name: CI/CD Pipeline

on:
  push:
    branches: [main]

env:
  REGISTRY: git.fpmoz.sum.ba
  IMAGE: git.fpmoz.sum.ba/${{ github.repository }}

jobs:
  # ── JOB 1: Build i Push Docker image ──────────────────
  build:
    runs-on: self-hosted
    steps:
      - name: Checkout koda
        uses: actions/checkout@v4

      - name: Login u Gitea registry
        run: |
          echo ${{ secrets.REGISTRY_PASSWORD }} | \
            docker login $REGISTRY \
            -u ${{ secrets.REGISTRY_USER }} --stdin

      - name: Build i Push image
        run: |
          TAG=${{ github.sha }}
          docker build -t $IMAGE:$TAG -t $IMAGE:latest .
          docker push $IMAGE:$TAG
          docker push $IMAGE:latest
          echo $TAG > tag.txt

      - name: Spremi image tag
        uses: actions/upload-artifact@v4
        with:
          name: image-tag
          path: tag.txt

  # ── JOB 2: Deploy na k3s ───────────────────────────────
  deploy:
    needs: build
    runs-on: self-hosted
    steps:
      - name: Checkout koda
        uses: actions/checkout@v4

      - name: Preuzmi image tag
        uses: actions/download-artifact@v4
        with:
          name: image-tag

      - name: Postavi kubeconfig
        run: |
          mkdir -p ~/.kube
          echo "${{ secrets.KUBE_CONFIG }}" | base64 -d > ~/.kube/config
          chmod 600 ~/.kube/config

      - name: Update image tag u manifestu
        run: |
          TAG=$(cat tag.txt)
          sed -i "s|image:.*|image: $IMAGE:$TAG|" k8s/distribuirani/deployment.yaml

      - name: Deploy na k3s
        run: |
          kubectl apply -f k8s/distribuirani/
          kubectl rollout status deployment/distribuirani \
            -n student-${{ github.actor }} --timeout=120s