import unittest

from app.crud.production_task_set import (
    collect_missing_route_ids,
    normalize_item_payload,
    skip_empty_named_tasks,
)


class TestNormalizeItemPayload(unittest.TestCase):
    def test_requires_task_name(self):
        self.assertIsNone(normalize_item_payload({"taskName": "  ", "routeId": "r1"}))

    def test_keeps_optional_fields(self):
        item = normalize_item_payload(
            {
                "taskName": "分离",
                "routeId": " r1 ",
                "description": " d ",
                "remark": " m ",
            }
        )
        self.assertEqual(
            item,
            {
                "task_name": "分离",
                "route_id": "r1",
                "description": "d",
                "remark": "m",
            },
        )

    def test_empty_route_becomes_none(self):
        item = normalize_item_payload({"taskName": "培养", "routeId": ""})
        self.assertEqual(item["route_id"], None)
        self.assertEqual(item["description"], None)
        self.assertEqual(item["remark"], None)


class TestSkipEmptyNamedTasks(unittest.TestCase):
    def test_skips_blank_names_and_counts(self):
        kept, skipped = skip_empty_named_tasks(
            [
                {"task_name": "A", "route_id": "r1", "description": None, "remark": "x"},
                {"task_name": "  ", "route_id": "r2"},
                {"task_name": None, "route_id": None},
            ]
        )
        self.assertEqual(skipped, 2)
        self.assertEqual(len(kept), 1)
        self.assertEqual(kept[0]["task_name"], "A")
        self.assertEqual(kept[0]["remark"], "x")


class TestCollectMissingRouteIds(unittest.TestCase):
    def test_empty_route_not_missing(self):
        self.assertEqual(
            collect_missing_route_ids(
                [{"route_id": None}, {"route_id": ""}],
                {"alive"},
            ),
            [],
        )

    def test_lists_missing_preserving_order_unique(self):
        self.assertEqual(
            collect_missing_route_ids(
                [{"route_id": "gone"}, {"route_id": "alive"}, {"route_id": "gone"}],
                {"alive"},
            ),
            ["gone"],
        )


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