"""Helper utils for integration tests."""

from random import random
import re

from tests.integration import config
from tests.integration.consts import api


def validate_response_status(response, expect_status=api.STATUS_OK):
    """Validate response for expected status and return body as json."""
    assert response.status_code == expect_status, \
        'Expected status_code to be {}, was {}, body: {}'.format(
            expect_status, response.status_code, response.json())
    return response.json()


def assert_has_keys(source_object, keys_list):
    """Validate that key exists in object.

    Args:
        source_object (dict): object that must contain target keys
        keys_list (iterable): list of keys to compare
    """
    for key in keys_list:
        assert key in source_object, \
            'Expected {} key to exist in {}'.format(key, source_object)


def pattern_matched(pattern, string):
    """Validate regexp pattern matching."""
    return re.match(pattern, string)


def omit_keys(source_object, keys):
    """Return source_object without keys."""
    return {k: value for k, value in source_object.items() if k not in keys}


def asset_url(filename):
    """Return full output url for filename."""
    return 'https://{}/{}'.format(config.OUTPUT_PODCAST_CDN, filename)


def random_slug():
    """Generate a random slug for a new podcast."""
    return 'api-tests-slug-{}'.format(str(int(random() * 10000000000000 + 1)))