deploy-challenges.yml

name: Deploy Challenges

on:
  push:
    branches:
      - main
    paths:
      - 'challenges/**'

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.9'

      - name: Install dependencies
        run: |
          pip install -r scripts/requirements.txt

      - name: Get changed challenges
        id: changed
        run: |
          git diff --name-only HEAD~1 HEAD | grep '^challenges/' > changed_files.txt || true

          if [ -s changed_files.txt ]; then
            # Extract unique challenge directories (e.g., challenges/easy/1_vector_add -> challenges/easy/1_vector_add)
            cat changed_files.txt | sed 's|\(challenges/[^/]*/[^/]*\)/.*|\1|' | sort -u > challenge_paths.txt

            if [ -s challenge_paths.txt ]; then
              echo "paths<<EOF" >> $GITHUB_OUTPUT
              cat challenge_paths.txt >> $GITHUB_OUTPUT
              echo "EOF" >> $GITHUB_OUTPUT
            fi
          fi

      - name: Deploy changed challenges
        if: steps.changed.outputs.paths != ''
        env:
          SERVICE_URL: ${{ secrets.LEETGPU_SERVICE_URL }}
          LEETGPU_API_KEY: ${{ secrets.LEETGPU_API_KEY }}
        run: |
          echo "${{ steps.changed.outputs.paths }}" | while read -r path; do
            if [ -d "$path" ]; then
              echo "Deploying $path"
              python scripts/update_challenges.py "$path"
            fi
          done