot_precede_production(self):
        with self.assertRaises(ValidationError) as raised:
            FillingCreateModel(**command_data(productionDate='2026-10-01', expiryDate='2026-09-30'))
        self.assertIn('有效期', str(raised.exception))

    def test_invalid_calendar_dates_are_rejected(self):
        with self.assertRaises(ValidationError):
            FillingCreateModel(**command_data(productionDate='2026-02-30', expiryDate='2027-03-31'))

    def test_changing_either_source_date_changes_idempotency_content(self):
        original = FillingCreateModel(**command_data(productionDate='2026-10-01', expiryDate='2027-03-31'))
        expected = FillingService._build_request_hash(original)
        for field, value in [('productionDate', '2026-10-02'), ('expiryDate', '2027-04-01')]:
            with self.subTest(field=field):
                changed = original.model_dump(by_alias=True)
                changed[field] = value
                self.assertNotEqual(expected, FillingService._build_request_hash(FillingCreateModel(**changed)))

    def test_historical_missing_dates_remain_unknown(self):
        record = make_filling()
        record.production_date = None
        record.expiry_date = None
        result = FillingModel.model_validate(record).model_dump(mode='json', by_alias=True)
        self.assertIsNone(result['productionDate'])
        self.assertIsNone(result['expiryDate'])