"""Unit tests for the injector public surfaces.

AZ-406 commits to the type signatures + the NotImplementedError pointer.
AZ-408 will replace each NotImplementedError with a real generator; these
tests will then be updated alongside the implementation.
"""

from __future__ import annotations

from pathlib import Path

import pytest

from fixtures.injectors.blackout_spoof import BlackoutSpoofPlan
from fixtures.injectors.blackout_spoof import build as build_blackout_spoof
from fixtures.injectors.cold_boot import ColdBootFixture
from fixtures.injectors.cold_boot import load as load_cold_boot
from fixtures.injectors.multi_segment import MultiSegmentPlan
from fixtures.injectors.multi_segment import build as build_multi_segment
from fixtures.injectors.outlier import OutlierInjectionPlan
from fixtures.injectors.outlier import build as build_outlier


def test_outlier_plan_dataclass_is_frozen() -> None:
    plan = OutlierInjectionPlan(target_segment_seconds=(0.0, 5.0))
    with pytest.raises(AttributeError):
        plan.max_offset_m = 999.0  # type: ignore[misc]
    assert plan.max_offset_m == 350.0


def test_outlier_build_raises_until_az408_lands() -> None:
    with pytest.raises(NotImplementedError, match="AZ-408"):
        build_outlier(OutlierInjectionPlan(target_segment_seconds=(0.0, 5.0)), Path("/tmp"))


def test_blackout_spoof_plan_round_trip() -> None:
    plan = BlackoutSpoofPlan(blackout_seconds=35.0, spoof_offset_m=120.0, spoof_bearing_deg=90.0)
    assert plan.blackout_seconds == 35.0
    with pytest.raises(NotImplementedError, match="AZ-408"):
        build_blackout_spoof(plan, Path("/tmp"))


def test_multi_segment_plan_defaults() -> None:
    plan = MultiSegmentPlan()
    assert plan.n_segments == 3
    with pytest.raises(NotImplementedError, match="AZ-408"):
        build_multi_segment(plan, Path("/tmp"))


def test_cold_boot_fixture_dataclass_is_frozen() -> None:
    fx = ColdBootFixture(
        lat_deg=50.0, lon_deg=30.0, alt_m=300.0, yaw_deg=180.0, last_valid_fix_age_s=2.5
    )
    with pytest.raises(AttributeError):
        fx.alt_m = 999.0  # type: ignore[misc]


def test_cold_boot_load_raises_until_az419_lands(tmp_path: Path) -> None:
    fixture_path = tmp_path / "cold_boot_fixture.json"
    fixture_path.write_text("{}", encoding="utf-8")
    with pytest.raises(NotImplementedError, match="AZ-419"):
        load_cold_boot(fixture_path)