name: Generate Documentation Prep Files
on:
  pull_request:
    paths:
      - www/apps/**

jobs:
  check_files:
    runs-on: ubuntu-latest
    permissions:
      contents: write  # Required to push changes
    steps:
      - name: Cancel Previous Runs
        uses: styfle/cancel-workflow-action@0.11.0
        with:
          access_token: ${{ github.token }}

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 2  # Ensures we can check the diff
          ref: ${{ github.event.pull_request.head.ref }}  # Checkout PR branch

      - name: Setup Node.js environment
        uses: actions/setup-node@v3
        with:
          node-version: 20
          cache: "yarn"

      - name: Install Workspace dependencies
        working-directory: www
        run: yarn install

      - name: Build packages
        working-directory: www
        run: yarn build:packages

      - name: Run yarn prep in book
        working-directory: www/apps/book
        run: yarn prep

      - name: Run yarn prep in resources
        working-directory: www/apps/resources
        run: yarn prep

      - name: Commit and push changes (if any)
        env:
          GITHUB_TOKEN: ${{ github.token }}
        run: |
          git config --global user.name "Shahed Nasser"
          git config --global user.email "shahednasser@gmail.com"
          
          if [[ -n $(git status --porcelain www/apps/book/generated www/apps/book/public www/apps/resources/generated) ]]; then
            echo "Ran prep and generated files, committing and pushing..."
            git add www/apps/book/generated www/apps/book/public www/apps/resources/generated
            git commit -m "chore: run yarn prep automatically"
            git push origin ${{ github.event.pull_request.head.ref }}
          else
            echo "No generated files, skipping commit."
          fi