name: "build pdfjs"

on:
  push:
    branches:
      - main

permissions:
  contents: write

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - name: Installs jq
        run: |
          sudo apt-get update
          sudo apt-get -y install jq
      - uses: actions/checkout@v4
      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '18.x'
      - name: Get package.json version
        run: |
          echo "PDFJS_VERSION=v$(jq .version package.json | sed 's#\": ##g')" >> $GITHUB_ENV
      - name: Get latest pdf.js source
        run: |
          git clone --depth 5 --branch ${{ env.PDFJS_VERSION }} https://github.com/mozilla/pdf.js.git
      - name: Install pdf.js dependencies
        run: |
          cd pdf.js
          npm install
          cd ..
      - name: Install pdfjs-dist-viewer-min dependencies
        run: npm install
      - name: Build pdf.js minified
        run: |
          npx gulp --cwd pdf.js minified
      - name: Deploy into build/minified
        run: |
          rsync -rtlDPvc --delete pdf.js/build/minified/ build/minified/
          rsync -rtlDPvc --delete pdf.js/build/default_preferences/minified/ build/default_preferences/minified/web/
      - name: Commit and tag if there are changes
        run: |
          if [ -n "$(git status --porcelain)" ]; then
            git config user.name 'github-actions'
            git config user.email 'github-actions@users.noreply.github.com'
            git add -A
            git commit -m "Build of ${{ env.PDFJS_VERSION }}"
            git tag ${{ env.PDFJS_VERSION }}
            git push origin ${{ env.PDFJS_VERSION }} -f
          fi