from __future__ import annotations

import unittest

from seat_domain.intent import parse_local_intent


class LocalIntentParserTests(unittest.TestCase):
    @staticmethod
    def context(level: int = 0) -> dict:
        return {
            "last_target": "passenger" if level else None,
            "devices": {
                "driver": {
                    "ventilation": {"state": "off", "level": 0},
                    "heating": {"state": "off", "level": 0},
                },
                "passenger": {
                    "ventilation": {"state": "on" if level else "off", "level": level},
                    "heating": {"state": "off", "level": 0},
                },
            },
        }

    def test_parses_passenger_ventilation_on(self) -> None:
        result = parse_local_intent("打开副驾座椅通风")

        self.assertEqual(
            result["actions"],
            [
                {
                    "target": "passenger",
                    "function": "ventilation",
                    "state": "on",
                    "requested_level": None,
                }
            ],
        )
        self.assertEqual(result["ambiguities"], [])

    def test_rejects_scope_that_includes_driver(self) -> None:
        result = parse_local_intent("主副驾座椅通风都打开")

        self.assertEqual(result["actions"], [])
        self.assertEqual(result["ambiguities"][0]["field"], "target")
        self.assertIn("仅控制副驾", result["ambiguities"][0]["question"])

    def test_keeps_requested_level_for_safety_validation(self) -> None:
        result = parse_local_intent("副驾座椅加热开到三档")

        self.assertEqual(result["actions"][0]["requested_level"], 3)

    def test_defaults_missing_target_to_passenger(self) -> None:
        result = parse_local_intent("打开座椅通风")

        self.assertEqual(result["actions"][0]["target"], "passenger")
        self.assertEqual(result["ambiguities"], [])

    def test_parses_four_axis_zero_for_passenger(self) -> None:
        result = parse_local_intent("把水平、坐盆、靠背、腿托四轴归零")

        self.assertEqual(result["ambiguities"], [])
        self.assertEqual(
            [(action["axis"], action["position_pct"]) for action in result["actions"]],
            [
                ("longitudinal", 0),
                ("cushion_tilt", 0),
                ("backrest_recline", 0),
                ("legrest_height", 0),
            ],
        )
        self.assertTrue(
            all(action["target"] == "passenger" for action in result["actions"])
        )

    def test_parses_explicit_motion_percentages(self) -> None:
        result = parse_local_intent("副驾水平移到63%，靠背调到54%")

        self.assertEqual(result["ambiguities"], [])
        self.assertEqual(
            [(action["axis"], action["position_pct"]) for action in result["actions"]],
            [("longitudinal", 63), ("backrest_recline", 54)],
        )

    def test_rejects_driver_four_axis_zero(self) -> None:
        result = parse_local_intent("把主驾座椅四轴归零")

        self.assertEqual(result["actions"], [])
        self.assertEqual(result["ambiguities"][0]["field"], "target")
        self.assertIn("仅控制副驾", result["ambiguities"][0]["question"])

    def test_maps_mild_hot_and_stuffy_feedback_to_level_one(self) -> None:
        result = parse_local_intent("副驾有点热，有点闷", self.context())

        self.assertEqual(
            result["actions"],
            [
                {
                    "target": "passenger",
                    "function": "ventilation",
                    "state": "on",
                    "requested_level": 1,
                }
            ],
        )
        self.assertIn("热、闷", "".join(result["decision_summary"]))

    def test_increments_active_level_for_continuing_discomfort(self) -> None:
        result = parse_local_intent("还有点闷", self.context(level=1))

        self.assertEqual(result["actions"][0]["requested_level"], 2)
        self.assertEqual(result["actions"][0]["target"], "passenger")
        self.assertIn("提升到2档", "".join(result["decision_summary"]))

    def test_cold_feedback_reduces_active_ventilation_before_heating(self) -> None:
        result = parse_local_intent("我有点冷", self.context(level=1))

        self.assertEqual(
            result["actions"],
            [
                {
                    "target": "passenger",
                    "function": "ventilation",
                    "state": "off",
                    "requested_level": None,
                }
            ],
        )
        self.assertIn("不立即开启加热", "".join(result["decision_summary"]))

    def test_airflow_cause_targets_ventilation_not_heating(self) -> None:
        context = self.context()
        context["devices"]["passenger"]["ventilation"] = {"state": "on", "level": 2}
        result = parse_local_intent("副驾吹的我有点冷", context)

        self.assertEqual(
            result["actions"],
            [
                {
                    "target": "passenger",
                    "function": "ventilation",
                    "state": "on",
                    "requested_level": 1,
                }
            ],
        )
        self.assertNotIn("heating", {action["function"] for action in result["actions"]})
        self.assertIn("致冷来源", "".join(result["decision_summary"]))

    def test_cold_and_stuffy_are_independent_comfort_dimensions(self) -> None:
        result = parse_local_intent("副驾有点冷、有点闷", self.context())

        self.assertEqual(
            {
                (action["function"], action["state"], action["requested_level"])
                for action in result["actions"]
            },
            {("heating", "on", 1), ("ventilation", "on", 1)},
        )
        self.assertEqual(result["ambiguities"], [])
        self.assertIn("不将其判定为语义冲突", "".join(result["decision_summary"]))

    def test_vehicle_scope_does_not_inherit_a_seat_target(self) -> None:
        result = parse_local_intent("车上太闷了", self.context(level=1))

        self.assertEqual(result["actions"], [])
        self.assertEqual(result["ambiguities"][0]["field"], "domain")
        self.assertEqual(result["detected_domains"], ["climate"])
        self.assertEqual(result["scope"], "vehicle")
        self.assertIn("整车舱范围", "".join(result["decision_summary"]))


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