# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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from collections import defaultdict

import pytest
from tests import cached_yaml as yaml

from .helpers import validates


@validates("R-36772", "R-44001")
def test_heat_template_parameters_contain_required_fields(yaml_file):
    """
    Check that all parameters in the environment
    file have the required fields
    """
    required_keys = {"type", "description"}

    with open(yaml_file) as fh:
        yml = yaml.load(fh)

    # skip if parameters are not defined
    if "parameters" not in yml:
        pytest.skip("No parameters specified in the heat template")

    invalid_params = defaultdict(list)
    for param, param_attrs in yml["parameters"].items():
        if not isinstance(param_attrs, dict):
            continue
        for key in required_keys:
            if key not in param_attrs:
                invalid_params[param].append(key)

    msg = [
        "Parameter {} is missing required attribute(s): {}".format(k, ", ".join(v))
        for k, v in invalid_params.items()
    ]
    msg = ". ".join(msg)
    assert not invalid_params, msg