name: Build & Deploy moonweb.org

on:
  push:
    branches: [main]
    paths-ignore:
      - 'stefankoelle/**'
      - '.github/workflows/deploy-stefankoelle.yml'
  pull_request:
    branches: [main]
    paths-ignore:
      - 'stefankoelle/**'
      - '.github/workflows/deploy-stefankoelle.yml'

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

env:
  NODE_VERSION: "22"

jobs:
  build:
    name: Build ${{ matrix.site }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        site: [hub, infra, smarthome, code, retro]
    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 ${{ matrix.site }}
        run: npm run build:${{ matrix.site }}

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

      - name: Upload build artifact
        uses: actions/upload-artifact@v7
        with:
          name: dist-${{ matrix.site }}
          path: dist/${{ matrix.site }}
          retention-days: 7

  build-timecapsule:
    name: Build timecapsule
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

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

      - name: Install timecapsule dependencies
        run: cd timecapsule && npm ci

      - name: Build timecapsule
        run: npm run build:timecapsule

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

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

  merge:
    name: Merge all sites
    needs: [build, build-timecapsule]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - name: Download all artifacts
        uses: actions/download-artifact@v8
        with:
          path: artifacts/

      - name: Merge into dist/
        run: |
          mkdir -p dist

          # Hub becomes root
          cp -r artifacts/dist-hub/* dist/

          # Subdirectories
          for site in infra smarthome code retro timecapsule; do
            if [ -d "artifacts/dist-$site" ]; then
              cp -r "artifacts/dist-$site" "dist/$site"
            fi
          done

          # Copy shared CSS to root (accessible from all subdirectories)
          cp shared/base.css dist/shared-base.css
          cp shared/favicon/hub.svg dist/favicon.svg

          echo "Final structure:"
          find dist -maxdepth 2 -type f | sort | head -40
          echo "..."
          echo "Total files:"
          find dist -type f | wc -l

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

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

      - name: Deploy via SFTP
        uses: wlixcc/SFTP-Deploy-Action@v1.2.6
        with:
          local_path: './dist/*'
          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 jobs for details." >> $GITHUB_STEP_SUMMARY
          fi
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### Sites" >> $GITHUB_STEP_SUMMARY
          echo "| Site | URL |" >> $GITHUB_STEP_SUMMARY
          echo "|------|-----|" >> $GITHUB_STEP_SUMMARY
          echo "| hub | https://www.moonweb.org/ |" >> $GITHUB_STEP_SUMMARY
          echo "| infra | https://www.moonweb.org/infra/ |" >> $GITHUB_STEP_SUMMARY
          echo "| smarthome | https://www.moonweb.org/smarthome/ |" >> $GITHUB_STEP_SUMMARY
          echo "| code | https://www.moonweb.org/code/ |" >> $GITHUB_STEP_SUMMARY
          echo "| retro | https://www.moonweb.org/retro/ |" >> $GITHUB_STEP_SUMMARY
          echo "| timecapsule | https://www.moonweb.org/timecapsule/ |" >> $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