"""
epsffit tests.
Copyright (c) Reuben Thomas 2023.
Released under the GPL version 3, or (at your option) any later version.
"""

from pathlib import Path
from itertools import combinations
from typing import Callable, List, Iterable

from pytest import CaptureFixture

from testutils import file_test, make_tests, Case
from psutils.command.epsffit import epsffit

OPTIONS = ["aspect", "center", "maximize", "rotate"]

OPTION_SETS = [
    subset for n in range(len(OPTIONS) + 1) for subset in combinations(OPTIONS, n)
]


def argify(options: Iterable[str]) -> Iterable[str]:
    return [f"-{opt[0]}" for opt in options]


option_cases = []
for opts in OPTION_SETS:
    option_cases.append(
        Case(
            "-".join(opts) or "no-options",
            ["100pt", "100pt", "200pt", "300pt", *argify(opts)],
            "tiger.eps",
        )
    )

pytestmark = make_tests(
    epsffit,
    Path(__file__).parent.resolve() / "test-files",
    *option_cases,
    Case(
        "showpage",
        ["-s", "100pt", "100pt", "200pt", "300pt"],
        "tiger.eps",
    ),
    Case(
        "h-texlive",
        ["-c", "0", "0", "600", "368"],
        "plot.eps",
    ),
    Case(
        "m-texlive",
        ["-m", "0", "0", "368", "500"],
        "plot.eps",
    ),
    Case(
        "v-texlive",
        ["-c", "0", "0", "500", "400"],
        "plot.eps",
    ),
)


# pylint: disable=similarities
def test_epsffit(
    function: Callable[[List[str]], None],
    case: Case,
    fixture_dir: Path,
    capsys: CaptureFixture[str],
    datafiles: Path,
    regenerate_input: bool,
    regenerate_expected: bool,
) -> None:
    file_test(
        function,
        case,
        fixture_dir,
        capsys,
        datafiles,
        ".eps",
        regenerate_input,
        regenerate_expected,
    )