name: Deploy to Production

on:
  workflow_dispatch:

jobs:
  deploy-to-production:
    runs-on: ubuntu-latest
    timeout-minutes: 15
    steps:
      - name: Checkout master branch
        uses: actions/checkout@v4
        with:
          ref: master
          fetch-depth: 0

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Install dependencies
        run: npm install --no-audit --no-fund

      - name: Build application
        env:
          CI: true
        run: npm run build

      - name: Run unit tests
        env:
          CI: true
        run: npm test -- --watchAll=false

      - name: Embed commit hash in index.html
        run: |
          commit_hash=$(git rev-parse HEAD)
          index_path="build/index.html"
          if [ ! -f "$index_path" ]; then
            echo "Expected $index_path to exist after build" >&2
            exit 1
          fi
          printf '<!-- Howdy! So you like looking at other peoples html sources eh? I do it too. Anyway, the commit hash is %s -->\n' "$commit_hash" | cat - "$index_path" > "${index_path}.with-hash"
          mv "${index_path}.with-hash" "$index_path"
          echo "commit_hash=$commit_hash" >> "$GITHUB_ENV"

      - name: Preserve build output
        run: |
          rm -rf /tmp/gh-pages-build
          cp -R build /tmp/gh-pages-build

      - name: Preserve BitwiseCmdTests action
        run: |
          rm -rf /tmp/bitwisecmdtests-action
          cp -R .github/actions/bitwisecmdtests /tmp/bitwisecmdtests-action

      - name: Checkout gh-pages branch
        uses: actions/checkout@v4
        with:
          ref: gh-pages
          fetch-depth: 0

      - name: Clean gh-pages workspace
        run: |
          shopt -s dotglob
          for path in *; do
            if [ "$path" != ".git" ]; then
              rm -rf "$path"
            fi
          done

      - name: Restore BitwiseCmdTests action
        run: |
          mkdir -p .github/actions
          cp -R /tmp/bitwisecmdtests-action .github/actions/bitwisecmdtests

      - name: Copy build output to gh-pages root
        run: |
          cp -R /tmp/gh-pages-build/* ./

      - name: Start static web server
        run: |
          npx --yes http-server ./ -p 3030 --silent </dev/null > server.log 2>&1 &
          echo $! > server.pid
          npx --yes wait-on --timeout=120000 http-get://127.0.0.1:3030

      - name: Run BitwiseCmdTests
        uses: ./.github/actions/bitwisecmdtests
        with:
          test-command: test-build
          base-url: http://127.0.0.1:3030
          bitwisecmd-tests-token: ${{ secrets.BITWISECMD_TESTS_TOKEN }}

      - name: Curl static preview and stop server
        if: always()
        run: |
          curl -fsSL http://127.0.0.1:3030
          curl_status=$?
          if [ -f server.pid ]; then
            kill $(cat server.pid) || true
          fi
          rm -f server.pid
          exit $curl_status

      - name: Commit gh-pages contents
        id: commit-gh-pages
        run: |
          if [ -z "${commit_hash:-}" ]; then
            echo "commit_hash was not set" >&2
            exit 1
          fi
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add --all . ':!BitwiseCmdTests' ':!.github'
          if git diff --cached --quiet; then
            echo "No changes to commit"
            echo "commit_made=false" >> "$GITHUB_OUTPUT"
          else
            git commit -m "Application release"
            echo "commit_made=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Push gh-pages commit
        if: steps.commit-gh-pages.outputs.commit_made == 'true'
        run: git push origin gh-pages

      - name: Wait for production deployment
        run: |
          if [ -z "${commit_hash:-}" ]; then
            echo "commit_hash was not set" >&2
            exit 1
          fi
          attempts=0
          max_attempts=60
          sleep_seconds=10
          while [ $attempts -lt $max_attempts ]; do
            response=$(curl -fsS https://bitwisecmd.com || true)
            if [ -n "$response" ] && echo "$response" | grep -q "$commit_hash"; then
              echo "Deployment contains commit hash $commit_hash"
              exit 0
            fi
            attempts=$((attempts + 1))
            echo "Commit hash not present yet (attempt $attempts/$max_attempts); retrying in $sleep_seconds seconds..."
            sleep $sleep_seconds
          done
          echo "Timed out waiting for deployment to include commit hash $commit_hash" >&2
          exit 1

      - name: Run BitwiseCmdTests against production
        uses: ./.github/actions/bitwisecmdtests
        with:
          test-command: test-prod
          base-url: https://bitwisecmd.com
          bitwisecmd-tests-token: ${{ secrets.BITWISECMD_TESTS_TOKEN }}