Synnefo

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from copy import deepcopy

from synnefo.lib import join_urls

from synnefo.util.keypath import get_path, set_path

from urlparse import urlparse

def fill_endpoints(services, base_url):

    for name, service in services.iteritems():

        prefix = get_path(service, ['prefix'])

        endpoints = get_path(service, ['endpoints'])

        for endpoint in endpoints:

            version = get_path(endpoint, ['versionId'])

            publicURL = get_path(endpoint, ['publicURL'])

            if publicURL is not None:

                continue

            publicURL = join_urls(base_url, prefix, version).rstrip('/')

            set_path(endpoint, ['publicURL'], publicURL)

def filter_public(services):

    public_services = {}

    for name, service in services.iteritems():

        if service.get('public', False):

            public_services[name] = deepcopy(service)

    return public_services

def get_public_endpoint(services, service_type, version=None):

    found_endpoints = {}

    for service_name, service in services.iteritems():

        if service_type != service['type']:

            continue

        for endpoint in service['endpoints']:

            endpoint_version = endpoint['versionId']

            if version is not None:

                if version != endpoint_version:

                    continue

            found_endpoints[endpoint_version] = endpoint

    if not found_endpoints:

        m = "No endpoint found for service type '{0}'".format(service_type)

        if version is not None:

            m += " and version '{0}'".format(version)

        raise ValueError(m)

    selected = sorted(found_endpoints.keys())[-1]

    return found_endpoints[selected]['publicURL']

def get_service_path(services, service_type, version=None):

    service_url = get_public_endpoint(services, service_type, version=version)

    return urlparse(service_url).path.rstrip('/')