from __future__ import annotations

from pathlib import Path

import pytest

from cognitive_agent.infrastructure.speech.understanding import (
    UnderstandingTranscriptProcessor,
)

REPOSITORY_ROOT = Path(__file__).resolve().parents[2]


@pytest.fixture(scope="module")
def processor() -> UnderstandingTranscriptProcessor:
    return UnderstandingTranscriptProcessor(REPOSITORY_ROOT)


def test_preview_only_request_preserves_duration_and_governing_connector(
    processor: UnderstandingTranscriptProcessor,
) -> None:
    result = processor.process(
        "主驾座椅靠背向后移动3s，先不要下发，给出解析的控制指令"
    )

    assert result.assistant_text == (
        "将主驾座椅靠背向后移动3秒，先不要下发，给出解析的控制指令。"
    )
    assert result.clean_text == "将主驾座椅靠背向后移动3秒。"
    assert len(result.commands) == 1
    command = result.commands[0]
    assert command.capability == "seat.set_driver_axis_native"
    assert command.parameters == {
        "axis": "backrest",
        "direction": "backward",
        "duration_ms": 3000,
    }
    assert "angle_delta_deg" not in command.parameters
    assert command.resolution_status == "unsupported"
    assert any("工程上限2000" in issue for issue in command.validation_issues)
    assert not result.execution_eligible


@pytest.mark.parametrize(
    ("spoken", "duration_ms", "display"),
    (
        ("2s", 2000, "2秒"),
        ("1.5秒", 1500, "1.5秒"),
        ("300ms", 300, "300毫秒"),
        ("300毫秒", 300, "300毫秒"),
        ("一秒", 1000, "1秒"),
        ("两秒", 2000, "2秒"),
        ("半秒", 500, "500毫秒"),
        ("一点五秒", 1500, "1.5秒"),
    ),
)
def test_explicit_duration_units_remain_explicit_in_structured_and_display_text(
    processor: UnderstandingTranscriptProcessor,
    spoken: str,
    duration_ms: int,
    display: str,
) -> None:
    result = processor.process(f"主驾椅背向后移动{spoken}")

    assert result.commands[0].parameters["duration_ms"] == duration_ms
    assert "duration_ms" not in result.commands[0].qualifiers.get(
        "implicit_parameters", ()
    )
    assert display in result.clean_text
    assert display in result.assistant_text
    assert "angle_delta_deg" not in result.commands[0].parameters


@pytest.mark.parametrize(
    ("spoken", "duration_ms"),
    (("3s", 3000), ("三秒", 3000), ("1分钟", 60_000)),
)
def test_out_of_range_time_stays_a_duration_and_fails_closed(
    processor: UnderstandingTranscriptProcessor,
    spoken: str,
    duration_ms: int,
) -> None:
    result = processor.process(f"主驾座椅靠背向后移动{spoken}")

    command = result.commands[0]
    assert command.capability == "seat.set_driver_axis_native"
    assert command.parameters["duration_ms"] == duration_ms
    assert "angle_delta_deg" not in command.parameters
    assert command.resolution_status == "unsupported"
    assert not result.execution_eligible


def test_time_unit_is_not_reinterpreted_as_passenger_backrest_angle(
    processor: UnderstandingTranscriptProcessor,
) -> None:
    result = processor.process("副驾座椅靠背向后移动3s")

    assert result.assistant_text == "副驾座椅靠背向后移动3s。"
    assert result.commands[0].parameters == {}
    assert result.commands[0].resolution_status == "incomplete"
    assert "seat_timed_motion_not_registered_for_scope" in result.reasons
    assert not result.execution_eligible


def test_default_driver_axis_duration_remains_implicit(
    processor: UnderstandingTranscriptProcessor,
) -> None:
    result = processor.process("主驾座椅靠背向后移动")

    command = result.commands[0]
    assert command.parameters["duration_ms"] == 500
    assert "duration_ms" in command.qualifiers["implicit_parameters"]
    assert "500" not in result.assistant_text
    assert result.assistant_text == "将主驾座椅靠背向后调整。"