import unittest

from scripts.match_payments import canonical_member_key, reconcile


class TestCanonicalMemberKey(unittest.TestCase):
    def test_diacritics_and_case_collapse(self):
        self.assertEqual(canonical_member_key("Mária Maco"), "maria maco")
        self.assertEqual(canonical_member_key("MARIA MACO"), "maria maco")
        self.assertEqual(canonical_member_key("maria maco"), "maria maco")

    def test_whitespace_runs_collapse(self):
        self.assertEqual(canonical_member_key("Mária  Maco"), "maria maco")
        self.assertEqual(canonical_member_key("  Mária Maco  "), "maria maco")

    def test_unknown_name_passes_through_normalized(self):
        # Two genuinely different names must not collide.
        self.assertNotEqual(
            canonical_member_key("Mária Maco"),
            canonical_member_key("Marek Maco"),
        )


class TestReconcileTolerantPersonMatching(unittest.TestCase):
    def _members(self):
        return [("Mária Maco", "A", {"2026-04": (750, 4)})]

    def _tx(self, person):
        return {
            "date": "2026-04-15",
            "amount": 750,
            "person": person,
            "purpose": "2026-04",
            "inferred_amount": 750,
            "sender": "Maco Family",
            "message": "fee",
        }

    def test_person_without_diacritics_matches(self):
        result = reconcile(self._members(), ["2026-04"], [self._tx("Maria Maco")], {})

        member = result["members"]["Mária Maco"]
        self.assertEqual(member["months"]["2026-04"]["paid"], 750)
        self.assertEqual(len(member["months"]["2026-04"]["transactions"]), 1)
        self.assertEqual(result["unmatched"], [])

    def test_person_with_extra_whitespace_matches(self):
        result = reconcile(self._members(), ["2026-04"], [self._tx("Mária  Maco")], {})

        self.assertEqual(result["members"]["Mária Maco"]["months"]["2026-04"]["paid"], 750)
        self.assertEqual(result["unmatched"], [])

    def test_person_lowercase_matches(self):
        result = reconcile(self._members(), ["2026-04"], [self._tx("mária maco")], {})

        self.assertEqual(result["members"]["Mária Maco"]["months"]["2026-04"]["paid"], 750)
        self.assertEqual(result["unmatched"], [])

    def test_truly_unknown_person_still_unmatched(self):
        result = reconcile(
            self._members(), ["2026-04"], [self._tx("Někdo Neznámý")], {}
        )

        self.assertEqual(result["members"]["Mária Maco"]["months"]["2026-04"]["paid"], 0)
        self.assertEqual(len(result["unmatched"]), 1)


if __name__ == "__main__":
    unittest.main()