# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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"""Test heat template structure
"""

from tests import cached_yaml as yaml
from .helpers import validates

VERSION = '1.2.0'

# pylint: disable=invalid-name


@validates('R-27078')
def test_heat_template_structure_contains_heat_template_version(yaml_file):
    '''
    Check that all heat templates have the required sections
    '''
    required_key_values = ["heat_template_version"]

    with open(yaml_file) as fh:
        yml = yaml.load(fh)
    assert all([k in yml for k in required_key_values]), (
        "{} doesn't contain the {} section, but it is required"
        .format(yaml_file, required_key_values[0]))


@validates('R-39402')
def test_heat_template_structure_contains_description(yaml_file):
    '''
    Check that all heat templates have the required sections
    '''
    required_key_values = ["description"]

    with open(yaml_file) as fh:
        yml = yaml.load(fh)
    assert all([k in yml for k in required_key_values]), (
        "{} doesn't contain the {} section, but it is required"
        .format(yaml_file, required_key_values[0]))


@validates('R-35414')
def test_heat_template_structure_contains_parameters(yaml_file):
    '''
    Check that all heat templates have the required sections
    '''
    required_key_values = ["parameters"]

    with open(yaml_file) as fh:
        yml = yaml.load(fh)
    assert all([k in yml for k in required_key_values]), (
        "{} doesn't contain the {} section, but it is required"
        .format(yaml_file, required_key_values[0]))


@validates('R-23664')
def test_heat_template_structure_contains_resources(heat_template):
    '''
    Check that all heat templates have the required sections
    '''
    required_key_values = ["resources"]

    with open(heat_template) as fh:
        yml = yaml.load(fh)
    assert all([k in yml for k in required_key_values]), (
        "{} doesn't contain the {} section, but it is required"
        .format(heat_template, required_key_values[0]))


@validates('R-11441')
def test_parameter_type(yaml_file):
    '''A VNF's Heat Orchestration Template's parameter type **MUST**
    be one of the following values:
    '''
    types = ['string',
             'number',
             'json',
             'comma_delimited_list',
             'boolean']
    with open(yaml_file) as fh:
        yml = yaml.load(fh)
    for key, param in yml.get('parameters', {}).items():
        assert isinstance(param, dict), '%s parameter %s is not dict' % (
            yaml_file,
            key)
        assert 'type' in param, '%s parameter %s has no "type"' % (
            yaml_file,
            key)
        typ = param['type']
        assert typ in types, '%s parameter %s has invalid type "%s"' % (
            yaml_file,
            key,
            typ)