name: Deploy server-up (prod)

on:
  push:
    branches: [main]
    tags: ['v*']
  workflow_dispatch:

concurrency:
  group: server-up-deploy-prod
  cancel-in-progress: false

jobs:
  deploy:
    runs-on: [self-hosted, prod]
    timeout-minutes: 20

    env:
      DEPLOY_DIR: /opt/server-up

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Bepaal versie
        id: version
        run: |
          set -euo pipefail
          BASE="$(tr -d '[:space:]' < VERSION 2>/dev/null || echo 0.0.0)"
          if [[ "${GITHUB_REF}" == refs/tags/* ]]; then
            VERSION="${GITHUB_REF_NAME#v}"
            CHANNEL="release"
          else
            VERSION="${BASE}"
            CHANNEL="main"
          fi
          echo "VERSION=${VERSION}" >> "$GITHUB_ENV"
          echo "CHANNEL=${CHANNEL}" >> "$GITHUB_ENV"
          echo "SU_VERSION=${VERSION}" >> "$GITHUB_ENV"
          echo "Deploying version: ${VERSION} (${CHANNEL})"

      - name: Tests draaien
        run: |
          set -euo pipefail
          python3 -m venv /tmp/su-test-venv
          /tmp/su-test-venv/bin/pip install -q -r server-up/requirements.txt pytest
          /tmp/su-test-venv/bin/python -m pytest tests -q

      - name: Sync code naar deploy-directory
        run: |
          set -euo pipefail
          rsync -a --delete \
            --exclude='.git/' \
            --exclude='.forgejo/' \
            ./ "$DEPLOY_DIR/"

      - name: Schrijf VERSION-bestand
        working-directory: ${{ env.DEPLOY_DIR }}
        run: echo "${VERSION}" > VERSION

      - name: Bouwen (en pushen naar de registry)
        working-directory: ${{ env.DEPLOY_DIR }}
        run: |
          set -euo pipefail
          # SU_TAG vastleggen zodat compose en de "Nu bijwerken"-knop in de app
          # naar hetzelfde image wijzen (zie docs/updates.md).
          touch .env
          sed -i '/^SU_TAG=/d' .env
          echo "SU_TAG=${VERSION}" >> .env

          # Draait deze server vanaf de registry (SU_IMAGE in .env), dan bouwen
          # we hier én pushen we het resultaat, zodat de in-app updateknop het
          # image kan ophalen. Bouwen en pushen zitten bewust in dezelfde job:
          # een aparte build-workflow zou met deze deploy om de runner strijden.
          SU_IMAGE="$(grep -E '^SU_IMAGE=' .env | cut -d= -f2- || true)"
          docker compose build --pull

          if [ -n "$SU_IMAGE" ]; then
            echo "Registry-modus: ${SU_IMAGE}:${VERSION} pushen"
            echo "${{ secrets.PACKAGE_TOKEN }}" \
              | docker login "${{ vars.REGISTRY }}" -u "${{ vars.OWNER }}" --password-stdin
            docker tag "${SU_IMAGE}:${VERSION}" "${SU_IMAGE}:${CHANNEL}" || true
            docker push "${SU_IMAGE}:${VERSION}"
            # Pre-releases krijgen geen 'latest': dat hoort bij stable.
            case "$VERSION" in
              *-*) docker tag "${SU_IMAGE}:${VERSION}" "${SU_IMAGE}:beta"
                   docker push "${SU_IMAGE}:beta" ;;
              *)   docker tag "${SU_IMAGE}:${VERSION}" "${SU_IMAGE}:latest"
                   docker push "${SU_IMAGE}:latest" ;;
            esac
            docker logout "${{ vars.REGISTRY }}" || true
          else
            echo "Lokale bouwmodus (geen SU_IMAGE ingesteld)"
            docker tag "server-up:${VERSION}" "server-up:${CHANNEL}" || true
          fi

      - name: Deploy
        working-directory: ${{ env.DEPLOY_DIR }}
        run: |
          set -euo pipefail
          docker compose up -d --remove-orphans
          docker compose ps

      - name: Wachten op healthcheck
        run: |
          set -euo pipefail
          for i in {1..40}; do
            status=$(docker inspect --format '{{.State.Health.Status}}' server-up 2>/dev/null || echo "starting")
            echo "poll $i: $status"
            if [ "$status" = "healthy" ]; then
              echo "server-up is healthy als versie ${VERSION}"
              exit 0
            fi
            sleep 3
          done
          echo "server-up werd niet healthy in tijd — logs:"
          cd "$DEPLOY_DIR" && docker compose logs --tail=200
          exit 1

      - name: Oude images opruimen (behoud laatste 5)
        if: success()
        run: |
          docker images server-up --format '{{.Tag}} {{.ID}}' \
            | grep -vE '^(latest|release|main) ' \
            | tail -n +6 \
            | awk '{print $2}' \
            | xargs -r docker rmi -f || true
          docker image prune -f