#!/usr/bin/env python3
#
# This file is formatted with ruff format

from configparser import ConfigParser
from dataclasses import dataclass, field

import ctypes
import logging
import pytest
import string

from . import (
    WacomAxisType,
    WacomBuilder,
    WacomBustype,
    WacomDatabase,
    WacomDevice,
    WacomEraserType,
    WacomStatusLed,
    WacomStylus,
    WacomStylusType,
)

logger = logging.getLogger(__name__)


@dataclass
class StylusEntry:
    id: str
    name: str
    group: str = "generic-with-eraser"
    paired_stylus_ids: list[str] = field(default_factory=list)
    buttons: int = 2
    axes: str = "Tilt;Pressure;Distance;"
    stylus_type: str = "General"
    eraser_type: str | None = None
    alias_of: str | None = None
    has_wheel: str | None = None
    has_lens: str | None = None

    def add_to_config(self, config: ConfigParser):
        c = {
            "Name": self.name,
            "Group": self.group,
            "PairedStylusIds": ";".join(self.paired_stylus_ids),
            "Buttons": f"{self.buttons}",
            "Axes": self.axes,
            "Type": self.stylus_type,
        }
        for attr in ["eraser_type", "alias_of", "has_wheel", "has_lens"]:
            if (val := getattr(self, attr, None)) is not None:
                key = attr.title().replace("_", "")
                # We need lowercase true/false
                c[key] = val if not isinstance(val, bool) else str(val).lower()

        config[self.id] = c

    @classmethod
    def generic_pen(cls) -> "StylusEntry":
        return cls(
            id="0x0:0xaffff", name="General Pen", paired_stylus_ids=["0x0:0xafffe"]
        )

    @classmethod
    def generic_eraser(cls) -> "StylusEntry":
        return StylusEntry(
            id="0x0:0xafffe",
            name="General Pen Eraser",
            paired_stylus_ids=["0x0:0xaffff"],
            eraser_type="Invert",
        )


@dataclass
class StylusFile:
    entries: list[StylusEntry]

    @classmethod
    def default(cls) -> "StylusFile":
        return cls(
            entries=[
                StylusEntry.generic_pen(),
                StylusEntry.generic_eraser(),
            ]
        )

    def write_to_dir(self, dir, filename="libwacom.stylus"):
        config = ConfigParser()
        config.optionxform = lambda option: option

        for s in self.entries:
            s.add_to_config(config)

        with open(dir / filename, "w") as fd:
            config.write(fd, space_around_delimiters=False)

        if logger.getEffectiveLevel() == logging.DEBUG:
            logger.debug(f"{dir}/{filename}:")
            for line in open(dir / filename).readlines():
                logger.debug(f"  {line.rstrip()}")


@dataclass
class TabletFile:
    name: str
    matches: list[str]
    width: int = 9
    height: int = 6
    integrated_in: str = ""
    klass: str = "Bamboo"
    layout: str = ""
    has_stylus: bool = True
    is_reversible: bool = False
    styli: list[str] = field(default_factory=list)
    # extra additions to the tablet file, e.g. { "Buttons": { "Left" : "A;B;" }
    extra: dict[str, dict[str, str]] = field(default_factory=dict)

    def write_to(self, filename):
        config = ConfigParser()
        config.optionxform = lambda option: option

        cfg = {}
        cfg["Device"] = {
            "Name": self.name,
            "DeviceMatch": ";".join(self.matches),
            "Width": self.width,
            "Height": self.height,
            "IntegratedIn": self.integrated_in,
            "Class": self.klass,
            "Layout": self.layout,
        }
        if self.styli:
            cfg["Device"]["Styli"] = ";".join(self.styli)

        cfg["Features"] = {
            "Stylus": self.has_stylus,
            "Reversible": self.is_reversible,
        }

        cfg = cfg | self.extra

        for k, v in cfg.items():
            config[k] = v

        with open(filename, "w") as fd:
            config.write(fd, space_around_delimiters=False)

        if logger.getEffectiveLevel() == logging.DEBUG:
            logger.debug(f"{filename}:")
            for line in open(filename).readlines():
                logger.debug(f"  {line.rstrip()}")


@pytest.fixture()
def custom_datadir(tmp_path):
    StylusFile.default().write_to_dir(tmp_path)
    TabletFile(name="Generic", matches=["generic"]).write_to(
        tmp_path / "generic.tablet"
    )
    return tmp_path


def test_database_init(db):
    """Just a test to make sure it doesn't crash"""
    assert db is not None


def test_invalid_device(db):
    device = db.new_from_usbid(0x0, 0x0)
    assert device is None


def test_intuos4(db):
    device = db.new_from_usbid(0x056A, 0x00BC)
    assert device is not None

    assert device.name == "Wacom Intuos4 WL"
    assert device.get_class() == device.CLASS_INTUOS4
    assert device.vendor_id == 0x56A
    assert device.product_id == 0xBC
    assert device.bustype == WacomBustype.USB
    assert device.num_buttons == 9
    assert device.has_stylus()
    assert device.is_reversible()
    assert not device.has_touch()
    assert device.has_ring()
    assert not device.has_ring2()
    assert device.num_rings == 1
    assert not device.has_touchswitch()
    assert device.num_strips == 0
    assert device.num_dials == 0
    assert device.integration_flags == []
    assert device.width == 8
    assert device.height == 5

    matches = device.matches
    assert len(matches) == 2
    assert any(match.bustype == device.bustype for match in matches)
    assert any(match.vendor_id == device.vendor_id for match in matches)
    assert any(match.product_id == device.product_id for match in matches)


def test_intuos4_wl(db):
    device = db.new_from_usbid(0x056A, 0x00B9)
    assert device is not None

    assert WacomDevice.ButtonFlags.RING_MODESWITCH in device.button_flags("A")
    assert WacomDevice.ButtonFlags.OLED in device.button_flags("I")
    assert device.ring_num_modes == 4


def test_cintiq24hd(db):
    device = db.new_from_usbid(0x056A, 0x00F4)
    assert device is not None

    assert device.ring_num_modes == 3
    assert device.ring2_num_modes == 3


def test_cintiq21ux(db):
    device = db.new_from_usbid(0x056A, 0x00CC)
    assert device is not None

    assert device.num_strips == 2
    assert device.num_dials == 0


def test_wacf004(db):
    device = db.new_from_name("Wacom Serial Tablet WACf004")
    assert device is not None
    assert device.model_name is None
    assert device.integration_flags == [
        WacomDevice.IntegrationFlags.DISPLAY,
        WacomDevice.IntegrationFlags.SYSTEM,
    ]


def test_cintiq24hdt(db):
    device = db.new_from_usbid(0x056A, 0x00F8)
    assert device is not None

    match = device.paired_device
    assert match is not None
    assert match.vendor_id == 0x56A
    assert match.product_id == 0xF6
    assert match.bustype == device.BUSTYPE_USB

    modes = {"A": 0, "B": 1, "C": 2, "I": 0, "J": 1, "K": 2}
    for btn in string.ascii_uppercase[: device.num_buttons]:
        expected_mode = modes.get(btn, WacomDevice.ModeSwitch.NEXT)
        assert device.button_modeswitch_mode(btn) == expected_mode


def test_cintiq13hd(db):
    libevdev = pytest.importorskip("libevdev")
    device = db.new_from_name("Wacom Cintiq 13HD")
    assert device is not None

    assert device.button_evdev_code("A") == libevdev.EV_KEY.BTN_0.value
    assert device.button_evdev_code("B") == libevdev.EV_KEY.BTN_1.value
    assert device.button_evdev_code("C") == libevdev.EV_KEY.BTN_2.value
    assert device.button_evdev_code("D") == libevdev.EV_KEY.BTN_3.value
    assert device.button_evdev_code("E") == libevdev.EV_KEY.BTN_4.value
    assert device.button_evdev_code("F") == libevdev.EV_KEY.BTN_5.value
    assert device.button_evdev_code("G") == libevdev.EV_KEY.BTN_6.value
    assert device.button_evdev_code("H") == libevdev.EV_KEY.BTN_7.value
    assert device.button_evdev_code("I") == libevdev.EV_KEY.BTN_8.value
    assert device.model_name == "DTK-1300"


def test_cintiqpro13(db):
    device = db.new_from_name("Wacom Cintiq Pro 13")
    assert device is not None
    assert device.num_keys == 5

    for btn in string.ascii_uppercase[: device.num_buttons]:
        assert device.button_modeswitch_mode(btn) == WacomDevice.ModeSwitch.NEXT


def test_dell_canvas(db):
    device = db.new_from_name("Dell Canvas 27")
    assert device is not None
    assert device.integration_flags == [WacomDevice.IntegrationFlags.DISPLAY]


def test_bamboo_pen(db):
    libevdev = pytest.importorskip("libevdev")

    device = db.new_from_name("Wacom Bamboo Pen")
    assert device is not None
    assert device.button_evdev_code("A") == libevdev.EV_KEY.BTN_BACK.value
    assert device.button_evdev_code("B") == libevdev.EV_KEY.BTN_FORWARD.value
    assert device.button_evdev_code("C") == libevdev.EV_KEY.BTN_LEFT.value
    assert device.button_evdev_code("D") == libevdev.EV_KEY.BTN_RIGHT.value
    assert device.model_name == "MTE-450"


def test_isdv4_4800(db):
    device = db.new_from_usbid(0x56A, 0x4800)
    assert device is not None

    assert device.integration_flags == [
        WacomDevice.IntegrationFlags.DISPLAY,
        WacomDevice.IntegrationFlags.SYSTEM,
    ]
    assert device.model_name is None

    assert device.vendor_id == 0x56A
    assert device.product_id == 0x4800
    assert device.num_buttons == 0


def test_mobilestudio_pro_modeswitch(db):
    device = db.new_from_name("Wacom MobileStudio Pro 13")
    assert device is not None

    modes = {"H": 0, "I": 1, "J": 2, "K": 3}
    for btn in string.ascii_uppercase[: device.num_buttons]:
        expected_mode = modes.get(btn, WacomDevice.ModeSwitch.NEXT)
        assert device.button_modeswitch_mode(btn) == expected_mode


@pytest.mark.parametrize(
    "usbid,expected",
    [
        [(0x256C, 0x0067), [WacomStylus.Generic.PEN_NO_ERASER]],
        [
            (0x04F3, 0x264C),
            [
                WacomStylus.Generic.PEN_WITH_ERASER,
                WacomStylus.Generic.ERASER,
                WacomStylus.Generic.PEN_NO_ERASER,
            ],
        ],
    ],
)
def test_generic_pens(db, usbid, expected):
    # Inspiroy 2 has a generic-pen-no-eraser
    device = db.new_from_usbid(*usbid)
    assert device is not None

    nstyli = ctypes.c_int()
    styli = device.get_supported_styli(ctypes.byref(nstyli))
    s = [WacomStylus.Generic(id) for id in styli[: nstyli.value]]

    assert sorted(s) == sorted(expected)


@pytest.mark.parametrize(
    "bus,vid,pid",
    [
        (WacomBustype.USB, 0x56A, 0xBC),
        (WacomBustype.BLUETOOTH, 0x56A, 0xBD),
        (WacomBustype.UNKNOWN, 0x56A, 0xBD),
    ],
)
def test_new_from_builder_ids(db, bus, vid, pid):
    match = WacomBuilder.create(bus=bus, usbid=(vid, pid))
    device = db.new_from_builder(match)

    assert device is not None
    assert device.vendor_id == vid
    assert device.product_id == pid
    if bus != WacomBustype.UNKNOWN:
        assert device.bustype == bus
    else:
        # unkonwn bustype means "search for it" and
        # for this test that's bluetooth:
        # 0x56a/0bd is a bluetooth tablet
        assert device.bustype == WacomBustype.BLUETOOTH


def test_new_from_builder_empty(db):
    builder = WacomBuilder.create()
    device = db.new_from_builder(builder)
    assert device is None, f"Unexpected device: {device.name}"


def test_new_from_builder_device_name(db):
    builder = WacomBuilder.create(device_name="Wacom Bamboo Pen")
    device = db.new_from_builder(builder)
    assert device is not None

    # Fallback device with name override
    builder.device_name = "does not exist"
    device = db.new_from_builder(builder, fallback=WacomDatabase.Fallback.GENERIC)
    assert device is not None
    assert device.name == "does not exist"


def test_new_from_builder_uniq(db):
    builder = WacomBuilder.create(uniq="OEM02_T18e")
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "GAOMON S620"

    # uniq + match name triggers normal builder
    # but since vid/pid isn't set this does not find a match
    builder = WacomBuilder.create(uniq="OEM02_T18e")
    builder.match_name = "GAOMON Gaomon Tablet Pen"
    device = db.new_from_builder(builder)
    assert device is None

    # Once we set the vid/pid we get a match
    builder.usbid = (0x256C, 0x6D)
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "GAOMON S620"

    # uniq + name triggers normal builder but we don't have a code path
    # for that, it's a normal nameless match and
    # since vid/pid isn't set this does not find a match
    builder = WacomBuilder.create(uniq="OEM02_T18e")
    builder.device_name = "GAOMON S620"
    device = db.new_from_builder(builder)
    assert device is None


def test_exact_matches(custom_datadir):
    USBID = (0x1234, 0x5678)
    UNIQ = "uniqval"
    NAME = "nameval"

    # A device match with uniq but no name
    matches = ["usb|1234|5678||uniqval"]
    TabletFile(name="UniqOnly", matches=matches).write_to(
        custom_datadir / "uniq.tablet"
    )

    # A device match with a name but no uniq
    matches = ["usb|1234|5678|nameval"]
    TabletFile(name="NameOnly", matches=matches).write_to(
        custom_datadir / "name.tablet"
    )

    # A device match with both
    matches = ["usb|1234|5678|nameval|uniqval"]
    TabletFile(name="Both", matches=matches).write_to(custom_datadir / "both.tablet")

    db = WacomDatabase(path=custom_datadir)

    builder = WacomBuilder.create(usbid=USBID, uniq=UNIQ)
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "UniqOnly"

    builder = WacomBuilder.create(usbid=USBID, match_name=NAME)
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "NameOnly"

    builder = WacomBuilder.create(usbid=USBID, uniq=UNIQ, match_name=NAME)
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "Both"


def test_prefer_uniq_over_name(custom_datadir):
    USBID = (0x1234, 0x5678)
    UNIQ = "uniqval"
    NAME = "nameval"

    # A device match with uniq but no name
    matches = ["usb|1234|5678||uniqval"]
    TabletFile(name="UniqOnly", matches=matches).write_to(
        custom_datadir / "uniq.tablet"
    )

    # A device match with a name but no uniq
    matches = ["usb|1234|5678|nameval"]
    TabletFile(name="NameOnly", matches=matches).write_to(
        custom_datadir / "name.tablet"
    )

    db = WacomDatabase(path=custom_datadir)

    # name and uniq set in our match but we don't have a device with both.
    # Prefer the uniq match over the name match
    builder = WacomBuilder.create(usbid=USBID, uniq=UNIQ, match_name=NAME)
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "UniqOnly"

    # If we have a uniq in our match but none of the DeviceMatches
    # have that, fall back to name only
    builder = WacomBuilder.create(usbid=USBID, uniq="whatever", match_name=NAME)
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "NameOnly"

    # If we have a name in our match but none of the DeviceMatches
    # have that, fall back to uniq only
    builder = WacomBuilder.create(usbid=USBID, uniq=UNIQ, match_name="whatever")
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "UniqOnly"


def test_dont_ignore_exact_matches(custom_datadir):
    USBID = (0x1234, 0x5678)
    UNIQ = "uniqval"
    NAME = "nameval"

    # A device match with both
    matches = ["usb|1234|5678|nameval|uniqval"]
    TabletFile(name="Both", matches=matches).write_to(custom_datadir / "both.tablet")

    db = WacomDatabase(path=custom_datadir)

    builder = WacomBuilder.create(usbid=USBID, uniq=UNIQ, match_name=NAME)
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "Both"

    # Our DeviceMatch has both uniq and name set, so only match
    # when *both* match
    builder = WacomBuilder.create(usbid=USBID, uniq=UNIQ, match_name="whatever")
    device = db.new_from_builder(builder)
    assert device is None

    builder = WacomBuilder.create(usbid=USBID, uniq="whatever", match_name=NAME)
    device = db.new_from_builder(builder)
    assert device is None


# Emulates the behavior of new_from_path for an unknown device but without
# uinput devices
@pytest.mark.parametrize(
    "fallback", (WacomDatabase.Fallback.NONE, WacomDatabase.Fallback.GENERIC)
)
@pytest.mark.parametrize("bustype", (WacomBustype.USB, WacomBustype.BLUETOOTH))
def test_new_unknown_device_with_fallback(custom_datadir, fallback, bustype):
    USBID = (0x1234, 0x5678)
    NAME = "nameval"
    db = WacomDatabase(path=custom_datadir)
    builder = WacomBuilder.create(
        usbid=USBID, bus=bustype, match_name=NAME, device_name=NAME
    )

    device = db.new_from_builder(builder, fallback=fallback)
    if fallback:
        assert device is not None
        match = device.match
        assert match.decode("utf-8") == "generic"
        # Generic device always has 0, 0, 0 triple for bus/vid/pid
        assert device.bustype == WacomBustype.UNKNOWN
        assert device.vendor_id == 0
        assert device.product_id == 0
        assert device.name == NAME
    else:
        assert device is None


def create_uinput(name, vid, pid, bustype=0x3):
    libevdev = pytest.importorskip("libevdev")
    dev = libevdev.Device()
    dev.name = name
    dev.id = {"bustype": bustype, "vendor": vid, "product": pid}
    dev.enable(
        libevdev.EV_ABS.ABS_X,
        libevdev.InputAbsInfo(minimum=0, maximum=10000, resolution=200),
    )
    dev.enable(
        libevdev.EV_ABS.ABS_Y,
        libevdev.InputAbsInfo(minimum=0, maximum=10000, resolution=200),
    )
    dev.enable(libevdev.EV_KEY.BTN_STYLUS)
    dev.enable(libevdev.EV_KEY.BTN_TOOL_PEN)
    try:
        return dev.create_uinput_device()
    except OSError as e:
        pytest.skip(f"Failed to create uinput device: {e}")


@pytest.mark.parametrize(
    "fallback", (WacomDatabase.Fallback.NONE, WacomDatabase.Fallback.GENERIC)
)
def test_new_from_path_known_device(db, fallback):
    name = "Wacom Intuos4 WL"
    vid = 0x056A
    pid = 0x00BC
    uinput = create_uinput(name, vid, pid)

    dev = db.new_from_path(
        uinput.devnode, fallback=fallback
    )  # fallback has no effect here
    assert dev is not None
    assert dev.name == name
    assert dev.vendor_id == vid
    assert dev.product_id == pid


@pytest.mark.parametrize("bustype", WacomBustype)
@pytest.mark.parametrize(
    "fallback", (WacomDatabase.Fallback.NONE, WacomDatabase.Fallback.GENERIC)
)
def test_new_from_path_unknown_device(db, fallback, bustype):
    bus = {
        WacomBustype.UNKNOWN: 0,
        WacomBustype.USB: 0x3,
        WacomBustype.BLUETOOTH: 0x5,
        WacomBustype.I2C: 0x18,
    }[bustype]

    name = "Unknown device"
    vid = 0x1234
    pid = 0xABAC
    uinput = create_uinput(name, vid, pid, bustype=bus)

    dev = db.new_from_path(
        uinput.devnode, fallback=fallback
    )  # fallback has no effect here
    if fallback == WacomDatabase.Fallback.NONE:
        assert dev is None
    else:
        assert dev is not None
        assert dev.name == name
        assert dev.vendor_id == 0
        assert dev.product_id == 0
        assert dev.bustype == 0  # fallback device is always bustype 0


@pytest.mark.parametrize(
    "feature",
    ("Ring", "Strip", "Dial"),
)
@pytest.mark.parametrize("count", (1, 2))
def test_button_modeswitch(custom_datadir, feature, count):
    USBID = (0x1234, 0x5678)

    extra = {
        "Buttons": {
            "Left": "A;B;C;",
            "Right": "D;E;F;",
            feature: "A",
        },
        "Features": {
            f"{feature}s": 4,
        },
    }
    if count > 1:
        extra["Buttons"][f"{feature}2"] = "D"

    TabletFile(
        name="some tablet",
        matches=[f"usb|{USBID[0]:04x}|{USBID[1]:04x}"],
        extra=extra,
    ).write_to(custom_datadir / "led.tablet")

    db = WacomDatabase(path=custom_datadir)
    builder = WacomBuilder.create(usbid=USBID)
    device = db.new_from_builder(builder)
    assert device is not None

    expected_flag = {
        "Ring": WacomDevice.ButtonFlags.RING_MODESWITCH,
        "Strip": WacomDevice.ButtonFlags.TOUCHSTRIP_MODESWITCH,
        "Dial": WacomDevice.ButtonFlags.DIAL_MODESWITCH,
    }[feature]

    flags = device.button_flags("A")
    assert expected_flag in flags

    for b in "BCDEF":
        flags = device.button_flags(b)
        assert expected_flag not in flags

    expected_flag = {
        "Ring": WacomDevice.ButtonFlags.RING2_MODESWITCH,
        "Strip": WacomDevice.ButtonFlags.TOUCHSTRIP2_MODESWITCH,
        "Dial": WacomDevice.ButtonFlags.DIAL2_MODESWITCH,
    }[feature]

    flags = device.button_flags("D")
    if count > 1:
        assert expected_flag in flags
    else:
        assert expected_flag not in flags

    for b in "ABCEF":
        flags = device.button_flags(b)
        assert expected_flag not in flags


@pytest.mark.parametrize(
    "feature",
    ("Ring", "Strip", "Dial"),
)
@pytest.mark.parametrize("count", (1, 2))
def test_status_leds(custom_datadir, feature, count):
    USBID = (0x1234, 0x5678)

    extra = {
        "Buttons": {
            "Left": "A;B;C;",
            "Right": "D;E;F;",
            feature: "A",
        },
        "Features": {
            "StatusLEDs": f"{feature};{feature}2" if count > 1 else f"{feature}",
            f"{feature}s": 4,
        },
    }
    if count > 1:
        extra["Buttons"][f"{feature}2"] = "D"

    TabletFile(
        name="some tablet",
        matches=[f"usb|{USBID[0]:04x}|{USBID[1]:04x}"],
        extra=extra,
    ).write_to(custom_datadir / "led.tablet")

    db = WacomDatabase(path=custom_datadir)
    builder = WacomBuilder.create(usbid=USBID)
    device = db.new_from_builder(builder)
    assert device is not None

    expected = [
        {
            "Ring": WacomStatusLed.RING,
            "Strip": WacomStatusLed.TOUCHSTRIP,
            "Dial": WacomStatusLed.DIAL,
        }[feature]
    ]

    if count > 1:
        expected.append(
            {
                "Ring": WacomStatusLed.RING2,
                "Strip": WacomStatusLed.TOUCHSTRIP2,
                "Dial": WacomStatusLed.DIAL2,
            }[feature]
        )

    leds = device.status_leds
    assert sorted(leds) == sorted(expected)

    led_group = device.button_led_group("A")
    assert led_group == 0

    led_group = device.button_led_group("D")
    if count > 1:
        assert led_group == 1
    else:
        assert led_group == -1

    for b in "BCEF":
        led_group = device.button_led_group(b)
        assert led_group == -1


def test_nonwacom_stylus_ids(tmp_path):
    styli = StylusFile.default()
    s1 = StylusEntry(
        id="0x1234:0xabcd",
        name="ABC Pen",
        group="notwacom",
        paired_stylus_ids=["0x1234:0x9876"],
    )
    s2 = StylusEntry(
        id="0x1234:0x9876",
        name="9876 Pen",
        group="notwacom",
        paired_stylus_ids=["0x1234:0xabcd"],
        eraser_type="Invert",
    )
    styli.entries.append(s1)
    styli.entries.append(s2)
    styli.write_to_dir(tmp_path)

    # matches our nonwacom group
    TabletFile(
        name="ABC Group Tablet",
        matches=["usb|9999|abcd"],
        styli=["@notwacom"],
    ).write_to(tmp_path / "group.tablet")

    # matches one nonwacom styli and the default generic ones
    TabletFile(
        name="ABC Tablet",
        matches=["usb|8888|abcd"],
        styli=[s2.id, "@generic-with-eraser"],
    ).write_to(tmp_path / "abc.tablet")

    db = WacomDatabase(path=tmp_path)

    builder = WacomBuilder.create(usbid=(0x9999, 0xABCD))
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "ABC Group Tablet"
    styli = device.get_styli()
    assert len(styli) == 2
    assert styli[0].vendor_id == 0x1234
    assert styli[1].vendor_id == 0x1234
    # Order of styli is undefined
    assert styli[0].tool_id == 0xABCD or styli[1].tool_id == 0xABCD
    assert styli[0].tool_id == 0x9876 or styli[1].tool_id == 0x9876
    assert sum(s.is_eraser for s in styli) == 1
    for s in filter(lambda s: s.is_eraser, styli):
        assert s.eraser_type == WacomEraserType.INVERT

    assert sum(s.is_eraser is True for s in styli) == 1

    paired0 = styli[0].get_paired_styli()
    paired1 = styli[1].get_paired_styli()
    assert len(paired0) == 1
    assert len(paired1) == 1
    assert paired0[0].vendor_id == styli[1].vendor_id
    assert paired0[0].tool_id != styli[1].vendor_id
    assert paired1[0].vendor_id == styli[0].vendor_id
    assert paired1[0].tool_id != styli[0].vendor_id

    builder = WacomBuilder.create(usbid=(0x8888, 0xABCD))
    device = db.new_from_builder(builder)
    assert device is not None
    assert device.name == "ABC Tablet"
    styli = device.get_styli()
    assert len(styli) == 3  # 1 non-wacom, 2 generic ones
    # Order of styli is undefined
    assert sum(s.vendor_id == 0x1234 and s.tool_id == 0x9876 for s in styli) == 1
    assert sum(s.vendor_id == 0 and s.tool_id == 0xAFFFE for s in styli) == 1
    assert sum(s.vendor_id == 0 and s.tool_id == 0xAFFFF for s in styli) == 1


def test_load_xdg_config_home(monkeypatch, tmp_path, custom_datadir):
    monkeypatch.setenv("XDG_CONFIG_HOME", str(tmp_path.absolute()))

    xdg = tmp_path / "libwacom"
    xdg.mkdir()

    usbid = (0x1234, 0x5678)
    matches = [f"usb|{usbid[0]:04x}|{usbid[1]:04x}"]
    TabletFile(name="XDGTablet", matches=matches).write_to(xdg / "uniq.tablet")

    StylusFile.default().write_to_dir(xdg)

    # This should load from system *and* XDG. system files could
    # interfere with our test or may not exist but unfortunately we can't
    # chroot for the test. it should be good enough this way anyway.
    db = WacomDatabase()
    builder = WacomBuilder.create(usbid=usbid)
    device = db.new_from_builder(builder)
    assert device is not None and device.name == "XDGTablet"


@pytest.mark.parametrize(
    "override,value",
    (
        ("axes", "Tilt;"),
        ("buttons", 3),
        ("has_lens", True),
        ("has_wheel", True),
        ("stylus_type", WacomStylusType.AIRBRUSH),
        ("eraser_type", WacomEraserType.INVERT),
    ),
)
def test_alias_of(custom_datadir, override, value):
    usbid = (0x1234, 0x5678)
    matches = [f"usb|{usbid[0]:04x}|{usbid[1]:04x}"]
    TabletFile(name="XDGTablet", matches=matches, styli=["@happy-aliases"]).write_to(
        custom_datadir / "uniq.tablet"
    )

    stylusfile = StylusFile.default()
    stylusfile.entries.append(
        StylusEntry(
            id="0x1234:0xabcd",
            name="To be aliased",
            group="happy-aliases",
        )
    )

    alias = StylusEntry(
        id="0x1234:0xffff",
        name="AliasTester",
        alias_of="0x1234:0xabcd",
        group="happy-aliases",
    )
    if override == "stylus_type":
        setattr(alias, override, "Airbrush")
    elif override == "eraser_type":
        setattr(alias, override, "Invert")
    else:
        setattr(alias, override, value)

    stylusfile.entries.append(alias)
    stylusfile.write_to_dir(custom_datadir)

    db = WacomDatabase(path=custom_datadir)
    builder = WacomBuilder.create(usbid=usbid)
    device = db.new_from_builder(builder)
    assert device is not None and device.name == "XDGTablet"

    styli = device.get_styli()
    assert len(styli) == 2

    original = styli[0]
    aliasing = styli[1]

    assert original.vendor_id == 0x1234
    assert original.tool_id == 0xABCD
    assert original.num_buttons == 2
    assert original.axes == [
        WacomAxisType.TILT,
        WacomAxisType.DISTANCE,
        WacomAxisType.PRESSURE,
    ]
    assert not original.has_lens
    assert not original.has_wheel
    assert original.eraser_type == WacomEraserType.NONE

    assert aliasing.vendor_id == 0x1234
    assert aliasing.tool_id == 0xFFFF
    if override == "buttons":
        assert aliasing.num_buttons == value
    else:
        assert aliasing.num_buttons == 2

    if override == "axes":
        assert aliasing.axes == [WacomAxisType.TILT]
    else:
        assert aliasing.axes == [
            WacomAxisType.TILT,
            WacomAxisType.DISTANCE,
            WacomAxisType.PRESSURE,
        ]

    if override == "stylus_type":
        assert aliasing.stylus_type == value
    else:
        assert aliasing.stylus_type == WacomStylusType.GENERAL

    if override == "eraser_type":
        assert aliasing.eraser_type == value
    else:
        assert aliasing.eraser_type == WacomEraserType.NONE

    if override == "has_lens":
        assert aliasing.has_lens is value
    else:
        assert aliasing.has_lens is False

    if override == "has_wheel":
        assert aliasing.has_wheel is value
    else:
        assert aliasing.has_wheel is False


@pytest.mark.parametrize("alias", ("0x1234:0xaaaa", "0xabcd", "banana"))
def test_alias_of_invalid(custom_datadir, alias):
    usbid = (0x1234, 0x5678)
    matches = [f"usb|{usbid[0]:04x}|{usbid[1]:04x}"]
    TabletFile(name="XDGTablet", matches=matches, styli=["@happy-aliases"]).write_to(
        custom_datadir / "uniq.tablet"
    )

    stylusfile = StylusFile.default()
    stylusfile.entries = []
    stylusfile.entries.append(
        StylusEntry(
            id="0x1234:0xabcd",
            name="To be aliased",
            group="happy-aliases",
        )
    )

    alias = StylusEntry(
        id="0x1234:0xffff",
        name="AliasTester",
        alias_of=alias,
        group="happy-aliases",
    )
    stylusfile.entries.append(alias)
    stylusfile.write_to_dir(custom_datadir)

    db = WacomDatabase(path=custom_datadir)
    builder = WacomBuilder.create(usbid=usbid)
    device = db.new_from_builder(builder)
    assert device is not None and device.name == "XDGTablet"

    styli = device.get_styli()
    assert len(styli) == 1

    original = styli[0]
    assert original.vendor_id == 0x1234
    assert original.tool_id == 0xABCD
    assert original.num_buttons == 2
    assert original.axes == [
        WacomAxisType.TILT,
        WacomAxisType.DISTANCE,
        WacomAxisType.PRESSURE,
    ]
    assert not original.has_lens
    assert not original.has_wheel
    assert original.eraser_type == WacomEraserType.NONE