"""Unit tests for the pure House Plan validation (validation.py is loaded by path,
without importing the HA integration package)."""
import importlib.util
import os

import pytest
import voluptuous as vol

_PATH = os.path.join(
    os.path.dirname(os.path.dirname(__file__)),
    "custom_components", "houseplan", "validation.py",
)
_spec = importlib.util.spec_from_file_location("hp_validation", _PATH)
v = importlib.util.module_from_spec(_spec)
_spec.loader.exec_module(v)


def test_sanitize_marker_id():
    assert v.sanitize_marker_id("../etc/passwd") == "_etc_passwd"
    assert v.sanitize_marker_id("..") == "misc"       # pure traversal → misc
    assert v.sanitize_marker_id(".") == "misc"
    assert v.sanitize_marker_id("") == "misc"
    assert len(v.sanitize_marker_id("a" * 200)) == 64


def test_sanitize_filename_strips_path():
    assert v.sanitize_filename("/a/b/c/manual.pdf") == "manual.pdf"
    assert v.sanitize_filename("..\\..\\evil.pdf") == "evil.pdf"   # backslashes = a path
    assert v.sanitize_filename("...hidden.pdf") == "hidden.pdf"      # leading dots stripped


def test_file_ext():
    assert v.file_ext("manual.PDF") == "pdf"
    assert v.file_ext("a/b/x.png") == "png"
    assert v.file_ext("noext") == ""


def test_valid_space_id():
    assert v.valid_space_id("f1")
    assert v.valid_space_id("floor-2_a")
    assert not v.valid_space_id("Floor 1")
    assert not v.valid_space_id("a" * 65)
    assert not v.valid_space_id("../x")


def test_room_schema_poly_or_rect():
    v.ROOM_SCHEMA({"id": "r1", "name": "A", "poly": [[0, 0], [1, 0], [1, 1]]})
    v.ROOM_SCHEMA({"id": "r2", "name": "B", "x": 0, "y": 0, "w": 1, "h": 1})
    with pytest.raises(vol.Invalid):
        v.ROOM_SCHEMA({"id": "r3", "name": "C"})
    with pytest.raises(vol.Invalid):
        v.ROOM_SCHEMA({"id": "r4", "name": "D", "poly": [[0, 0], [1, 1]]})


def test_space_schema_aspect_range():
    ok = {"id": "f1", "title": "1", "aspect": 1.4, "view_box": [0, 0, 1, 1], "rooms": []}
    v.SPACE_SCHEMA(ok)
    with pytest.raises(vol.Invalid):
        v.SPACE_SCHEMA({**ok, "aspect": 0})
    with pytest.raises(vol.Invalid):
        v.SPACE_SCHEMA({**ok, "view_box": [0, 0, 1]})


def test_marker_schema():
    v.MARKER_SCHEMA({"id": "m1", "binding": "device:abc"})
    v.MARKER_SCHEMA({"id": "m2", "binding": "virtual", "name": "X",
                     "pdfs": [{"name": "a.pdf", "url": "/u/a.pdf"}]})
    with pytest.raises(vol.Invalid):
        v.MARKER_SCHEMA({"binding": "virtual"})


def test_config_schema_defaults_and_extra():
    out = v.CONFIG_SCHEMA({"spaces": []})
    assert out["markers"] == [] and out["settings"] == {}
    out2 = v.CONFIG_SCHEMA({"spaces": [], "virtual_devices": [], "device_overrides": {}})
    assert "spaces" in out2


def test_config_schema_full_roundtrip():
    cfg = {
        "spaces": [{
            "id": "f1", "title": "Floor 1", "plan_url": "/p/f1.svg",
            "aspect": 0.8, "view_box": [0, 0, 1, 1],
            "rooms": [{"id": "r1", "name": "Hall", "area": "hall",
                       "poly": [[0, 0], [0.5, 0], [0.5, 0.5], [0, 0.5]]}],
            "segments": [[0, 0, 0.5, 0]],
        }],
        "markers": [{"id": "d1", "binding": "device:x", "model": "M", "link": "https://e.com"}],
        "settings": {"group_lights": True},
    }
    out = v.CONFIG_SCHEMA(cfg)
    assert out["spaces"][0]["rooms"][0]["area"] == "hall"
    assert out["markers"][0]["binding"] == "device:x"


def test_layout_schema():
    v.LAYOUT_SCHEMA({"dev1": {"x": 0.1, "y": 0.2, "s": "f1"}})
    with pytest.raises(vol.Invalid):
        v.LAYOUT_SCHEMA({"dev1": {"x": 0.1}})


def test_space_display_settings():
    """Per-space display settings validate; garbage color/mode is rejected."""
    ok = {
        "id": "f1", "title": "Floor 1", "aspect": 1.0, "view_box": [0, 0, 1, 1],
        "rooms": [], "settings": {
            "show_borders": True, "show_names": False,
            "room_color": "#3ea6ff", "room_opacity": 0.5, "fill_mode": "lqi",
        },
    }
    v.SPACE_SCHEMA(ok)
    import pytest as _pytest
    bad_color = dict(ok, settings={"room_color": "javascript:x"})
    with _pytest.raises(Exception):
        v.SPACE_SCHEMA(bad_color)
    bad_mode = dict(ok, settings={"fill_mode": "rainbow"})
    with _pytest.raises(Exception):
        v.SPACE_SCHEMA(bad_mode)


def test_space_temp_bounds():
    """Temperature comfort bounds validate as floats; temp fill mode accepted."""
    ok = {
        "id": "f1", "title": "F", "aspect": 1.0, "view_box": [0, 0, 1, 1], "rooms": [],
        "settings": {"fill_mode": "temp", "temp_min": 19.5, "temp_max": "24"},
    }
    v.SPACE_SCHEMA(ok)


def test_finite_coordinates_rejected():
    """audit B5: NaN/Infinity coordinates must not reach storage."""
    for bad in ("NaN", "Infinity", "-Infinity", float("nan"), float("inf")):
        with pytest.raises(vol.Invalid):
            v.LAYOUT_SCHEMA({"dev1": {"x": bad, "y": 0.5}})
    assert v.LAYOUT_SCHEMA({"dev1": {"x": 0.5, "y": 0.25}})


def test_collection_caps():
    """audit B5: unbounded collections are capped."""
    big = {f"d{i}": {"x": 0.1, "y": 0.1} for i in range(v.MAX_LAYOUT + 1)}
    with pytest.raises(vol.Invalid):
        v.LAYOUT_SCHEMA(big)