name: Build & Deploy moonweb.org

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

env:
  NODE_VERSION: "22"

jobs:
  build:
    name: Build moonweb.org
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - uses: actions/setup-node@v7
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: "npm"

      - name: Install dependencies
        run: npm ci

      - name: Build
        run: npm run build

      - name: Validate build output
        run: |
          if [ ! -d "_site" ]; then
            echo "Error: _site not found"
            exit 1
          fi
          if [ -z "$(ls -A _site 2>/dev/null)" ]; then
            echo "Error: _site is empty"
            exit 1
          fi
          echo "Build output:"
          find _site -type f | head -20

      - name: Upload build artifact
        uses: actions/upload-artifact@v7
        with:
          name: dist-moonweb
          path: _site
          retention-days: 7

  deploy:
    name: Deploy moonweb.org
    needs: build
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    steps:
      - name: Download build artifact
        uses: actions/download-artifact@v8
        with:
          name: dist-moonweb
          path: _site

      - name: Deploy via SFTP to IONOS
        uses: wlixcc/SFTP-Deploy-Action@v1.2.6
        with:
          local_path: './_site/*'
          server: ${{ secrets.IONOS_SFTP_HOST }}
          username: ${{ secrets.IONOS_SFTP_USER }}
          password: ${{ secrets.IONOS_SFTP_PASSWORD }}
          remote_path: '/websites/moonweb/'
          port: 22
          sftp_only: true

  summary:
    name: Deploy Summary
    needs: deploy
    runs-on: ubuntu-latest
    if: always()
    steps:
      - name: Print deployment summary
        run: |
          echo "## Deployment Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          if [ "${{ needs.deploy.result }}" = "success" ]; then
            echo "✅ moonweb.org deployed successfully!" >> $GITHUB_STEP_SUMMARY
          else
            echo "❌ Deployment failed. Check the deploy job for details." >> $GITHUB_STEP_SUMMARY
          fi
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### Site" >> $GITHUB_STEP_SUMMARY
          echo "| Site | URL |" >> $GITHUB_STEP_SUMMARY
          echo "|------|-----|" >> $GITHUB_STEP_SUMMARY
          echo "| moonweb | https://www.moonweb.org |" >> $GITHUB_STEP_SUMMARY

# Required repo secrets:
#   IONOS_SFTP_HOST     — IONOS SFTP server hostname
#   IONOS_SFTP_USER     — IONOS SFTP username
#   IONOS_SFTP_PASSWORD — IONOS SFTP password