# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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"""base template names
"""

from os import listdir
from os import path
import re

from .helpers import check_basename_ending
from .helpers import validates

VERSION = '1.2.0'

# is 'base', starts with 'base_', contains '_base_', ends with '_base'
RE_BASE = re.compile(r'(^base$)|(^base_)|(_base_)|(_base$)')


@validates('R-37028', 'R-87485', 'R-81339', 'R-87247', 'R-76057')
def test_base_template_names(template_dir):
    '''
    Check all base templates have a filename that includes "_base_".
    '''
    base_template_count = 0
    filenames = [f for f in listdir(template_dir)
                 if path.isfile(path.join(template_dir, f)) and
                 path.splitext(f)[-1] in ['.yaml', '.yml']]
    for filename in filenames:
        filename = path.splitext(filename)[0]

        # volume templates are tied to their parent naming wise
        if check_basename_ending('volume', filename):
            continue

        if RE_BASE.search(filename.lower()):
            base_template_count += 1
    assert base_template_count == 1, (
        'must be 1 "*_base_*" in %s not %d' % (
            filenames,
            base_template_count))