name: Update RSS

on:
  schedule:
    # Gitea Actions 使用 UTC；每 4 小时运行一次。
    - cron: "0 */4 * * *"
  workflow_dispatch:
  push:
    paths:
      - "feeds.yml"
      - "merge.py"
      - "requirements.txt"

permissions:
  contents: write

jobs:
  update:
    runs-on: ubuntu-latest
    timeout-minutes: 20

    steps:
      - name: Checkout
        uses: https://gitea.com/actions/checkout@v4

      - name: Setup Python
        uses: https://gitea.com/actions/setup-python@v5
        with:
          python-version: "3.13"
          cache: pip

      - name: Install dependencies
        run: python -m pip install -r requirements.txt

      - name: Generate feeds
        run: python merge.py

      - name: Commit changes
        run: |
          git config user.name "RSS Bot"
          git config user.email "rss-bot@localhost"
          git add public/

          if git diff --cached --quiet; then
            echo "No RSS changes."
            exit 0
          fi

          git commit -m "chore: update RSS feeds"
          git push