import os
import zipfile

from sigal import init_plugins
from sigal.gallery import Gallery
from sigal.settings import read_settings

CURRENT_DIR = os.path.dirname(__file__)
SAMPLE_DIR = os.path.join(CURRENT_DIR, 'sample')
SAMPLE_SOURCE = os.path.join(SAMPLE_DIR, 'pictures')


def make_gallery(source_dir='dir1', **kwargs):
    default_conf = os.path.join(SAMPLE_DIR, 'sigal.conf.py')
    settings = read_settings(default_conf)
    settings['source'] = os.path.join(SAMPLE_SOURCE, source_dir)
    settings.update(kwargs)
    init_plugins(settings)
    return Gallery(settings, ncpu=1)


def test_zipped_correctly(tmpdir):
    outpath = str(tmpdir)
    gallery = make_gallery(destination=outpath, zip_gallery='archive.zip')
    gallery.build()

    zipf = os.path.join(outpath, 'test1', 'archive.zip')
    assert os.path.isfile(zipf)

    zip_file = zipfile.ZipFile(zipf, 'r')
    expected = (
        '11.jpg',
        'CMB_Timeline300_no_WMAP.jpg',
        'flickr_jerquiaga_2394751088_cc-by-nc.jpg',
        'example.gif',
    )

    for filename in zip_file.namelist():
        assert filename in expected

    zip_file.close()

    assert os.path.isfile(os.path.join(outpath, 'test2', 'archive.zip'))


def test_not_zipped(tmpdir):
    # test that the zip file is not created when the .nozip_gallery file
    # is present
    outpath = str(tmpdir)
    gallery = make_gallery(
        destination=outpath, zip_gallery='archive.zip', source_dir='dir2'
    )
    gallery.build()
    assert not os.path.isfile(os.path.join(outpath, 'archive.zip'))


def test_no_archive(tmpdir):
    outpath = str(tmpdir)
    gallery = make_gallery(destination=outpath, zip_gallery=False)
    gallery.build()

    assert not os.path.isfile(os.path.join(outpath, 'test1', 'archive.zip'))
    assert not os.path.isfile(os.path.join(outpath, 'test2', 'archive.zip'))


def test_correct_filename(tmpdir, caplog):
    caplog.set_level('ERROR')
    outpath = str(tmpdir)
    gallery = make_gallery(destination=outpath, zip_gallery=True)
    gallery.build()

    assert caplog.records[0].message == "'zip_gallery' should be set to a filename"
    assert not os.path.isfile(os.path.join(outpath, 'test1', 'archive.zip'))
    assert not os.path.isfile(os.path.join(outpath, 'test2', 'archive.zip'))