# -*- coding: utf-8 -*-

# Configuration file for pytest

# License: MIT License

import pytest
from ot.backend import jax, tf
from ot.backend import get_backend_list
import functools

if jax:
    from jax.config import config
    config.update("jax_enable_x64", True)

if tf:
    from tensorflow.python.ops.numpy_ops import np_config
    np_config.enable_numpy_behavior()

backend_list = get_backend_list()


@pytest.fixture(params=backend_list)
def nx(request):
    backend = request.param

    yield backend


def skip_arg(arg, value, reason=None, getter=lambda x: x):
    if isinstance(arg, (tuple, list)):
        n = len(arg)
    else:
        arg = (arg, )
        n = 1
    if n != 1 and isinstance(value, (tuple, list)):
        pass
    else:
        value = (value, )
    if isinstance(getter, (tuple, list)):
        pass
    else:
        getter = [getter] * n

    if reason is None:
        reason = f"Param {arg} should be skipped for value {value}"

    def wrapper(function):

        @functools.wraps(function)
        def wrapped(*args, **kwargs):
            if all(
                arg[i] in kwargs.keys() and getter[i](kwargs[arg[i]]) == value[i]
                for i in range(n)
            ):
                pytest.skip(reason)
            return function(*args, **kwargs)

        return wrapped

    return wrapper


def pytest_configure(config):
    pytest.skip_arg = skip_arg
    pytest.skip_backend = functools.partial(skip_arg, "nx", getter=str)