{{/*
Return the appropriate apiVersion for statefulset.
*/}}
{{- define "mariadb.statefulset.apiVersion" -}}
{{- if semverCompare "<1.14-0" .Capabilities.KubeVersion.GitVersion -}}
{{- print "apps/v1beta1" -}}
{{- else -}}
{{- print "apps/v1" -}}
{{- end -}}
{{- end -}}

{{/* vim: set filetype=mustache: */}}
{{/*
Expand the name of the chart.
*/}}
{{- define "mariadb.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 "mariadb.fullname" -}}
{{- if .Values.fullnameOverride -}}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- $name := default .Chart.Name .Values.nameOverride -}}
{{- if contains $name .Release.Name -}}
{{- printf .Release.Name | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{- end -}}
{{- end -}}

{{- define "master.fullname" -}}
{{- if .Values.replication.enabled -}}
{{- printf "%s-%s" (include "mariadb.fullname" .) "master" | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- include "mariadb.fullname" . -}}
{{- end -}}
{{- end -}}

{{- define "slave.fullname" -}}
{{- printf "%s-%s" (include "mariadb.fullname" .) "slave" | trunc 63 | trimSuffix "-" -}}
{{- end -}}

{{- define "mariadb.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
{{- end -}}

{{/*
Create pod labels for mariadb
*/}}
{{- define "mariadb.podLabels" -}}
{{- if .Values.podLabels }}
{{ toYaml .Values.podLabels }}
{{- end -}}
{{- end -}}

{{/*
Return the proper MariaDB image name
*/}}
{{- define "mariadb.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 "mariadb.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 -}}

{{ template "mariadb.initdbScriptsCM" . }}
{{/*
Get the initialization scripts ConfigMap name.
*/}}
{{- define "mariadb.initdbScriptsCM" -}}
{{- if .Values.initdbScriptsConfigMap -}}
{{- printf "%s" .Values.initdbScriptsConfigMap -}}
{{- else -}}
{{- printf "%s-init-scripts" (include "master.fullname" .) -}}
{{- end -}}
{{- end -}}

{{/*
Create the name of the service account to use
*/}}
{{- define "mariadb.serviceAccountName" -}}
{{- if .Values.serviceAccount.create -}}
    {{ default (include "mariadb.fullname" .) .Values.serviceAccount.name }}
{{- else -}}
    {{ default "default" .Values.serviceAccount.name }}
{{- end -}}
{{- end -}}

{{/*
Return the proper Docker Image Registry Secret Names
*/}}
{{- define "mariadb.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 "mariadb.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 for the master
*/}}
{{- define "mariadb.master.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.master.persistence.storageClass -}}
              {{- if (eq "-" .Values.master.persistence.storageClass) -}}
                  {{- printf "storageClassName: \"\"" -}}
              {{- else }}
                  {{- printf "storageClassName: %s" .Values.master.persistence.storageClass -}}
              {{- end -}}
        {{- end -}}
    {{- end -}}
{{- else -}}
    {{- if .Values.master.persistence.storageClass -}}
        {{- if (eq "-" .Values.master.persistence.storageClass) -}}
            {{- printf "storageClassName: \"\"" -}}
        {{- else }}
            {{- printf "storageClassName: %s" .Values.master.persistence.storageClass -}}
        {{- end -}}
    {{- end -}}
{{- end -}}
{{- end -}}

{{/*
Return  the proper Storage Class for the slave
*/}}
{{- define "mariadb.slave.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.slave.persistence.storageClass -}}
              {{- if (eq "-" .Values.slave.persistence.storageClass) -}}
                  {{- printf "storageClassName: \"\"" -}}
              {{- else }}
                  {{- printf "storageClassName: %s" .Values.slave.persistence.storageClass -}}
              {{- end -}}
        {{- end -}}
    {{- end -}}
{{- else -}}
    {{- if .Values.slave.persistence.storageClass -}}
        {{- if (eq "-" .Values.slave.persistence.storageClass) -}}
            {{- printf "storageClassName: \"\"" -}}
        {{- else }}
            {{- printf "storageClassName: %s" .Values.slave.persistence.storageClass -}}
        {{- end -}}
    {{- end -}}
{{- end -}}
{{- end -}}

{{/*
Return the name of the Secret used to store the passwords
*/}}
{{- define "mariadb.secretName" -}}
{{- if .Values.existingSecret -}}
{{ .Values.existingSecret }}
{{- else -}}
{{ template "mariadb.fullname" . -}}
{{- end -}}
{{- end -}}

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