name: Build & Deploy

on:
  [workflow_dispatch, push]

env:
  REGISTRY: git.aggtaa.com
#  IMAGE_PREFIX: ${{ gitea.repository }} # set by a step

jobs:
  # ── BUILD SERVER ──────────────────────────────────────────────────────────────
  build-app:
    runs-on: docker1
    outputs:
      IMAGE_PREFIX: ${{ steps.prefix.outputs.IMAGE_PREFIX }}
    defaults:
      run:
        shell: sh
        working-directory: /workspace
    steps:
      - name: Checkout
        working-directory: /
        run: |
          mkdir -p /workspace
          cd /workspace

          if [ -d .git ]; then
            git remote set-url origin ${{ gitea.server_url }}/${{ gitea.repository }}.git
          else
            git init
            git remote add origin ${{ gitea.server_url }}/${{ gitea.repository }}.git
          fi

          git fetch --prune origin ${{ gitea.ref_name }}
          git checkout -f FETCH_HEAD
          git reset --hard FETCH_HEAD
          git clean -fdx

      - name: Set lowercase image prefix
        run: echo "IMAGE_PREFIX=$(echo '${{ gitea.repository }}' | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV

      - name: Build & push app
        run: |
          cd /workspace
          echo "${{ secrets.REGISTRY_PASSWORD }}" | \
            docker login ${{ env.REGISTRY }} -u ${{ secrets.REGISTRY_USER }} --password-stdin

          /data/tools/docker-buildx build \
            --cache-from type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/app:cache \
            --cache-to   type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/app:cache,mode=max \
            --tag ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/app:latest \
            --tag ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/app:${{ gitea.sha }} \
            --file Dockerfile \
            --push \
            .

  # ── DEPLOY ────────────────────────────────────────────────────────────────────
  deploy:
    runs-on: docker1
    needs: [build-app]
    if: always() && !failure() && !cancelled()
    defaults:
      run:
        shell: sh
    steps:
      - name: Debug environment
        run: |
          hostname
          cat /etc/hostname
          docker --version
          docker compose version || echo "compose plugin missing here"
          ls /usr/libexec/docker/cli-plugins/ 2>/dev/null || echo "no plugins dir"
          mount | grep docker || true
      - name: Deploy
        run: |
          mkdir -p "/app-cache/${{ gitea.repository }}"
          cd "/app-cache/${{ gitea.repository }}"
          if [ ! -d .git ]; then
            git clone ${{ gitea.server_url }}/${{ gitea.repository }}.git .
          else
            git pull origin main
          fi
          printf 'REGISTRY=%s\nIMAGE_PREFIX=%s\n' \
            '${{ env.REGISTRY }}' \
            '${{ needs.build-app.outputs.image_prefix }}' > .env
          /data/tools/docker-compose pull
          /data/tools/docker-compose up -d --remove-orphans
          docker image prune -f