{{- /*
  Celery Beat scheduler — publishes periodic tasks to the broker.
  Exactly ONE replica must run; never scale this deployment.
*/ -}}
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "docuelevate.fullname" . }}-beat
  namespace: {{ .Release.Namespace }}
  labels:
    {{- include "docuelevate.labels" . | nindent 4 }}
    app.kubernetes.io/component: beat
spec:
  replicas: 1
  strategy:
    type: Recreate          # Prevent two Beat instances from running simultaneously
  selector:
    matchLabels:
      {{- include "docuelevate.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: beat
  template:
    metadata:
      labels:
        {{- include "docuelevate.selectorLabels" . | nindent 8 }}
        app.kubernetes.io/component: beat
      {{- with .Values.beat.podAnnotations }}
      annotations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
    spec:
      serviceAccountName: {{ include "docuelevate.serviceAccountName" . }}
      {{- with .Values.imagePullSecrets }}
      imagePullSecrets:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.beat.podSecurityContext }}
      securityContext:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      containers:
        - name: beat
          image: {{ include "docuelevate.image" . }}
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          command:
            - celery
            - -A
            - app.celery_worker
            - beat
            - --loglevel=info
          envFrom:
            - configMapRef:
                name: {{ include "docuelevate.fullname" . }}-config
            - secretRef:
                name: {{ include "docuelevate.fullname" . }}-secret
          {{- with .Values.beat.securityContext }}
          securityContext:
            {{- toYaml . | nindent 12 }}
          {{- end }}
          resources:
            {{- toYaml .Values.beat.resources | nindent 12 }}
          volumeMounts:
            - name: workdir
              mountPath: /workdir
      volumes:
        - name: workdir
          {{- if .Values.workdir.persistence.enabled }}
          persistentVolumeClaim:
            claimName: {{ .Values.workdir.persistence.existingClaim | default (printf "%s-workdir" (include "docuelevate.fullname" .)) }}
          {{- else }}
          emptyDir: {}
          {{- end }}
      {{- with .Values.beat.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.beat.affinity }}
      affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.beat.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}