name: ci

on:
  push:
  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag to deploy'
        required: false

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3
      - name: Set up JDK 17
        uses: actions/setup-java@v3
        with:
          java-version: '17'
          distribution: 'temurin'
          cache: maven

      - name: Build with Maven
        run: ./mvnw clean package -DskipTests

  run-tests:
    runs-on: ubuntu-latest
    needs: [ build ]

    steps:

      - uses: actions/checkout@v3
      - name: Set up JDK 17
        uses: actions/setup-java@v3
        with:
          java-version: '17'
          distribution: 'temurin'
          cache: maven

      - name: Running Tests with Maven
        run: ./mvnw test

  docker:
    needs: [ build, run-tests ]
    if: github.ref_name == 'main' || github.ref_name == 'develop'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write   # required to push to ghcr.io
      id-token: write   # optional for OIDC if you use it

    steps:
      - uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Prepare image tags
        run: |
          OWNER=$(echo "${GITHUB_REPOSITORY_OWNER}" | tr '[:upper:]' '[:lower:]')
          REPO=$(echo "${GITHUB_REPOSITORY#*/}" | tr '[:upper:]' '[:lower:]')
          
          # Determine tag
          if [ "${GITHUB_REF_NAME}" = "main" ]; then
            TAG="latest"
          else
            TAG="dev"
          fi
          
          SHORT_SHA=$(echo "${GITHUB_SHA}" | cut -c1-7)
          IMAGE_BASE="ghcr.io/${OWNER}/${REPO}"
          
          echo "IMAGE_LATEST=${IMAGE_BASE}:${TAG}" >> $GITHUB_ENV
          echo "IMAGE_SHA=${IMAGE_BASE}:sha-${SHORT_SHA}" >> $GITHUB_ENV

      - name: Build and push Docker image (with registry cache)
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          tags: |
            ${{ env.IMAGE_LATEST }}
            ${{ env.IMAGE_SHA }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  deploy:
    needs: [docker]
    runs-on: ubuntu-latest
    if: github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && github.ref_name == 'main')
    environment:
      name: ${{ github.ref_name == 'main' && 'production' || 'dev' }}
      url: https://${{ vars.KUBE_DOMAIN }}
    env:
      # Kubernetes Specific
      KUBE_NAMESPACE: ${{ vars.KUBE_NAMESPACE }}
      KUBE_API_DOMAIN: ${{ vars.KUBE_API_DOMAIN }}
      WORKER_NODE_LABEL: ${{ vars.WORKER_NODE_LABEL }}
      # Application Specific
      FRONTEND_PATH: ${{ vars.FRONTEND_PATH }}

    steps:
      - uses: actions/checkout@v4
      - uses: azure/setup-kubectl@v4

      - name: Set Up Kubeconfig
        uses: azure/k8s-set-context@v4
        with:
          kubeconfig: ${{ secrets.PORTFOLIO_KUBECONFIG }}

      - name: Prepare Image Tag
        run: |
          OWNER=$(echo "${GITHUB_REPOSITORY_OWNER}" | tr '[:upper:]' '[:lower:]')
          REPO=$(echo "${GITHUB_REPOSITORY#*/}" | tr '[:upper:]' '[:lower:]')
          SHORT_SHA=$(echo "${GITHUB_SHA}" | cut -c1-7)
          
          IMAGE_BASE="ghcr.io/${OWNER}/${REPO}"
          IMAGE_TAG="${{ github.event.inputs.tag || '' }}"
          if [ -z "$IMAGE_TAG" ]; then
            IMAGE_TAG="sha-$SHORT_SHA"
          fi
          
          echo "IMAGE_BASE=${IMAGE_BASE}" >> $GITHUB_ENV
          echo "IMAGE_TAG=${IMAGE_TAG}" >> $GITHUB_ENV
          echo "" >> $GITHUB_ENV

      - name: Import SOPS GPG Key
        run: |
          echo "${{ secrets.PORTFOLIO_GPG_PRIVATE_KEY }}" | gpg --import

      - name: Install SOPS
        run: |
          curl -L https://github.com/mozilla/sops/releases/download/v3.9.1/sops-v3.9.1.linux.amd64 -o /usr/local/bin/sops
          chmod +x /usr/local/bin/sops

      - name: Decrypt SOPS Secrets Test
        run: |
          cd .k8s
          sops -d secrets.enc.yml > secrets.yml

      - name: Apply Kubernetes Manifests - Configuration
        run: cat .k8s/config.template.yml | envsubst | kubectl apply -f -

      - name: Apply Kubernetes Manifests - Secrets
        run: cat .k8s/secrets.yml | envsubst | kubectl apply -f -

      - name: Apply Kubernetes Manifests - Postgres Cluster
        run: cat .k8s/postgres-cluster.template.yml | envsubst | kubectl apply -f -

      - name: Apply Kubernetes Manifests - Redis Cluster
        run: cat .k8s/redis.template.yml | envsubst | kubectl apply -f -

      - name: Apply Kubernetes Manifests - Deployment
        run: |
          cat .k8s/deployment.template.yml | envsubst | kubectl apply -f -
          cat .k8s/deployment.template.yml | envsubst | kubectl rollout status deployment/frontend-deployment -n ${KUBE_NAMESPACE} --timeout=120s

      - name: Apply Kubernetes Manifests - Service
        run: cat .k8s/service.template.yml | envsubst | kubectl apply -f -

      - name: Apply Kubernetes Manifests - Ingress
        run: cat .k8s/ingress.template.yml | envsubst | kubectl apply -f -