"""The data files that ship must not contain an identity we would refuse to use.

`camoufox.coherence` filters at draw time, so an impossible row can never reach
a page either way. This is the second filter, on the data itself: a row that
survives here is one a future refresh could ship, a consumer reading the JSON
directly would get, and a reviewer would take as real. Both filters run the same
rules -- `scripts/clean-fingerprint-data.py --write` is what makes these pass.

Dropped on 2026-09-17: 38 of 435 presets (26 with a GPU their OS cannot report,
7 pairing Apple Silicon with a core count Apple never shipped, 4 with a colour
depth their GPU contradicts, 3 with a phone viewport, 1 claiming 40 touch
points).
"""

import json
import sys
from os.path import dirname, join
from pathlib import Path

import pytest

sys.path.insert(0, join(dirname(__file__), ".."))

from camoufox import coherence  # noqa: E402
from camoufox.fingerprints import from_preset  # noqa: E402

DATA = Path(__file__).parent.parent / "camoufox"
PRESET_FILES = ("fingerprint-presets.json", "fingerprint-presets-v150.json")
OS_KEY = {"macos": "mac", "windows": "win", "linux": "lin"}


@pytest.mark.parametrize("filename", PRESET_FILES)
def test_every_bundled_preset_is_coherent_as_stored(filename):
    presets = json.loads((DATA / filename).read_text())["presets"]
    for os_name, entries in presets.items():
        assert entries, f"{filename}/{os_name} has no presets left"
        for index, preset in enumerate(entries):
            config = from_preset(preset, "152")
            violations = coherence.validate(config, OS_KEY[os_name])
            assert violations == [], (
                f"{filename} {os_name}[{index}]: "
                + "; ".join(v.detail for v in violations)
                + " -- run scripts/clean-fingerprint-data.py --write"
            )


@pytest.mark.parametrize("filename", PRESET_FILES)
def test_every_preset_gpu_has_webgl_data(filename):
    """A preset records only its GPU's name; the WebGL parameters behind it come
    from fpgen. A GPU fpgen has never seen Firefox report on that OS has none, so
    launching it would pair the name with another device's parameters."""
    from camoufox.webgl import firefox_gpus

    presets = json.loads((DATA / filename).read_text())["presets"]
    for os_name, entries in presets.items():
        known = firefox_gpus(os_name)
        for index, preset in enumerate(entries):
            gpu = (preset["webgl"]["unmaskedVendor"], preset["webgl"]["unmaskedRenderer"])
            assert gpu in known, (
                f"{filename} {os_name}[{index}]: {gpu[1]!r} has no WebGL data"
                " -- run scripts/clean-fingerprint-data.py --write"
            )