{{/* vim: set filetype=mustache: */}}
{{/*
Expand the name of the chart.
*/}}
{{- define "rabbitmq.name" -}}
{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
{{- end -}}

{{/*
Create a default fully qualified app name.
We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
If release name contains chart name it will be used as a full name.
*/}}
{{- define "rabbitmq.fullname" -}}
{{- if .Values.fullnameOverride -}}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- $name := default .Chart.Name .Values.nameOverride -}}
{{- if contains $name .Release.Name -}}
{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{- end -}}
{{- end -}}

{{/*
Create chart name and version as used by the chart label.
*/}}
{{- define "rabbitmq.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
{{- end -}}

{{/*
Return the proper RabbitMQ plugin list
*/}}
{{- define "rabbitmq.plugins" -}}
{{- $plugins := .Values.rabbitmq.plugins | replace " " ", " -}}
{{- if .Values.rabbitmq.extraPlugins -}}
{{- $extraPlugins := .Values.rabbitmq.extraPlugins | replace " " ", " -}}
{{- printf "[%s, %s]." $plugins $extraPlugins | indent 4 -}}
{{- else -}}
{{- printf "[%s]." $plugins | indent 4 -}}
{{- end -}}
{{- end -}}

{{/*
Return the proper RabbitMQ image name
*/}}
{{- define "rabbitmq.image" -}}
{{- $registryName := .Values.image.registry -}}
{{- $repositoryName := .Values.image.repository -}}
{{- $tag := .Values.image.tag | toString -}}
{{/*
Helm 2.11 supports the assignment of a value to a variable defined in a different scope,
but Helm 2.9 and 2.10 doesn't support it, so we need to implement this if-else logic.
Also, we can't use a single if because lazy evaluation is not an option
*/}}
{{- if .Values.global }}
    {{- if .Values.global.imageRegistry }}
        {{- printf "%s/%s:%s" .Values.global.imageRegistry $repositoryName $tag -}}
    {{- else -}}
        {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
    {{- end -}}
{{- else -}}
    {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
{{- end -}}
{{- end -}}

{{/*
Return the proper metrics image name
*/}}
{{- define "rabbitmq.metrics.image" -}}
{{- $registryName := .Values.metrics.image.registry -}}
{{- $repositoryName := .Values.metrics.image.repository -}}
{{- $tag := .Values.metrics.image.tag | toString -}}
{{/*
Helm 2.11 supports the assignment of a value to a variable defined in a different scope,
but Helm 2.9 and 2.10 doesn't support it, so we need to implement this if-else logic.
Also, we can't use a single if because lazy evaluation is not an option
*/}}
{{- if .Values.global }}
    {{- if .Values.global.imageRegistry }}
        {{- printf "%s/%s:%s" .Values.global.imageRegistry $repositoryName $tag -}}
    {{- else -}}
        {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
    {{- end -}}
{{- else -}}
    {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
{{- end -}}
{{- end -}}

{{/*
Get the password secret.
*/}}
{{- define "rabbitmq.secretPasswordName" -}}
    {{- if .Values.rabbitmq.existingPasswordSecret -}}
        {{- printf "%s" .Values.rabbitmq.existingPasswordSecret -}}
    {{- else -}}
        {{- printf "%s" (include "rabbitmq.fullname" .) -}}
    {{- end -}}
{{- end -}}

{{/*
Get the erlang secret.
*/}}
{{- define "rabbitmq.secretErlangName" -}}
    {{- if .Values.rabbitmq.existingErlangSecret -}}
        {{- printf "%s" .Values.rabbitmq.existingErlangSecret -}}
    {{- else -}}
        {{- printf "%s" (include "rabbitmq.fullname" .) -}}
    {{- end -}}
{{- end -}}

{{/*
Return the proper Docker Image Registry Secret Names
*/}}
{{- define "rabbitmq.imagePullSecrets" -}}
{{/*
Helm 2.11 supports the assignment of a value to a variable defined in a different scope,
but Helm 2.9 and 2.10 does not support it, so we need to implement this if-else logic.
Also, we can not use a single if because lazy evaluation is not an option
*/}}
{{- if .Values.global }}
{{- if .Values.global.imagePullSecrets }}
imagePullSecrets:
{{- range .Values.global.imagePullSecrets }}
  - name: {{ . }}
{{- end }}
{{- else if or .Values.image.pullSecrets .Values.metrics.image.pullSecrets .Values.volumePermissions.image.pullSecrets }}
imagePullSecrets:
{{- range .Values.image.pullSecrets }}
  - name: {{ . }}
{{- end }}
{{- range .Values.metrics.image.pullSecrets }}
  - name: {{ . }}
{{- end }}
{{- range .Values.volumePermissions.image.pullSecrets }}
  - name: {{ . }}
{{- end }}
{{- end -}}
{{- else if or .Values.image.pullSecrets .Values.metrics.image.pullSecrets .Values.volumePermissions.image.pullSecrets }}
imagePullSecrets:
{{- range .Values.image.pullSecrets }}
  - name: {{ . }}
{{- end }}
{{- range .Values.metrics.image.pullSecrets }}
  - name: {{ . }}
{{- end }}
{{- range .Values.volumePermissions.image.pullSecrets }}
  - name: {{ . }}
{{- end }}
{{- end -}}
{{- end -}}

{{/*
Return the proper image name (for the init container volume-permissions image)
*/}}
{{- define "rabbitmq.volumePermissions.image" -}}
{{- $registryName := .Values.volumePermissions.image.registry -}}
{{- $repositoryName := .Values.volumePermissions.image.repository -}}
{{- $tag := .Values.volumePermissions.image.tag | toString -}}
{{/*
Helm 2.11 supports the assignment of a value to a variable defined in a different scope,
but Helm 2.9 and 2.10 doesn't support it, so we need to implement this if-else logic.
Also, we can't use a single if because lazy evaluation is not an option
*/}}
{{- if .Values.global }}
    {{- if .Values.global.imageRegistry }}
        {{- printf "%s/%s:%s" .Values.global.imageRegistry $repositoryName $tag -}}
    {{- else -}}
        {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
    {{- end -}}
{{- else -}}
    {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
{{- end -}}
{{- end -}}

{{/*
Return  the proper Storage Class
*/}}
{{- define "rabbitmq.storageClass" -}}
{{/*
Helm 2.11 supports the assignment of a value to a variable defined in a different scope,
but Helm 2.9 and 2.10 does not support it, so we need to implement this if-else logic.
*/}}
{{- if .Values.global -}}
    {{- if .Values.global.storageClass -}}
        {{- if (eq "-" .Values.global.storageClass) -}}
            {{- printf "storageClassName: \"\"" -}}
        {{- else }}
            {{- printf "storageClassName: %s" .Values.global.storageClass -}}
        {{- end -}}
    {{- else -}}
        {{- if .Values.persistence.storageClass -}}
              {{- if (eq "-" .Values.persistence.storageClass) -}}
                  {{- printf "storageClassName: \"\"" -}}
              {{- else }}
                  {{- printf "storageClassName: %s" .Values.persistence.storageClass -}}
              {{- end -}}
        {{- end -}}
    {{- end -}}
{{- else -}}
    {{- if .Values.persistence.storageClass -}}
        {{- if (eq "-" .Values.persistence.storageClass) -}}
            {{- printf "storageClassName: \"\"" -}}
        {{- else }}
            {{- printf "storageClassName: %s" .Values.persistence.storageClass -}}
        {{- end -}}
    {{- end -}}
{{- end -}}
{{- end -}}

{{/*
Compile all warnings into a single message, and call fail.
*/}}
{{- define "rabbitmq.validateValues" -}}
{{- $messages := list -}}
{{- $messages := append $messages (include "rabbitmq.validateValues.ldap" .) -}}
{{- $messages := without $messages "" -}}
{{- $message := join "\n" $messages -}}

{{- if $message -}}
{{-   printf "\nVALUES VALIDATION:\n%s" $message | fail -}}
{{- end -}}
{{- end -}}

{{/*
Validate values of rabbitmq - LDAP support
*/}}
{{- define "rabbitmq.validateValues.ldap" -}}
{{- if .Values.ldap.enabled }}
{{- if not (and .Values.ldap.server .Values.ldap.port .Values.ldap.user_dn_pattern) }}
rabbitmq: LDAP
    Invalid LDAP configuration. When enabling LDAP support, the parameters "ldap.server",
    "ldap.port", and "ldap. user_dn_pattern" are mandatory. Please provide them:

    $ helm install {{ .Release.Name }} stable/rabbitmq \
      --set ldap.enabled=true \
      --set ldap.server="lmy-ldap-server" \
      --set ldap.port="389" \
      --set user_dn_pattern="cn=${username},dc=example,dc=org"
{{- end -}}
{{- end -}}
{{- end -}}

{{/*
Renders a value that contains template.
Usage:
{{ include "rabbitmq.tplValue" (dict "value" .Values.path.to.the.Value "context" $) }}
*/}}
{{- define "rabbitmq.tplValue" -}}
    {{- if typeIs "string" .value }}
        {{- tpl .value .context }}
    {{- else }}
        {{- tpl (.value | toYaml) .context }}
    {{- end }}
{{- end -}}
