"""样本各期应缴合计 vs 合同金额校验"""

from decimal import Decimal
import unittest

from app.services.sample_payment_schedule_validate import (
    schedule_dues_match_contract,
    schedule_required_fields_ok,
)


class TestScheduleValidate(unittest.TestCase):
    def test_match(self):
        ok, msg = schedule_dues_match_contract(
            contract_amount=Decimal("1000"),
            schedules=[{"dueAmount": 600}, {"dueAmount": 400}],
        )
        self.assertTrue(ok)
        self.assertIsNone(msg)

    def test_mismatch(self):
        ok, msg = schedule_dues_match_contract(
            contract_amount=Decimal("1000"),
            schedules=[{"dueAmount": 600}, {"dueAmount": 300}],
            sample_code="S001",
        )
        self.assertFalse(ok)
        self.assertIn("900", msg or "")
        self.assertIn("1000", msg or "")
        self.assertIn("S001", msg or "")

    def test_skip_void(self):
        ok, msg = schedule_dues_match_contract(
            contract_amount=Decimal("500"),
            schedules=[
                {"dueAmount": 500, "scheduleStatus": "open"},
                {"dueAmount": 200, "scheduleStatus": "void"},
            ],
        )
        self.assertTrue(ok)
        self.assertIsNone(msg)

    def test_empty_schedules_skip(self):
        ok, msg = schedule_dues_match_contract(
            contract_amount=Decimal("1000"),
            schedules=[],
        )
        self.assertTrue(ok)
        self.assertIsNone(msg)

    def test_require_amount_and_due_date(self):
        ok, msg = schedule_dues_match_contract(
            contract_amount=Decimal("1000"),
            schedules=[
                {"dueAmount": None, "dueDate": "20261001"},
                {"dueAmount": 500, "dueDate": ""},
            ],
            sample_code="S1",
            require_schedule_fields=True,
        )
        self.assertFalse(ok)
        self.assertIn("应缴金额", msg or "")

    def test_require_fields_ok(self):
        ok, msg = schedule_required_fields_ok(
            schedules=[
                {"dueAmount": 500, "dueDate": "20261001"},
                {"dueAmount": 500, "due_date": "20261101"},
            ]
        )
        self.assertTrue(ok)
        self.assertIsNone(msg)