name: CI - Tests & Lint

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

jobs:
  build-test:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # Necessario per permettere il push completo

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements.txt
          pip install flake8 pytest black

      - name: Set HuggingFace token
        run: echo "${{ secrets.HFREPO }}" > ~/.hf_token

      - name: Cache Hugging Face and datasets
        uses: actions/cache@v4
        with:
          path: |
            ~/.cache/huggingface
            ~/.cache/datasets
          key: ${{ runner.os }}-hf-${{ hashFiles('requirements.txt') }}

      - name: Prepare processed data
        run: |
          mkdir -p data/processed
          python src/data_preparation.py tweet_eval
          python src/data_preparation.py youtube
        env:
          HF_TOKEN: ${{ secrets.HFREPO }}

      - name: Format code with Black
        run: |
          black --line-length 100 src tests

      - name: Lint with flake8
        run: |
          flake8 src tests --max-line-length=100 --exclude=__init__.py
        continue-on-error: true

      - name: Run tests
        run: |
          export PYTHONPATH=$PYTHONPATH:$(pwd)
          pytest --maxfail=1 --disable-warnings -q
        env:
          HF_TOKEN: ${{ secrets.HFREPO }}

      - name: Configure Git identity for CI
        run: |
          git config --global user.email "ci-bot@users.noreply.github.com"
          git config --global user.name "GitHub Actions"

      - name: Push app update to Hugging Face Space
        run: |
          echo "Checking for changes before pushing..."
          if [ -n "$(git status --porcelain)" ]; then
            echo "Changes detected — committing and pushing to Hugging Face "
            git add .
            git commit -m "Auto-deploy new version [skip ci]" || echo "No commit needed"
            git pull https://user:${HF_TOKEN}@huggingface.co/spaces/Lordemarco/sentiment-fastapi main --rebase || true
            git push https://user:${HF_TOKEN}@huggingface.co/spaces/Lordemarco/sentiment-fastapi main --force
          else
            echo "No changes to push "
          fi
        env:
          HF_TOKEN: ${{ secrets.HFREPO }}