#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import os
import tempfile

from scilpy import SCILPY_HOME
from scilpy.io.fetcher import fetch_data, get_testing_files_dict

# If they already exist, this only takes 5 seconds (check md5sum)
fetch_data(get_testing_files_dict(), keys=['stats.zip'])
tmp_dir = tempfile.TemporaryDirectory()


def test_help_option(script_runner):
    ret = script_runner.run(['scil_connectivity_compute_pca', '--help'])
    assert ret.success


def test_execution_pca(script_runner, monkeypatch):
    monkeypatch.chdir(os.path.expanduser(tmp_dir.name))
    input_folder = os.path.join(SCILPY_HOME, 'stats/pca')
    output_folder = os.path.join(SCILPY_HOME, 'stats/pca_out')
    ids = os.path.join(SCILPY_HOME, 'stats/pca', 'list_id.txt')
    ret = script_runner.run([
        'scil_connectivity_compute_pca', input_folder, output_folder,
        '--metrics', 'ad', 'fa', 'md', 'rd', 'nufo', 'afd_total', 'afd_fixel',
        '--list_ids', ids, '-f'])
    assert ret.success
