# Copyright 2017 The Openstack-Helm Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# This function returns hostnames from endpoint definitions for use cases
# where the uri style return is not appropriate, and only the short hostname or
# kubernetes servicename is used or relevant in the template:
# { tuple "memcache" "internal" . | include "helm-toolkit.endpoints.hostname_endpoint_lookup" }
# returns: the short internal hostname, which will also match the service name


{{- define "helm-toolkit.endpoints.hostname_endpoint_lookup" -}}
{{- $type := index . 0 -}}
{{- $endpoint := index . 1 -}}
{{- $context := index . 2 -}}
{{- $endpointMap := index $context.Values.endpoints $type }}
{{- with $endpointMap -}}
{{- $endpointScheme := .scheme }}
{{- $endpointHost := index .hosts $endpoint | default .hosts.default}}
{{- printf "%s" $endpointHost -}}
{{- end -}}
{{- end -}}