name: demo

on:
  # Run 'test-demo' on every pull request to the main branch
  pull_request:
    branches: [main]

  # Run 'test-demo' on every push to the main branch or both jobs when a new version tag is pushed
  push:
    branches:
      - main
    tags:
      - 'v*'

  # Run 'sync-to-hub' on a scheduled cron job
  schedule:
    - cron: '0 2 10 * *'  # At 02:00 on day-of-month 10 (every month)

  # Allow manual triggering of the workflow
  workflow_dispatch:

jobs:
  test-demo:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest]
        python: ["3.10"]
    steps:
      - if: matrix.os == 'macos-latest'
        name: Install MacOS prerequisites
        run: brew install cairo pango gdk-pixbuf libffi
      - uses: actions/checkout@v5
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python }}
          architecture: x64
      - name: Cache python modules
        uses: actions/cache@v4
        with:
          path: ~/.cache/pip
          key: ${{ runner.os }}-pkg-deps-${{ matrix.python }}-${{ hashFiles('requirements.txt') }}-${{ hashFiles('demo/pt-requirements.txt') }}
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -e .[viz,html] --upgrade
          pip install -r demo/pt-requirements.txt
      - name: Run demo
        run: |
          streamlit --version
          screen -dm streamlit run demo/app.py
          sleep 10
          curl http://localhost:8501/docs

  # This job only runs when a new version tag is pushed or during the cron job or when manually triggered
  sync-to-hub:
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v') || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
    needs: test-demo
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest]
        python: ["3.10"]
    steps:
      - uses: actions/checkout@v5
        with:
          fetch-depth: 0
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python }}
          architecture: x64
      - name: Install huggingface_hub
        run: pip install huggingface-hub
      - name: Upload folder to Hugging Face
        # Only keep the requirements.txt file for the demo (PyTorch)
        run: |
          mv demo/pt-requirements.txt demo/requirements.txt

          python -c "
          from huggingface_hub import HfApi
          api = HfApi(token='${{ secrets.HF_TOKEN }}')
          repo_id = 'mindee/doctr'
          api.upload_folder(repo_id=repo_id, repo_type='space', folder_path='demo/')
          api.restart_space(repo_id=repo_id, factory_reboot=True)
          "