name: Update Flake

on:
  schedule:
    - cron: '0 0 * * 0' # Runs every Sunday at midnight
  workflow_dispatch:

jobs:
  update-flake:
    runs-on: macos-latest

    permissions:
      contents: write

    steps:
      - uses: actions/checkout@v4

      - name: Set up Nix
        uses: cachix/install-nix-action@v27

      - name: Update flake
        run: nix flake update

      - name: Commit and push if there are changes
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add .
          git commit -m "Update flake" || exit 0
          git push