---
# Role: smartapp
# Template: smartapp-web.yml.j2
# Déploiement du frontend web SmartApp (nginx)
# Variables:
#   {{ smartapp_namespace }}  - Namespace Kubernetes (défaut: smartapp)
#   {{ smartapp_domain }}     - Domaine public (défaut: smartapp.digitribe.fr)

---
apiVersion: v1
kind: Namespace
metadata:
  name: {{ smartapp_namespace | default('smartapp') }}
  labels:
    app: smartapp
    component: web
    version: "1.0"

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: smartapp-web
  namespace: {{ smartapp_namespace | default('smartapp') }}
  labels:
    app: smartapp
    component: web
    version: "1.0"
spec:
  replicas: 2
  selector:
    matchLabels:
      app: smartapp
      component: web
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
  template:
    metadata:
      labels:
        app: smartapp
        component: web
        version: "1.0"
    spec:
      containers:
        - name: nginx
          image: nginx:1.25-alpine
          imagePullPolicy: IfNotPresent
          ports:
            - name: http
              containerPort: 80
              protocol: TCP
          resources:
            requests:
              cpu: "100m"
              memory: "128Mi"
            limits:
              cpu: "500m"
              memory: "256Mi"
          livenessProbe:
            httpGet:
              path: /healthz
              port: http
            initialDelaySeconds: 10
            periodSeconds: 15
            timeoutSeconds: 5
            failureThreshold: 3
          readinessProbe:
            httpGet:
              path: /healthz
              port: http
            initialDelaySeconds: 5
            periodSeconds: 10
            timeoutSeconds: 3
            failureThreshold: 3
          volumeMounts:
            - name: nginx-config
              mountPath: /etc/nginx/conf.d
              readOnly: true
            - name: static-content
              mountPath: /usr/share/nginx/html
              readOnly: true
      volumes:
        - name: nginx-config
          configMap:
            name: smartapp-web-nginx-config
        - name: static-content
          configMap:
            name: smartapp-web-static
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 100
              podAffinityTerm:
                labelSelector:
                  matchExpressions:
                    - key: app
                      operator: In
                      values:
                        - smartapp
                    - key: component
                      operator: In
                      values:
                        - web
                topologyKey: kubernetes.io/hostname

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: smartapp-web-nginx-config
  namespace: {{ smartapp_namespace | default('smartapp') }}
  labels:
    app: smartapp
    component: web
    version: "1.0"
data:
  default.conf: |
    server {
        listen 80;
        server_name {{ smartapp_domain | default('smartapp.digitribe.fr') }};
        root /usr/share/nginx/html;
        index index.html;

        # Health check endpoint
        location /healthz {
            access_log off;
            return 200 "healthy\n";
            add_header Content-Type text/plain;
        }

        # Static assets with caching
        location /static/ {
            expires 30d;
            add_header Cache-Control "public, immutable";
        }

        # SPA fallback
        location / {
            try_files $uri $uri/ /index.html;
        }

        # Security headers
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    }

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: smartapp-web-static
  namespace: {{ smartapp_namespace | default('smartapp') }}
  labels:
    app: smartapp
    component: web
    version: "1.0"
data:
  index.html: |
    <!DOCTYPE html>
    <html lang="fr">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>SmartApp - DigiTribe</title>
    </head>
    <body>
        <h1>SmartApp - DigiTribe</h1>
        <p>Frontend web opérationnel.</p>
    </body>
    </html>

---
apiVersion: v1
kind: Service
metadata:
  name: smartapp-web
  namespace: {{ smartapp_namespace | default('smartapp') }}
  labels:
    app: smartapp
    component: web
    version: "1.0"
spec:
  type: ClusterIP
  selector:
    app: smartapp
    component: web
  ports:
    - name: http
      port: 80
      targetPort: 80
      protocol: TCP

---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: smartapp-web
  namespace: {{ smartapp_namespace | default('smartapp') }}
  labels:
    app: smartapp
    component: web
    version: "1.0"
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/proxy-body-size: "10m"
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
spec:
  ingressClassName: nginx
  tls:
    - hosts:
        - {{ smartapp_domain | default('smartapp.digitribe.fr') }}
      secretName: smartapp-web-tls
  rules:
    - host: {{ smartapp_domain | default('smartapp.digitribe.fr') }}
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: smartapp-web
                port:
                  number: 80