name: Build & Deploy stripe-to-invoice (with DB secrets + migrations)

on:
  push:
    branches:
      - main
      - feature/**
      - release/**
    tags:
      - "*"
  workflow_dispatch:

jobs:
  # --------------------------------------------------
  # BUILD IMAGE
  # --------------------------------------------------
  build:
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4

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

      - name: Build & push image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: stripe_to_invoice/deployment/Dockerfile
          push: true
          tags: docker.io/kimjunte/stripe_to_invoice:${{ env.GITHUB_REF_SLUG }}

  # --------------------------------------------------
  # DEPLOY POSTGRES
  # --------------------------------------------------
  deploy-db:
    runs-on: mealcraft-runners
    needs: build
    steps:
      - uses: actions/checkout@v4

      - name: Install kubectl
        run: |
          sudo apt-get update
          sudo apt-get install -y curl ca-certificates gettext
          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: Configure kubeconfig (in-cluster)
        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

          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
          kubectl config use-context runner-context

      - name: Decide environment
        run: |
          if [[ "$GITHUB_REF" == refs/heads/release/* || "$GITHUB_REF" == refs/tags/* ]]; then
            echo "ENV=prod" >> $GITHUB_ENV
            echo "NAMESPACE=default" >> $GITHUB_ENV
            echo "PG_VOLUME=stripe_invoice_prod" >> $GITHUB_ENV
          else
            echo "ENV=dev" >> $GITHUB_ENV
            echo "NAMESPACE=dev" >> $GITHUB_ENV
            echo "PG_VOLUME=stripe_invoice_dev" >> $GITHUB_ENV
          fi

      - name: Apply Postgres manifests
        run: |
          export ENV NAMESPACE PG_VOLUME
          envsubst < db/k8s/postgres/stripe-to-invoice-db.yaml | kubectl apply -f -

  # --------------------------------------------------
  # APPLY DB + APP SECRETS
  # --------------------------------------------------
  secrets:
    runs-on: mealcraft-runners
    needs: deploy-db
    steps:
      - uses: actions/checkout@v4

      - name: Install kubectl
        run: |
          sudo apt-get update
          sudo apt-get install -y curl ca-certificates gettext
          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: Configure kubeconfig (in-cluster)
        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

          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
          kubectl config use-context runner-context

      - name: Decide environment
        run: |
          if [[ "$ENV" == "prod" ]]; then
            echo "POSTGRES_HOST=postgres-prod.default.svc.cluster.local" >> $GITHUB_ENV
            echo "RUNTIME_SECRET=postgres-prod" >> $GITHUB_ENV
            echo "NAMESPACE=default" >> $GITHUB_ENV
          else
            echo "POSTGRES_HOST=postgres-dev.dev.svc.cluster.local" >> $GITHUB_ENV
            echo "RUNTIME_SECRET=postgres-dev" >> $GITHUB_ENV
            echo "NAMESPACE=dev" >> $GITHUB_ENV
          fi