# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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"""vm-type syntax
"""

import re

import pytest

from .structures import Heat
from .helpers import validates
from .utils import vm_types

VERSION = "1.0.0"

RE_VM_TYPE = re.compile(r"[\w\d_]+$")
RE_VM_TYPE_NG = re.compile(r".*_int|_?int_.*$")


@validates("R-98407")
def test_vm_type_syntax(yaml_file):
    """
    A VNF's Heat Orchestration Template's ``{vm-type}``
    **MUST** contain only
    alphanumeric characters and/or underscores '_' and **MUST NOT**
    contain any of the following strings:
    ``_int`` or ``int_`` or ``_int_``.
    """
    v = Heat(filepath=yaml_file)
    if not v.resources:
        pytest.skip("No resources")
    t = set()
    t.update(*[vm_types.get_vm_types_for_resource(r) for r in v.resources.values()])
    bad = [x for x in t if not RE_VM_TYPE.match(x) or RE_VM_TYPE_NG.match(x)]
    assert not bad, "bad vm-types %s" % bad