name: Build & Deploy moonweb-site

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

# Cancel in-progress runs for the same branch
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@v4

      - uses: actions/setup-node@v4
        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@v4
        with:
          name: dist-${{ matrix.site }}
          path: dist/${{ matrix.site }}
          retention-days: 7

  deploy:
    name: Deploy ${{ matrix.site }}
    needs: build
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    strategy:
      fail-fast: false
      matrix:
        include:
          - site: hub
            cf_project: moonweb-hub
          - site: infra
            cf_project: moonweb-infra
          - site: smarthome
            cf_project: moonweb-smarthome
          - site: code
            cf_project: moonweb-code
          - site: retro
            cf_project: moonweb-retro
    steps:
      - name: Download build artifact
        uses: actions/download-artifact@v4
        with:
          name: dist-${{ matrix.site }}
          path: dist/${{ matrix.site }}

      - name: Deploy to Cloudflare Pages
        uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          command: pages deploy dist/${{ matrix.site }} --project-name=${{ matrix.cf_project }} --commit-dirty=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 "✅ All sites 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://hub.moonweb.org |" >> $GITHUB_STEP_SUMMARY
          echo "| infra | https://infra.moonweb.org |" >> $GITHUB_STEP_SUMMARY
          echo "| smarthome | https://smarthome.moonweb.org |" >> $GITHUB_STEP_SUMMARY
          echo "| code | https://code.moonweb.org |" >> $GITHUB_STEP_SUMMARY
          echo "| retro | https://retro.moonweb.org |" >> $GITHUB_STEP_SUMMARY

# Required repo secrets:
#   CLOUDFLARE_API_TOKEN   — Cloudflare API token with Pages:Edit permission
#   CLOUDFLARE_ACCOUNT_ID  — Cloudflare account ID
#
# Required one-time setup (see PLAN.md Phase 2):
#   Create Cloudflare Pages projects and bind custom domains.
#   DNS is already on Cloudflare (SPEC.md §4.6).
#   Note: Cloudflare Free-Tier limits to 5 Pages projects per repository.
#