name: GKE Deploy
on: [push]

env:
  PROJECT_ID: deployments-485614
  REGION: europe-west1
  REPO_NAME: gitea-repo    # Assicurati di aver creato questo repo su Artifact Registry!
  IMAGE_NAME: demo-app
  CLUSTER_NAME: gitea-cluster
  CLUSTER_ZONE: europe-west1-b

jobs:
  build-and-deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      # 1. Login su Google Cloud
      - name: Google Auth
        uses: google-github-actions/auth@v1
        with:
          credentials_json: ${{ secrets.GCP_SA_KEY }}

      # 2. Setup Strumenti Google
      - name: Set up Cloud SDK
        uses: google-github-actions/setup-gcloud@v1
        with:
          install_components: 'gke-gcloud-auth-plugin,kubectl'
      # 3. Configura Docker per Google
      - name: Docker Auth
        run: gcloud auth configure-docker ${{ env.REGION }}-docker.pkg.dev

      # 4. Build e Push dell'immagine
      - name: Build and Push
        run: |
          # Costruiamo il tag completo dell'immagine
          IMAGE_TAG=${{ env.REGION }}-docker.pkg.dev/${{ env.PROJECT_ID }}/${{ env.REPO_NAME }}/${{ env.IMAGE_NAME }}:${{ gitea.sha }}
          
          # Costruiamo e carichiamo
          docker build -t $IMAGE_TAG .
          docker push $IMAGE_TAG

      # 5. Aggiorna Kubernetes
      - name: Deploy to GKE
        run: |
          gcloud container clusters get-credentials ${{ env.CLUSTER_NAME }} --zone ${{ env.CLUSTER_ZONE }}
          
          # Aggiorna l'immagine nel deployment esistente
          kubectl set image deployment/demo-app demo-container=${{ env.REGION }}-docker.pkg.dev/${{ env.PROJECT_ID }}/${{ env.REPO_NAME }}/${{ env.IMAGE_NAME }}:${{ gitea.sha }}