# -*- coding: utf-8 -*-
# TODO: move tests one out of src to project root.
# TODO: travis has numpy on their workers. Maybe add tests?

"""Helpers for testing."""

import ctypes
import os
import sys
import sysconfig

import pytest
import clr
from System.Runtime.InteropServices import RuntimeInformation

# Add path for `Python.Test`
cwd = os.path.dirname(__file__)
if RuntimeInformation.FrameworkDescription.startswith(".NET Core"):
    fixtures_path = os.path.join(cwd, "fixtures/netstandard2.0")
else:
    fixtures_path = os.path.join(cwd, "fixtures")
sys.path.append(fixtures_path)

# Add References for tests
clr.AddReference("Python.Test")
clr.AddReference("System.Collections")
clr.AddReference("System.Data")


def pytest_report_header(config):
    """Generate extra report headers"""
    # FIXME: https://github.com/pytest-dev/pytest/issues/2257
    is_64bits = sys.maxsize > 2**32
    arch = "x64" if is_64bits else "x86"
    ucs = ctypes.sizeof(ctypes.c_wchar)
    libdir = sysconfig.get_config_var("LIBDIR")
    shared = bool(sysconfig.get_config_var("Py_ENABLE_SHARED"))

    header = ("Arch: {arch}, UCS: {ucs}, LIBDIR: {libdir}, "
              "Py_ENABLE_SHARED: {shared}".format(**locals()))
    return header


@pytest.fixture()
def filepath():
    """Returns full filepath for file in `fixtures` directory."""

    def make_filepath(filename):
        # http://stackoverflow.com/questions/18011902/parameter-to-a-fixture
        return os.path.join(fixtures_path, filename)

    return make_filepath