name: Update Contests & Commit

on:
  schedule:
    - cron: '7/15 * * * *'  # 每15分钟执行一次，避开整点高峰
  push:
    branches:
      - master
  workflow_dispatch:          # 允许手动触发

jobs:
  update:
    runs-on: ubuntu-latest
    permissions:
      contents: write        # 允许 Actions 推送代码
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Install dependencies
        run: pip install requests beautifulsoup4

      - name: Fetch contests
        run: python fetch_contests.py

      - name: Commit and push if changed
        run: |
          git config --global user.name "github-actions[bot]"
          git config --global user.email "actions@github.com"
          git add contests_all.json
          git diff --staged --quiet || (
            git commit -m "Update contest data"
            git push
          )