# config file version
apiVersion: 1

# List of templates to import or update
# source https://community.grafana.com/t/working-configuration-example-for-alerts-templating-telegram-and-slack/80988
templates:
  - name: slack
    template: |
      {{ define "slack_title" }}
        {{ $hasCritical := false }}{{ $hasWarning := false }}{{ $hasInfo := false }}{{ $hasOthers := false }}
        {{- range .Alerts.Firing -}}
          {{- if eq .Annotations.severity "critical" -}}
            {{- $hasCritical = true -}}
          {{- else if eq .Annotations.severity "warning" -}}
            {{- $hasWarning = true -}}
          {{- else if eq .Annotations.severity "info" -}}
            {{- $hasInfo = true -}}
          {{- else -}}
            {{- $hasOthers = true -}}
          {{- end -}}
        {{- end -}}

        $CLUSTER_BASENAME
        {{ if gt (len .Alerts.Firing) 0 }}
          {{- if $hasCritical }}
          🔥 {{ len .Alerts.Firing }} Alert{{ if gt (len .Alerts.Firing) 1 }}s{{ end }} firing
          {{- else if $hasWarning }}
          ⚠️ {{ len .Alerts.Firing }} Alert{{ if gt (len .Alerts.Firing) 1 }}s{{ end }} firing
          {{- else }}
          :information_source: {{ len .Alerts.Firing }} Alert{{ if gt (len .Alerts.Firing) 1 }}s{{ end }} firing
          {{- end }}
        {{ end }}
        {{ if gt (len .Alerts.Resolved) 0 }} ✅ {{ len .Alerts.Resolved }} alert(s) resolved {{ end }}
      {{ end }}

      {{ define "slack_message" }}
        {{ $hasCritical := false }}{{ $hasWarning := false }}{{ $hasInfo := false }}{{ $hasOthers := false }}
        {{- range .Alerts.Firing -}}
          {{- if eq .Annotations.severity "critical" -}}
            {{- $hasCritical = true -}}
          {{- else if eq .Annotations.severity "warning" -}}
            {{- $hasWarning = true -}}
          {{- else if eq .Annotations.severity "info" -}}
            {{- $hasInfo = true -}}
          {{- else -}}
            {{- $hasOthers = true -}}
          {{- end -}}
        {{- end -}}
        {{ if $hasCritical }} 🔥Critical alerts {{ range .Alerts.Firing }} {{- if eq .Annotations.severity "critical" -}} {{ template "slack_alert_firing" .}} {{ end }} {{ end }} {{ end }}
        {{ if $hasWarning }} ⚠️Warning alerts {{ range .Alerts.Firing }} {{- if eq .Annotations.severity "warning" -}} {{ template "slack_alert_firing" .}} {{ end }} {{ end }} {{ end }}
        {{ if $hasInfo }} :information_source:Info alerts {{ range .Alerts.Firing }} {{- if eq .Annotations.severity "info" -}} {{ template "slack_alert_firing" .}} {{ end }} {{ end }} {{ end }}
        {{ if $hasOthers }} Other alerts {{ range .Alerts.Firing }} {{- if and (and (ne .Annotations.severity "info")  (ne .Annotations.severity "warning")) (ne .Annotations.severity "critical") -}} {{ template "slack_alert_firing" . }} {{ end }} {{ end }} {{ end }}
        {{ if gt (len .Alerts.Resolved) 0 }} ✅Resolved Alerts {{ range .Alerts.Resolved }} {{ template "slack_alert_resolved" .}} {{ end }} {{ end }}
      {{ end }}

      {{ define "slack_alert_firing" }}
        *{{ .Labels.alertname }}*
        {{ .Annotations.summary }}
        {{ if .Annotations.description }}{{ .Annotations.description }}{{ end }}
        {{- if .Labels.service }}
        Service: {{ .Labels.service }}
        {{- end }}
        {{ template "slack_gcloud_log_link" . }}
      {{ end }}

      {{ define "slack_alert_resolved" }}
        *{{ .Labels.alertname }}*
        {{ if .Annotations.severity }}{{ .Annotations.severity }}{{ end }}
        {{ .Annotations.summary }}
        {{ if .Annotations.description }}{{ .Annotations.description }}{{ end }}
      {{ end }}

      {{ define "slack_gcloud_log_link" }}<https://console.cloud.google.com/logs/query;startTime={{ (.StartsAt.Add -600000000000).UTC.Format "2006-01-02T15:04:05Z"  }};endTime={{ (.StartsAt.Add 600000000000).UTC.Format "2006-01-02T15:04:05Z"  }};query=resource.labels.cluster_name%3D%22cn-$CLUSTER_BASENAMEnet%22%0A{{ .Labels.gcloud_filter }}?project=$GCP_PROJECT|cloud logs>{{ end }}

      {{ define "slack_color" -}}
        {{ $hasCritical := false }}{{ $hasWarning := false }}{{ $hasInfo := false }}{{ $hasOthers := false }}
        {{- range .Alerts.Firing -}}
          {{- if eq .Annotations.severity "critical" -}}
            {{- $hasCritical = true -}}
          {{- else if eq .Annotations.severity "warning" -}}
            {{- $hasWarning = true -}}
          {{- else if eq .Annotations.severity "info" -}}
            {{- $hasInfo = true -}}
          {{- else -}}
            {{- $hasOthers = true -}}
          {{- end -}}
        {{- end -}}
        {{ if eq .Status "firing" -}}
          {{ if $hasCritical -}}
            danger
          {{- else if $hasWarning -}}
            warning
          {{- else -}}
            #439FE0
          {{- end -}}
        {{ else -}}
          good
        {{- end }}
      {{- end }}

      {{ define "support_email_message" }}
      [ MAINNET-DA2-SVN-CRITICAL-ALERT 9f2b7e1a-4c3d-58b9-9f1e-df9c4a5b6e7d ]
      {{ if gt (len .Alerts.Firing) 0 }}**Firing**
      {{ template "__text_alert_list" .Alerts.Firing }}{{ if gt (len .Alerts.Resolved) 0 }}
      {{ end }}{{ end }}{{ if gt (len .Alerts.Resolved) 0 }}**Resolved**
      {{ template "__text_alert_list" .Alerts.Resolved }}{{ end }}{{ end }}