name: Build juntekim.com

on:
  push:
    tags:
      - "*"
    branches:
      - "**"

jobs:
  Push-to-juntekim-to-docker-hub:
    runs-on: ubuntu-22.04

    steps:
      - uses: actions/checkout@v3

      - name: Inject slug/short variables
        uses: rlespinasse/github-slug-action@v4

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_TOKEN }}

      - name: Build Docker Image
        run: |
          docker build \
            -f juntekim_frontend/deployment/Dockerfile \
            -t docker.io/kimjunte/portfolio_page:$GITHUB_REF_SLUG \
            juntekim_frontend

      - name: Push to Docker Hub
        run: |
          docker push docker.io/kimjunte/portfolio_page:$GITHUB_REF_SLUG


  run-on-k8s:
    runs-on: mealcraft-runners      # <-- your ARC scale set label
    needs: Push-to-juntekim-to-docker-hub
    steps:
      - uses: actions/checkout@v4

      # Install kubectl inside containerMode's default Ubuntu
      - name: Install kubectl
        run: |
          sudo apt-get update
          sudo apt-get install -y curl ca-certificates
          curl -LO "https://dl.k8s.io/release/$(curl -sL https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
          sudo install -m 0755 kubectl /usr/local/bin/kubectl

      - name: Install envsubst
        run: |
          sudo apt-get update
          sudo apt-get install -y gettext       # <---- envsubst lives here

      # Configure kubeconfig from ARC's service account
      - name: Configure kubeconfig
        run: |
          KUBE_HOST="https://$KUBERNETES_SERVICE_HOST:$KUBERNETES_SERVICE_PORT"
          SA_TOKEN=$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)
          CA_CERT=/var/run/secrets/kubernetes.io/serviceaccount/ca.crt
          NAMESPACE=$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace)

          kubectl config set-cluster microk8s --server="$KUBE_HOST" --certificate-authority="$CA_CERT"
          kubectl config set-credentials runner --token="$SA_TOKEN"
          kubectl config set-context runner-context --cluster=microk8s --user=runner --namespace="$NAMESPACE"
          kubectl config use-context runner-context

      - name: Inject slug variables
        uses: rlespinasse/github-slug-action@v4

      - name: Set namespace
        id: ns
        run: |
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            echo "NAMESPACE=default" >> $GITHUB_ENV
          else
            echo "NAMESPACE=staging" >> $GITHUB_ENV
          fi

      - name: Set hostname
        run: |
          if [ "$NAMESPACE" = "staging" ]; then
            echo "HOSTNAME=staging.juntekim.com" >> $GITHUB_ENV
          else
            echo "HOSTNAME=juntekim.com" >> $GITHUB_ENV
          fi

      - name: Deploy to Kubernetes
        run: |
          export IMAGE="docker.io/kimjunte/portfolio_page:$GITHUB_REF_SLUG"
          export NAMESPACE HOSTNAME

          envsubst < juntekim_frontend/deployment/deployment.yml | kubectl apply -f -
          envsubst < juntekim_frontend/deployment/service.yml    | kubectl apply -f -
          envsubst < juntekim_frontend/deployment/ingressroute.yml | kubectl apply -f -