apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Release.Name }}
  labels:
    app.kubernetes.io/name: {{ .Chart.Name }}
    app.kubernetes.io/instance: {{ .Release.Name }}
    app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
    app.kubernetes.io/component: mqtt-bridge
    app.kubernetes.io/part-of: home-automation
  annotations:
    version-source: {{ index .Chart.Annotations "version-source" }}
    version-pattern: {{ index .Chart.Annotations "version-pattern" | quote }}
spec:
  replicas: 1
  strategy:
    type: Recreate  # Only one instance should control the AC units
  selector:
    matchLabels:
      app: {{ .Release.Name }}
  template:
    metadata:
      labels:
        app: {{ .Release.Name }}
      annotations:
        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
    spec:
      {{- with .Values.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.affinity }}
      affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      containers:
        - name: {{ .Chart.Name }}
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          env:
            - name: TZ
              value: {{ .Values.timezone | quote }}
            {{- if .Values.existingSecret }}
            - name: MQTT_USER
              valueFrom:
                secretKeyRef:
                  name: {{ .Values.existingSecret }}
                  key: {{ .Values.secretKeys.mqttUser }}
            - name: MQTT_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: {{ .Values.existingSecret }}
                  key: {{ .Values.secretKeys.mqttPassword }}
            {{- end }}
          volumeMounts:
            - name: config
              mountPath: /app/config
              readOnly: true
          resources:
            {{- toYaml .Values.resources | nindent 12 }}
          # Startup probe: give MQTT connection and device auth time to complete
          startupProbe:
            exec:
              command:
                - /bin/sh
                - -c
                - 'pgrep -f /main > /dev/null'
            initialDelaySeconds: 5
            periodSeconds: 5
            failureThreshold: 12  # 60 seconds total startup time
          # Liveness probe: verify process is still running
          livenessProbe:
            exec:
              command:
                - /bin/sh
                - -c
                - 'pgrep -f /main > /dev/null'
            initialDelaySeconds: 30
            periodSeconds: 30
            failureThreshold: 3
          # Readiness probe: check config file is present and process is running
          readinessProbe:
            exec:
              command:
                - /bin/sh
                - -c
                - 'test -f /app/config/config.yml && pgrep -f /main > /dev/null'
            initialDelaySeconds: 10
            periodSeconds: 15
      volumes:
        - name: config
          configMap:
            name: {{ .Release.Name }}-config