# -*- coding: utf8 -*-
# ============LICENSE_START=======================================================
# org.onap.vvp/validation-scripts
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import os

from tests.helpers import validates
from tests.structures import Heat

MSG = (
    "OAM management address can be declared as output in at most 1 template. "
    + "Output parameter {} found in multiple templates: {}"
)


def find_output_param(param, templates):
    templates = (t for t in templates if param in Heat(t).outputs)
    return [os.path.basename(t) for t in templates]


@validates("R-18683")
def test_oam_address_v4_zero_or_one(heat_templates):
    param = "oam_management_v4_address"
    templates = find_output_param(param, heat_templates)
    assert len(templates) <= 1, MSG.format(param, ", ".join(templates))


@validates("R-94669")
def test_oam_address_v6_zero_or_one(heat_templates):
    param = "oam_management_v6_address"
    templates = find_output_param(param, heat_templates)
    assert len(templates) <= 1, MSG.format(param, ", ".join(templates))